Download Consulta: repository:"5" Registros recuperados: 16.356 Máximo de

Consulta: repository:"5"
Registros recuperados: 16.356
Máximo de registros impressos: 2500
Data/hora: 09/06/2017 11:34:09
Combined oral toxicity of azaspiracid-1 and yessotoxin in female NMRI mice
Provedor de dados: 5
Autores: Aasen, John A. B.; Espenes, Arild; Miles, Christopher O.; Samdal, Ingunn A.; Hess, Philipp; Aune, Tore.
For many years, the presence of yessotoxins (YTXs) in shellfish has contributed to the outcome of the traditional mouse bioassay
and has on many occasions caused closure of shellfisheries. Since YTXs do not appear to cause diarrhoea in man and exert low
oral toxicity in animal experiments, it has been suggested that they should be removed from regulation. Before doing so, it is
important to determine whether the oral toxicity of YTXs is enhanced when present together with shellfish toxins known to cause
damage to the gastrointestinal tract. Consequently, mice were given high doses of YTX, at 1 or 5 mg/kg body weight, either alone
or together with azaspiracid-1 (AZA1) at 200 μg/kg. The latter has been shown to induce damage to the small intestine at this...
Tipo: Text
Palavras-chave: Azaspiracid-1; AZA1; Yessotoxin; YTX; Marine algal toxins; Absorption; Pathology; Sublethal; NMRI; Mice;
LC-MS/MS; Oral toxicity.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00034/14477/11776.pdf
Cinétique et production de deux moulières naturelles de l'Est algérois. Influence des facteurs
thermiques et anthropiques
Provedor de dados: 5
Autores: Abadaboudjema, Ym; Dauvin, Jean-claude.
A long-term survey of two mussel populations from two natural mussel beds, Bordj El Kiffan and Boudouaou, was carried out
from the end of 1984 to the beginning of 1991. Samples had been also collected from 1978-1979 then from 1992-1993, but only
from the first of these. Maximal densities were higher than 10,000 ind. m(-2), due to the spring and summer heavy spatfall. At
Bordj El Kiffan, densities of M. galloprovincialis were 50 times more important than those of P. perna. At Boudouaou, the
abundance of P. perna was 1.7 times higher than that of M. galloprovincialis. From 1986 to 1988, the mean annual biomass in dry
weight of tissue including ash was higher for P. perna at Boudouaou (0.886 kg. m(-2)) than at Bordj El Kiffan (0.486 kg. m(-2)).
For M....
Tipo: Text
Palavras-chave: Mytilus galloprovincialis; Perna perna; Long term; Production; Algerian coast.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20393/18060.pdf
Effect of Nitrate, Ammonium and Urea on Growth and Pinnatoxin G Production of Vulcanodinium
rugosum
Provedor de dados: 5
Autores: Abadie, Eric; Kaci, Lamia; Berteaux, Tom; Hess, Philipp; Sechet, Veronique; Masseret, Estelle; Rolland, Jean-luc;
Laabir, Mohamed.
ulcanodinium rugosum, a recently described dinoflagellate species producing a potent neurotoxin (pinnatoxin G), has been
identified in French Mediterranean lagoons and was responsible for recurrent episodes of shellfish toxicity detected by mouse
bioassay. Until now, the biology and physiology of V. rugosum have not been fully investigated. We studied the growth
characteristics and toxicity of a V. rugosum strain (IFR-VRU-01), isolated in the Ingril lagoon in June 2009 (North-Western
French Mediterranean Sea). It was cultivated in Enriched Natural Sea Water (ENSW) with organic (urea) and inorganic
(ammonium and nitrate) nitrogen, at a temperature of 25 °C and irradiance of 100 μmol/m2·s−1. Results showed that ammonium
was assimilated by cells more rapidly...
Tipo: Text
Palavras-chave: Vulcanodinium rugosum; Pinnatoxin G; Ingril lagoon; Growth; Nitrogen source.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00276/38748/37290.pdf
Toxin and Growth Responses of the Neurotoxic Dinoflagellate Vulcanodinium rugosum to Varying
Temperature and Salinity
Provedor de dados: 5
Autores: Abadie, Eric; Muguet, Alexia; Berteaux, Tom; Chomerat, Nicolas; Hess, Philipp; Roque D'Orbcastel, Emmanuelle;
Masseret, Estelle; Laabir, Mohamed.
Vulcanodinium rugosum, a recently described species, produces pinnatoxins. The IFR-VRU-01 strain, isolated from a French
Mediterranean lagoon in 2010 and identified as the causative dinoflagellate contaminating mussels in the Ingril Lagoon (French
Mediterranean) with pinnatoxin-G, was grown in an enriched natural seawater medium. We tested the effect of temperature and
salinity on growth, pinnatoxin-G production and chlorophyll a levels of this dinoflagellate. These factors were tested in
combinations of five temperatures (15, 20, 25, 30 and 35 °C) and five salinities (20, 25, 30, 35 and 40) at an irradiance of 100
µmol photon m−2 s−1. V. rugosum can grow at temperatures and salinities ranging from 20 °C to 30 °C and 20 to 40,
respectively. The optimal...
Tipo: Text
Palavras-chave: Vulcanodinium rugosum; Mediterranean Ingril Lagoon; Toxin production; Growth conditions; Temperature;
Salinity.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00333/44429/44095.pdf
Contamination de l'etang de Thau par Alexandrium tamarense. Episode de novembre a decembre
1998
Provedor de dados: 5
Autores: Abadie, Eric; Zouher, Amzil; Belin, Catherine; Comps, Marie-annick; Elziere-papayanni, Panayota; Lassus, Patrick; Le
Bec, Claude; Marcaillou-le Baut, Claire; Nezan, Elizabeth; Poggi, Robert.
A bloom of the toxic dinoflagellate Alexandrium tamarense was observed for the first time in Thau iagoon between November
and December 1998. Maximum cell concentrations detected in shellfish farming areas (85 000 Cells/1) were high enough to make
mussels and clams unsuitable for human consumption (max. 850 ug. STX eq.100 g'1) while toxic levels in oysters did not exceed,
or even reach, the international public health threshold established for PSP toxins. This event, new to French Mediterranean
waters, was investigated by both local and national veterinary services and by the Ifremer teams involved in the National
Monitoring Network for Phytoplankton and Phycotoxines (Réphy). The chronological and operational description of the event
was compared with data...
Tipo: Text
Palavras-chave: Alexandrium; Monitoring; Toxic dinoflagellates; Thau lagoon; Alexandrium; Surveillance; Dinoflagellés
toxiques; Etang de Thau.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-884.pdf
Les rejets chlorés en mer - Aspects chimiques de la chloration des eaux et évaluation des nuisances
pour le milieu
Provedor de dados: 5
Autores: Abarnou, Alain.
Une industrialisation et une urbanisation accrues du littoral ont pu entraîner une augmentation de divers rejets dans le milieu
marin. Le problème des rejets chlorés se pose en raison des débits concernés et aussi de la diversité des composés à priori toxiques
ainsi dispersés. La chloration a pour but l'élimination des micro-organismes des eaux traitées : germes pathogènes dans le cas de
la désinfection des effluents de stations d'épuration des eaux usées, organismes susceptibles de se fixer et de se développer sur les
parois des circuits dans le cas du traitement des eaux de refroidissement des usines implantées en bord de mer. Cette activité
biocide doit se limiter aux seuls organismes visés et ne pas entraîner la présence dans les eaux d'oxydants...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-7023.pdf
Utilisation d’espèces halieutiques exploitées comme indicateurs de la contamination chimique en zone
littorale
Provedor de dados: 5
Autores: Abarnou, Alain.
The concept of biological indicator relies upon the assumption that the contamination measured in biological tissues reflects that
of the aquatic environment. This study aims to update the knowledge on contamination levels of various chemical contaminants in
a few exploited fish species from various areas along the French coastline. The objective of the work is to evaluate the possibility
of differentiating the various coastal zones according to the contamination levels measured in fish living there. Several groups of
contaminants were followed: PCBs (marker PCBs and dioxin-like PCBs), dioxins (PCCDs and PCDFs), PBDEs, PFCs and total
mercury). These contaminants were mainly measured in four fish species: the sea bass (Dicentrarchus labrax), the mackerel...
Tipo: Text
Palavras-chave: Espèces indicatrices; Poisson; Environnement marin; POP; PCB; Dioxines; PBDE; PFC; Biological indicators;
Fishes; Marine environment; POPs; PCBs; Dioxins; PBDEs; PFCs.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12475/9315.pdf
Les polychlorobiphenyles ( PCB ) en Baie de Seine
Provedor de dados: 5
Autores: Abarnou, Alain.
PCB contamination and i ts relationship wi th suspended particulate matter (SPM) have been studied in water from the Seine
estuary and the baie de Seine, in July 1985 and February 1986. PCB chromatograms are very similar and characterize a chronic
contamination. PCB concentrations vary from 2 ng/l in the marine zone up to 210 ng/l in the estuary. SPM and PCB
concentrations are weIl correlated. Highest PCB concentrations are measured in February due to higher SPM inputs mainly made
of finer particles.
Tipo: Text
Palavras-chave: PCB; Seine; Fleuve; Estuaire; Baie; Matières en suspension; PCB; Seine; River; Estuary; Bay; Suspended
particulate matter.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00138/24924/23020.pdf
Aspects chimiques de la chloration de l'eau de mer
Provedor de dados: 5
Autores: Abarnou, Alain.
Ce travail a été réalisé dans le cadre des Etudes générales destinées à préciser les effets des échauffements et de la chloration sur
la vie marine. Parallèlement aux études des effets biologiques immédiats de la chloration sur la vie marine on s'est intéressé aux
"Aspects chimiques de la chloration de l'eau de mer".
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00045/15649/13052.pdf
Contamination chimique du milieu marin : de la mesure à l'évaluation des risques
Provedor de dados: 5
Autores: Abarnou, Alain.
This activity report entitled (“Chemical contamination of the marine environment: from measurement to risk assessment”)
summarizes the main stages my career at Ifremer from November 1975 to june 2013. The first chapter deals with the seawater
chlorination and chlorinated waters released into the sea, the identification and the conditions of the formation of various
by-product of these processes. The second chapter concerns PCBs, their nature, their chemical analysis in environmental matrices.
PCBs are considered as the best examples of persistant and bioaccumulable compounds and therefore, in all this report they are
flagship contaminants to which other groups of studied substances are compared. The third chapter refers to studies performed
within marine...
Tipo: Text
Palavras-chave: Chlore; Chloration de l’eau de mer; Oxydant; Bromoforme; Impact environnemental; Mécanismes réactionnels;
Désinfection; Polluants organiques persistants (POP); PCB; Dioxines; HAP; PBDE; Chlordécone; Baie de Seine; Organismes
marins; Moules; Poissons; Surveillance environnementale; Analyse; Bioaccumulation; Chlorine; Seawater chlorination; Oxidizing
agent; Bromoform; Environmental impact; Reaction mechanisms; Disinfection; Persitsent organic pollutants (POPs); PCBs;
Dioxins; PAHs; PBDEs; Chlordecone (kepone); Baie de Seine; Marine organisms; Mussel; Fish; Environmental monitoring;
Chemical analysis; Bioaccumulation.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00168/27946/26237.pdf
Rejets urbains en mer. Chloration des effluents urbains avant rejet en mer. Synthèse bibliographique
Provedor de dados: 5
Autores: Abarnou, Alain; Batt, A.; Guillaud, Jean-francois; Miossec, Laurence.
This literature'review presents chemical and microbiological aspects of waste water chlorination, and also effects of chlorinated
sewages on marine organisms.
Tipo: Text
Palavras-chave: Chloration; Effluents urbains; Bibliographie; Chlorination; Urban waste water; Bibliography.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00138/24925/23018.pdf
Etude sur les contaminants émergents dans les eaux françaises - Rapport de l'étude prospective sur les
contaminants émergents dans les eaux littorales de la métropole et des DOM
Provedor de dados: 5
Autores: Abarnou, Alain; Bocquene, Gilles; Champin, Maryline; Durand, Gaetane; Gonzalez, Jean-louis; Le Moigne, Morgan;
Masson, Jean-claude; Priou, Pierre; Tixier, Celine.
This study contributes to inventory programme on emerging pollutants in French waters and to the general reflection which will
enable to update the list of relevant substnaces to be included in the new monitoring programmes to come. This work concerns the
coastal part of the inventory programme on marine waters and sediments of France and five overseas french departments (OFD).
In this goal, passive sampling techniques and direct extraction techniques have been tested through the implementation of in situ
systems integrators POCIS (Polar Organic Chemical Integrative Sampler) and the extraction by SBSE bars (Stir bar sorptive
extraction) directly in the waters sampled. Finally, analyzes of sediment completed the acquisition of data. Arount 40 stations
were...
Tipo: Text
Palavras-chave: Eaux littorales; Eaux côtières; Sédiment; Métropole; DOM; Pollution; Substances chimiques; POCIS; SBSE;
Coastal waters; Sediment; France; Overseas french departments; Pollution; Chemicals contaminants; POCIS; SBSE.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00259/36994/35483.pdf
Distribution et devenir de contaminants persistants dans les écosystèmes littoraux. Comparaison
Manche ouest-Manche est
Provedor de dados: 5
Autores: Abarnou, Alain; Duchemin, Jean.
This study on the "distribution and future of persistent contaminants in coastal ecosystems, comparison between the western
Channel and the eastern Channel" was carried out by the Ifremer for the Water Agency of Seine-Normandie. It provides
information on the level of relatively well-known and regulated contaminants (cadmium, mercury, lead, BPC, dioxins, PAH) in
sea products, as well as on that of less systematically recorded substances (silver, copper, nickel, zinc, polybrominated biphenyls,
ethers, alkylphenols, phtalats). The Lower-Norman coast, from the Seine estuary and the Mont Saint-Michel, is particularly
interesting for this study since this limited geographic area is home to the most extreme levels of contamination recorded along the
entire...
Tipo: Text
Palavras-chave: Exposition; Sécurité alimentaire évaluation des risques chimiques biotransformation bioaccumulation transport
trophique Basse Normandie environnement littoral poissons moules métaux HAP phtalates PBDE dioxines PCB Polluants
organiques persistants (POP).
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/rapport-6148.pdf
La chloration des effluents urbains avant rejet en mer
Provedor de dados: 5
Autores: Abarnou, Alain; Guillaud, Jean-francois; Miossec, Laurence; Batt, Agnes.
Chlorination of wastewater prior to effluent discharge into the sea is used as disinfecting treatment to preserve salubrity of the
coastal marine environment wich is necessary for such activities as shellfish-farming and nautical sports. The disinfecting capacity
of chlorine results from its oxydizing property which gives rise to various chemical reactions with constituents present in wastes.
ln wastewaters, highly loaded with organic matter and ammonia, monochloramine is the main active chlorine species. Due to
organic matter oxydation, thèse active chlorine species rapidly disappear by transformation into non toxic chloride. However, a
very sm ail part of the initial chlorine dose can be found as stable and toxic chloroorganics. Monochloramine is also...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00173/28438/26772.pdf
Contamination par les organochlorés des dauphins de Commerson des îles Kerguelen
Provedor de dados: 5
Autores: Abarnou, Alain; Robineau, Daniel; Michel, Pierre.
Top predators like marine mammals have been intensively used for monitoring the contamination of the marine environment,
particularly in industrialized coastal areas of the Northern Atlantic Ocean. Such data concerning contamination in the Southern
hemisphere are very scarce. Samples were taken in the fatty protuberance of the forehead (melon) from eleven Commerson's
dolphins (Cephalorhynchus commersonii, Lacépède, 1804) caught in the coastal waters of the Kerguelen Islands (Southern Indian
Ocean). They were analyzed for DDT, PCB and HCB, using capillary gaz chromatography. The levels of contamination [DDT= 1
150 ± 650, PCB = 1 150 ± 770, HCB=500±300ng/g of extracted matter (lipids)] are between ten and a hundred times Jess than
those found in similar...
Tipo: Text
Palavras-chave: Organochlorés; Mammifères marins; Océan austral; Iles Kerguelen; Organochlorines; Marine mammals;
Southern Ocean; Kerguelen Islands.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00111/22273/19948.pdf
Contamination de l'estuaire et de la baie de Seine par le PCB-Bilan des etudes
Provedor de dados: 5
Autores: Abarnou, Alain; Simon, S.
This report is a synthesis of data concerning PCB concentrations in water, sediments and organisms (Bivalvia, Malacostraca,
Pisces). Water analysis shows that Seine River is the primordial factor affecting PCB dispersion in the bay. Sediment
contamination is higher near estuary along Calvados coast. PCB levels in Mytilidae and in Pectinidae set the problem of polluant
origin, dispersion and effects on estuarine organisms.
Tipo: Text
Palavras-chave: Bioaccumulation; Sediment pollution; Water pollution; PCB; Environmental impact.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1319.pdf
Characterization of sperm motility in sea bass: the effect of heavy metals and physicochemical
variables on sperm motility
Provedor de dados: 5
Autores: Abascal, F; Cosson, J; Fauvel, Christian.
Computer assisted sperm analysis (CASA) was used to characterize the motility of sea bass Dicentrarchus labrax spermatozoa and
to study the effect of several physicochemical variables and heavy metals on sperm swimming performance. Duration of sperm
motility in sea bass was very short (< 50 s). During the first 20 s all the motility variables measured remained approximately
constant, the velocity and linearity of the movement being maximum during this period, while both variables decreased sharply
later. While slight variations in pH did not significantly modify sperm swimming performance, changes in osmolality affected all
the measured motility variables. Two of the heavy metals tested, Cu2+ and Pb2+, did not affect sperm motility when the
activating...
Tipo: Text
Palavras-chave: Sperm; Heavy metals; Dicentrarchus labrax; CASA.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4765.pdf
Reconnaissance des fonds de pêche de la Guyane française - Campagne de la "Thalassa" dans la
région Antilles-Guyane 15 juin - 1er septembre 1971
Provedor de dados: 5
Autores: Abbes, R; Aldebert, Yvonne; Dorel, D; Leroy, C; Le Men, R; Prado, J; Saint-felix, C; Commandant Corre,.
Les résultats des recherches effectuées par la "Thalassa", au cours de l'été 1971, sur le plateau de la Guyane française, montrent
qu'à cette période de l'année les rendements étaient nettement insuffisants pour donner lieu à une exploitation rentable de la part
des flotilles de pêche qui avaient d'ailleurs déserté ce secteur. Toutefois, la courte durée de la campagne ne permet pas d'extrapoler
ces résultats à un cycle annuel complet car on connaît mal le comportement des crustacés et des poissons de cette région en
fonction des variations du milieu. Les conditions hydrologiques rencontrées sont, en effet, sujettes à des fluctuations plus ou
moins importantes, notamment dans la couche superficielle qui est influencée par les apports irréguliers de...
Tipo: Text
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-7015.pdf
Remarques sur quelques cephalopodes mésopelagiques du Golfe de Gascogne
Provedor de dados: 5
Autores: Abbes, Rene.
The teuthological fauna of the Gulf of Gascony is still very imperfectly understood, especially in the pelagic area. The major
expeditions have rarely worked east of the line that links the Grand Sole to the reefs of Cape Finisterre. The data that we have
available for the region come from independent observations by H. FISCHER and L. JOUBIN (1906) and by L. JOUBIN (1895,
1900, 1920 and 1924). The most important research work is thanks to J. BOUXIN and R. LEGENDRE (1936), who studied very
many stomach contents of tunny. In 1966 and 1967, the Thalassa had the opportunity to conduct 17 deep pelagic catches using
an Isaacs-Kidd net, at immersions spaced out between 500 and 1,600 metres. They brought in twelve species of cephalopods:
Heteroteuthis dispac...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-3138.pdf
Bilan des connaissances acquises sur la faune et la flore sous-marines de la région de Djibouti
Provedor de dados: 5
Autores: Abbes, Rene.
Les connaissances que l'IFREMER a pu acquérir sur la flore et la faune sous-marines du secteur de Djibouti remontent, pour une
grande partie d'entre-elles, aux années 1973/1974. En effet, à cette époque l'ISTPM avait été sollicité par les autorités locales pour
évaluer les possibilités de développement de la pêche dans la région. Dans ce but un programme de recherches appliquées avait
été élaboré ; il portait sur les points suivants : - inventaire et répartition spatio-temporelle des espèces d'intérêt commercial ; étude de la distribution et du comportement des principales espèces en fonction des variations des conditions physico-chimiques,
du milieu ; - expérimentation d'engins de pêche adéquats et estimation de leurs rendements. Ces actions ont été...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00046/15677/13080.pdf
Rejets en Méditerranée de résidus de fabrication d'oxyde de titane - Rapport de la mission effectué du
2 au 18 septembre 1972
Provedor de dados: 5
Autores: Abbes, Rene.
Cette mission, prise en charge par le Ministère des Affaires étrangères, s'inscrivait dans le cadre des études menées par le
Laboratoire central d'Hydrobiologie de Rome sur les effets dos rejets, au nord du Cap Corse ,des résidus de fabrication de l'oxycle
de titane par l'usine italienne Montedison.
Tipo: Text
Ano: 1972
URL: http://archimer.ifremer.fr/doc/00045/15653/13056.pdf
Ressources halieutiques d'interet potentiel pour la peche industrielle et la grande peche française
Provedor de dados: 5
Autores: Abbes, Rene.
This document takes stock of our knowledge on the exploitation, biology, the dynamics of the populations, the inventory position
and possibilities of valorization of species not exploited traditionally by the fleets industrial and of great French fishing, but being
of potential interest for them. Thus, twelve groups of species, or species, following are analyzed: - deep selacians - the sardine large Argentina
- pomegranates
- the silver plated hake - the blue whiting - fish of Kerguelen - the chinchard - the black
sabre - the halibut of Greenland - squids
Tipo: Text
Palavras-chave: Inventory positions; Biology; Exploitation; Species industrial halieutic; Etats des stocks; Biologie; Exploitation;
Espèce halieutique industrielle.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-1585.pdf
Analyse des activités de pêche traditionnelle en Iran, entre Khoramshar et Busher et résultats des
pêches expérimentales effectuées dans le golfe d'Oman - Mission du 28 février au 23 mars 1977
Provedor de dados: 5
Autores: Abbes, Rene; Farrugio, Henri.
L'élaboration des programmes de recherche en matière d'océanographie des pêches de l'Institut des Pêches maritimes de l'Iran
nécessite une connaissance aussi complète que possible des activités de la pêche traditionnelle sur tout le littoral iranien. Dans ce
but et dans le cadre des accords de coopération entre l'ISTPM et l 'IRSTPM de la Société des Pêcheries" du Sud de l'Iran, une série
de deux missions de chercheurs français avait été programmée.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00047/15778/13179.pdf
Analyse des activités de la pêche traditionnelle sur les côtes iraniennes en Busher et Bandar Abbas Rapport de la 2ème mission 21 juin - 23 juillet 1976
Provedor de dados: 5
Autores: Abbes, Rene; Farrugio, Henri.
Soucieux de promouvoir, de façon rationnelle, l'exploitation des ressources marines des côtes bordant le golfe Persique et la mer
d'Oman le Gouvernement iranien a décidé la création d'un Institut de recherches scientifiques et techniques des Pêches maritimes.
1a mise sur pied d'un tel Institut a été confiée à la Société gouvernementale des Pêcheries du Sud de l'Iran (1) dont les dirigeants
ont sollicité la collaboration d'un Institut de recherches français disposant d'une longue expérience en la matière et susceptible de
les conseiller sur l'organisation d'une telle entreprise. C'est ainsi, qu'en mars 1976, une mission composée du Directeur et de trois
experts de l'Institut scientifique et technique des Pêches maritimes français, s'est rendue sur place...
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00047/15779/13180.pdf
Analyse de quelques pêches pélagiques profondes dans le golfe de Gascogne (Annélides,
Céphalopodes, Crustacés décapodes, poissons)
Provedor de dados: 5
Autores: Abbes, Rene; Quero, Jean-claude.
Au cours de ses campagnes dans le golfe de Gascogne en 1966, 1967 et 1968 la Thalassa a effectué 17 pêches planctoniques
profondes à l'aide d'un chalut Isaacs-Kidd. Parmi elles, huit ont été faites à des profondeurs comprises entre 850 et 1100 m.
Tipo: Text
Palavras-chave: Pêche; Golfe de Gascogne; Répartition espèces; Capture.
Ano: 1968
URL: http://archimer.ifremer.fr/doc/00142/25322/23396.pdf
Particulate organic-matter in the subsurface chlorophyll maximum layer of the southeastern
mediterranean
Provedor de dados: 5
Autores: Abdelmoati, Ar.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00131/24250/22243.pdf
Use of MEDITS trawl survey data and commercial fleet information for the assessment of some
Mediterranean demersal resources
Provedor de dados: 5
Autores: Abella, Alvaro; Belluscio, Andrea; Bertrand, Jacques; Carbonara, Pier Luigi; Giordano, Daniela; Sbrana, Mario;
Zamboni, Ada.
An assessment of the state of the fisheries of hake, red mullet and Norway lobster was carried out by using trawl survey data from
the MEDITS research programme. The assessment was performed by means of the application of a composite model utilising the
total mortality rate Z as a direct index of fishing effort. The studied area covered the whole western Italian coast (Ligurian and
Tyrrhenian seas) and the eastern coasts of Corsica. The area was divided into twelve sub-areas, considered to be of similar
ecological characteristics with similar initial productivity but considered to experience different rates of exploitation. Available
information on fishing fleets and their geographic distribution was used in creating sub-areas. For each one of these...
Tipo: Text
Palavras-chave: Modèles composites; Estimation des stocks; Merluccius merluccius; Mullus barbatus; Nephrops norvegicus;
Méditerranée; Composite models; Stock assessment; Merluccius merluccius; Mullus barbatus; Nephrops norvegicus;
Mediterranean sea.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00188/29876/28360.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville. Année 2014 - Rapport
scientifique annuel
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Antajan, Elvire; Courtay, Gaelle; Dreves, Luc; Lamort, Laure; Martin, Jocelyne;
Pierre-duplessix, Olivier; Schlaich, Ivan.
The monitoring report (n° 32) of the nuclear power plant located in Flamanville (France) takes into account studies carried out
between March and September 2014. Environmental effects and potential impacts of the aquatic system are reported through
different chapters: hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos. This
power plant has been in operation for twenty nine years.
Tipo: Text
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear
power plant; Benthos; Fisheries; Pelagos.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00267/37777/35830.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville. Année 2015
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Antajan, Elvire; Courtay, Gaelle; Dreves, Luc; Lamort, Laure; Martin, Jocelyne;
Pierre-duplessix, Olivier; Schlaich, Ivan.
The monitoring report (n° 33) of the nuclear power plant located in Flamanville (France) takes into account studies carried out
between March and September 2015. Environmental effects and potential impacts of the aquatic system are reported through
different chapters: hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos. This
power plant has been in operation for thirty years.
Tipo: Text
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear
power plant; Benthos; Fisheries; Pelagos.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00327/43799/43360.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville - Année 2013 - Rapport
scientifique annuel
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Antajan, Elvire; Devreker, David; Dreves, Luc; Lamort, Laure; Martin, Jocelyne;
Pierre-duplessix, Olivier; Schapira, Mathilde; Schlaich, Ivan.
The monitoring report (n° 31) of the nuclear power plant located in Flamanville (France) takes into account studies carried out
between March and september 2013. Environmental effects and potential impacts of the aquatic system are reported through
different chapters : hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos.
This power plant has been in operation for twenty eight years.
Tipo: Text
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear
power plant; Benthos; Fisheries; Pelagos.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00189/30033/28519.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville. Année 2012 - Rapport
scientifique annuel
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Antajan, Elvire; Devreker, David; Dreves, Luc; Martin, Jocelyne; Monbet, Philippe; Schapira,
Mathilde; Schlaich, Ivan.
The monitoring report (n° 30) of the nuclear power plant located in Flamanville (France) takes into account studies carried out
between March and September 2012. Environmental effects and potential impacts of the aquatic system are reported through
different chapters : hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos. This
power plant has been in operation for twenty seven years.
Tipo: Text
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear
power plant; Benthos; Fisheries; Pelagos.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00139/24998/23096.pdf
Etude biomorphosédimentaire du domaine marin côtier entre Dieppe et Criel-sur-Mer
(Seine-Maritime) - Bencaux - Mai 2008 - CNPE Penly
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Clabaut, Philippe; Dreves, Luc; Gaffet, Jean-dominique.
Dans le cadre de la surveillance du milieu marin du site électronucléaire de Penly (Seine-Maritime), le domaine benthique côtier
de Dieppe à Criel-sur-Mer a fait l'objet en juin 2008 d'une prospection biomorphosédimentaire comme celles réalisées en 1988,
1992, 1996, 2000 et 2004. L'étude morpho-sédimentaire et les prélèvements faunistiques ont été réalisés du 4 au 12 mai 2008 à
bord du N/O Thalia. Des techniques complémentaires ont été mises en œuvre : - le sonar à balayage latéral, couplé à un sondeur
bathymétrique permettant une cartographie en continu des fonds - la benne Van Veen pour les prélèvements sédimentologiques la benne Hamon pour les prélèvements faunistiques - le sondeur multifaisceaux pour réaliser un levé bathymétrique partiel Le...
Tipo: Text
Palavras-chave: Centrale nucléaire; Penly; Surveillance; Benthos; Faune; Sédiment.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00076/18675/16222.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville, année 2010
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Dreves, Luc; Antajan, Elvire; Fiant, Liliane; Martin, Jocelyne; Monbet, Philippe; Schlaich,
Ivan.
L'étude surveillance n°28 du site électronucléaire de Flamanville (département de la Manche) concerne l'année 2010. Sont étudiés
les domaines benthique, halieutique et pélagique. L'année 2010 est la 25ème année de fonctionnement de la Centrale de
Flamanville.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00045/15595/12997.pdf
Surveillance écologique et halieutique du site électronucléaire de Flamanville - Année 2011
Provedor de dados: 5
Autores: Abernot-le Gac, Chantal; Dreves, Luc; Antajan, Elvire; Martin, Jocelyne; Monbet, Philippe; Schapira, Mathilde;
Schlaich, Ivan.
Dans le cadre de l'implantation d'une Centrale électronucléaire sur le littoral de la commune de Flamanville (département de la
Manche) et du contexte législatif en vigueur, Électricité de France a confié à l'IFREMER les études écologique et halieutique du
milieu marin encadrant ce site. Sont étudiés les domaines benthique, halieutique et pélagique. L’année 2011 est la 26ème année de
fonctionnement du CNPE de Flamanville. Pour ce site de Flamanville, les travaux de prélèvements et d’analyses sont désormais
réalisés dans le cadre de la décision n°2010-DC-0189 de l’Autorité de sûreté nucléaire du 7 juillet 2010 fixant à Electricité de
France les prescriptions relatives aux modalités de prélèvement et de consommation d’eau et de rejets dans l’environnement...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00076/18677/16223.pdf
La necessite d'un systeme statistique integre pour l'evaluation des resultats economiques de la peche
maritime.
Provedor de dados: 5
Autores: Abgrall, J; Congar, R.
This study highlights the economic interrelations among all boats, focusing on two particular cases, on the one hand the French
Channel trawler fleet (1978 to 1980), the Quebec trawler fleet (1974 to 1982) on the other. The present results show the extent of
changes in vessel profit or loss productivity and the sacrifice owners and crew have to make in order to survive. Results also show
the disparities of situations between the different sorts of vessels within a common bioeconomic environment.
Tipo: Text
Palavras-chave: Quebec; Canada; ANW; Marketing; Fishery statistics; Economic analysis; Fishery economics.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1801.pdf
Lead and its isotopes in the sediment of three sites on the Lebanese coast: Identification of
contamination sources and mobility
Provedor de dados: 5
Autores: Abi Ghanem, Carine; Chiffoleau, Jean-francois; Bermond, A.; Nakhle, K.; Khalaf, G.; Borschneck, D.; Cossa, Daniel.
Lead concentrations and isotopic composition of sediment samples collected from three sites within the Lebanese coastal zones
were measured: at Akkar, Dora and Selaata. Akkar is located far from any direct source of contamination, while Dora and Selaata
receive urban and industrial wastes, respectively. Low Pb concentrations (6-16 mu g g(-1)) were detected in the Akkar sediments,
and high concentrations of Pb (70-101 mu g g(-1)) were detected in the Dora sediments. Measuring stable isotope ratios of Pb
makes it possible to identify the principal sources of Pb in the Akkar sediments as Pb emitted from gasoline combustion and Pb
originating from natural sources. On the other hand, Pb stable isotopic ratios in Dora sediments indicate that they are more
highly...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7326.pdf
Mercury Distribution and Methylmercury Mobility in the Sediments of Three Sites on the Lebanese
Coast, Eastern Mediterranean
Provedor de dados: 5
Autores: Abi-ghanem, Carine; Nakhle, Khaled; Khalaf, Gaby; Cossa, Daniel.
Mercury (Hg) contamination in coastal sediments has been widely studied in clay deposits; however, equivalent results on
carbonated sediments are scarce. This article aims to study Hg distribution in Lebanese carbonate coastal marine sediments
(Eastern Mediterranean) in order to characterize their contamination level and to explore the postdepositional mobility of
methylmercury (MeHg) in the deposits. Vertical distribution profiles of total (HgT) and MeHg have been established for the solid
phase of sediment cores collected in various near-shore environments chosen for their hypothetical various degrees of
anthropization. In addition, dissolved MeHg was determined in sediment pore waters to test its mobility and potential availability
for biota. Three...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00039/15058/14031.pdf
Exposure to the Paralytic Shellfish Toxin Producer Alexandrium catenella Increases the Susceptibility
of the Oyster Crassostrea gigas to Pathogenic Vibrios
Provedor de dados: 5
Autores: Abi-khalil, Celina; Lopez-joven, Carmen; Abadie, Eric; Savar, Veronique; Amzil, Zouher; Laabir, Mohamed; Rolland,
Jean-luc.
The multifactorial etiology of massive Crassostrea gigas summer mortalities results from complex interactions between oysters,
opportunistic pathogens and environmental factors. In a field survey conducted in 2014 in the Mediterranean Thau Lagoon
(France), we evidenced that the development of the toxic dinoflagellate Alexandrium catenella, which produces paralytic shellfish
toxins (PSTs), was concomitant with the accumulation of PSTs in oyster flesh and the occurrence of C. gigas mortalities. In order
to investigate the possible role of toxic algae in this complex disease, we experimentally infected C. gigas oyster juveniles with
Vibrio tasmaniensis strain LGP32, a strain associated with oyster summer mortalities, after oysters were exposed to
Alexandrium...
Tipo: Text
Palavras-chave: Harmful algae; Environment; Interaction; Pathogens; Defense; Paralytic shellfish toxin.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00309/42016/41308.pdf
High Resolution Altimetry Reveals New Characteristics of the December 2004 Indian Ocean Tsunami
Provedor de dados: 5
Autores: Ablain, Michaël; Dorandeu, Joël; Le Traon, Pierre-yves; Sladen, Anthony.
The Indian Ocean tsunami, which occurred on December 26, 2004, was the first to be clearly observed using satellite altimeters.
The wave amplitude observed in deep-ocean by TOPEX and Jason-1 was close to 60 cm about 2 hours after the earthquake.
Envisat crossed the tsunami wave 3h15 after the earthquake and measured a 35 cm wave. Even though it flew over the tsunami
7h20 after the earthquake, GFO still observed a wave close to 20 cm. To better extract the tsunami signal from altimeter
measurements, a specific ocean variability mapping technique is used. This technique proves to be mandatory for discriminating
tsunami waves from other ocean signals. Altimeter signals are then compared with those derived from the CEA (Commissariat à
l'Energie Atomique) model...
Tipo: Text
Palavras-chave: Wave analysis; Tsunamis; Earthquakes; Sea level changes; Satellite altimetry.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1174.pdf
Lipid requirements of shrimp
Provedor de dados: 5
Autores: Abramo D', L.
A review of lipid requirements of shrimp and other crustacean species, when applicable, is presented. Qualitative requirements of
crustaceans for cholesterol, fatty acids and phospholipids have been documented, but quantitative requirements generally remain
undefined. Potential interrelationships between different classes of lipids that may influence requirements as well as differences
due to age and species need to be investigated. A more accurate definition of lipid requirements can be achieved by supporting
traditional evaluations based upon weight gain and survival with biochemical or histological evidence.
Tipo: Text
Palavras-chave: Malacostraca; Biochemical analysis; Nutrients (mineral); Growth; Survival; Cholesterol; Fatty acids; Lipids.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1470.pdf
Water column and recent sediment data on diatoms and coccolithophorids, off Portugal, confirm
sediment record of upwelling events
Provedor de dados: 5
Autores: Abrantes, F; Moita, Mt.
Diatom and coccolithophorid abundance and diatom assemblage composition found in the water column along the Portuguese
margin, during upwelling and non-upwelling conditions, are compared to the distribution patterns observed in the recent
sediments from the same area. The water column results indicate a one order of magnitude increase in phytoplankton biomass
during upwelling conditions (summer). with diatoms being the most important contributors. Coccolithophorids, on the contrary,
dominate the phytoplankton in winter (non-upwelling). The comparison of the upwelling and non-upwelling spatial distribution of
these phytoplankton groups to their sedimentary record reveals the sediment record as a reflection of the upwelling situation,
preserving most of its...
Tipo: Text
Palavras-chave: Upwelling; Portugal; Diatomée; Colonne d’eau; Sédiment; Upwelling; Portugal; Diatom; Water column;
Sediment.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43613/43915.pdf
Water column and recent sediment data on diatoms and coccolithophorids, off Portugal, confirm
sediment record of upwelling events
Provedor de dados: 5
Autores: Abrantes, F; Moita, Mt.
Diatom and coccolithophorid abundance and diatom assemblage composition found in the water column along the Portuguese
margin, during upwelling and non-upwelling conditions, are compared to the distribution patterns observed in the recent
sediments from the same area. The water column results indicate a one order of magnitude increase in phytoplankton biomass
during upwelling conditions (summer), with diatoms being the most important contributors. Coccolithophorids, on the contrary,
dominate the phytoplankton in winter (non-upwelling), The comparison of the upwelling and non-upwelling spatial distribution of
these phytoplankton groups to their sedimentary record reveals the sediment record as a reflection of the upwelling situation,
preserving most of its...
Tipo: Text
Palavras-chave: Upwelling; Portugal; Diatomée; Colonne d'eau; Sédiment; Upwelling; Portugal; Diatom; Water column;
Sediment.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43630/43253.pdf
Diatom assemblages in surface sediments reflect coastal upwelling off southern portugal
Provedor de dados: 5
Autores: Abrantes, Ffg; Sancetta, C.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00112/22328/20001.pdf
Les enjeux de la recherche en économie maritime
Provedor de dados: 5
Autores: Abric, M; Weber, Jacques.
In September 1989, Mr Pierre Papon, Chairman of the IFREMER, expressed his wish for a study on the issues of research in
marine economy. Carried out under the direction of Jacques Weber, this document is the result of this study. Dealing with marine
economy equals, mutatis mutandis, dealing with terrestrial economy: the uniqueness of the subject, economy, as that of the marine
element, hides a wide heterogeneity and a multiplicity of research questions. This is the reason why eight different fields were
chosen to be investigated. It was decided to take an inventory, for each field, of all the specialised research centres, and to
interview their directors or some specialists. Interviews were thus carried out by sector.
Tipo: Text
Palavras-chave: SEM; Economie travail; Aménagement; Gestion; Recherche; Economie maritime.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-3903.pdf
Biogeochemical transformations of dissolved organic matter at the sediment-water interface: results
from in situ incubations within benthic chambers
Provedor de dados: 5
Autores: Accornero, A; Picon, P; De Bovee, F.
Biogeochemical transformations of dissolved organic matter at the sediment-water interface were investigated by the use of
benthic chambers in the western Gulf of Lions. The experimental approach used for this study consisted of in situ incubations of
radiolabeled glutamic acid ((14)C-Glu), followed by a sequential extraction allowing the quantification of the radioactivity
associated to different chemical fractions, representative of different biogeochemical processes. This technique was devised to
simulate the fate of simple dissolved compounds resulting from the degradation of particulate organic matter near the seafloor. In
our experiment the substrate underwent both biotic (mineralization, bacterial incorporation) and abiotic (geopolymerization)...
Tipo: Text
Palavras-chave: Interface eau–sédiment; Chambre benthique; Incubation in situ; Marge continentale; Méditérranée
nord-occidentale; Sediment-waterinterface; Benthic chamber; In situ incubations; Continental margin; NW Mediterranean.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43318/42936.pdf
Manual on effluent treatment in aquaculture : Science and Practice. Aquaetreat
Provedor de dados: 5
Autores: Acierno, R; Blancheton, Jean-paul; Bressani, G; Ceruti, Laetitia; Chadwick, D; Roque D'Orbcastel, Emmanuelle;
Claricoates, J; Donaldson, G; Donaldson, G.
No one can be involved in aquaculture for very long without becoming aware of the extensive array of legislation within which
the industry operates in Europe1. At the farm level, it may sometimes feel as if the legislation is a brake on development at a time
when aquaculture is regularly proclaimed as the fastestgrowing food sector in the world. Are aquaculture producers in Europe to
be disadvantaged in playing their part in the development of the industry, and from enjoying their share of the prizes? This would
be of no benefit, and seems unlikely as a policy goal. Why would policy and its organising legislative framework conspire to
disadvantage Europe in this regard? Yet at the operational level, the legislative net seems to tighten, and the associated...
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6496.pdf
Periodicity in the trace-metal content of estuarine sediments
Provedor de dados: 5
Autores: Ackroyd, Dr; Millward, Ge; Morris, Aw.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00109/22066/19708.pdf
Upstream migration and reproductive patterns of a population of allis shad in a small river (L'Aulne,
Brittany, France)
Provedor de dados: 5
Autores: Acolas, M; Veron, V; Jourdan, H; Begout, Marie-laure; Sabatie, M; Bagliniere, J.l.
The characteristics and activity of adult allis shad [Alosa alosa (L.)] were analysed during the last part of their upstream migration
in the L'Aulne, a small river in Brittany, and during reproduction on a unique spawning ground downstream of an insurmountable
dam. The age of the spawners ranged front three to seven years, females being larger and older than males. Population-level
migration and reproduction were studied by counting the number of migrating fish, by estimating the sex ratio, and by counting
the number of nocturnal spawning acts for three consecutive years starting in 2000. The influence of the environment, especially
water temperature and discharge, was highlighted: temperature during migration may supplant the influence of water flow,...
Tipo: Text
Palavras-chave: Small river; Reproduction; Biological features; Anadromous migration; Allis shad.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1214.pdf
Bases biologiques d'un modèle pour estimer la biomasse féconde de l'anguille européenne en fonction
des recrues fluviales et du contexte de croissance : approche comparative à l'échelle de petits bassins
versants
Provedor de dados: 5
Autores: Acou, Anthony.
Population dynamics of European eels Anguilla anguilla was investigated within a small dammed catchment of Britanny (the
Fremur) over a 8-years period (from 1996 to 2003). On this period, the migrant (recruitment and escapement) and sedentary
(stock) fractions were quantified and characterized (stage, length and age). The mortality rate observed was important (53.2%)
probably because of the high abundance (0.40 eels.m-2) and the habitatloss. Each year, the number of potentially emigrant eels,
based on an analysis of the sedentary population fraction, was predicted. The observed number was strongly dependent on
environmental conditions that were overruled by dam management. Finally, influence of growth site on production of both
number and quality of...
Tipo: Text
Palavras-chave: Anguilla spawning success obstructed rivers< BR> Modelling conservation biology migration population
dynamic Anguilla succès reproducteur hydrosystème anthropisation modélisation biologie de la conservation migration
dynamique de population.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/these-6512.pdf
Processing traits of European catfish (Silurus glanis Linnaeus, 1758) from outdoor flow-through and
indoor recycling aquaculture units
Provedor de dados: 5
Autores: Adamek, Z.; Grecu, I.; Metaxa, I.; Sabarich, L.; Blancheton, Jean-paul.
The quality of fish cultured using recycling units may differ from that of fish from outdoor farming units due to a range of
deviating environmental determinants. This applies not only to flesh quality but also to morphological (processing) traits. This
study evaluates processing yields of sibling fish cultured in two different farming units: (i) an outdoor pond aquaculture system
with a flow-through regime (24.6 ± 0.2°C), and (ii) indoor tanks using a recirculation aquaculture system (RAS; 26.0 ± 1.0°C).
Clear differences were observed in the most important processing traits, i.e. skinned trunk and fillet yields, which were both
significantly higher (P < 0.01) in RAS fish due to significantly smaller (P < 0.05) head weight in fish of the...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00272/38347/36674.pdf
Surface-Generated Mesoscale Eddies Transport Deep-Sea Products from Hydrothermal Vents
Provedor de dados: 5
Autores: Adams, Diane K.; Mcgillicuddy, Dennis J., Jr.; Zamudio, Luis; Thurnherr, Andreas M.; Liang, Xinfeng; Rouxel,
Olivier; German, Christopher R.; Mullineaux, Lauren S.
Atmospheric forcing, which is known to have a strong influence on surface ocean dynamics and production, is typically not
considered in studies of the deep sea. Our observations and models demonstrate an unexpected influence of surface-generated
mesoscale eddies in the transport of hydrothermal vent efflux and of vent larvae away from the northern East Pacific Rise.
Transport by these deep-reaching eddies provides a mechanism for spreading the hydrothermal chemical and heat flux into the
deep-ocean interior and for dispersing propagules hundreds of kilometers between isolated and ephemeral communities. Because
the eddies interacting with the East Pacific Rise are formed seasonally and are sensitive to phenomena such as El Nino, they have
the potential to...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00035/14629/11973.pdf
Comment une approche histologique couplée à une analyse quantitative peut-elle apporter des
informations sur le cycle de reproduction de la sole (Solea solea) femelle ?
Provedor de dados: 5
Autores: Adeline, B; Dubreil, E; Quinquis, Jerome; Elie, N; Kellner, K; Heude Berthelin, C.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00342/45348/44818.pdf
Genetic diversity, clonality and connectivity in the scleractinian coral Pocillopora damicornis: a
multi-scale analysis in an insular, fragmented reef system
Provedor de dados: 5
Autores: Adjeroud, Mehdi; Guerecheau, Aurelie; Vidal-dupiol, Jeremie; Flot, Jean-francois; Arnaud-haond, Sophie; Bonhomme,
Francois.
Clonality and genetic structure of the coral Pocillopora damicornis sensu lato were assessed using five microsatellites in 12
populations from four islands of the Society Archipelago (French Polynesia) sampled in June 2008. The 427 analysed specimens
fell into 132 multilocus genotypes (MLGs), suggesting that asexual reproduction plays an important role in the maintenance of
these populations. A haploweb analysis of ITS2 sequences of each MLG was consistent with all of them being conspecific.
Genetic differentiation was detected both between and within islands, but when a single sample per MLG was included in the
analyses, the populations turned out to be nearly panmictic. These observations provide further evidence of the marked variability
in reproductive...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28209/26518.pdf
Generation of a residual current by interaction between the coastal boundary-layer and the ekman
layer in a tidal motion
Provedor de dados: 5
Autores: Aelbrecht, D; Dhieres, Gc; Zhang, Xz.
Some experiments have been made with the large rotating tank at the Institut de Mecanique de Grenoble to reproduce a sinusoidal
flow along a vertical wall, over a flat bottom, with or without slope, in a homogeneous fluid. The objective of these experiments
was to simulate a tidal motion, restricted to its main harmonic component M2, parallel to a vertical coast; and to demonstrate a
particular mode of generation of residual circulation near the coast as a result of the interaction between friction, background
rotation of the system (Ekman pumping) and oscillatory motion (Stokes effects). Moreover, the stabilizing (or otherwise) effects
of the Earth's rotation on this shear flow may modify the rectification process. The configuration is in a good agreement...
Tipo: Text
Palavras-chave: TIDAL CURRENTS; BOUNDARY LAYER; EKMAN LAYER; RESIDUAL CURRENT.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00100/21139/18759.pdf
Synthèse du Colloque SHF « Energies Marines Renouvelables » ‑ EMR 2013 Brest, 9 et 10 octobre
2013
Provedor de dados: 5
Autores: Aelbrecht, Denis; Paillard, Michel.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00260/37084/35585.pdf
Studies of a full-scale mechanical prototype line for the ANTARES neutrino telescope and tests of a
prototype instrument for deep-sea acoustic measurements
Provedor de dados: 5
Autores: Ageron, M; Aguilar, J; Albert, A; Ameli, F; Anghinolfi, M; Anton, G; Anvar, S; Ardellier Desages, F; Aslanides, E;
Aubert, J; Auer, R; Barbarito, E; Basa, S; Battaglieri, M; Bazzotti, M; Becherini, Y; Bethoux, N; Beltramelli, J; Bertin, V; Bigi,
A; Billault, M; Blaes, R; De Botton, N; Bouwhuis, M; Bruijn, R; Brunner, J; Burgio, G; Busto, J; Cafagna, F; Caillat, L; Calzas,
A; Capone, A; Caponetto, L; Carmona, E; Carr, J; Castel, D; Castorina, E; Cavasinni, V; Ceechini, S; Ceres, A; Charvis, P;
Chauchot, Pierre; Chiarusi, T; Circella, M; Coail, Jean-yves; Colnard, C; Compere, Chantal; Coniglione, R; Cottini, N; Coyle, P;
Cuneo, S; Cussatlegras, A; Damy, Gilbert; Van Dantzig, R; Debonis, G; De Marzo, C; De Vita, R; Dekeyser, I; Delagnes, E;
Denans, D; Deschamps, Anne; Dessa, J; Destelle, J; Dinkespieler, B; Distefano, C; Donzaud, C; Drogou, Jean-francois; Druillole,
F; Durand, D; Ernenwein, J; Escoffier, S; Falchini, E; Favard, S; Fehr, F; Feinstein, F; Florello, C; Flaminio, V; Fratini, K; Fuda,
J; Galeotti, S; Gallone, J; Giacomelli, G; Girard, N; Gojak, C; Goret, P; Graf, K; Guilloux, F; Hallewell, G; Harakeh, M;
Hartmann, B; Heijboer, A; Heine, E; Hello, Y; Hernandez Rey, J; Hossl, J; Hoffman, C; Hogenbirk, J; Hubbard, J; Jaquet, M;
Jaspers, M; De Jong, M; Jouvenot, F; Kalantar Nayestanaki, N; Kappes, A; Karg, T; Katz, U; Keller, P; Kneib, J; Kok, E; Kok, H;
Kooijman, P; Kopper, C; Kouchner, A; Kretschmer, W; Kruijer, A; Kuch, S; Lagier, P; Lahmann, R; Lamanna, G; Lamare, P;
Lambard, G; Languillat, J; Laschinsky, H; Lavalle, J; Le Guen, Yvon; Le Provost, H; Van Suu, A; Lefevre, D; Legou, T;
Lelaizant, G; Lim, G; Lo Presti, D; Loaec, Gerard; Loehner, H; Loucatos, S; Louis, F; Lucarelli, F; Lyashuk, V; Mangano, S;
Marcelin, M; Margiotta, A; Masullo, R; Mazeas, Florence; Mazure, A; Megna, R; Melissas, M; Migneco, E; Mongelli, M;
Montaruli, T; Morganti, M; Moscoso, L; Motz, H; Musumeci, M; Naumann, C; Naumann Godo, M; Niess, V; Noble, A; Olivetto,
C; Ostasch, R; Palanque Delabrouille, N; Payre, P; Peek, H; Perez, Amparo; Petta, C; Piattelli, P; Pillet, R; Pineau, J; Poinsignon,
J; Popa, V; Pradier, T; Racca, C; Randazzo, N; Van Randwijk, J; Real, D; Regnier, M; Van Rens, B; Rethore, F; Rewiersma, P;
Riccobene, G; Rigaud, Vincent; Ripani, M; Roca, V; Roda, C; Rolin, Jean-francois; Rostovtsev, A; Roux, Jean; Ruppi, M; Russo,
G; Rusydi, G; Salesa, F; Salomon, K; Sapienza, P; Schmitt, F; Schuller, J; Shanidze, R; Sokalski, I; Spona, T; Spurio, M; Van Der
Steenhoven, G; Stolarczyk, T; Streeb, K; Sulak, L; Taiuti, M; Tamburini, C; Tao, C; Tasca, L; Terreni, G; Urbano, F; Valdy,
Pierre; Valente, V; Vallage, B; Vaudaine, G; Venekamp, G; Verlaat, B; Vernin, P; Van Wijk, R; Wijnker, G; Wobbe, G; De Wolf,
E; Yao, A; Zaborov, D; Zaccone, H; Zornoza, J; Zuniga, J.
full-scale mechanical prototype line was deployed to a depth of 2500 m to test the leak tightness of the electronics containers and
the pressure-resistant properties of an electromechanical cable under evaluation for use in the ANTARES deep-sea neutrino
telescope. During a month-long immersion study, line parameter data were taken using miniature autonomous data loggers and
shore-based optical time domain reflectometry. Details of the mechanical prototype line, the electromechanical cable and data
acquisition are presented. Data taken during the immersion study revealed deficiencies in the pressure resistance of the
electromechanical cable terminations at the entry points to the electronics containers. The improvements to the termination, which
have been...
Tipo: Text
Palavras-chave: Sea deployment; Electromechanical cable; Optical time domain reflectometry; Leak detection; Underwater
neutrino telescope; ANTARES.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3519.pdf
Bacterial Dynamics in a Microphytobenthic Biofilm: a Tidal Mesocosm Approach
Provedor de dados: 5
Autores: Agogue, Helene; Mallet, Clarisse; Orvain, Francis; De Crignis, Margot; Mornet, Francoise; Dupuy, Christine.
In intertidal mudflats, during low tide exposure, microphytobenthos (MPB) migrate vertically through the surface sediment and
form, with the heterotrophic bacteria, a transient biofilm. Inside this biofilm, multiple interactions exist between MPB and
bacteria. These micro-organisms secrete a wide range of extracellular polymeric substances (EPS), which are major components
of the biofilm matrix. In this study, we used a tidal mesocosm experiment in order to decipher the interactions of the
MPB-EPS-bacteria complex within the biofilm. We tried to determine if the EPS could control bacterial activities and/or
production and/or richness according to the age of the biofilm and to the immersion/emersion period. The dynamics of biomasses
of MPB and prokaryotes,...
Tipo: Text
Palavras-chave: Muddy sediment; Microphytobenthos; Bacteria; Extracellular polymeric substances; Interactions; Mesocosm.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00181/29271/27682.pdf
Temporal and spatial changes of seagrass meadows in a Mediterranean coastal lagoon
Provedor de dados: 5
Autores: Agostini, S; Marchand, B; Pergent, G.
Aerial photographs and in situ data of the Urbinu Lagoon (one of the largest and deepest ponds in Corsica, Mediterranean Sea)
permit the establishment of a cartography of its aquatic benthic assemblages and types of sea-beds. It was possible to distinguish
in the photographs submerged structures such as: sand, pebbles, mud and seagrass meadows. Seagrass beds were the predominant
vegetation type in this lagoon (comprising 14-29% of the total area depending on the year studied), and their distribution was
incorporated into a geographical information database, and then compared with historical data. Temporal and spatial change in
seagrass meadows was assessed between 1990 and 1997. Change in total extent was evaluated through a map to map comparison
of data...
Tipo: Text
Palavras-chave: Phanérogames; Lagune méditerranéenne; Traitement d’image; Évolution d’écosystème; Seagrasses;
Mediterranean lagoon; Image processing; Change detection.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43296/43032.pdf
Modélisation du régime thermique de la Manche
Provedor de dados: 5
Autores: Agoumi, A; Enderle, Mj; Gras, Ra.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00120/23126/20973.pdf
Sécurité alimentaire en Méditerranée à l'horizon 2030 : aspects qualitatifs et quantitatifs - Etude
prospective du Comité Scientifique et Technique d'Agropolis International
Provedor de dados: 5
Autores: Agropolis International.
The foresight study SAMAQQ, food security across the Mediterranean: a quantitative and qualitative forecast to 2030, is based on
4 scenarios identified in the CIHEAM report Mediterra 2008, the future of Agricultural and Food in Mediterranean Countries.
These scenarios describe possible futures of the region towards 2030. In the SAMAQQ study, two different evolutions of climate
change (fast and strong, moderate and slow) are considered. The main objective of the study aims at providing recommendations
in terms of proposals for research, training and partnership for improving food security in the Mediterranean. The study focuses
on ten fields: water, ecosystem and biodiversity, genetic resources and breeding, production systems, animal and plant
pathologies,...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00187/29860/28311.pdf
The effects of fish hydrolysate (CPSP) level on Octopus maya (Voss and Solis) diet: Digestive enzyme
activity, blood metabolites, and energy balance
Provedor de dados: 5
Autores: Aguila, J; Cuzon, Gerard; Pascual, C; Domingues, P; Gaxiola, G; Sanchez, A; Maldonado, T; Rosas, C.
As has been demonstrated in previous studies, Octopus maya can be fed on artificial diets. In the present study six different diets
were assayed. Five diets were designed to test the effect of percentage of inclusion of fish protein concentrate (CPSP: 0, 5, 10, 15,
and 20%) and were offered to octopuses as a specifically designed artificial diet. The sixth diet consisted of frozen crab
(Callinectes spp) and was used as control diet. Blood metabolites and energy budget of octopuses were evaluated to determine
how CPSP levels modulate the digestive capacity and allow retaining energy for growth. Wild animals (316.4 +/- 9.8 g) were used
in the study. Results showed that CPSP produced a positive specific growth rate (SGR, % day(-1)) with high value in...
Tipo: Text
Palavras-chave: Energy balance; Blood metabolites; Nutrition; Octopus maya.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3638.pdf
Probiotic effect of FLOC on Vibrios in the pacific white shrimp Litopenaeus Vannamei
Provedor de dados: 5
Autores: Aguilera-rivera, Diana; Prieto-davo, Alejandra; Escalante, Karla; Chavez, Cristina; Cuzon, Gerard; Gaxiola, Gabriela.
The advantages of FLOC over clear water (CW) in rearing juvenile L. vannamei and its effects on Vibrio communities were
evaluated. Survival rate in FLOC and clear water were recorded and a probiotic was tested under both conditions. Daily growth
rate (DGR) was higher in FLOC (p < 0.05) than in CW. Survival in each system increased significantly when a probiotic was
included in the diet (p < 0.05). The Vibrionaceae community from the hepatopancreas (HP) and the culture medium did not
differ between the two culture media. Nevertheless, a novel group of Vibrio strains was found to be unique to FLOC. No high
level of lesions was observed in shrimp tissues from the FLOC + probiotic treatment; it suggests that the probiotic contributed to
homeostasis and...
Tipo: Text
Palavras-chave: FLOC; Probiotic; L. vannamei; Disease; Vibrio.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00173/28379/26694.pdf
Pathogenicity of Vibrio penaeicida or white shrimp Litopenaeus vannamei: a cysteine protease-like
exotoxin as a virulence factor
Provedor de dados: 5
Autores: Aguirre Guzman, G; Ascencio, F; Saulnier, Denis.
The pathogenicity of Vibrio penaeicida Strains KH-1 and AM101, their culture-free supernatant (CFS), and their protein fraction
obtained by 40% of ammonium sulfate precipitation (PFs40) were assessed in experimental challenges against juvenile
Litopenaeus vannamei. Live Vibrio cells, CFS, and PFs40 from the AM101 strain produced a significantly higher mortality (p
< 0.05) compared to the KH-1 strain. Toxicity and median lethal doses (LD50) of Fast Protein Liquid Chromatography (FPLC)
products were evaluated on L. vannamei. The first FPLC fraction sample (A) from PFs40 of the AM101 strain displayed LD50
values of 1.68 and 5.61 mu g protein ind.(-1), respectively. The second FPLC process from Fraction A showed a peak (A1) also
with toxic effects to...
Tipo: Text
Palavras-chave: Pathogenicity; Exotoxin; Shrimp; Litopenaeus vannamei; Cysteine protease; Vibrio penaeicida.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3618.pdf
Proteinaceous exotoxins of shrimp-pathogenic isolates of Vibrio penaeicida and Vibrio
nigripulchritudo
Provedor de dados: 5
Autores: Aguirre-guzman, Gabriel; Labreuche, Yannick; Ansquer, Dominique; Espiau, Benoit; Levy, Peva; Ascencio, Felipe;
Saulnier, Denis.
The pathogenicity of two V. penaeicida strains, AM101 and KH-1, with different geographic origin, and V. nigripulchritudo strain
AM102, were investigated in juvenile blue shrimp species Litopenaeus stylirostris. Alive bacteria and protein fractions (PFs)
obtained from cell-free supernatants (CFS) were used in experimental challenges. Strains AM102, AM101, and KH-1 produced
respectively 60, 54 and 12% mortality at 96h after infection using 104 cfu mL-1 of bacterial suspension. Exocellular toxin-like
factors were evidenced in CFS from the New Caledonian strains (AM102 and AM101) but not the Japanese strain (KH-1). At 48h
post injection of each CFS, mortality rates were respectively 96,98 and 5% when these strains were cultivated at 20°C, whereas
only O,16...
Tipo: Text
Palavras-chave: Pathogenicity; Exotoxin; Shrimp; Litopenaeus stylirostris; Vibrio nigripulchritudo; Vibrio penaeicida.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-2807.pdf
Phytoplankton chlorophyll a distribution and water column stability in the central Atlantic Ocean
Provedor de dados: 5
Autores: Agusti, S; Duarte, Cm.
The relationship between the vertical distribution of phytoplankton chlorophyll a and the physical structure of the upper central
Atlantic Ocean was investigated based on results from a cruise across the tropical Atlantic (27 degrees N to 36 degrees S). The
thermocline was very sharp and shallow in the northern part of the transect, off the coast of Mauritania and Senegal, and deepened
progressively to reach > 150 m deep between 20 degrees S and 30 degrees S. There was a deep chl a maximum associated with
the thermocline throughout the transect, reaching chl a concentrations up to 50 fold greater than those in surface waters. The chl a
concentration was greatest off the NW African coast and declined towards the south, parallel to a progressive deepening...
Tipo: Text
Palavras-chave: Chlorophylle; Phytoplancton; Stabilité verticale; Océan Atlantique central; Chlorophyll; Phytoplankton; Water
column stability; Central Atlantic Ocean.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43620/43311.pdf
Equilibrium temperature as a parameter for estimating the net heat-flux at the air-sea interface in the
central red-sea
Provedor de dados: 5
Autores: Ahmad, F; Sultan, Sar.
The net rate of heat exchange at the water surface in the central Red Sea is calculated with reference to the equilibrium
temperature and the thermal exchange coefficient, both of which depend on meteorological variables. The monthly means of this
exchange agree well with the values computed on the basis of heat balance processes which include sensible, evaporative and
radiative heat fluxes.
Tipo: Text
Palavras-chave: TEMPERATURE; HEAT FLUX; AIR-SEA INTERFACE; RED SEA.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00099/21027/18653.pdf
Surface heat fluxes and their comparison with the oceanic heat-flow in the red-sea
Provedor de dados: 5
Autores: Ahmad, F; Sultan, Sar.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00106/21751/19324.pdf
Residual transport velocities during winter, within the atlantis-ii deep area of the central red-sea
Provedor de dados: 5
Autores: Ahmad, F; Sultan, Sar; Moammar, Mo.
The Atlantis II Deep is located at about 21.5 degrees N within a deep trench which divides the Red Sea along the mid-axis. Data
from the Atlantis II mooring, maintained during January-February 1978, provide valuable information about residual current
distribution over the whole water column. The residual currents have speeds of 20 cm/s at the level of surface current meter,
decreasing to 1.5 cm/s at about 250 m depth. The dominant direction over this depth level is southeast in January and changes to
northeast in February. From 250 m down to the bottom the dominant direction is north-northwest and the residual speeds range
between 1.5 and 3.0 cm/s at different depth levels. The weighted depth-mean residual current speed from surface to 250 m is
about 7.7...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00097/20870/18488.pdf
Stratégies de pêche et rentabilité des unités de pêche artisanale française
Provedor de dados: 5
Autores: Ahnani, M; Allard, M. O.; Couchot, M. D.; Garriou, N; Neme, I.
Le thème de notre groupe de travail concerne l'activité des flottilles de pêche française opérant dans la Mer du Nord et le Golfe de
Gascogne. L'objectif est de mettre en évidence des stratégies de pêche, selon les flottilles, les équipements, les lieux de pêche et le
type des captures. Il faut savoir que la Mer du Nord représente 15 % du tonnage total français au débarquement et le Golfe de
Gascogne 20 % du tonnage total français. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-4174.pdf
Modèles autorégressifs à changements de régimes markoviens. Applications aux séries tempo-relles de
vent
Provedor de dados: 5
Autores: Ailliot, Pierre.
In this thesis, several original Markov switching autoregressive model are proposed for wind time series. The first chapter is
devoted to a theoretical study of these models. We focus mainly on the problems of the numerical calculation of the maximum
likelihood estimators, of the asymp-totic behavior of these estimators and finally of model selection and validation. In the second
chapter, we propose various Markov switching autoregressive model to describe the evolution of the wind in a fixed point, and
then in the third chapter its space-time evolution. For each suggested model, we check the physical interpretability of the various
parameters, and their capacity to simulate realistic artificial sequences. The obtained results are compared to those...
Tipo: Text
Palavras-chave: Space time model; Wind time series; Asymptotic properties; Maximum likelihood estimator; Stability; Markov
Switching autoregressive model; Modèle spatio temporel; Séries temporelles de vent; Propriétés asymptotiques; Estimateurs du
maximum de vraisemblance; Stabilité; Modèles autorégressifs à changements de régimes markoviens.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/these-325.pdf
Dynamical partitioning of directional ocean wave spectra
Provedor de dados: 5
Autores: Ailliot, Pierre; Maisondieu, Christophe; Monbet, Valerie.
Directional wave spectra generally exhibit several peaks due to the coexistence of wind sea generated by local wind conditions
and swells originating from distant weather systems. This paper proposes a new algorithm for partitioning such spectra and
retrieving the various systems which compose a complex sea-state. It is based on a sequential Monte-Carlo algorithm which
allows to follow the time evolution of the various systems. The proposed methodology is validated on both synthetic and real
spectra and the results are compared with a method commonly used in the literature.
Tipo: Text
Palavras-chave: Partitioning algorithm; Directional wave spectrum; Sequential Monte Carlo algorithm.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00134/24563/22688.pdf
An autoregressive model with time-varying coefficients for wind fields
Provedor de dados: 5
Autores: Ailliot, Pierre; Monbet, Valérie; Prevosto, Marc.
In this article, an original Markov-switching autoregressive model is proposed to describe the space-time evolution of wind fields.
At first, a non-observable process is introduced in order to model the motion of the meteorological structures. Then, conditionally
to this process, the evolution of the wind fields is described using autoregressive models with time-varying coefficients. The
proposed model is calibrated and validated on data ill the North Atlantic.
Tipo: Text
Palavras-chave: Markov switching autoregressive model; Wind fields; Space time model.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1225.pdf
Evolutionary history of the seagrass genus Posidonia
Provedor de dados: 5
Autores: Aires, Tania; Marba, Nuria; Cunha, Regina L.; Kendrick, Gary A.; Walker, Diana I.; Serrao, Ester A.; Duarte, Carlos
M.; Arnaud-haond, Sophie.
Seagrasses are the structural species of one of the most important coastal ecosystems worldwide and support high levels of
biodiversity and biomass production. Posidonia is one of the most ancient seagrass genera and displays a contrasting disjunct
biogeographic pattern. It contains one single species in the Northern Hemisphere, P. oceanica, which is endemic to the
Mediterranean Sea, and has up to 8 recognized taxa in the Southern Hemisphere, which in Australia are divided into 2 complexes,
P. ostenfeldii and P. australis. A phylogeny based on a nuclear marker (rRNA-ITS) revealed an ancient split between the northern
(i.e. Mediterranean) and southern (i.e. Australian) taxa, followed by a separation of the 2 recognized Australian complexes.
However, the...
Tipo: Text
Palavras-chave: Posidonia; Phylogeny; Low evolutionary rates; Ancient diversification.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00027/13798/10937.pdf
Selective elimination of chloroplastidial DNA for metagenomics of bacteria associated with the green
alga Caulerpa Taxifolia (bryopsidophyceae)
Provedor de dados: 5
Autores: Aires, Tania; Marba, Nuria; Serrao, Ester A.; Duarte, Carlos M.; Arnaud-haond, Sophie.
Molecular analyses of bacteria associated with photosynthetic organisms are often confounded by coamplification of the
chloroplastidial 16S rDNA with the targeted bacterial 16S rDNA. This major problem has hampered progress in the
characterization of bacterial communities associated to photosynthetic organisms and has limited the full realization of the
potential offered by the last generation of metagenomics approaches. A simple and inexpensive method is presented, based on
ethanol and bleach treatments prior to extraction, to efficiently discard a great part of chloroplastidial DNA without affecting the
characterization of bacterial communities through pyrosequencing. Its effectiveness for the description of bacterial lineages
associated to the green...
Tipo: Text
Palavras-chave: 16S; Chloroplasts; Elimination; Green algae; Metagenomics.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00076/18739/16464.pdf
Hologenome theory supported by cooccurrence networks of species-specific bacterial communities in
siphonous algae (Caulerpa)
Provedor de dados: 5
Autores: Aires, Tania; Moalic, Yann; Serrao, Ester; Arnaud-haond, Sophie.
The siphonous algae of the Caulerpa genus harbor internal microbial communities hypothesized to play important roles in
development, defense and metabolic activities of the host. Here, we characterize the endophytic bacterial community of four
Caulerpa taxa in the Mediterranean Sea, through 16S rRNA amplicon sequencing. Results reveal a striking alpha diversity of the
bacterial communities, similar to levels found in sponges and coral holobionts. These comprise (1) a very small core community
shared across all hosts (< 1% of the total community), (2) a variable portion (ca. 25%) shared by some Caulerpa taxa but not by
all, which might represent environmentally acquired bacteria and (3) a large (> 70%) species-specific fraction of the
community,...
Tipo: Text
Palavras-chave: Endophytic bacteria; Bacterial community; Cooccurrence network; Modularity; Coevolution.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00277/38800/37699.pdf
Invasion Is a Community Affair: Clandestine Followers in the Bacterial Community Associated to
Green Algae, Caulerpa racemosa, Track the Invasion Source
Provedor de dados: 5
Autores: Aires, Tania; Serrao, Ester A.; Kendrick, Gary; Duarte, Carlos M.; Arnaud-haond, Sophie.
Biological invasions rank amongst the most deleterious components of global change inducing alterations from genes to
ecosystems. The genetic characteristics of introduced pools of individuals greatly influence the capacity of introduced species to
establish and expand. The recently demonstrated heritability of microbial communities associated to individual genotypes of
primary producers makes them a potentially essential element of the evolution and adaptability of their hosts. Here, we
characterized the bacterial communities associated to native and non-native populations of the marine green macroalga Caulerpa
racemosa through pyrosequencing, and explored their potential role on the strikingly invasive trajectory of their host in the
Mediterranean. The...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00157/26791/24886.pdf
Étude de la formation d'adduits et de 8-oxodguo à l'ADN de moule, Mytilus sp: perspectives
d'utilisation dans le milieu marin en tant que biomarqueurs de génotoxicité des hydrocarbures
aromatiques polycycliques
Provedor de dados: 5
Autores: Akcha, Farida.
In the aim to develop biomarkers of genotoxicity for the biomonitoring of the marine environment,the formation of DNA adducts
and oxidized DNA bases was studied for the sentinel organism, Mytilus sp, following exposure to B[a]P via the trophic supply.
DNA adducts and 8-oxo-7,8-dihydro-2'-désoxyguanosine (8-oxodGuo) were respectively measured by 32P post-labeling
technique and high performance liquid chromatography coupled to electrochemical detection. The developped model of exposure
was validated for the realisation of toxicological studies in Mytilus sp. The bioavailability of B[a]P for the exposed organisms and
its biotransformation resulted in variations in most of the measured enzymatic biomarkers of exposure. Such an exposure allowed
the expression...
Tipo: Text
Palavras-chave: Moule; B[a]P; Adduits; 8-oxodGuo; Biomarqueurs; Mussel; B[a]P; Adducts; 8-oxodGuo; Biomarkers.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00076/18770/16349.pdf
Comet assay in phytoplankton as biomarker of genotoxic effects of environmental pollution
Provedor de dados: 5
Autores: Akcha, Farida; Arzul, Genevieve; Rousseau, Sabrina; Bardouil, Michele.
The alkaline comet assay was tested on different microalgae: the clinofiagellates, Karenia mikimotoi and Alexandrium minuturn,
and the diatom, Chaetoceros gracilis. The microalgae were exposed during their exponential growth to the model direct
genotoxicant, hydrogen peroxide (1 h, 5 and 100 pM H2O2). Following H2O2 exposure, the comet assay was validated only for
K. mikimotoi for which genotoxicity was observed from the lowest tested concentration of 5 pM with a concentration-dependent
effect. C. gracilis was too small in size (4 mu m) to be correctly analysed. For A. minuturn, our lysis buffer was not strong enough
to digest the cellulosic thecal plates. For K. mikimotoi, the comet assay was thus applied for the study of the genotoxic effects of...
Tipo: Text
Palavras-chave: Comet assay; Genotoxicity; Pesticides; Phytoplankton.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4504.pdf
Induction and elimination of bulky benzo[a]pyrene-related DNA adducts and 8-oxodGuo in mussels
Mytilus galloprovincialis exposed in vivo to B[a]P-contaminated feed
Provedor de dados: 5
Autores: Akcha, Farida; Burgeot, Thierry; Budzinski, H; Pfohla Leszkowicz, A; Narbonne, J.
With the aim of developing biomarkers of polycyclic aromatic hydrocarbon (PAH) genotoxicity for biomonitoring of the marine
environment, the formation of DNA adducts and oxidative DNA damage was studied in the sentinel organism Mytilus. Mussels
M. galloprovincialis were exposed for 21 d to different doses of benzo[a]pyrene (B[a]P) (50 and 100 mg B[a]P kg(-1) dry wt
mussel d(-1)) via trophic intake. The kinetics of B[a]P concentration in whole mussel tissues was determined in both groups, and a
dose-response study was conducted for both gill B[a]P-related DNA adducts and 8-oxo-7, 8-dihydro-2'-deoxyguanosine
(8-oxodGuo) formation in gill and digestive gland DNA. Exposure was followed by a 10 d depuration period to study mussel
recovery. Although B[a]P was...
Tipo: Text
Palavras-chave: DNA repair; 8 oxodGuo; DNA adducts; Mussel; BaP.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-813.pdf
Genotoxicity of diuron and glyphosate in oyster spermatozoa and embryos
Provedor de dados: 5
Autores: Akcha, Farida; Spagnol, Charlene; Rouxel, Julien.
We investigated the effects of genotoxicant exposure in gametes and embryos to find a possible link between genotoxicity and
reproduction/developmental impairment, and explore the impact of chemical genotoxicity on population dynamics. Our study
focused on the genotoxic effects of two herbicides on oyster gametes and embryos: glyphosate (both as an active substance and in
the Roundup formulation) and diuron. France is Europe's leading consumer of agrochemical substances and as such,
contamination of France's coastal waters by pesticides is a major concern. Glyphosate and diuron are among the most frequently
detected herbicides in oyster production areas; as oyster is a specie with external reproduction, its gametes and embryos are in
direct contact with...
Tipo: Text
Palavras-chave: Genotoxicity; Embryotoxicity; Oyster; Gametes; Pesticides; Diuron; Glyphosate.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00070/18128/15783.pdf
A modeling study of the processes of surface salinity seasonal cycle in the Bay of Bengal
Provedor de dados: 5
Autores: Akhil, V. P.; Durand, Fabien; Lengaigne, Matthieu; Vialard, Jerome; Keerthi, M. G.; Gopalakrishna, V. V.; Deltel,
Charles; Papa, Fabrice; De Boyer Montegut, Clement.
In response to the Indian Monsoon freshwater forcing, the Bay of Bengal exhibits a very strong seasonal cycle in sea surface
salinity (SSS), especially near the mouths of the Ganges-Brahmaputra and along the east coast of India. In this paper, we use an
eddy-permitting (∼25 km resolution) regional ocean general circulation model simulation to quantify the processes responsible for
this SSS seasonal cycle. Despite the absence of relaxation toward observations, the model reproduces the main features of the
observed SSS seasonal cycle, with freshest water in the northeastern Bay, particularly during and after the monsoon. The model
also displays an intense and shallow freshening signal in a narrow (∼100 km wide) strip that hugs the east coast of India, from...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30819/29189.pdf
Approches culturales et moléculaires des assemblages microbiens associés aux polychètes
hydrothermaux de la famille Alvinellidae
Provedor de dados: 5
Autores: Alain, Karine.
Cultural and molecular approaches were used to analyse the microbial assemblages associated to the deep-sea hydrothermal vent
polychaete worms of the family Alvinellidae. In a first part of the work, the populations associated to three alvinellid species from
the Juan de Fuca Ridge (Paralvinella palmiformis, Paralvinella pandorae and Paralvinella sulfincola) were identified by
phylogenetic analyses. A wide microbial diversity was detected, like a great number of new sequences or of sequences belonging
to species previously unidentified at deep-sea hydrothermal vents. All the libraries were found to be dominated by sequences
affiliated to the epsilon-Proteobacteria. In other respects, fermentative micro-organisms belonging to the Thermococcales, the...
Tipo: Text
Palavras-chave: Paralvinella; Alvinella; 16S rRNA; Thermophile; Hydrothermal vent; Paralvinella; Alvinella; ARNr 16S;
Thermophile; Source hydrothermale.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2005/these-332.pdf
DNA extractions from deep subseafloor sediments: Novel cryogenic-mill-based procedure and
comparison to existing protocols
Provedor de dados: 5
Autores: Alain, Karine; Callac, Nolwenn; Ciobanu, Maria Cristina; Reynaud, Yann; Duthoit, Frederique; Jebbar, Mohamed.
Extracting DNA from deep subsurface sediments is challenging given the complexity of sediments types, low bio-masses, resting
structures (spores, cysts) frequently encountered in deep sediments, and the potential presence of enzymatic inhibitors. Promising
results for cell lysis efficiency were recently obtained by use of a cryogenic mill (Lipp et al., 2008). These findings encouraged us
to devise a DNA extraction protocol using this tool. Thirteen procedures involving a combination of grinding in liquid nitrogen
(for various durations and beating rates) with different chemical solutions (phenol, chloroform, SDS, sarkosyl, proteinase, GTC),
or with use of DNA recovery kits (MagExtractor (R)) were compared. Effective DNA extraction was evaluated in terms of...
Tipo: Text
Palavras-chave: Sediment; DNA extraction; Deep subsurface biosphere.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00056/16691/14364.pdf
Nautilia abyssi sp nov., a thermophilic, chemolithoautotrophic, sulfur-reducing bacterium isolated
from an East Pacific Rise hydrothermal vent
Provedor de dados: 5
Autores: Alain, Karine; Callac, Nolwenn; Guegan, Marianne; Lesongeur, Francoise; Crassous, Philippe; Cambon-bonavita,
Marie-anne; Querellou, Joel; Prieur, Daniel.
A novel strictly anaerobic, thermophilic, sulfur-reducing bacterium, designated PH1209(T), was isolated from an East Pacific Rise
hydrothermal vent (13 degrees N) sample and studied using a polyphasic taxonomic approach. Cells were Gram-negative, motile
rods (approx. 1.60x0.40 mu m) with a single polar flagellum. Strain PH1209(T) grew at temperatures between 33 and 65 degrees
C (optimum 60 degrees C), from pH 5.0 to 8.0 (optimum 6.0-6.5), and between 2 and 4% (w/v) NaCl (optimum 3%). Cells grew
chemolithoautotrophically with H-2 as an energy source, So as an electron acceptor and CO2 as a carbon source. Strain
PH1209(T) was also able to use peptone and yeast extract as carbon sources. The G+C content of the genomic DNA was 35
mol%. Phylogenetic: analyses...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6585.pdf
Anaerobic utilization of toluene by marine alpha- and gammaproteobacteria reducing nitrate
Provedor de dados: 5
Autores: Alain, Karine; Harder, Jens; Widdel, Friedrich; Zengler, Karsten.
Aromatic hydrocarbons are among the main constituents of crude oil and represent a major fraction of biogenic hydrocarbons.
Anthropogenic influences as well as biological production lead to exposure and accumulation of these toxic chemicals in the water
column and sediment of marine environments. The ability to degrade these compounds in situ has been demonstrated for oxygenand sulphate-respiring marine micro-organisms. However, if and to what extent nitrate-reducing bacteria contribute to the
degradation of hydrocarbons in the marine environment and if these organisms are similar to their well-studied freshwater
counterparts has not been investigated thoroughly. Here we determine the potential of marine prokaryotes from different
sediments of the...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00120/23114/21171.pdf
Phylogenetic characterization of the bacterial assemblage associated with mucous. secretions of the
hydrothermal vent polychaete Paralvinella palmiformis
Provedor de dados: 5
Autores: Alain, Karine; Olagnon, Michel; Desbruyeres, Daniel; Page, Antoine; Barbier, Georges; Juniper, Kim; Querellou, Joel;
Cambon-bonavita, Marie-anne.
As part of an ongoing examination of microbial diversity associated with hydrothermal vent polychaetes of the family
Alvinellidae, we undertook a culture-independent molecular analysis of the bacterial assemblage associated with mucous
secretions of the Northeastern Pacific vent polychaete Paralvinella palmiformis. Using a molecular 16S rDNA-based phylogenetic
approach, clone libraries were constructed from two samples collected from active sulfide edifices in two hydrothermal vent
fields. In both cases, clone libraries were largely dominated by epsilon-Proteobacteria. Phylotypes belonging to the
Cytophaga-Flavobacteria and to the Verrucomicrobia were also largely represented within the libraries. The remaining sequences
were related to the taxonomic...
Tipo: Text
Palavras-chave: Proteobacteria; 16S rRNA; Microbial diversity; Phylogeny; Hydrothermal vent; Paralvinella palmiformis.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-661.pdf
Caminicella sporogenes gen. nov., sp nov., a novel thermophilic spore-forming bacterium isolated
from an East-Pacific Rise hydrothermal vent
Provedor de dados: 5
Autores: Alain, Karine; Pignet, Patricia; Zbinden, M; Quillevere, M; Duchiron, F; Donval, Jean-pierre; Lesongeur, Francoise;
Raguenes, Gerard; Crassous, Philippe; Querellou, Joel; Cambon-bonavita, Marie-anne.
A novel thermophilic, anaerobic, strictly chemoorganoheterotrophic bacterium, designated as AM1114(T), was isolated from a
deep-sea hydrothermal vent sample from the East-Pacific Rise (EPR 13degrees N). The cells were long (3-10 mum) rods, motile
with peritrichous flagella, and exhibited a Gram-negative cell wall ultrastructure. In the late stationary phase of growth, cells
formed an ovoid, refractile, terminal endospore. They grew at 45-65 degreesC inclusive (optimum 55-60 degreesC; doubling time
approx. 45 min), at pH 4.5-8.0 inclusive (optimum pH 7.5-8.0) and at sea salt concentrations of 20-60 g l(-1) inclusive (optimum
25-30 g l(-1)). Strain AM1114(T) was an obligately heterotrophic bacterium able to ferment a mixture of 20 amino acids,
complex...
Tipo: Text
Palavras-chave: Caminicella sporogenes; Clostridiales; Thermophile; Deep sea hydrothermal vent.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-528.pdf
Cultivating the uncultured: limits, advances and future challenges
Provedor de dados: 5
Autores: Alain, Karine; Querellou, Joel.
Since the invention of the Petri dish, there have been continuous efforts to improve efficiency in microbial cultivation. These
efforts were devoted to the attainment for diverse growth conditions, simulation of in situ conditions and achievement of
high-throughput rates. As a result, prokaryotes catalysing novel redox reactions as well as representatives of abundant, but not-yet
cultured taxa, were isolated. Significant insights into microbial physiology have been made by studying the small number of
prokaryotes already cultured. However, despite these numerous breakthroughs, microbial cultivation is still a low-throughput
process. The main hindrance to cultivation is likely due to the prevailing lack of knowledge on targeted species. In this review,
we...
Tipo: Text
Palavras-chave: High throughput cultivation; Cell cell communication; Microbial community; Metabolism; Isolation; Culture.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6820.pdf
Desulfurobacterium crinifex sp.nov., a novel thermophilic, pinkish-streamer forming,
chemolithoautotrophic bacterium isolated from a Juan de Fuca Ridge hydrothermal vent and
amendment of the genus Desulfurobacterium
Provedor de dados: 5
Autores: Alain, Karine; Rolland, Sophie; Crassous, Philippe; Lesongeur, Francoise; Zbinden, Magali; Le Gall, Christian;
Godfroy, Anne; Page, Antoine; Juniper, S Kim; Cambon-bonavita, Marie-anne; Duchiron, Francis; Querellou, Joel.
A novel thermophilic, chemolithoautotrophic T bacterium, designated as NE1206(T), was isolated from a Juan de Fuca Ridge
hydrothermal vent sample (tubes of the annelid polychaete Paralvinella sulfincola attached to small pieces of hydrothermal
chimney). The cells were rod-shaped (1.2-3.5x0.4-0.7 mum), occurring as single motile rods or forming macroscopic aggregates
visible as pinkish to brownish streamers. The new isolate was anaerobic. It grew between 50 and 70 degreesC (optimum 60-65
degreesC doubling time approximately 1 h 15 min at 60 degreesC), between pH 5.0 and 7.5 (optimum pH around 6.0-6.5) and at
sea salts concentrations between 20 and 40 g l(-1) (optimum 30 g l(-1)). Cells grew chemolithoautotrophically in an H-2/CO2
atmosphere (80/20, v/v; 200...
Tipo: Text
Palavras-chave: Thermophile; Nitrate reducing; Lithotroph; Desulfurobacterium crinifex; Deep sea hydrothermal vent; Cell
networks.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-663.pdf
Assessment and quantification of the anthropic impact on the posidonia oceanica seagrass meadow
Provedor de dados: 5
Autores: Alami, Sami; Bonacorsi, Marina; Clabaut, Philippe; Jouet, Gwenael; Pergent-martini, Christine; Pergent, Gerard;
Sterckeman, Aurore.
The regression of seagrass meadows has been extensively studied over the past few years. Although the causes of this regression
may be locally natural, it is more generally related to human impact. In the framework of the HalGolo (2010) and CoralCorse
(2013) oceanographic campaigns, acoustic data (mosaic of sonograms and bathymetry), validated by field data (Scuba diving,
ROV), were acquired at depths of -10 m and -50 m at the NATURA 2000 site “Grand Herbier de la Plaine Orientale” (Western
Mediterranean, Corsica). Processing of this data provided evidence of the scale of this mechanical degradation (trawling scars,
mooring, etc.), and enabled its quantification with regard to surface area and scar density. The main degradation was observed
between -20 and...
Tipo: Text
Palavras-chave: Anthropogenic impact; Corsica; Side Scan Sonar; Posidonia oceanica; Trawling.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00272/38364/36669.pdf
Utilisation des submersibles en biologie et en ecologie abyssale
Provedor de dados: 5
Autores: Alayse, Anne-marie.
With the advent of deep submergence research vessels (DSRVs) biological and ecological studies of ocean deeps have made great
strides. Especially these submersibles allowed to conduct physiological and biochemical experiments on benthic fauna directly on
the bottom or on board with alive retrieved animals. A second great interest is the possibility to work in chaotic areas and on
microenvironments. Without DSRVs most of measurements and observations obtained on hydrothermals vents would had been
impossible. We will present the different equipment designed for the two French DSRVs used during the cruises conducted by the
Departement "Environnement Profond" de l'IFREMER to study hydrothermal and "normal" deep-sea ecosystems. We will discuss
the new devices...
Tipo: Text
Palavras-chave: Oceanography; Hydrothermal springs; Ecosystems; Abyssal zone; Cruises; Ecology; Biology; Deep water;
Unmanned vehicles; Manned vehicles.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-1146.pdf
Description et fonctionnement d'une installation en circuit fermé destinée à l'élevage de larves et
juvéniles de soles. Premiers résultats
Provedor de dados: 5
Autores: Alayse, J.p.; Lahaye, J.
The experimental unit used previously in our laboratory for the study of the effect of the photoperiod on the growth of flatfish was
based on the use of tanks with separate recirculation systems. We modified it, connecting the different tanks to a single, more
powerful recirculation system. This new unit comprised four different parts s - a biological filtar and an ultraviolet sterilizer. - a
gravity operated water distribution system. - a series of 12 rearing tanks. - a piping system connecting the tank outlets to the
biological filter. The total volume of the unit was 8 900 l. 200 l were changed every week. The main advantages of this new unit
was that the quality of the water supplied to all tanks could be exactly the same, and that various parameters...
Tipo: Text
Palavras-chave: Circuit fermé; Élevage; Sole; Closed system; Breeding; Sole.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00305/41664/40873.pdf
Aspartate transcarbamylase in Artemia during early stages of development
Provedor de dados: 5
Autores: Alayse-danet, Anne-marie.
Kinetic properties of aspartate transcarbamylase (ATC) in crude extracts of Artemia were studied. The enzymatic kinetic is linear
with respect to time for at least 1 hr with crude extract from cysts or the earliest development stages, but not with crude extract
from older stages. ATC activity was assayed during early stages of development of two Artemia strains ; a relation has been
sought between ATC activities and growth rates. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-5407.pdf
Composition en cires, triglycérides, protéines et sucres du mésozooplancton
Provedor de dados: 5
Autores: Alayse-danet, Anne-marie; Daniel, Jean-yves; Le Coz, Jean-rene.
Analyses effectuées sur le zooplancton total des pêches verticales au WP2 et sur des animaux triés à partir des pêches horizontales
(Campagne RCA sur les côtes Atlantiques du Portugal). On ne signale pas de différence significative entre la composition
biochimique des populations du large et de la côte
Tipo: Text
Palavras-chave: Zooplancton; Milieu marin; Composition chimique; Glucide; Cire animale; Triglycéride; Protéine; Océan
Atlantique Nord; Upwelling; Méiofaune; Portugal; France; Zone côtière; Zooplankton; Marine environment; Chemical
composition; Carbohydrate; Animal wax; Triglyceride; Proteins; North Atlantic; Upwelling; Meiofauna; Portugal; France; Coastal
zone.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00189/29976/28429.pdf
Composition en acides aminés des paricules en suspension autour des évents hydrothermaux (dorsale
Est-Pacifique, 13°N)
Provedor de dados: 5
Autores: Alberic, P.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00112/22278/19953.pdf
On the seasonal and mesoscale variabilities of the Northern Current during the PRIMO-0 experiment
in the western Mediterranean-sea
Provedor de dados: 5
Autores: Alberola, C; Millot, Claude; Font, J.
In the western Mediterranean Sea, the Northern Current is one of the major veins and is formed by the junction, in the Ligurian
Sea, of the currents flowing northward along each side of Corsica; it is recognized as an entity along the continental slope as far as
the Catalan Sea; surrounding the central zone where dense water formation occurs in winter. The seasonal and mesoscale
variabilities of the Northern Current are analysed from a fortnightly hydrological survey carried out off Nice to a distance of
similar to 55 km, from October 1990 to July 1991, and from similar to 30 current time series collected as deep as 2000 m, on four
moorings set within a similar to 30 km coastal band from December 1990 to May 1991, in the framework of the PRIMO-O...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00096/20770/18396.pdf
Tidal currents in the western mediterranean-sea
Provedor de dados: 5
Autores: Alberola, C; Rousseau, S; Millot, C; Astraldi, M; Font, J; Garcialafuente, J; Gasparini, Gp; Send, U; Vangriesheim,
Annick.
A large number of several-month current time series is now available in the western Mediterranean Sea, and harmonic and
spectral analyses provide spatially coherent information about the major tidal (M2, S2, N2 and K1) currents in the region. When
they are significant, these currents are generally barotropic, they mainly rotate clockwise and their ellipses have orientations that
are strongly dependent on the local bathymetry. From the Alboran Sea to the Algerian Basin, the Ibiza Channel and as far as the
Sardinian Channel, the velocities of the semidiurnal components continuously decrease from a few 10(-2) m/s in the west to
10(-3) m/s and even less in the east. The phases increase eastward from the Alboran Sea to 3-4 degrees E in the western
Algerian...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00097/20777/18518.pdf
Résultats des campagnes scientifiques. Albert 1er de Monaco. Fascicule XLI. Exploration du
Nord-Ouest du Spitsberg
Provedor de dados: 5
Autores: Albert 1er, Grimaldi; Richard, Jules.
L'expédition se composait en 1906 de deux groupes topographiques dont l'un était accompagné d'un géologue. En 1907, il n'y
avait qu'un groupe topographique, auquel était associé un géologue. Par suite le géologue, qui était en même temps chargé des
travaux glaciologiques, était contraint d'accompagner les topographes et aussi quelquefois, de participer à leurs travaux. Toutefois,
en 1907, il lui fut loisible de séjourner quelques jours sur deux glaciers, le Glacier Lilliehöök dans la Baie Cross et le Glacier
Blomstrand dans la Baie King. Les résultats enregistrés ci-dessous sont, les uns dûs directement aux observations de M. Hoel sur
le terrain, les autres à l'étude des cartes et des photogrammes rapportés par la mission. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: Spitsberg; Campagne océanographique; Voyage; Histoire.
Ano: 1913
URL: http://archimer.ifremer.fr/doc/1913/publication-6917.pdf
Impact of nearshore wind stress curl on coastal circulation and primary productivity in the Peru
upwelling system
Provedor de dados: 5
Autores: Albert, A.; Echevin, V.; Levy, M; Aumont, Olivier.
Coastal upwelling dynamics are strongly affected by alongshore wind stress and nearshore wind stress curl. A coupled
physical-biogeochemical regional model and lagrangian diagnostics are used in the Peru current system to determine how the
upwelling of nutrients and the primary productivity are impacted by the spatial structure of the nearshore wind stress. Three wind
stress products derived from the ERS and QuikSCAT scatterometers and a smoothed QuikSCAT field, mainly differing in
nearshore wind stress curl patterns, were used. Simulations are found to produce significantly different mean surface chlorophyll
distributions and show that strong upwelling-favorable nearshore wind stress curl may locally induce a wide coastal productive
zone through upwelling...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00025/13648/10882.pdf
Simulation of the combined effects of artisanal and recreational fisheries on a Mediterranean MPA
ecosystem using a trophic model
Provedor de dados: 5
Autores: Albouy, Camille; Mouillot, David; Rocklin, Delphine; Culioli, Jean M.; Le Loc'H, Francois.
Marine protected areas (MPAs) have the potential to enhance the long-term sustainability of coastal resources, and the artisanal
fisheries which depend on them. However, recreational fisheries, which are increasing their impacts on coastal resources
worldwide, may reduce the benefits that MPAs provide to declining artisanal fisheries. Here we used the Bonifacio Straits Natural
Reserve (BSNR) Corsica as a study case to simulate the combined effects on coastal resources of artisanal and recreational fishing
efforts. The BSNR ecosystem was modelled using mass-balance modelling of trophic interactions. This model was compared to
another built on a non-protected area from the same region. We aggregated fishing fleets into artisanal and recreational
categories,...
Tipo: Text
Palavras-chave: Ecopath with Ecosim; Epinephelus marginatus; MPA; Trophic cascades; Artisanal fisheries; Recreational
activities; Mediterranean Sea.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00013/12436/9246.pdf
A comparison between sea-surface temperature-measurements from satellite noaa4 and from
airborne radiometer aries
Provedor de dados: 5
Autores: Albuisson, M; Pontier, L; Wald, L.
Measurements of sea surface temperatures (Sst) in the Gulf of Lions, obtained by the satellite "Noaa 4" sensor Vhrr and by the
airborne radiometer "Aries", are presented and compared. The results reveal the reliability of the Vhrr data in the range 16-20.
SOC, the degree of accuracy being within O. 5°C of the relative temperatures, despite a malfunctionning of the "Noaa 4" Vhrr.
Tipo: Text
Palavras-chave: Températures de surface; Télédétection; Sea surface temperatures; Remote sensing.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00323/43432/43082.pdf
Identification and Characterization of Carboxyl Esterases of Gill Chamber-Associated Microbiota in
the Deep-Sea Shrimp Rimicaris exoculata by Using Functional Metagenomics
Provedor de dados: 5
Autores: Alcaide, Maria; Tchigvintsev, Anatoli; Martinez-martinez, Monica; Popovic, Ana; Reva, Oleg N.; Lafraya, Alvaro;
Bargiela, Rafael; Nechitaylo, Taras Y.; Matesanz, Ruth; Cambon-bonavita, Marie-anne; Jebbar, Mohamed; Yakimov, Michail M.;
Savchenko, Alexei; Golyshina, Olga V.; Yakunin, Alexander F.; Golyshin, Peter N.; Ferrer, Manuel.
The shrimp Rimicaris exoculata dominates the fauna in deep-sea hydrothermal vent sites along the Mid-Atlantic Ridge (depth,
2,320 m). Here, we identified and biochemically characterized three carboxyl esterases from microbial communities inhabiting the
R. exoculata gill that were isolated by naive screens of a gill chamber metagenomic library. These proteins exhibit low to
moderate identity to known esterase sequences (<= 52%) and to each other (11.9 to 63.7%) and appear to have originated from
unknown species or from genera of Proteobacteria related to Thiothrix/Leucothrix (MGS-RG1/RG2) and to the Rhodobacteraceae
group (MGS-RG3). A library of 131 esters and 31 additional esterase/lipase preparations was used to evaluate the activity profiles
of these...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00256/36721/36438.pdf
Summer zooplankton metabolism and its relation to primary production in the western
Mediterranean
Provedor de dados: 5
Autores: Alcaraz, M.
Oxygen consumption and excretion rates for ammonia and soluble reactive phosphorus (SRP) by mesozooplankton were studied
at a series of stations located along a transect between the islands of Mallorca and Menorca during July 1983. As in a previous
cruise also made during the summer stratification period (July 1982), vertical profiles of zooplankton biomass showed the
existence of a zooplankton maximum, coinciding with the chlorophyll, phytoplankton and super(14)C fixation maxima. The mean
zooplankton excretion in the epiplankton layer can provide 13.7-16.8% of the N (as ammonia) and 67.2-76.6% of the P (as SRP)
requirements for primary production, assuming a mean carbon-to-nitrogen assimilation ratio (C/N) of 6.65, equal to the mean C/N
ratio of the...
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00267/37801/35882.pdf
Premiers résultats d'une étude quantitative de la reproduction de la sardine dans le Golfe du Lion
Provedor de dados: 5
Autores: Aldebert, Yvonne; Carries, Claude.
In this paper are given the first results of a quantitative study of the spawning of Pilchard Sardina pilchardus in the Gulf of
Lion~during Winter 1975 and Winter 1976. The mean density of eggs at each station and their average abundance in the spawning
area were estimated. The incubation time of eggs depending upon temperature was also calculated. En 1975 et 1976 une étude de
la reproduction de la sardine dans le Golfe du Lion a été réalisée. Les premiers résultats de cette étude, qui a pour but d'évaluer
quantitativement la ponte de cette espèce, permettent de donner une estimation moyenne de l'abondance des oeufs au cours d'une
campagne. La durée de l'incubation en fonction de la tempé-rature a d'autre part été déterminée.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00343/45379/44885.pdf
Engins de pêche pour l'ichthyoplancton : résultats des essais comparatifs réalisés en 1974 et 1975
Provedor de dados: 5
Autores: Aldebert, Yvonne; Dicenta, A; Piccinetti, C.
The results of comparisons between several zooplankton samplers are summarised.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00343/45380/44887.pdf
Comparison of methods for stock assessment of European hake Merluccius merluccius in the Gulf of
Lions (Northwestern mediterranean)
Provedor de dados: 5
Autores: Aldebert, Yvonne; Recasens, Laura.
European hake Merluccius merluccius is the main commercial demersal species in the Gulf of Lions (Northwestern
Mediterranean). This fish is exploited by French and Spanish trawler fleets and by small-scale fisheries using gillnets and
longlines. Data on landings and the demography of catches by type of gear are now available for the period 1988-1991. The
assessment of the hake stock was carried out using methods of virtual population analysis (VPA), or cohort analysis, based
respectively on mean pseudocohorts and cohorts by age. The results of these VPA were then analysed and compared from a
methodological point of view. The general results have confirmed previous studies with regard to the level of exploitation of the
species. The two methods gave quite...
Tipo: Text
Palavras-chave: Merluccius merluccius; Méditerranée; Méthodologie; Évaluation des stocks; Démographie des captures;
Mortalité par pêche; Merluccius merluccius; Mediterranean Sea; Methodology; Stock assessment; Population structure; Fishing
mortality.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29886/28341.pdf
Analysis of gear interactions in a hake fishery: The case of the Gulf of Lions (NW Mediterranean)
Provedor de dados: 5
Autores: Aldebert, Yvonne; Recasens, Laura; Lleonart, Jordi.
The hake of the Gulf of Lions is the most important target species of the demersal fishery. It is exploited by four types of gear
(two trawls, gillnet and longline) used by two countries (France and Spain). Some analyses of its dynamics, based on 19 88 length
frequency data by gear, have been performed. These analyses consisted in a VPA (Virtual Population Analysis). phis a Y/R (Yield
per Recruit analysis) carried out on two parameter scenarios by sex, under a steady state hypothesis (with constant recruitment).
Some estimates of biomass and exploitation level were obtained, and sensitivity to the biological parameters and interaction
between types of gear were studied. As a main conclusion, it can be seen that the types of gear fishing mainly small...
Tipo: Text
Palavras-chave: Assessment; Gaar interaction; Hake; Gulf of Lions; NW Mediterranean.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00193/30430/28847.pdf
La reproduction de la sardine et de l'anchois dans le golfe du lion
Provedor de dados: 5
Autores: Aldebert, Yvonne; Tournier, Henri.
Tipo: Text
Ano: 1971
URL: http://archimer.ifremer.fr/doc/1971/publication-2386.pdf
Reproduction de la sardine dans le golfe du Lion - Son importance pour l'avenir de la pêche
Provedor de dados: 5
Autores: Aldebert, Yvonne; Tournier, Henri.
Ces quelques données sur la reproduction de la sardine dans le golfe du Lion nous amènent à insister sur plusieurs points
importants. 1) Ces recherches, effectuées avec régularité, permettent d'apprécier la vitalité des oeufs et d'estimer l'importance de
la ponte. Dans bien des cas les irrégularités dans la production peuvent être prévues. Ainsi les mauvaises pontes des hivers
1961-62 et 1962-63 sont sans doute à l'origine du déficit constaté dans les apports de sardines en 1965. Cette situation n'a
heureusement pas duré, le recrutement ayant été très bon, surtout en Languedoc, les années suivantes. 2) D'une manière générale
et malgré certaines fluctuations la vitalité des oeufs pêchés dans le golfe du Lion est bonne. De plus, les larves y trouvent des...
Tipo: Text
Ano: 1967
URL: http://archimer.ifremer.fr/doc/1967/publication-7270.pdf
Dynamics of an estuarine ecosystem - The Chesapeake Bay experience: Statistical approaches and
water quality patterns
Provedor de dados: 5
Autores: Alden, Rw.
A long-term water quality monitoring program has been established in the Virginian waters of the Chesapeake Bay. To date, over
eight years of data have been analyzed to characterize spatio-temporal patterns and long-term trends in water quality.
Complementary multivariate statistical procedures were employed to define spatial and seasonal patterns, while a series of
non-parametric trend analyses were used for determining overall, site-specific, and season-specific long-term trends for water
quality variables in the tributaries and mainstem of the Bay. Particular attention was focused on determining the effect of river
flow on the trends, because flow rates in some of the tributaries have changed dramatically since the beginning of the monitoring
program....
Tipo: Text
Palavras-chave: Water quality; Monitoring; Statistics; Trends; Flow.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20461/18133.pdf
"Gill disease" of Portuguese Oysters
Provedor de dados: 5
Autores: Alderman, D. J.; Gras, Paul.
During April and May of this year, there has been a heavy mortality of Portuguese oysters, Crassostrea angulata LmK., which
were imported into Britain from the River Tagus (Portugal) in March. Losses in some cases exceeded 90 per cent. The symptoms
shown by the dyring oysters are the same as those seen in Britain and France in C. angulata in 1967 and 1968. Farley described
the general symptoms in oysters (C. virginica Gmelin) dying of prolonged functional or infectious disease. These gross symtoms
appear to be similar in the case of several different diseases including the present European mortality.
Tipo: Text
Palavras-chave: Gill; Crassostrea angulata; Oysters.
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-5931.PDF
Ecological observations on the deep-sea anemone actinoscyphia-aurelia
Provedor de dados: 5
Autores: Aldred, Rg; Riemannzurneck, K; Thiel, H; Rice, Al.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00122/23354/21181.pdf
Note sur quelques farines de poissons tropicaux
Provedor de dados: 5
Autores: Aldrin, Jf.
Il n'est pas douteux que les farines de poisson pourraient être employées pour la consommation humaine en Afrique, où des
carences en protéines se font souvent sentir et où la chaleur rend la conservation du poisson difficile. La mise en oeuvre du froid
qui serait nécessaire est coûteuse, notamment en raison des communications longues et difficiles; elle est limitée par la faiblesse
du pouvoir d'achat. Huit espèces de poissons communément pêchées dans le Golfe de Guinée pourraient fournir des farines de
qualité qui sont acceptées facilement par la population. Les teneurs en protéines s'échelonnent de 57 à 75,2 %' les teneurs en
graisse sont habituellement comprises entre 2,4 et 15 %.
(OCR non contrôlé)
Tipo: Text
Ano: 1965
URL: http://archimer.ifremer.fr/doc/1965/publication-4025.pdf
Coastal hydrodynamics in a windy lagoon
Provedor de dados: 5
Autores: Alekseenko, Elena; Roux, Bernard; Sukhinov, A.; Kotarba, R.; Fougere, D.
The nonlinear hydrodynamics (3D RANS model) in a wide semi-enclosed windy lagoonal ecosystem is accurately investigated in
the context of analyzing the limiting conditions of the recovery of submerged aquatic vegetation (SAV). Among the main natural
hydrodynamical forcings, we consider the wind effect. We mainly focus attention to characteristic velocities (free surface and
bottom) and to free surface elevation in the nearshore regions (with shallow water) where SAV were severely damaged in the past
decades. Our main result relates to wind effects that form downwind coastal jets, alongshore, in shallow water areas, due to Berre
bathymetry. Such coastal jets, which were never described previously in Berre lagoon literature, give rise to substantial bottom...
Tipo: Text
Palavras-chave: Hydrodynamics; Berre lagoon; Current structures; Zostera noltii; Seagrass protection.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00144/25511/24704.pdf
Nonlinear hydrodynamics in a Mediterranean lagoon
Provedor de dados: 5
Autores: Alekseenko, Elena; Roux, Bernard; Sukhinov, A.; Kotarba, R.; Fougere, D.
The paper addresses the application of the nonlinear hydrodynamics model (RANS (Reynolds-averaged Navier-Stokes) equations)
in a wide semi-enclosed Mediterranean lagoon (Berre lagoon), considering three natural forcing functions, i.e., sea tide
propagating through a long narrow channel, wind and runoff. Main attention is focused to characteristic velocities (at free surface
and bottom) and to free surface elevation associated to each of these three mechanisms, with special attention to the nearshore
areas (i.e., in shallow water). The most interesting result concerns wind effects which, due to Berre lagoon bathymetry, give rise to
downwind coastal jets, alongshore, in shallow water areas. Such coastal jets were never mentioned before in Berre lagoon...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24838/22912.pdf
3D modeling of the Arab Formation (Maydan Mahzam Field, Offshore Qatar): an integrated
approach
Provedor de dados: 5
Autores: Al-emadi, Ahmed; Jorry, Stephan; Chautru, J.m.; Caline, B.; Blum, M.s.; Jedaan, N.; Fryer, V.; Leandri, P.; Fraisse, C.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00091/20184/17845.pdf
Screening of Lactobacillus spp. for the prevention of Pseudomonas aeruginosa pulmonary infections
Provedor de dados: 5
Autores: Alexandre, Youenn; Le Berre, Rozenn; Barbier, Georges; Le Blay, Gwenaelle.
Background: Pseudomonas aeruginosa is an opportunistic pathogen that significantly increases morbidity and mortality in
nosocomial infections and cystic fibrosis patients. Its pathogenicity especially relies on the production of virulence factors or
resistances to many antibiotics. Since multiplication of antibiotic resistance can lead to therapeutic impasses, it becomes necessary
to develop new tools for fighting P. aeruginosa infections. The use of probiotics is one of the ways currently being explored.
Probiotics are microorganisms that exert a positive effect on the host's health and some of them are known to possess antibacterial
activities. Since most of their effects have been shown in the digestive tract, experimental data compatible with the...
Tipo: Text
Palavras-chave: Pseudomonas aeruginosa; Lactobacillus; Probiotics; Organic acids; Biofilm formation; Elastolytic activity.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30842/29211.pdf
Inference of vertical motion in the Equatorial Indian Ocean using satellite data
Provedor de dados: 5
Autores: Ali, M M; Simon, B; Desai, P S.
Vertical motion in the equatorial Indian Ocean in the form of vertical displacements of the thermocline is studied during the
Monex-79 summer monsoon season. These displacements are associated with the jet-like surface response of the equatorial ocean
to zonal windstress reversal at the time of the onset of the monsoon. The surface windstress distribution and variations are
obtained indirectly from GOES geosynchronous satellite low-cloud motion winds by utilizing suitable collateral data. The
sea-surface-temperature field from the TIROS-N satellite is also examined. A more complete experiment involving INSAT,
NOAA, microwave satellites, in situ data, numerical models and biological component is proposed (EQUINOX), signifying the
response to seasonal...
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00267/37848/35929.pdf
Organisation spatio-temporelle des peuplements ichtyologiques dans deux lagunes côtières : au
Portugal et en Guadeloupe
Provedor de dados: 5
Autores: Aliaume, C; Monteiro, C; Louis, M; Hoai, Tl; Lasserre, G.
Fish communities from two lagoon ecosystems, Ria Formosa (Portugal) and Grand Cul-de-Sac Marin (Guadeloupe), show
interesting similarities of spatial and temporal organization. On the temporal scale, three community changes are observed in both
systems, corresponding to massive arrivals and/or departures of migratory species. However, these migrations are more
conspicuous in the Ria Formosa than in the Grand Cul-de-Sac Marin. On a spatial scale, the community structure is also largely
determined by migratory species, whose abundance is a factor of homogenization. This is clearly observed in Ria Formosa, where
the lagoon selection applies on a regional scale. Conversely, the community of sedentary fish identifies remarkable stations
affected by chronic...
Tipo: Text
Palavras-chave: COMMUNITIES; FISH ASSEMBLAGES; LAGOONS; CARIBBEAN; PORTUGAL.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00099/21056/18682.pdf
Etude de l'évolution simultanée des abondances et de la survie des Salmonella et des coliformes fécaux
dans différents ouvrages épurateurs et milieux aquatiques
Provedor de dados: 5
Autores: Alibou, Jamal.
La concentration humaine est de plus en plus importante dans les centres urbains. Il en résulte une augmentation des rejets et une
aggravation des risques de pollution. De plus ces rejets sont souvent concentrés par les stations d'épuration puis émis en un seul
point dans le milieu récepteur (mer, rivière, étang). L'eau, élément vital qui nous est offert par la nature, n'est pas inépuisable. De
plus les besoins humains en eau ne cessent d'augmenter et ce que jadis l'homme trouvait dans la nature sans avoir à le purifier, et
qu'il pouvait consommer directement, devient un bien très précieux et parfois très coûteux.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00059/17018/14521.pdf
La pêche maritime et la recherche scientifique à la réunion - Rapport de mission du 2 au 10 avril 1974
Provedor de dados: 5
Autores: Allain, Ch.
La présente mission, prise en charge par la Préfecture de La Réunion, avait pour but d'examiner la situation du laboratoire de La
Réunion vis-à-vis des problèmes de la pêche dans les secteurs proches et dans l'ensemble de l'Océan Indien. Elle consistait donc à
prendre contact avec les différents représentants des armements et de la pêche artisanale pour faire le point de la situation actuelle,
connaître les projets d'équipement et d'infrastructure, ainsi que des campagnes futures et essayer d'adapter, en accord avec les
autorités locales, le programme de recherches de l'Institut des Pêches à ces futures activités, tout en envisageant la réorganisation
du laboratoire actuel.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/00047/15780/13181.pdf
Coopération Franco-Argentine - Aspects de la coopération scientifique et technique se rapportant aux
pêches maritimes
Provedor de dados: 5
Autores: Allain, Ch.
Décidée au cours des travaux de la réunion de la Commission mixte franco-argentine qui s'est tenue à Paris en septembre 1979,
cette mission avait pour but de faire le point de la coopération en océanologie avec les responsables argentins des ministères
concernés et des principaux organismes de recherches, tout en evaluant les besoins actuels de ces Centres. Le compte rendu
succinct de la mission et la déclaration d'intention formulée auprès des autorités argentines figurent dans le document joint en
annexe. Compte tenu du temps limité imparti à ce séjour, nous avons toutefois jugé utile, pour élargir l'information, de reprendre
dans ce rapport quelques éléments empruntés aux travaux antérieurs et à des observations relativement récentes sur la pêche.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00046/15691/13093.pdf
Topographie dynamique et courants généraux dans le bassin occidental de la méditerranée au nord
du 42e parallèle (supplément a l'étude hydrologique de septembre-octobre 1958)
Provedor de dados: 5
Autores: Allain, Charles.
The main circulation patterns described in the hydrological study of the sector in the Mediterranean Sea north of the 42nd parallel
(Furnestin and Allain, 1962) were confirmed with data on the direction of general currents and their intensity.This study
supplements the current dynamics study conducted during the summer of 1957 in the western part of the Mediterranean Sea
(Allain, 1960) and provides data for comparing summer and fall current regimes, particularly in the Gulf of Lion.We used
standard methods for dynamic calculations, which are described in a 1960 publication. We will directly discuss the vertical
sections of current velocities on the 42nd parallel where observations were carried out down to the near-bottom, then we will
examine the dynamic...
Tipo: Text
Ano: 1963
URL: http://archimer.ifremer.fr/doc/1963/publication-4114.pdf
L'hydrologie de la bordure atlantique Nord-Américaine du banc St-Pierre au cap Cod en été 1962
(Campagne de la «Thalassa », 19 juillet.27 août 1962)
Provedor de dados: 5
Autores: Allain, Charles.
This brief hydrology of the Newfoundland and Scotian slopes, and of the Georges bank during summer 1962 links together two
sectors that are mostly treated separately by Canadian and American scientists. It enabled us to show the different well-known
formations that overlap in this region as well as to provide original details which could impact the localization of fishing areas.
The extension of the waters of the Gulf of St. Lawrence, more or less mixed with continental waters is perceptible in the surface
layer, as far as the Gulf of Maine. In this area, but also on the Georges Bank, the situation is quite similar to that presented by
BIGELOW in 1924. Above, from 20 to 40 m and to an average of 130 m deep, the cold middle layer can be found, and all the...
Tipo: Text
Ano: 1965
URL: http://archimer.ifremer.fr/doc/1965/publication-4020.pdf
Mission d'information sur le développement de la pêche dans le territoire des AFARS et des ISSAS du
10 au 15 avril 1974
Provedor de dados: 5
Autores: Allain, Charles.
Cette mission d'information, prise en charge par le Centre d'Etudes Géologiques et de Développement du Territoire des Afars et
des Issas, s'est déroulée du 10 au 15 avril, à l'issue d'une mission à La Réunion. Cette période coïncidant avec les congés de
pâques, il n'a guère été possible de prendre contact avec les autorités locales.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/00088/19907/17570.pdf
Etude sur le comportement du germon (Germo alalunga gmel.) en fonction des conditions
hydrologiques (Campagne de "La Pélagia" du 17 août au 24 septembre dans le golfe de Gascogne)
Provedor de dados: 5
Autores: Allain, Charles.
La campagne de "La Pélagia" durant la 2e quinzaine d'août et le mois de septembre, dans le golfe de Gascogne, avait deux buts
essentiels : 1) étudier les conditions du milieu marin dans lesquelles se rencontre le germon à la fin de la saison de pêche ; 2)
essayer d'expliquer le phénomène de la "coupure", c'est-à-dire rechercher la raison pour laquelle le germon se disperse et disparaît
du golfe à une certaine époque. Ce problème ne pouvait être résolu que par des observations hydrologiques et une série de
marquages.
Tipo: Text
Ano: 1967
URL: http://archimer.ifremer.fr/doc/1967/publication-7275.pdf
Les poissons et les courants
Provedor de dados: 5
Autores: Allain, Charles.
The distribution of marine species according to climatic environmental conditions has been of interest to biologist for a long time.
Biologists distinguish fauna from cold regions from fauna of temperate regions and have geographically classified them into
provinces. In North Atlantic waters, from north to south, are recognised the following provinces: the Arctic Province that stretches
from the North Pole to the Barents Sea; a Boreal province that covers the shelves of Scandinavia and the British Isles; the
Atlantic-Mauritanian province (temperate) that includes the Lusitanian province and the Mauritanian province between which
may be intercalated a rather distinct Mediterranean domain; finally, more to the south, a Guinean province (tropical) that...
Tipo: Text
Ano: 1964
URL: http://archimer.ifremer.fr/doc/1964/publication-4051.pdf
Topographie dynamique et courants généraux dans le bassin occidental de la méditerranée (Golfe du
Lion, Mer catalane, Mer d'Alhoran et ses abords, secteur à l'est de la Corse)
Provedor de dados: 5
Autores: Allain, Charles.
The hydrology of the Gulf of Lion, the Balearic Sea and the Alboran Sea had been previously studied by J. Furnestin (1960),
based on observations recorded on board the "Président-Théodore-Tissier" in June-July 1957. This study revealed important new
data, prompting us to study the surface currents and determine circulation patterns in this part of the western Mediterranean Sea....
Tipo: Text
Ano: 1960
URL: http://archimer.ifremer.fr/doc/1960/publication-4282.pdf
L'hydrologie et les courants du détroit de Gibraltar pendant l'été de 1959
Provedor de dados: 5
Autores: Allain, Charles.
It is difficult to draw a general conclusion for a study so limited in space and in time. We have seen that the hydrological regime
in the Gibraltar Strait is subject to rapid fluctuations and the overall nature of the exchange flow between the Atlantic Ocean and
the Mediterranean Sea can only be summarised after a large number of observations at permanent stations.In a certain manner,
each chapter constitutes a separate study that progressively highlights new elements and that has its own conclusion. For this
reason, we content ourselves with a review of the main points that were considered.After a brief historical account of the different
oceanographic cruises in the Gibraltar Strait, we examined a vertical section and two horizontal sections of...
Tipo: Text
Ano: 1964
URL: http://archimer.ifremer.fr/doc/1964/publication-4028.pdf
La Pêche et ses possibilités de développement dans les Emirats Arabes Unis - Rapport de mission (4
au 15 novembre 1975), Étude retrospective et perspectives d'actions concertées
Provedor de dados: 5
Autores: Allain, Charles; Abbes, Rene.
L'importance des quantités de poissons actuellement débarquées le long du littoral des Emirats Arabes Unis, vis à vis de
techniques et de méthodes de pêche demeurées traditionnelles, laisse à penser que le potentiel halieutique du golfe Arabe et du
golfe d'Oman proche, pourrait donner lieu, si cette richesse était démontrée scientifiquement, à une mise en valeur plus rationnelle
et à un développement de la pêche qui aurait une incidence, non seulement sur une diversification de l'économie du pays, mais
aussi sur le plan social de la profession concernée. Pour répondre à cet objectif, le Gouvernement de la Fédération des Emirats,
dans les personnes du Ministre de l'Agriculture et des Pêches et du Ministre du Plan, ont déjà mis sur pied un vaste projet qui...
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/00046/15761/13163.pdf
L'organisation de la recherche scientifique et technique sur les pêches maritimes en Iran
Provedor de dados: 5
Autores: Allain, Charles; Abbes, Rene; Leroy, Claude.
Les ressources du golfe Persique font l'objet depuis de nombreuses années, d'une exploitation importante de la part de l'Iran, basée
principalement sur la richesse de ses côtes en crevettes.
Afin de rentabiliser au mieux ces ressources, lesquelles,
traditionnellement, faisaient naguère l'objet d'une activité essentiellement artisanale, la pêche a été depuis peu organisée sur une
échelle industrielle par la Société des Pêcheries du Sud (1) qui exerce son activité dans le golfe Persique et la Mer d'Oman.
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00046/15727/13129.pdf
Migrations du germon en fonction des variations thermiques du milieu entre le secteur Portugais et le
SO de l'Irlande - Campagnes de "La Pélagia" et de la "Thalassa" du 18 mai au 30 septembre 1968
Provedor de dados: 5
Autores: Allain, Charles; Aloncle, Henri.
Les résultats encourageants obtenus au cours de la campagne du thon pendant l'été 1967, dans le golfe de Gascogne et sur la
bordure cantabrique (1), nous ont conduits à élargir cette annee nos investigations sur une aire étendue vers le S au large du
Portugal et vers le N au secteur SO de l'Irlande. Le but principal de l'opération était d'étudier la répartition et les migrations du
germon depuis le printemps jusqu'au début de l'automne et accessoirement de faire quelques observations sur le thon rouge et les
autres espèces qui pourraient être rencontrées. Ce programme a pu être réalisé au cours de deux campagnes qui ont eu lieu du 18
mai au 5 juillet, "avec la Pelagia" et du 19 août au 30 septembre, avec la "Thalassa" et "la Pelagia" travaillant...
Tipo: Text
Ano: 1968
URL: http://archimer.ifremer.fr/doc/1968/publication-7286.pdf
L'hydrologie et les courants généraux du détroit de Danemark et du nord de la mer d'Irminger du 20
mars au 8 mai 1963 participation de la «Thalassa» a la campagne internationale Norwestlant 1
Provedor de dados: 5
Autores: Allain, Charles; Dardignac, Jean; Vincent, A.
1. -Norwestlant expedition and the "Thalassa" cruise.The International commission of NW Atlantic fisheries (I.C.N.A.F.)
organized from April to July 1963 a joint expedition in the Labrador Sea and the Irminger Sea, whose main purpose was to study
cod and sebaste planktonic stages according to environmental conditions on the continental fringe of Labrador, Greenland and
Iceland.Twelve vessels from Canada, Iceland, U.S.S.R., Norway, Denmark, United-Kingdom and France collaborated with this
research in the different sectors that had been allocated to them.2.-The overall program was based on the following points: 1°
assessing simultaneously cod and sebaste reproduction on the continental shelf and slope, through a large number of plankton
fisheries; 2° looking...
Tipo: Text
Ano: 1967
URL: http://archimer.ifremer.fr/doc/1967/publication-3799.pdf
Hydrologie de la Mediterranee occidentale (secteur meridional et Golfe du Lion), en automne 1963
Campagne de la « Thalassa » du 12 octobre au 27 novembre
Provedor de dados: 5
Autores: Allain, Charles; Furnestin, Jean.
The western basin of the Mediterranean was the subject of follow-up hydrological observations during these last few years by
ships of the Institute of Maritime Fishing. Knowledge of the thermohaline structure over the far-flung sectors of the coastal strip,
that of the fronts that form upon contact with the various opposing masses of water, also that of the particularly active vertical
movements in this sea were in fact necessary for attempting to locate the various marine species in their respective habitat. It is in
this way that during the summer of 1957, the President Theodore Tissier undertook a campaign that encompasses the sectors of
the Alboran Sea, the Catalan Sea, the Gulf of Lion and western Corsica. The results of these observations were...
Tipo: Text
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-3154.pdf
La situation de la pêche sur les bancs occidentaux du Groënland en été 1970 (Campagne de la
"Thalassa" en juillet-août)
Provedor de dados: 5
Autores: Allain, Charles; Lamolet, J; Leroy, C; L''Herrou, R; Minet, Jean-pierre; Le Men, R; Tailliez, J; Barbaroux, Olivier;
Commandant Corre, -; Gastaud, Jean-marie; Le Gallo,; Berthome, O; Coatanea,; Maurin, D; Allain, Charles.
Cette première campagne de la "Thalassa" sur les bancs occidentaux du Groënland pendant le mois de juillet et la première
quinzaine d'août 1970 nous a permis de tirer d'intéressantes conclusions sur l'état actuel du stock de morue, la biologie des
différentes espèces rencontrées et les conditions de milieu marin. Elle représente en outre une fructueuse expérience en ce qui
concerne la technique de chalutage sur ces fonds particulièrement tourmentés, dans des conditions de navigation souvent
difficiles. L'extension de la banquise issue de la région orientale du Groënland ne nous a pas permis d'étudier les bancs du
premier tiers sud et nos travaux n'ont pu commencer qu'à hauteur du banc Dana. Les observations hydrologiques montrent que
pendant l'été 1970...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-7004.pdf
Etude épidémiologique des mortalités de naissain d'huîtres creuses observées en 2008 en France Etude épidémiologique analytique. Rapport final
Provedor de dados: 5
Autores: Allain, Gwenhael.
A la suite des mortalités massives d'huîtres creuses (Crassostrea gigas) observées en France dans tous les bassins de production
ostréicoles, une étude épidémiologique a été engagée. Débutée en octobre 2008, son objectif est d'aider à l'identification de la (ou
les) causees) de ces mortalités. Elle comprend deux parties. Une première phase, descriptive, a consisté à décrire la distribution
des mortalités dans le temps et l'espace, ainsi que la population touchée, puis à formuler des hypothèses concernant l'implication
d'un ou de plusieurs facteurs de risque dans le phénomène observé. La seconde partie est une étude analytique dont l'objectif est
de tester les hypothèses formulées lors de l'enquête épidémiologique descriptive, en étudiant l'association...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00306/41766/40979.pdf
Modélisation biophysique pour la prévision du recrutement
Provedor de dados: 5
Autores: Allain, Gwenhael.
Exploited fish populations are dependent on recruitment (i.e. size of the new year class) to sustain their abundance. Recruitment
variations are related to hydroclimatic variations and may accentuate the detrimental effects of fishing. Recruitment prediction
requires accurate fisheries oceanographic tools, which are expected to be more reliable than large-scale correlation analyses
between fish abundance and climate variables. Recruitment is the result of the integration over a season and large oceanic areas
of processes affecting larval survival, which are dependent on small-scale mechanisms. Hydrodynamic models are a tool to
perform this integration. This thesis aims at exploring and modelling physical-biological interaction mechanisms in order to...
Tipo: Text
Palavras-chave: Anchovy; Upwelling; Turbulence; Retention; Fisheries management; Population dynamics; Stock environment
interaction; Stock recruitment relation; Scale integration; Individual based models; Survival; Growth; Otolith; Physical biological
interactions; Prediction; Recruitment; Turbulence; Rétention; Méso échelle; Intégration des échelles; Modèle de survie; Modèle de
ponte; Modèles individu centrés; Modèles de corrélation; Modèles stochastiques; Juvéniles; Larves; Otolithe; Modèle de
croissance; Interactions physique biologie; Prévision; Recrutement.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/these-5.pdf
The influence of environment and spawning distribution on the survival of anchovy (Engraulis
encrasicolus) larvae in the Bay of Biscay (NE Atlantic) investigated by biophysical simulations
Provedor de dados: 5
Autores: Allain, Gwenhael; Petitgas, Pierre; Lazure, Pascal.
A growth and survival model of the early life stages was run along virtual drift trajectories tracked in a hydrodynamic model to
simulate the annual recruitment process of anchovy (Engraulis encrasicolus) in the Bay of Biscay (NE Atlantic). These
biophysical simulations concerning three different years were analysed in order to investigate the influence of environment and
spawning dynamics on the survival of larvae and juveniles. The location of space-time survival windows suggested major
environmental mechanisms involved in simulated recruitment variability at the different scales - retention of larvae and juveniles
in favourable habitats over the shelf margins and turbulence effects. These small-scale and meso-scale mechanisms were related to
the...
Tipo: Text
Palavras-chave: Turbulence; Retention; Recruitment; Physical biological interactions; Larval survival; IBM; Biscay; Anchovy.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3423.pdf
Biophysical modelling of larval drift, growth and survival for the prediction of anchovy (Engraulis
encrasicolus) recruitment in the Bay of Biscay (NE Atlantic)
Provedor de dados: 5
Autores: Allain, Gwenhael; Petitgas, Pierre; Lazure, Pascal; Grellier, Patrick.
Fish recruitment is the result of the integration of small-scale processes affecting larval survival over a season and large oceanic
areas. A hydrodynamic model was used to explore and model these physical-biological interaction mechanisms and then to
perform the integration from individual to population scales in order to provide recruitment predictions for fisheries management.
This method was applied to the case of anchovy (Engraulis encrasicolus) in the Bay of Biscay (NE Atlantic). The main data
available to investigate survival mechanisms were past growth (otolith) records of larvae and juveniles sampled at sea. The drift
history of these individuals was reconstructed by a backtracking procedure using hydrodynamic simulations. The relationships...
Tipo: Text
Palavras-chave: Recruitment; Physical biological interactions; Individual based models; Biscay; Anchovy.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3422.pdf
Structure des populations de Paracentrotus lividus (Lamarck) (Echinodermata, Echinoidea) soumises
a la peche sur les cotes nord de Bretagne.
Provedor de dados: 5
Autores: Allain, J.-y.
The population structure of P. lividus on the northern coasts of Brittany is discussed. Details are given on biometry, relative
growth, reproduction and sexuality. Effects of fishing on the populations is discussed, together with population evolution and the
effects of pollution.
Tipo: Text
Palavras-chave: ANE; France; Brittany Echinoidea Strongylocentrotus lividus Psammechinus miliaris Paracentrotus lividus
Population characteristics Population dynamics Pollution effects Fishing mortality Fishing effort Growth rate Biometrics Ecology.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2013.pdf
Ecologie, biologie et exploitation des populations de poissons profonds de l'atlantique du nord-est
Provedor de dados: 5
Autores: Allain, Valerie.
Three parameters in relation with their exploitation, i.e. fleet description, discards evaluation and stock assessment, were
considered. The French deep-sea fleet is composed of 50 industrial and semi-industrial boats, 20 of them are specialised. They
come from the harbours of Boulogne, Concarneau and Lorient and by year land 19 000 t of deep-sea fishes of wbich grenadiers
account for 7 500 1. A decrease of deep-sea fishes catch-per-unit effort (CPUE) has been noted since the beginning of the
exploitation. But since 2 or 3 years, a stabilisation of grenadier, black scabbard and blue ling CPUEs has been noticed
Professional fish catches showed that only 8 species among which there are black scabbard, orange roughy, sharks are totally
landed; only one...
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/these-4288.pdf
Age estimation and growth of some deep-sea fish from the northeast Atlantic ocean
Provedor de dados: 5
Autores: Allain, Valerie; Lorance, Pascal.
Age is a necessary parameter used in population dynamics to assess the state of exploited resources. This parameter is poorly
known for most deep-sea species (depth > 400 m). This work focused on age estimation from otoliths of Alepocephalus bairdii
(Alepocephalidae), Coryphaenoides rupestris (Macrouridae), Helicolenus dactylopterus (Sebastidae) and Hoplostethus atlanticus
(Trachichthyidae), which French fishery exploitation, off the west coasts of the British Isles, began the late 1980's. Considering
otolith growth zones as annual, the four species all show high longevity: 38, 54, 43 and 130 years, respectively, together with slow
growth. The differences in growth between sex were estimated and difficulties in accurately estimating the age were...
Tipo: Text
Palavras-chave: Alepocephalus bairdii; Coryphaenoides rupestris; Helicolenus dactylopterus; Hoplostethus atlanticus; ANE;
Slope fish; Age estimation; Otoliths.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00000/10396/7690.pdf
Preliminary estimates of French deepwater fishery discards in the Northeast Atlantic Ocean
Provedor de dados: 5
Autores: Allain, Virginie; Biseau, Alain; Kergoat, Bernard.
French deepwater fish exploitation (500 m) began off the West coast of the British Isles in 1973. It further developed in the 1980s,
and intensified in the 1990s. In 1997, the French fleet comprised 49 boats, and since 1995 has landed yearly about 19,500 t of
deepwater fish species, of which, the grenadier Coryphaenoides rupestris (Macrouridae) has been the most abundant. Discard data
were sampled on-board by observers on French high sea trawlers from 1995 to 1997. Eight species were identified as totally
landed, 43 non-commercial species as totally discarded and only one, the grenadier, as both landed and discarded. The mean
discarding rate by haul was 48.5% in weight, whereas the mean grenadier discarding rate was 21.2%; these rates increased with
depth....
Tipo: Text
Palavras-chave: Length frequency distribution; Discards; Discarding rate; Coryphaenoides rupestris; Alepacephalus bairdii.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-751.pdf
SOFI: a 3D simulator for the generation of underwater optical images
Provedor de dados: 5
Autores: Allais, Anne-gaelle; Bouhier, Marie-edith; Edmond, Toussaint; Maciol, Nicolas; Nicolas, Stephane; Boffety, M.;
Galland, Frederic; Chami, Malik; Ebert, Kerstin.
We present an original simulator - called SOFI - for the synthetic generation of underwater optical images. The simulator
architecture is flexible and relies on flow diagrams in order to allow the integration of various models for image generation which
are based on the underwater optical phenomena. The objective is also to ensure real time or quasi real time performance so it takes
advantage of the latest technologies, such as GPGPU, and relies on GPU programming under CUDA. Two kinds of models for
image generation are presented and should be integrated in SOFI: (1) the OSOA model based on the radiative transfer theory and
(2) global image modeling which describes globally how an image is deteriorated under the effects of sea water.
Tipo: Text
Palavras-chave: Simulator; GPU; GPGPU; Underwater; Radiative transfer; Image modeling.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00072/18326/16012.pdf
Combining vitassign and colony for pedigree reconstruction in a case of factorial mating with missing
parental genotypes
Provedor de dados: 5
Autores: Allal, Francois; Doan, Q.k.; Chatain, Beatrice; Vergnet, Alain; Vandeputte, Marc.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00306/41694/40971.pdf
Combining Vitassign and Colony for pedigree reconstruction in a case of factorial mating with
missing parental genotypes
Provedor de dados: 5
Autores: Allal, Francois; Doan, Q.k.; Chatain, Beatrice; Vergnet, Alain; Vandeputte, Marc.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39180/37742.pdf
Analyse du comportement des flottilles de pêche de Boulogne sur Mer
Provedor de dados: 5
Autores: Allard, M. O.
Le projet de recherche actuel répond donc A un besoin d'enrichissement mutuel des approches biologiques et économiques face A
un double enjeu : - socio-économique : la crise subie par un secteur représentant traditionnellement l'activité principale de
certaines régions, - écologique : la survie de certaines espèces menacées par une pêche excessive, les deux enjeux étant
directement liés dans de nombreux. L'idée est la suivante : à. partir des comportements de pêche observés au cours d'une année sur
l'ensemble des bateaux de pêche inscrits A Boulogne-sur-Mer,essayer de définir des stratégies-types et d'isoler ainsi des groupes
de bateaux aux comportements voisin. Cela devrait conduire A des distinctions de flottilles plus pertinentes que les...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4216.pdf
Field determination of the leeway of drifting objects
Provedor de dados: 5
Autores: Allen, Arthur; Roth, Jens-christian; Maisondieu, Christophe; Breivik, Oyvind; Forest, Bertrand.
The leeway (windage) of five typical SAR/HAZMAT objects (person in water, mine, small sailboat, small open boat and a 20-ft
container) and is studied. The method is applicable to objects smaller than 30m
Tipo: Text
Palavras-chave: SAR; HAZMAT; Trajectory models; Leeway; Windage; Surface drift; Operational oceanography.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00254/36492/35036.pdf
Structure and variability of shelf sea fronts as observed by an undulating ctd system
Provedor de dados: 5
Autores: Allen, Claire; Simpson, Jh; Carson, Rm.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00122/23295/21122.pdf
Detection and analysis of unusual events in long-term zooplankton and nekton data sets from North
Inlet Estuary, South Carolina, USA
Provedor de dados: 5
Autores: Allen, Dm; Edwards, D; Feller, Rj; Hutchinson, Se; Ogburnmatthews, V.
Unusual events and disturbances are important sources of variability in ecological data sets, but methods for their detection and
analysis are not readily available. We have adapted widely-used quality control methods to identify and quantify unusual events in
ten-year-long data sets from the relatively pristine North Inlet Estuary, South Carolina, USA.-Seasonal patterns and long-term
trends were first removed from biweekly zooplankton and nekton abundance and corresponding water temperature and salinity
data using nonparametic smoothing algorithms. The Shewhart Control Chart Method, a quantitative technique used for quality
control in industrial manufacturing processes, was used to define four types of events according to intensity and duration....
Tipo: Text
Palavras-chave: Zooplankton; Nekton; Estuary; Long-term; Disturbance.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20389/18056.pdf
Etat de la pollution par les hydrocarbures dans l'Aber Benoit
Provedor de dados: 5
Autores: Allen, G.; D'Ozouville, Laurent; L'Yavanc, Jacky.
The Aber Benoît, a small estuary on the North West coast of Brittany was polluted by oil from the Amoco Cadiz oil spill.
Preliminary results from water and sediment samples taken in the estuary in May 1978, show that two months after the initial
spill, high concentrations of hydrocarbures existed in the water and sediments of the estuary. The Aber Benoît shows a well
developed salt wedge and upstream increasing suspended sediment concentrations. Oil was dispersed more or less evenly
throughout the water column, in the entire length of the estuary. In the bottom sediments, oil had accumulated to depths of 30 cm.
Sand bars appear to induce a trapping of oil in the estuary channel.
Tipo: Text
Palavras-chave: Estuaire; Sédiment; Pollution Hydrocarbures; Estuary; Sediment; Oil spill.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00306/41721/40932.pdf
Milieux et faciès sédimentaires de la côte Nord Aquitaine
Provedor de dados: 5
Autores: Allen, G.p.
Le but de cette excursion est d'examiner les environnements sédimentaires du littoral nord - aquitain, en liaison avec la nature
géologique des dépôts s'y accumulant. La démarche proposée pour l'étude de ces milieux a pour but de dégager des modèles
sédimentaires synthétiques, englobant les relations de cause à effet entre les processus dynamiques, les apports sédimentaires et la
nature et géométrie des dépôts résultants. Ces modèles pourront ensuite être insérés dans le cadre d'une évolution géologique,
transgressive ou régressive, afin de déduire l'enchaînement stratigraphique et sédimentaire des dépôts accumulés.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00041/15185/12522.pdf
Quelques effets à long terme des aménagements sur la sédimentation dans l'estuaire de la gironde
Provedor de dados: 5
Autores: Allen, G.p.; Castaing, P.; Froidefond, J.m.; Migniot, C.
During the past 20 years, numerous sedimentological studies in the Gironde have outlined the sedimentological evolution of this
macrotidal coastal plain estuary. An ongoing study of bathymetric charts of the estuary, dating back to the 18th century have
shown the main long term impacts of man made modifications on sedimentation patterns.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-6007.pdf
Principes de gestion zonale des estuaires français
Provedor de dados: 5
Autores: Allen, G.p.; Guillaud, Jean-francois; Berquin, A.; Poupinet, P.
In numerous countries, estuaries are the site of important urban and industrial implantations. These activities provoke numerous
effluents, as well as modifications of the channels and geometry (by dredging, filling, etc ...) which have entrained important
perturbations in environmental quality.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-6011.pdf
Etude sanitaire des eaux conchylicoles de la Baie de Plouharnel (Morbihan)
Provedor de dados: 5
Autores: Allenou, Jean-pierre.
Tipo: Text
Palavras-chave: Bactérioloogie; Conchyliculture; Baie de Plouharnel; Coliformes; Salubrite.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00132/24292/22290.pdf
Echouement du TK Bremen : suivi environnemental de la contamination par les HAP en rivière
d’Etel (Morbihan)
Provedor de dados: 5
Autores: Allenou, Jean-pierre.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00149/26017/24116.pdf
Schéma de Mise en Valeur de la Mer Golfe du Morbihan - Etude de l'état trophique du Golfe du
Morbihan et croissance des huitres creuses
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Camus, Patrick; Bouget, Jean-francois; Joly, Jean-pierre.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00082/19371/16965.pdf
Evaluation de la qualité sanitaire des gisements de moules non-emergents de l'estuaire de la Loire
Octobre-Novembre 1992
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Dumont, Francoise; Menanteau, Chantal.
Les gisements de moules non-émergents de l'estuaire de la Loire sont régulièrement exploités avec une production annuelle
pouvant atteindre mille tonnes. Le caractère insalubre des gisements nécessite un traitement des moules avant la
commercialisation, reparcage ou purification en bassin. Une bonne connaissance de la qualité initiale des produis permet
d'optimiser le traitement. Cette étude, effectuée durant la campagne de pêche, a pour objectif l'estimation du niveau de salubrité
des gisements. Elle a reposé sur la recherche des germes témoins de la contamination fécale, les coliformes fécaux. La
contamination chimique a été discutée à partir des résultats obtenus dans le cadre du RNO sur les gisements de moules
découvrants de l'estuaire.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00081/19211/16806.pdf
Evaluation de la qualité des zones de production conchylicole - Département du Morbihan - Edition
2012
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Manach, Soazig.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département du Morbihan. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées.En 2011 le nombre d’alerte est resté stable avec 10
alertes de niveau 1 et une seule alerte de niveau 2 (persistance de la contamination). Il faut noter des niveaux de concentrations
particulièrement élevés, notamment sur les palourdes de la station « Port-Groix » sur la rivière de Pénerf. L’évaluation de la
qualité des...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00086/19760/17401.pdf
Evaluation de la qualité des zones de production conchylicole. Département du Morbihan. Edition
2013
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Manach, Soazig.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département du Morbihan. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées. En 2012 le nombre d’alerte a fortement augmenté
avec 17 alertes de niveau 1 et 4 alertes de niveau 2 (persistance de la contamination). Il faut noter également en 2012 des
concentrations élevées : 19 000 E.coli/100 gr de CLI sur les palourdes de la rivière d’Auray et de la rivière de Noyalo, 16 000
E.coli/100 gr de CLI...
Tipo: Text
Palavras-chave: REMI; E. Coli; Contamination bactériologique des coquillages; ROCCH; Contaminants chimiques; Milieu
marin; Classement sanitaire des zones de production; Département du Morbihan.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00149/25986/24079.pdf
Etude sanitaire du Havre du Payré (1989-1993) et qualité des coquillages commercialisés (1980-1991)
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Pezeron, Annie; Dumont, Francoise; Menanteau, Chantal.
Le Havre du Payré situé au sud des Sables d'Olonne abrite une zone ostréicole de production modeste (1 000 tonnes en 1992). Le
réseau de surveillance du milieu marin mis en place par l'IFREMER en 1989 a mis en évidence des épisodes de contamination
important sur ce site. Les niveaux atteints en 1992 ont entraîné la fermeture de la zone. Une dynamique s'est alors mise en place
entre les diverses Administrations et l'IFREMER a réalisé un suivi intensif sur les trois derniers mois de l'année 1993.
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00081/19212/16807.pdf
Le sea-beam, sondeur a faisceaux multiples du navire océanographique Jean Charcot
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Renard, Vincent.
Scientific and technical report n°37 from Centre Océanologique de Bretagne is devoted to the Sea-Beam, a multi-beam
echo-sounder installed on the B.V. JEAN CHARCOT in the spring of 1977. It describes, in general terms, the main characteri
stics as well as an evaluation of the performance and potentiel of the system. The Sea-deam is manufactured buy General
Instrument Corporation, Westwood, Massachusetts. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/rapport-4792.PDF
Etude sanitaire de la presqu'île de Quiberon - Département du Morbihan
Provedor de dados: 5
Autores: Allenou, Jean-pierre; Treguier, Cathy; Manach, Soazig; Piquet, Jean-come; Cochennec-laureau, Nathalie.
L’étude de zone de la presqu’île de Quiberon (56-07-01) a été menée, à la demande des pêcheurs professionnels, afin de classer
cette zone de gisement naturel d’huîtres. Une étude de dossier a été réalisée afin de recenser les principales sources de
contamination. Celles-ci sont essentiellement d’origine anthropique, avec la présence de nombreux émissaires d’eaux pluviales,
d’un poste de relèvement, et la proximité d’un important port de plaisance (Port Haliguen, 1180 emplacements). Des prélèvements
d’huîtres ont été réalisés d’août 2013 à septembre 2014 avec une fréquence bimensuelle. Les résultats des analyses
microbiologiques (indicateur Escherichia coli) permettent d’estimer la qualité de la zone de production à B au regard des critères
du règlement CE...
Tipo: Text
Palavras-chave: Coli; Contamination bactériologique des coquillages; Contaminants chimiques; Milieu marin; Étude de zone;
Département du Morbihan.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00256/36710/35322.pdf
Chemical composition of corals in Saudi Red Sea Coast
Provedor de dados: 5
Autores: Al-lihaibi, Ss; Al-sofyani, Aa; Niaz, Gr.
Three species of corals Stylophora pistillata, Lobophyllia corymbosa and Echinopora gemmacea were collected from Sharm
Obhur to study their chemical composition. This information was important in the investigation of their metabolic pathways and
their mode of feeding. The concentrations of amino acids in these species were 9.37, 21.35 and 3.09 mg.g(-1) dry weight of coral
respectively. Plant pigments were highest in E. gemmacea followed by S. pistillata and then by L. corymbosa. Lipid
concentrations in S. pistillata, L. corymbosa and E. gemmacea were 1.90, 8.58 and 1.32 mg.g(-1) of total coral respectively. The
fatty acid methyl esters were analyzed in these species and the most abundant saturated acids were 16:0 and 18:0, while
unsaturated acids included...
Tipo: Text
Palavras-chave: Corail; Composition chimique; Nutrition; Reef coral; Chemical composition; Nutrition.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00326/43671/43199.pdf
Automate programme de distribution de granules secs, effet de la fragmentation de rations
journalières sur le bar (dicentrarchus labrax)
Provedor de dados: 5
Autores: Alliot, A.; Febvre, A.; Marquet, R.; Metailler, R.; Pastoureaud, A.
The experimental study of marine animal nutrition raises a number of technical issues, especially that of food distribution, when it
is supplied in the form of pellets with a low water content. Hand feeding has different disadvantages. Farmers have indeed to
supply an increasing number (for experimental purposes) of batches, several times per day and at regular intervals, with various
types of food of well-defined quantities. Thus, many hours are dedicated each day to feeding. Moreover, the large number of
interventions implied influences the fishes' behaviour.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-5997.pdf
Besoins nutritifs du bar (dicentrarchus labrax l.) Etude du taux de protéine et du taux de lipide dans
le régime
Provedor de dados: 5
Autores: Alliot, E.; Febvre, A.; Metailler, R.; Pastoureaud, A.
Le Bar, appelé Loup en Méditerranée, est un poisson téléostéen très apprécié et recherché sur le marché ; sa pêche est relativement
peu abondante et l'élevage d'une telle espèce paraît prometteuse. L'acclimatation en bacs et l'adaptation aux conditions d'élevage
sont facilement réalisables. D'autre part, la reproduction contrôlée de cet animal peut être considérée comme pratiquement
dominée. Il devient donc urgent d'approfondir nos connaissances sur ce poisson, surtout quant à ses besoins nutritifs, pour obtenir
une croissance rapide en élevage.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-5996.pdf
Evolution des activités enzymatiques dans le tube digestif au cours de la vie larvaire du bar
(Dicentrarchus labrax). Variations des protéinogrammes et des zymogrammes
Provedor de dados: 5
Autores: Alliot, E.; Pastoureaud, Annie; Trellu, J.
The development of the digestive system of larvae of Dicentrarahus labrax has been studied. The changes in activities of digestive
enzymes from hatching to 30 days have been investigated. 8 activities have been recorded : esterases, a-glucosidase, trypsin,
chymotryp-sin, leucinaminopeptidase, alkalin and acid phosphatase, using polyacrylamid gel electropho-resis. All the activities
are very weak at hatching j the activities of trypsin, a-glucosidase, alkalin phosphatase increase between 0 and 5 days, decrease
slowly and are quite stable from 15 to 30 days. The other activities increase steadily from 0 to 20 days. Relationships between the
developmental process of the digestive system and changes in activities are investigated.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41619/40828.pdf
Speciation in Cyprinidae of the Iberic Peninsula.
Provedor de dados: 5
Autores: Almaca, Carlos.
Coming from Oriental Asia and Siberia, the Cyprinidae reached the Iberic Peninsula probably at the end of the Oligocene. Their
populations bore speciation processes which led to the formation of a fauna rich in endemic species and subspecies. Populations of
two of the genera Barbus and Pseudophoxinus reached Northwestern African forming there several endemic species. Concerning
the speciation forms, it is probable that the allopatric form, whether by foundation effect or by subdivision, played an important
part. Pyrenees and Mediterranean Sea settled probably efficient barriers for the Iberic Cyprinidae isolation. The present
geographical repartition of Cyprinidae in Iberic Peninsula suggests that altitude lines and glaciations which reached the north of...
Tipo: Text
Palavras-chave: Portugal; Spain; Cyprinidae; Biogeography; Speciation.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-1997.pdf
Diagnostic quantitatif de Perkinsus atlanticus (Apicomplexa, Perkinsea) chez les palourdes Ruditapes
decussatus et Ruditapes philippinarum
Provedor de dados: 5
Autores: Almeida, Manuela.
Le protozoaire parasite Perkinsus atlanticus (Azevedo, 1989) est une des causes des chutes de production de palourdes Ruditapes
decussatus et R. philippinarum cultivées au Portugal, en Espagne et en Italie. Des modèles d'infection de Perkinsus ont été
réalisés, par reproduction expérimentale de la maladie, pour étudier le rôle de la densité des palourdes, de la température et de la
salinité sur le déroulement de la Perkinsiose. L'objectif de ce travail a été de développer une technique de diagnostic quantitative
pour optimiser l'évaluation de l'intensité d'infection et détecter de faibles infections des palourdes par P. atlanticus. Le principe de
cette technique consiste à cultiver tous les tissus de la palourde en milieu thioglycolate, suivi d'une lyse à...
Tipo: Text
Palavras-chave: Pathologie; Protozoaire; Parasite; Perkinsus atlanticus; Bivalvia; Ruditapes decussatus; Ruditapes
philippinarum; Diagnostic.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00033/14416/11710.pdf
Origine et rôle du néphéloïde profond dans le transfert des particules au milieu marin. Application au
Golfe du Lion
Provedor de dados: 5
Autores: Aloisi, Jc; Cambon, Jp; Carbonne, J; Cauwet, G; Millot, C; Monaco, A; Pauc, H.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00121/23188/21033.pdf
Etude biometrique et remarques concernant la population de Raja clavata Linne, 1758 du plateau
continental casablancais (Maroc atlantique)
Provedor de dados: 5
Autores: Aloncle, Henri.
During the hypotremata (l) study undertaken while we were in Morocco (1959-1967), we happened upon large batches of Raja
clavata Linné, 1758. The abundance of the material thus made available to us prompted us to study a little more closely this
species that is very widely dominant between -150 and -200m on the Casablanca continental shelf.
Tipo: Text
Palavras-chave: Casablanca; Continental shelf; Raja clavata; Biometry; Accroissement; Maroc atlantique; Hypotremata; Raja
clavata; Etude biometrique.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-1942.pdf
Prospection germonière dans l'ouest Atlantique et le large des côtes française - 12 juillet - 11 août et 2
- 29 août 1979
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
Depuis plus de dix ans, le secteur Atlantique compris entre l'archipel des Açores et le continent européen a fait l'objet d'un certain
nombre de campagnes systématiques dont les résultats ont abouti à une meilleure connaissance de la répartition et des voies de
migration du germon en surface dans cette zone de l'Atlantique, tout en permettant d'étendre le secteur d'action des pêcheurs
français.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-7169.pdf
Recherches sur le germon - Campagnes 1978 de l'I.S.T.P.M. dans l'Atlantique nord
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
En 1978, l'I.S.T.P.M. a effectué trois campagnes thonières consacrées à la recherche du germon. Les deux premières campagnes
ont été des missions traditionnelles de guidage de la flottille sur les lieux de pêche connus ; la troisième mission avait un caractère
exploratoire, il s'agissait de prospecter les secteurs sud et est du Grand Banc de Terre-Neuve, à la limite des eaux thermiquement
favorables.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-7157.pdf
Rythmes alimentaires et circadiens chez le germon thunnus alalunga (bonnaterre 1788)
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
During fishing campaigns for tuna on board the ship La Pélagia in 1968 and 1969 in the Atlantic, between the Gulf of Gascony,
the southwest of Ireland and the Azores, the stomachs of caught tunny and those of tunny unsuitable for marking were sampled in
order to study their contents at a later time. This study aimed to clarify certain problems relating to tunny feeding and we were
able to highlight an endogenous diurnal rhythm in the white tuna's feeding, which is a new contribution to our knowledge about
the biology of this fish. Currently, in fact, the problem of tuna feeding is still poorly understood; whereas the bibliography in this
area is relatively rich, it is most often limited to lists of wildlife reports. In 1932 and 1940, R. LEGENDRE did an...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-3136.pdf
Recherches sur le germon (Campagnes 1969 de "La Pélagia")
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
En 1969, l'Institut Scientifique et Technique des Pêches Maritimes a poursuivi les recherches commencées en 1967 à bord de "La
Pélagia" sur la présence du germon dans l'Atlantique N.E.
:
Les travaux entrepris cette année portaient sur trois points principaux
Examen de la situation hydrologique de divers secteurs, en vue de rechercher les zones favorables à la concentration du
poisson ;
Opérations de marquage pour l'étude de la croissance, des migrations, des stocks de germons ;
Prélèvement
d'estomacs destinés à la poursuite de travaux entrepris en 1968, concernant les phases d'activité nutritionnelle du germon au cours
d'une journée. Trois campagnes ont été effectuées à bord de "La Pélagia" :
compris...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-6996.pdf
Du 3 juin au 10 juillet, examen d'un secteur
Populations, croissance et migration du germon Thunnus alalunga dans le nord-est atlantique. Essai
de synthese
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
As a result of 5 years of sampling the following results were reached: (1) so far as growth was concerned 3 size groups were
recognised during June-July. The `classic' type measuring similar to 52-62 cm, a group ranging from 54-55 cm and a 3rd group
measuring 64-65cm. By marking the fish and by studying the degree of distribution of the stomach parasite, H.fusca it was noted
that the albacore entering the north east Atlantic during summer constitute a heterogenous population migrate along the same
route upto the north west boundary of Cape Finisterre. Thereafter they diverge, one group forming a semi-circle along the Bay of
Biscay, another moving northwards and on reaching the south of Ireland bends westward.
Tipo: Text
Palavras-chave: North east Atlantic; Growth; Polution dynamique; Migration; Thunnus alalunga.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-2227.pdf
Recherches sur le germon - Campagnes 1973 de l'I.S.T.P.M. dans l'Atlantique N.-E.
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
Après le succès de la campagne de 1972 au large de l'archipel des Açores au cours de laquelle 4344 tonnes de germons avaient été
débarquées à la date du 31 juillelt, soit 53% des apports totaux de la saison de pêche, il était normal de penser qu'en 1973, la
majeure partie de la flottille se dirigerait vers ces parages dès les premiers jours du mois de juin. C'est la raison pour laquelle il
avait été décidé qu'une première campagne de prospection en direction de l'ouest et du sud-ouest des Açores serait effectuée à
bord du navire école de la Marine Marchande "La Perle", dans le courant de la seconde quinzaine de mai.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/publication-7100.pdf
Recherches sur le Germon - Campagne 1974 de "La Pelagia" aux Açores et premières observations
sur le rendement des engins
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
Pour les professionnels, la campagne germonière 1974 a commencé, comme en 1973, dans les parages des Açores. Pour la
troisième fois depuis 1972, les conditions hydrologiques rencontrées en ce début de campagne ont été différentes de ce qui avait
été observé les années précédentes, mais aussi pour la première fois, les conditions météorologiques rencontrées au cours de la
seconde quinzaine de juin auront été fort médiocres sinon franchement mauvaises.
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-7106.pdf
Donnees nouvelles sur le germon Thunnus alalunga Bonnaterre 1788 dans le Nord-Est Atlantic. 2eme
partie. Les populations de germons Thunnus alalunga dans le Nord-Est Atlantique.
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
In this, the 2nd part of a study of Thunnus alalunga in the north-east Atlantic, populations and migrations are considered. The term
'population' is defined. The utilization of H. fusca as a biological 'marker' is considered and tagging experiments are described.
Modal classes are examined: summary analysis, detailed analysis of fisheries. Internal temps and regulation are studied. The types
of watering are defined and described and a statistical analysis as a function of the watering is made. An attempt at synthesis is
made: Azorian, standard. Migratory determinism is examined.
Tipo: Text
Palavras-chave: ANE; Thunnus alalunga; Population structure; Tagging; Migrations; Ecological distribution.
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/publication-2043.pdf
Recherches sur le germon - Campagne 1972 de "La Pelagia" aux Açores
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
La première campagne de "La Pelagia" sur le germon (26 mai au 20 juillet 1972) a été presque entièrement consacrée au secteur
des Açores. Elle est l'aboutissement des recherches effectuées les années précédentes qui avaient permis à "La Pelagia" en 1971 de
détecter une très importante pêcherie de germons au NO de l'archipel açorien.
Tipo: Text
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-7087.pdf
Recherches sur le germon - Campagnes 1970 de "La Pelagia"
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
De nombreuses campagnes de recherches sur les thonidés et plus particulièrement sur le germon ont été faites depuis 1950. Elles
ont d'ailleurs donné lieu à diverses publications et notamment à l'établissement d'une carte montrant l'apparition et les
déplacements du germon en début de campagne.
Ces recherches ont été reprises systématiquement en 1967 après la mise en
service de "La Pelagia", navire spécialement équipé pour cette étude. Les travaux entrepris à bord se situent sur trois plans :
a)
aide directe à la pêche par la recherche des concentrations de thons, ces prospections s'effectuent essentiellement à partir de
l'examen des conditions hydrologiques des secteurs étudiés ; b) marquages systématiques des thons blancs et, éventuellement,
des...
Tipo: Text
Ano: 1971
URL: http://archimer.ifremer.fr/doc/1971/publication-7005.pdf
Recherches sur le germon, Thunnus alalunga. Donnees complementaires et nouvelles.
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
The trophodynamic cycle and growth of the albacore was studied. The different age forms are discussed in relation to various
growth hypotheses, in particular the Walford method and the Harding-Chap-man method. Behaviour during capture is also
discussed, particularly during troll line fishing, and its reaction to the bait.
Tipo: Text
Palavras-chave: ANE; Europe; Biscay Bay ANE; Atlantic; Azores Thunnus alalunga Growth Trophodynamic cycle Feeding
behaviour.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2020.pdf
Donnees nouvelles sur le germon Thunnus alalunga Bonnaterre 1788 dans le Nord-Est Atlantique.
1iere partie. Rythmes alimentaires et circadiens chez legermon Thunnus alalunga dans le nord-est
Atlantique.
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis.
This work is divided into 4 parts. First, in a broad introduction, a short history is given on albacore fishing in the bay of Biscay
from its origin until its present extension in the neighbourhood of the Acores. This is followed by a history of the research
beginning with the first attempts at classifying the albacore and then with the first investigations done on research ships; then the
authors explain the reasons and the evolution of their work with reference to what was already known. The 2nd part of the study
describes the campaigns of research from 1967 to 1972 to study the albacore in the north east Atlantic and the fishing and
prospecting techniques used during these campaigns. The 3rd part of this investigation shows the research works sensu...
Tipo: Text
Palavras-chave: ANE; Thunnus alalunga; Catching methods; Feeding behaviour; Biological rhythms; Ecology.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-2075.pdf
Campagne de recherche et de prospection germonière en 1976
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis; Porche, P; Guerault, D; Le Men, R.
Au cours de la campagne germonière 1976, le N/O "La Pelagia" a effectué deux missions de prospection entre les côtes françaises
et les Açores. Une troisième mission réalisée dans le S/W Irlande et le golfe de Gascogne clôturait les campagnes de recherches et
de prospection consacrées au germon au cours de l'année.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-7127.pdf
Recherches sur le germon - Campagne 1971 de "La Pelagia"
Provedor de dados: 5
Autores: Aloncle, Henri; Delaporte, Francis; Porche, Pierre.
Pour la cinquième année consécutive, "La Pelagia" a entrepris, en 1971, deux campagnes estivales consacrées à des travaux de
recherches et de prospection sur le germon. La première campagne a débuté le 26 mai, pour se terminer le 9 juillet. Les régions
prospectées englobaient le secteur cap St-Vincent-Açores, le voisinage de ces îles et une vaste région s'étendant en arc de cercle
de l'île de Sao Miguel à l'entrée du golfe de Gascogne. La seconde campagne comprise entre le 16 août et le 25 septembre, a eu
pour cadre le golfe de Gascogne. Des circonstances météorologiques défavorables ne nous ont pas permis, dans le temps qui nous
était fixé, d'étendre nos activités jusqu'aux 25° ouest, comme le prévoyait notre plan de travail initial.
Tipo: Text
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-7016.pdf
Recherches thonières de l'I.S.T.P.M. dans l'Atlantique nord-est
Provedor de dados: 5
Autores: Aloncle, Henri; Guerault, D; Le Men, R; Porche, P; Delaporte, Francis; Cadiou, Y.
Au cours de la saison de pêche germonière 1977, des travaux de prospection, d'assistance scientifique et de recherches ont été
organisés, couvrant tout le secteur compris entre le sud-ouest Irlande et l'archipel canarien. Aux campagnes de prospection
maintenant habituelles de "La Pélagia", s'ajoutait, cette année, une campagne exploratoire de la "Thalassa" dans le sud-ouest
Açores - nord-ouest Canaries. Les objectifs poursuivis au cours de ces différentes missions, outre l'exploration de secteurs
nouveaux, concernaient à la fois l'information des professionnels et la poursuite de travaux antérieurs tels que marquages et études
de leurres.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-7142.pdf
Climatic variability in the vicinity of Wallis, Futuna, and Samoa islands (13 degrees-15 degrees S, 180
degrees-170 degrees W)
Provedor de dados: 5
Autores: Alory, G; Delcroix, T.
h-lean conditions, seasonal, and ENSO-related (El Nine Southern Oscillation) variability in the vicinity of Wallis, Futuna, and
Samoa islands (13 degrees-15 degrees S, 180 degrees-170 degrees W) over the 1973-1995 period are analysed for wind
pseudostress, satellite-derived and in situ precipitation, sea surface temperature (SST) and salinity (SSS), sea level, and 0-450 m
temperature and geostrophic current. The mean local conditions reflect the presence of the large scale features such as the western
Pacific warm pool, the South Pacific Convergence Zone (SPCZ), and the South Pacific anticyclonic gyre. The seasonal changes
are closely related to the meridional migrations of the SPCZ, which passes twice a year over the region of study. During the warm
phase...
Tipo: Text
Palavras-chave: Wallis et Futuna; Samoa; El Niño Oscillation Australe; Variabilité climatique; Wallis and Futuna; Samoa; El
Nino Southern Oscillation; Climatic variability.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43608/43913.pdf
Seasonal dynamics of sea surface salinity off Panama: The Far Eastern Pacific fresh pool
Provedor de dados: 5
Autores: Alory, Gael; Maes, Christophe; Delcroix, Thierry; Reul, Nicolas; Illig, Serena.
The freshest surface waters in the tropical Pacific are found at its eastern boundary. Using in situ observations, we depict the
quasi-permanent presence of a far eastern Pacific fresh pool with Sea Surface Salinity (SSS) lower than 33, which is confined
between Panama's west coast and 85W in December and extends westward to 95W in April. Strong SSS fronts are found at the
outer edge of this fresh pool. We investigate the seasonal dynamics of the fresh pool using complementary satellite wind, rain, sea
level and in situ oceanic current data at the surface, along with hydrographic profiles. The fresh pool appears off Panama due to
the strong summer rains associated with the northward migration of the ITCZ over Central America in June. During the second
half...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00072/18311/16581.pdf
Application of a new algorithm using Doppler information to retrieve complex wind fields over the
Black Sea from ENVISAT SAR images
Provedor de dados: 5
Autores: Alpers, Werner; Mouche, Alexis; Horstmann, Jochen; Ivanov, Andrei Yu.; Barabanov, Vladyslav S.
Several algorithms have been proposed to retrieve near-surface wind fields from C-band synthetic aperture radar (SAR) images
acquired over the ocean. They mainly differ in the way they retrieve the wind direction. Conventionally, the wind direction is
taken from atmospheric models or is extracted from the linear features sometimes visible in SAR images. Recently, a new wind
retrieval algorithm has been proposed, which also includes the Doppler shift induced by motions of the sea surface. In this article,
we apply three wind retrieval algorithms, including the one using Doppler information, to three complex wind events encountered
over the Black Sea and compare the SAR-derived wind fields with model wind fields calculated using the high-resolution
weather...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00253/36390/35443.pdf
Influence de la densité d'élevage sur la croissance et la qualité de l'huître creuse Crassostrea gigas
dans l'étang de Thau
Provedor de dados: 5
Autores: Alunno Bruscia, Marianne; Vercelli, Catherine; Chabirand, Jean-michel; Oheix, Jocelyne; Buestel, Dominique.
We grew Pacific oysters (Crassostrea gigas) in a French Mediterranean coastal breeding area, the Thau lagoon, to examine the
influence of stocking density on their growth and quality (i.e. condition index and biochemical composition). Oysters were reared
on ropes suspended on a culture table for 15 months between March 1999 to June 2000 at 8 different densities involving two cross
factors: the number of ropes per square (NR, i.e. 30, 50,65 and 100 ropes) and the number of oysters per rope (NO, i.e. 78 and 120
oysters). Environmental variables (temperature, salinity, dissolved O2) and trophic conditions (chlorophyll a, suspended
particulate matter) were estimated fortnightly to characterise conditions prevailing inside as well as around the experimental...
Tipo: Text
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00039/15029/12363.pdf
Shell allometry and length-mass-density relationship for Mytilus edulis in an experimental
food-regulated situation
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Bourget, Edwin; Frechette, Marcel.
We examined the influence of food availability and population density on the morphometry and shell length body mass
relationship of Mytilus edulis. Mussels were reared in the laboratory for 22 mo at 8 different density levels in 11 chambers
supplied with natural seston at 2 different concentrations. This allowed us to assess separately the effects of food availability and
mussel density. The shell length/width and shell height/width ratios were affected by food, density and time. Mussels tended to be
narrower (flatter) at high density and at low food level. Therefore, narrow shells could result from reduced food concentration in
high density situations without implying physical interference. Shell mass was also influenced by both food and density levels,...
Tipo: Text
Palavras-chave: M N curve; Length mass density relationship; Food regulation; Shell allometry; Mussels.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-807.pdf
A single bio-energetics growth and reproduction model for the oyster Crassostrea gigas in six Atlantic
ecosystems
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Bourles, Yves; Maurer, Daniele; Robert, Stephane; Mazurie, Joseph; Gangnery, Aline;
Goulletquer, Philippe; Pouvreau, Stephane.
Many studies based on bioenergetics growth models have investigated the effects of environmental factors on oyster (Crassostrea
gigas) growth and physiology. However, most of these models are site-specific and cannot be applied to other culture sites without
the re-estimation of parameters or re-formulation of some processes. We aimed to develop a generic growth model suitable for
application in contrasting environments, with a constant set of parameters. We tested the oyster-DEB model (Bourlès et al. 2009)
for the stimulation of C. gigas growth in different cohorts (spats and adults) at major shellfish culture sites in France, in several
years: Arcachon (1993–1994); Marennes-Oléron (2007); Quiberon (1999, 2000, 2001); Rade de Brest (2008); Baie du...
Tipo: Text
Palavras-chave: DEB theory; Modelling; Bivalves; Crassostrea gigas; Phytoplankton; Temperature effect; Coastal environment.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15403/12762.pdf
Body size-density relationship for Mytilus edulis in an experimental food-regulated situation
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Petraitis, P; Bourget, E; Frechette, Marcel.
We grew mussels (Mytilus edulis) under two different food regimes and eight population density levels to estimate the joint
effects of density and biomass on their growth and survival and to determine the shape of the biomass-density (B-IV) relationship.
Mussels were reared for 22 months, between December 1994 and October 1996, in 1-L experimental chambers supplied with
natural seston. Growth in shell length, individual wet mass and ash free dry mass (m) decreased with decreasing food availability
and increasing population density. Survival was negatively correlated with density but did not differ significantly between food
regimes during the first year. Variations in concentration of available food did not alter the effects of crowding on mussels, as...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-6791.pdf
Growth of blue mussels in a Norwegian and French culture site: comparison of food proxies with
Dynamic Energy Budgets (DEB)
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Rosland, Rune; Strand, Øivind; Naustvoll, Lars; Robert, Stephane; Bacher, Cedric.
Introduction The blue mussel (Mytilus edulis) culture occurs in temperate waters around the world under a wide range of
environmental conditions, e.g. at phytoplankton concentrations below as 1-2 µg L-1 (in Norwegian fjords) up to 9-10 µg L-1 (in
French Atlantic coastal sites). Under such contrasted food resources, the aim of our study is to develop a generic bio-energetic
model for M. edulis, i.e. that can be applied in various contrasted environments with a constant set of parameters, to simulate
growth and reproduction of the blue mussel. Such a model will allow us to assess directly the links between mussel growth
performances and environmental parameters in different culture sites.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14362/11664.pdf
The AquaDEB project: Physiological flexibility of aquatic animals analysed with a generic dynamic
energy budget model (phase II)
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Van Der Vee, Henk W.; Kooijman, S. A. L. M.
This second special issue of the Journal of Sea Research on development and applications of Dynamic Energy Budget (DEB)
theory concludes the European Research Project AquaDEB (2007–2011). In this introductory paper we summarise the progress
made during the running time of this 5 years’ project, present context for the papers in this volume and discuss future directions.
The main scientific objectives in AquaDEB were (i) to study and compare the sensitivity of aquatic species (mainly molluscs and
fish) to environmental variability within the context of DEB theory for metabolic organisation, and (ii) to evaluate the
inter-relationships between different biological levels (individual, population, ecosystem) and temporal scales (life cycle,
population...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00044/15497/14508.pdf
The AquaDEB project (phase I): Analysing the physiological flexibility of aquatic species and
connecting physiological diversity to ecological and evolutionary processes by using Dynamic Energy
Budgets
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Van Der Veer, Henk W.; Kooijman, Sebastiaan A.l.m.
The European Research Project AquaDEB (2007– 2011, http://www.ifremer.fr/aquadeb/) is joining skills and expertise of some
French and Dutch research institutes and universities to analyse the physiological flexibility of aquatic organisms and to link it to
ecological and evolutionary processes within a common theoretical framework for quantitative bioenergetics [Kooijman,
S.A.L.M., 2000. Dynamic energy and mass budgets in biological systems. Cambridge University Press, Cambridge]. The main
scientific objectives in AquaDEB are i) to study and compare the sensitivity of aquatic species (mainly molluscs and fish) to
environmental variability of natural or human origin, and ii) to evaluate the related consequences at different biological levels
(individual,...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6762.pdf
Tide and surge dynamics along the Iberian Atlantic coast
Provedor de dados: 5
Autores: Alvarez Fanjul, E; Perez Gomez, B; Carretero, Jc; Rodriguez Sanchez Arevalo, I.
The eastern Atlantic barotropic dynamics (in a region spanning from 20 degrees N to 48 degrees N and 34 degrees W to 0
degrees) are studied through numerical modelling and in situ measurements. The main source of data is the tidal gauge network
REDMAR, managed by Clima Maritimo (Puertos del Estado). The numerical model employed is the HAMSOM, developed both
by the Institut fur Meereskunde (Hamburg University) and Clima Maritime. In this paper, tidal and storm surge dynamics are
studied for the region, focusing particularly on the nonlinear transfer of energy between the different forcings. The results of tidal
simulations show good agreement between semidiurnal harmonic components and the values obtained from the tidal gauges (both
coastal and pelagic) and...
Tipo: Text
Palavras-chave: Onde de marée; Marée; Vague; Couplage; Réseau de marégraphie REDMAR; Surge; Tide; Wave; Model
coupling; Tide gauge network REDMAR.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00326/43674/43197.pdf
Mineralization of biogenic materials in the water masses of the South Atlantic Ocean. I: assessment
and results of an optimum multiparameter analysis
Provedor de dados: 5
Autores: Alvarez, M.; Brea, S.; Mercier, Herle; Alvarez-salgado, X. A.
This is the first of two manuscripts dealing with the circulation, mixing, ventilation and organic matter mineralization of the South
Atlantic Ocean (SAO). The present work quantifies the complex mixing of water masses in the SAO using a constrained,
least-squares regression, Optimum MultiParameter (OMP) analysis. The OMP based on temperature, salinity, silicate and the
conservative parameter NO, was applied on two World Ocean Circulation (WOCE) lines, A17 and A14, in the western and
eastern SAO, respectively. The constrained OMP sensitivity to sources of error in the end-member characteristics, measured
parameters, equation weights and oxygen to nitrogen mineralisation ratio (RN) was carefully assessed using perturbation tests.
Perturbation of RN was the...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28178/26414.pdf
Air-sea CO2 fluxes in a coastal embayment affected by upwelling: physical versus biological control
Provedor de dados: 5
Autores: Alvarez, M; Fernandez, E; Perez, Ff.
Water column pCO(2) and air-sea CO2 fluxes were studied during an 18-month period (May 1994-September 1995) in a coastal
embayment affected by upwelling, located in the northwestern Iberian Peninsula (Ria de Vigo and adjacent shelf). Overall, the
region acted as a net annual atmospheric CO, sink, with magnitude ranging from 0.54 mgC m(-2) d(-1) in the Ria estuary to 22
mgC m(-2) d(-1) offshore. During moderate upwelling and upwelling relaxation conditions the sampling area was a sink for
atmospheric CO2. By contrast, during winter conditions and during intense upwelling the flux reversed towards the atmosphere.
The relative influence of physical and biological processes on pCO(2) was evaluated using two different approaches: firstly,
statistical analysis...
Tipo: Text
Palavras-chave: Dioxyde de carbone; Échange air-mer; Variabilité spatiale-temporelle; Contrôle physique-biologique;
Nord-ouest de la péninsule Ibérique; Carbon dioxide; Air-sea exchange; Spatial-temporal variability; Physical-biological control;
Northwestern Iberian Peninsula.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43599/43983.pdf
Uncoupled transport of chlorofluorocarbons and anthropogenic carbon in the subpolar North
Atlantic
Provedor de dados: 5
Autores: Alvarez, Marta; Gourcuff, Claire.
Chlorofluorocarbon (CFC) 11 and 12 transports across the transoceanic World Ocean Circulation Experiment (WOCE) A25
section in the subpolar North Atlantic are derived from an inverse model using hydrographic and ADCP data (Lherminier et al.,
2007). CFC and anthropogenic carbon (C-ANT) advective transports contrary to expected are uncoupled: C-ANT is transported
northeastwards (82 +/- 39 kmol s(-1)) mainly within the overturning circulation, while CFC-11 and CFC-12 are transported
southwestwards (-24 +/- 4 and -11 +/- 2 mol s(-1), respectively) as part of the large-scale horizontal circulation. The main reason
for this uncoupled behaviour is the complex CFC vs. C-ANT relation in the ocean, which stems from the contrasting temperature
relation for both...
Tipo: Text
Palavras-chave: Anthropogenic carbon; CFC; Advective transports; Subpolar North Atlantic.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00009/11994/9039.pdf
New insights on the mineralization of dissolved organic matter in central, intermediate, and deep
water masses of the northeast North Atlantic
Provedor de dados: 5
Autores: Alvarez-salgado, X. A.; Nieto-cid, M.; Alvarez, M.; Perez, F; Morin, P; Mercier, Herle.
An optimum multiparameter (OMP) analysis was applied to samples collected during a cruise in the northeast North Atlantic with
the aim of objectively defining water mass realms and calculating water mass mixing-weighted average (archetypal)
concentrations of dissolved organic carbon (DOC) and nitrogen (DON) and fluorescent dissolved organic matter (FDOM). The
profile of archetypal DOC, which retains the basin-scale variability from the formation area of the water masses to the study area,
was modeled with a constant initial concentration of 60 +/- 1 mu mol kg(-1) that decreased linearly with increasing apparent
oxygen utilization (AOU) at a rate of -0.20 +/- 0.03 mol C per mol of AOU. The archetypal C:N ratio of dissolved organic matter
was also modeled...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00139/24979/23060.pdf
Hydrological Structure, Circulation and Water Mass Transport in the Gulf of Cadiz
Provedor de dados: 5
Autores: Alves, Jose Miguel Rodrigues; Carton, Xavier; Ambar, Isabel.
Hydrological and LADCP data from four experiments at sea (Semane 1999, 2000/1 2000/3, 2001) are used to describe the
structure and circulation of Mediterranean Water in the Gulf of Cadiz. These data were gathered on meridional sections along
8?20′W and 6?15′W and between these longitudes on a zonal section along 35?50′N. The mesoscale and the submesoscale
structures (Mediterranean Water Undercurrents, meddies, cyclones) observed along these sections are characterized in terms of
thermohaline properties and of velocity. The transports of mass and salt in each class of density (North Atlantic Central Water,
Mediterranean Water, North Atlantic Deep Water) are computed with an inverse model. The model indicates a general eastward
flux in the Central Water...
Tipo: Text
Palavras-chave: Mediterranean Water; Gulf of Cadiz; Hydrology; Water Masses; Regional Scale Circulation; Inverse Model;
Transport.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00129/24005/21961.pdf
Blastodinium spp. infect copepods in the ultra-oligotrophic marine waters of the Mediterranean Sea
Provedor de dados: 5
Autores: Alves-de-souza, C.; Cornet, C.; Nowaczyk, A.; Gasparini, S.; Skovgaard, A.; Guillou, L.
Blastodinium are chloroplast-containing dinoflagellates which infect a wide range of copepods. They develop inside the gut of
their host, where they produce successive generations of sporocytes that are eventually expelled through the anus of the copepod.
Here, we report on copepod infections in the oligotrophic to ultra-oligotrophic waters of the Mediterranean Sea sampled during
the BOUM cruise. Based on a DNA-stain screening of gut contents, 16% of copepods were possibly infected in samples from the
Eastern Mediterranean infected, with up to 51% of Corycaeidae, 33% of Calanoida, but less than 2% of Oithonidae and
Oncaeidae. Parasites were classified into distinct morphotypes, with some tentatively assigned to species B. mangini, B.
contortum, and B. cf....
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00133/24387/22424.pdf
Significance of Plankton Community Structure and Nutrient Availability for the Control of
Dinoflagellate Blooms by Parasites: A Modeling Approach
Provedor de dados: 5
Autores: Alves-de-souza, Catharina; Pecqueur, David; Le Floc'H, Emilie; Mas, Sebastien; Roques, Cecile; Mostajir, Behzad;
Vidussi, Franscesca; Velo-suarez, Lourdes; Sourisseau, Marc; Fouilland, Eric; Guillou, Laure.
Dinoflagellate blooms are frequently observed under temporary eutrophication of coastal waters after heavy rains. Growth of
these opportunistic microalgae is believed to be promoted by sudden input of nutrients and the absence or inefficiency of their
natural enemies, such as grazers and parasites. Here, numerical simulations indicate that increasing nutrient availability not only
promotes the formation of dinoflagellate blooms but can also stimulate their control by protozoan parasites. Moreover, high
abundance of phytoplankton other than dinoflagellate hosts might have a significant dilution effect on the control of dinoflagellate
blooms by parasites, either by resource competition with dinoflagellates (thus limiting the number of hosts available for...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38478/36938.pdf
Apport à la connaissance de la paléohydrologie de l'Atlantique nord-oriental pendant le Quaternaire
terminal
Provedor de dados: 5
Autores: Alvinerie, J; Caralp, M; Latouche, C; Moyes, J; Vigneaux, M.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00123/23411/21238.pdf
Évaluation des risques dus à l'emploi des peintures anti-salisures dans les zones conchylicoles
Provedor de dados: 5
Autores: Alzieu, Claude.
Afin de protéger la coque des navires contre l'attaque de prédateurs, la carène reçoit un revêtement de finition dont le rôle est
d'éviter la fixation d'organismes divers : algues, mollusques ... . Les produits utilisés pour ce traitement, communement dénommés
"peintures anti-salissures" ou "anti-fouling", contiennent des substances toxiques qui se dissolvent peu à peu dans l'eau en
constituant au voisinage de la carène une barrière défavorable à la survie des organismes. Cette pratique a pour conséquence
l'introduction dans le milieu marin, de manière diffuse et chronique, de substances toxiques dont l'influence sur les biotopes a été
très peu étudiée. On peut donc se demander si l'emploi des peintures anti-salissures ne risque pas d'entraîner des...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00046/15681/13083.pdf
Choix de products pour lutter contre la pollution du milieu marin par les hydrocarbures. III. Toxicite
relative de produits a antipetrole sur deux organisme marins.
Provedor de dados: 5
Autores: Alzieu, Claude.
The necessity to combat oil slicks makes it necessary to assess the relative effectiveness and toxicity of dispersal agents used. This
is usually done by using individual or groups of indicator organisms. The theory behind the various approaches is outlined, and
some considerations are listed for the choice of technique. 2 organisms were chosen - the Portuguese oyster (Crassostrea), and the
phytoplankton alga Phaeodactylum tricornutum Bohlin, on which if feeds - and the oyster closing reaction, and level of inhibition
of growth under the influence of irritant products was measured. Methods are described, and the results shown for emulsifying,
agglomerating and precipitating products. The results are discussed, and the mode of interference of the products...
Tipo: Text
Palavras-chave: Choice of technique; Phytoplankton; Organisms; Toxicity; Oil spills; Pollution.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2073.pdf
La coquille Saint-Jacques Pecten maximus, témoin de contamination des eaux littorales par les
polychlorobiphenyls
Provedor de dados: 5
Autores: Alzieu, Claude.
En raison de leur pouvoir de filtration élevé, les mollusques bivalves sédentaires, tels que moules et huîtres, sont d'excellents
indicateurs de la contamination du littoral marin par les micropolluants rémanents. Du fait de leur très large distribution sur les
côtes européennes, les moules, Mytilus edulis en Atlantique et Mytilus galloprovincialis en Méditerranée, sont à la base de
l'échantillonnage réalisé pour les programmes de surveillance de la contamination des organismes vivant dans la zone intertidale.
L'analyse de ces échantillonnages a permis de connaître localement le niveau de pollution des écosystèmes, la où les mesures dans
l'eau ne fournissaient que des valeurs difficilement interprétables à cause de leurs fluctuations importantes dues aux...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-7174.pdf
Toxicite et persistance en milieu marin d'un insecticide derive des benzoylurees: le diflubenzuron.
Provedor de dados: 5
Autores: Alzieu, Claude.
The laboratory tests showed that the diflubenzuron does not present acute toxicity to shellfish and fish, but can affect the survival
rate of Artemia salina and Palaemonetes varians, when its concentration rises to the level of its water solubility. The insecticide
persistence in sea water had been found to be 3 weeks and its concentration factor in the fish after 52 days of exposure was very
low. The use of dimilin in coastal zones for the eradication of caterpillars seems to have an insignificant impact on marine
ecosystem, particularly on the molluscs.
Tipo: Text
Palavras-chave: Toxicity tests; Insecticides.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1977.pdf
L'étain et les organoétains en milieu marin. Biogéochimie et écotoxicologie.
Provedor de dados: 5
Autores: Alzieu, Claude.
This report synthesizes the knowledge on the biogeochemical cycle, bioconcentration processes and ecotoxicity of tin and
organotins in the marine environment. Concentrations levels, biomethylation mechanisms and exchanges between sediments and
water are assessed. Emphasis is given on tributyltin sublethal effects, toxicity mechanisms and no effect levels for the most
sensitive organisms. Regulations on the use of organotins as antifoulants in paints are examined. Conclusions and
recommendations for environmental management and research are given.
Tipo: Text
Palavras-chave: Étain; Biogéochimie; Contamination; Écotoxicologie.; Tin; Biogeochemistry; Contamination; Ecotoxicology.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00332/44314/43883.pdf
Etude de l'épuration "in situ" d'huîtres Crassostrea Gigas contaminées par les diphénylpolychlorés
Provedor de dados: 5
Autores: Alzieu, Claude.
Les diphénylpolychlorés rassemblent un ensemble de substances et isomères qui possèdent un groupement diphényl sur lequel
sont fixés de 1 à 10 atomes de chlore (chloro-homologues). Les formulations commerciales, caractérisées par leur teneur en
chlore, sont des mélanges en proportion variable de certains chloro-homologues. Les plus connues sont les aroclor 1 248, 1 254, 1
260 titrant respectivement 48, 54 et 60 % de chlore, et les phénochlor DP4 (tétrachloré), DP5 (pentachloré) et DP6 (hexachloré).
Leur grande stabilité thermique et chimique ainsi que leur insolubilité dans l'eau sont à la base de leur très large utilisation dans
l'industrie comme plastifiants secondaires des peintures, vernis, matières plastiques et caoutchoucs, fluides caloporteurs,...
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-7153.pdf
Présence de Diphénylpolychlorés chez certains poissons de l'Atlantique et de la Méditerrannée
Provedor de dados: 5
Autores: Alzieu, Claude.
Les composés organohalogénés sont réputés pour leur stabilité qui a pour conséquence leur rétention dans les tissus des
organismes vivants lorsque ceux-ci se retrouvent dans un milieu contenant de tels composés. C'est pourquoi l'éventualité d'une
accumulation dans la faune marine fait l'objet, depuis de nombreuses années, d'une surveillance attentive. Les pesticides les plus
fréquemment décelés chez de très nombreuses espèces, même en des lieux très éloignés de toute activité agricole sont : le DDT,
l'aldrine, la dieldrine et le lindane, produits essentiellement utilisés en agriculture au moins pendant les quinze dernières années.
Dans certains cas, très limités il est vrai, les quantités accumulées par les poissons ont pu entraîner des intoxications...
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-7120.pdf
Dragages et environnement marin Etat des connaissances
Provedor de dados: 5
Autores: Alzieu, Claude; Abarnou, Alain; Bassoullet, Philippe; Boutier, Bernard; Chiffoleau, Jean-francois; Crenn, Isabelle;
Derrien, Annick; Erard-le Denn, Evelyne; Gourmelon, Michele; Guiliaud, Jean-françois; Silva Jacinto, Ricardo; Le Cann, Pierre;
Le Guyader, Françoise; Le Hir, Pierre; L'Yavanc, Jacky; Mauvais, Jean-louis; Menard, Dominique; Michel, Pierre; Monbet, Yves;
Pommepuy, Monique; Quiniou, Francoise.
Port activities require continuous or occasional dredging of considerable quantities of sediments : approximately 50 million m3
along the French coastline. A large proportion of the dredgings is authorized for dumping at sea in geographically delimited areas
and following an impact evaluation of their potential harmfulness to the marine environment. The environmental risks assessment
linked to dredging operations relies on knowledge related to several scientific disciplines contributing to changes in the
regulations. This work, intended both for managers and for environmental scientists and engineers, is designed to take stock of the
current state-of-the-art in the field of sediment contamination and related ecotoxicological hazards, along with a review of...
Tipo: Text
Palavras-chave: Regulations; Management; Impact; Contaminants; Dredging; Réglementation; Gestion; Impact; Contaminants;
Dragages.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-1040.pdf
Biodragages - Protocole de suivi de l'efficacité et de l'impact potentiel
Provedor de dados: 5
Autores: Alzieu, Claude; Andral, Bruno; Bassoulet, Philippe; Gourmelon, Michele; Le Quillec, Régis; L'Yavanc, Jacky; Quiniou,
Francoise.
Les traitements in situ des sédiments, ou biodragages, consistent à disperser à la surface ou à injecter dans le sédiment des
produits pulvérulents sur lesquels sont fixées des bactéries capables de dégrader les matières organiques. Peu de données
expérimentales sont disponibles quant à l'efficacité et à l'impact de cette pratique qui, bien qu'utilisée dans certains milieux d'eau
douce, n'a pas fait l'objet de réelles applications en milieu marin. L'offre de service de quelques opérateurs et la demande des
gestionnaires des ports, ne peuvent être prises en considération, faute d'une connaissance approfondie des avantages et
inconvénients de telles techniques. Il nous est donc apparu nécessaire de définir et de proposer, aux Services en charge des...
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00040/15121/12457.pdf
Réalisation d'un modèle de dispersion d'un rejet de dragage et des contaminants associés. Rapport
définitif: contrat « LITEAU » 2ème phase
Provedor de dados: 5
Autores: Alzieu, Claude; Andral, Bruno; Bassoullet, Philippe; Boutier, Bernard; Gonzalez, Jean-louis; Huet, Martial; Jestin,
Herve; L'Yavanc, Jacky; Michel, Pierre; Paulet, Yves-marie; Quiniou, Francoise; Silva Jacinto, Ricardo.
Le projet à pour but de modéliser la dispersion des immersions des boues de dragage, à partir de modèles numériques de manière
à pouvoir évaluer le devenir de la charge particulaire et des contaminants associés. Les résultats des expérimentations en
laboratoire montrent, qu'à l'échelle représentative du temps de séjour des particules dans la colonne d'eau du champ proche
(quelques heures), on ne constate pas de solubilisation des métaux. La libération de la fraction associée aux eaux interstitielles et
les flux à l'interface eau-sédiment (diagenèse précoce) après dépôt des sédiments rejetés, sont les processus qui pourraient être la
cause d'un apport important de Cd (ou autre contaminant) dissous dans le milieu. Les hypothèses retenues pour l'élaboration...
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00075/18621/16172.pdf
Copper levels evolution in Arcachon bay oysters : role of the regulation on antifouling paints
Provedor de dados: 5
Autores: Alzieu, Claude; Barbier, Georges; Sanjuan, Jane.
The ban of tributyltin compounds in antifouling paints induced a strong decrease in the level of tin in Arcachon bay. At the same
time, copper inputs have increased tenfold since 1982 owing to the widespread use of paints containing cuprous oxide. In spite of
this large input, the statistical analysis of monitoring data (1979-1985) show a relative stability in the copper levels in Arcachon
bay oysters.
Tipo: Text
Palavras-chave: Cuivre; Huîtres; Bassin d'Arcachon; Peintures antisalissures; Copper; Oysters; Arcachon Bay; Antifouling
paints.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00022/13291/10337.pdf
Evolution des teneurs en cuivre des huîtres du Bassin d'Arcachon: influence de la législation sur les
peintures antisalissures
Provedor de dados: 5
Autores: Alzieu, Claude; Barbier, Georges; Sanjuan, Jane.
The ban of tributyltin compounds in antifouling paints induced a strong decrease in the level of tin in Arcachon bay. At the same
time, copper inputs have increased tenfold since 1982 owing to the widespread use of paints containing cuprous oxide. In spite of
this large input, the statistical analysis of monitoring data (1979-1985) show a relative stability in the copper levels in Arcachon
bay oysters.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00155/26605/25506.pdf
Evaluation des risques liés à l'immersion des boues de dragage des ports maritimes. Colloque de
restitution des résultats du programme PNETOX, Paris 3 et 4 octobre 2002
Provedor de dados: 5
Autores: Alzieu, Claude; Bocquene, Gilles; Delesmont, Régis; Dhainaut-courtois, Nicole; Empis, Anne; Forget, Joelle; Glemarec,
Michel; Pavillon, Jean-françois; Pruvot, Chrystèle; Quiniou, Francoise.
RAPPEL DES OBJECTIFS - Les objectifs visés par l'étude à l'origine du présent contrat consistaient à proposer et réaliser une
démarche d'analyse prévisionnelle des risques environnementaux applicable aux boues de dragages des ports maritimes et à leur
immersion. L'objectif final était de fournir aux services portuaires et aux Cellules de la Qualité des Eaux Littorales du Ministère
de l'Aménagement du Territoire et de l'Environnement, une méthodologie de prévision des risques environnementaux des
immersions des matériaux de dragage, facilitant ainsi leur gestion.
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00075/18613/16166.pdf
Tolérance de la faune marine à Bacillus Thuringiensis
Provedor de dados: 5
Autores: Alzieu, Claude; De Barjac, Huguette; Maggi, Pierre.
Le patrimoine forestier est régulièrement menacé par la prolifération de prédateurs qui, par leur voracité, peuvent dévaster de très
importantes surfaces boisées. Parmi ces ravageurs, la chenille processionnaire du pin (Thaumetopoea pityocampa SCHIFF) fait
l'objet d'une surveillance particulière des services phytosanitaires chargés de la protection des végétaux. Lorsque les populations
de chenilles se développent de façon pléthorique des campagnes de lutte sont entreprises soit avec des moyens mécaniques
(destruction des branches supportant les nids), soit par traitements aériens à l'aide d'insecticides. Le D.D.T. a d'abord été utilisé
pour le traitement de grandes superficies mais en raison d'inconvénients majeurs tels que : apparition de phénomènes de...
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-7114.pdf
Teneurs en composés organochlorés chez les Cétacés et Pinnipèdes fréquentant les côtes françaises
Provedor de dados: 5
Autores: Alzieu, Claude; Duguy, R.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00122/23322/21145.pdf
Etude des mammifères marins comme détecteurs de pollution
Provedor de dados: 5
Autores: Alzieu, Claude; Duguy, R.; Babin, Philippe.
Les Mammifères marins, du fait de leur situation en fin de chaîne alimentaire, présentent un intérêt certain pour essayer de
déterminer l'état du milieu marin. Il a donc paru intéressant d'étudier la contamination de celui-ci par les micropulluants en
utilisant les Cétacés et les Phoques comme détecteurs de pollution. Dans ce but, un programme de recherches a été entrepris grâce
aux contrats d'étude proposés par le C.N.E.X.O. de 1977 a 1980 (contrat n° 77/1649), puis en 1981 (contrat n° 81/2448).
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00151/26198/24218.pdf
Teneurs en composés organochlorés chez les cétacés et pinnipèdes fréquentant les côtes françaises.
1978
Provedor de dados: 5
Autores: Alzieu, Claude; Duguy, Raymond.
Des déterminations des teneurs en diphénylpolychlorés DDT, DDE et DDD ont été effectuées dans le lard, les IJuscles et les
viscères de 87 mammifères, la plupart échoués sur les côtes françaises au cours des cinq dernières années. Les prélèvements ont
été effectués chez 80 Cétacés odontocètes (75 Delphinidae, 2 Physeteridae, 3 Hyperoodontidae), 3 Cétacés mysticètes
(Balaenopteridae) et 4 Pinnipèdes (Phocidae) La contamination est très variable d'un individu à l'autre et chez un même individu
sa répartition est différente suivant les organes, Elle est plus élevée chez les jeunes des espèces ommivores que chez les
planctonophages (mysticètes).
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00140/25161/23269.pdf
Contamination du dauphin bleu et blanc de Méditerranée Stenella coeruleoalba par les composés
organochlorés
Provedor de dados: 5
Autores: Alzieu, Claude; Duguy, Raymond.
The contamination levels by PCB, DDT and mctabolites were analysed in tissue of 22 dolphins. Slenella coeru/eoa/ba stranded on
the Mediterrancan coast of France. The organochlorine content were more high in the blubber and liver than in the other organs.
The immature animais, and particularly a new born, are more contaminated than the adults. Certains observations suggest that the
health of the dolphin may be endangered if PCB level in the liver exceeds 20 mg/kg of dry freezing tissue.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00059/17029/14535.pdf
Pathologie des Delphinidae: contamination foetale et neo-natale par les PCB. Lesion cutanees
ulceratives.
Provedor de dados: 5
Autores: Alzieu, Claude; Duguy, Raymond; Babin, Philippe.
Contamination of Delphinidae's fetuses and newborn has been determined from the organochlorine levels found in the fetuses and
pregnant female organs, and in the milk of lactating females, for 4 dolphins and 3 porpoises. High levels of these components
show an important transference of mother's contamination to their fetuses and new-born. The examination of 69 ulcerative
cutaneous lesions allowed to determine 5 main types of ulcerations with pyocytary necrosis and granulomatous reaction.
Tipo: Text
Palavras-chave: MED; France ANE; France Stenella coeruleoalba Phocoena phocoena Delphinus delphis Delphinidae Cetacea
Disease transmission PCB Bioaccumulation Disease detection Marine mammals.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-1858.pdf
Ecotoxicological effects of organotin compounds on oyster culture
Provedor de dados: 5
Autores: Alzieu, Claude; Heral, Maurice.
The toxic effect of trialkyltin compounds is used in antifouling paints to protect vessels against biofouling organisrns. Tributyltin
oxide (TBTO) or fluoride (TBTS) leaches by diffusion from the paint layer into the seawater. Trialkyltin compounds in aqueous
solutions are resistant to hydrolysis and biodegradation, but are rapidly converted into diakyl, monoalkyl and inorganic tin by
UV irradiation. As inhibiting agents of the oxidative phosphorylation, organotin compounds are extremely dangerous for aquatic
organisms such as molluscs. The following estimated toxicity levels for Crassostrea gigas oyster larvae have been put forward : at
100 µg.l(1) the fecondation is inhibited, at 10 µg.l1 the already of 20 % of the eggs is affected larval development...
Tipo: Text
Palavras-chave: Toxicity; Fluoride; Tribultyltin oxide; Toxic effect; Oysters; Crassostrea gigas.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-2931.pdf
Les peintures marines antisalissures et leur impact sur l'ostréiculture
Provedor de dados: 5
Autores: Alzieu, Claude; Heral, Maurice; Dreno, Jean-paul.
On 17 January 1982, the Minister of the Environment issued a decree limiting the use of anti-fouling paints that have
organostannic derivatives for boats of less than 25 metres in length. This decision, taken after advice from the Commission for
Assessing the Ecotoxicity of Chemical Substances, was meant to protect oyster-farming against the serious pollution linked to the
growing use of this type of paint. These provisions, adopted only a few months after the harmful effects of organo-tins were
brought to light, made it possible to protect oyster farming in some endangered areas. Moreover, they brought on an international
awareness of the ecological risks linked to the struggle against marine biological fouling.
Tipo: Text
Palavras-chave: Ostréiculture; Impact; Peintures antisalissures.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-3025.pdf
Influence des Peintures Antisalissures a Base d'Organostanniques sur la Calcification de la Coquille
de l'Huitre Crassostrea gigas.
Provedor de dados: 5
Autores: Alzieu, Claude; Heral, Maurice; Thibaud, Yves; Dardignac, Marie-jose; Feuillet, Michèle.
Experiments in oyster-breeding areas where oyster Crassostrea gigas suffers from anomalies of calcification, show an obvious
correlation between the importance of the malformation of shells and the vicinity of port areas where a great number of boats
usually stay. Organotin compounds contained in antifouling paints, and more precisely Tributyltin fluoride (TBTF) induce, in
experimental environment, similar anomalies to those observed in natural environment. The amounts of total tin in the tissues of
oysters living in the vicinity of spots where organotin products are brought in, can reach high values, though they appear to
decrease rapidly whereas the environmental contamination lessens. The authors suggest that results of organotin upon the
mechanisms of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Pollution effects; Toxicity; Calcification; Fouling control; Paints.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-1898.pdf
Contamination des coquillages des côtes bretonnes et normandes par une algue unicellulaire toxique
(Dinophysis acuminata). Evolution, nature, conséquences
Provedor de dados: 5
Autores: Alzieu, Claude; Lassus, Patrick; Maggi, Pierre; Poggi, Robert; Ravoux, Georges.
On the 21st of June 1983, the I.S.T.P.M. notified the Head of the French Marine Affairs for the Bretagne-Vendée area about the
presence of a toxic phytoplanktonic organism in the waters of the Bay of the Vilaine which could cause gastrointestinal
intoxications to shellfish eaters. Simultaneously, the Departmental Management Service of Social and Health Affairs (DDASS) of
the Loire-Atlantique region reported numerous intoxication cases caused by the consumption of shellfishes. [...]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/rapport-4577.pdf
Détermination des critères pour juger de la nuisance des produits organohalogènes vis-à-vis du milieu
marin
Provedor de dados: 5
Autores: Alzieu, Claude; Le Baut, Claire; Sanjuan, Jane.
Le danger des rejets dans l'environnement de substances organiques chlorées, comme le DDT et les PCB, est connu depuis de
nombreuses années. En effet, les organochlorés sont largement utilisés dans l'industrie comme solvants et dans l'agriculture
comme pesticides. En raison de leur persistance dans l'environnement, de leur accumulation dans les chaînes alimentaires et de
leur grande toxicité (comparée à celle d'autres polluants comme les détergents ou les hydrocarbures), ils ont été déclarés
indésirables dans le milieu naturel et en particulier le milieu marin.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00046/15718/13120.pdf
Opération surveillance de l'incinération des composés organochlorés en mer
Provedor de dados: 5
Autores: Alzieu, Claude; Maggi, Pierre.
A la demande du Ministère de l'Environnement, l'I.S.T.P.M. a participé en collaboration avec l'Institut Français du Pétrole, le
Commissariat à l'Energie Atomique et le Centre National pour l'Exploration des Océans, à une campagne d'études des nuisances
provoquées par les incinérations de composés organochlorés en mer.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/00046/15704/13106.pdf
Présence de micropolluants dans les mollusques littoraux
Provedor de dados: 5
Autores: Alzieu, Claude; Michel, Pierre; Thibaud, Yves.
A survey about mercury, chlorinated and total hydrocarbons contents in five species of coastal shellfishes shows that harbour and
estuarine areas are among the most polluted. These contents are lowest for gasteropods than bivalves. For mercury and total
hydrocarbons, we show there is a level, corresponding with a natural occurence in the marine environment.
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-7125.pdf
Evaluation des Risques dus a l'emploi des Peintures Anti-Salissures Dansales Zones Conchylicoles.
Provedor de dados: 5
Autores: Alzieu, Claude; Thibaud, Yves; Heral, Maurice; Boutier, Bernard.
The boats cruising in the oyster growing areas are protected against biofouling by paints which release toxic compounds such as
copper oxide and organotins into the water. After an estimation of the inputs of copper and organotins in the "Marennes-Oleron",
Arcachon (Atlantic)
and Thau (Mediterranean Sea) areas, their influence on larval fixation is discussed, taking into account the
tributyltin toxicity against D larvae of Crassostrea gigas. Laboratory experiments have demonstrated that tributyltin produces
morphological abnormalities of the shell and increases tin levels in tissues, interfering with copper and zinc metabolism. The
influence of yacht ports on oyster growth and shell morphology, has been demonstrated in the field. The use of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oyster culture; Abnormalities; Shells; Growth; Paints; Antifouling substances; Pollution
effects.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-1905.pdf
Étude critique des techniques d'analyse utilisées pour la mesure des pollutions en milieu marin Micropolluants organiques
Provedor de dados: 5
Autores: Alzleu, Claude; Michel, Pierre.
Le DDT, ses dérivés DDD, DDE et les polychlorobiphényls (PCB) constituent les résidus organochlorés les plus fréquemment
rencontrés dans l'environnement marin. Depuis que JENSEN a signalé en 1968 l'interférence des P C B dans les analyses du DDT
et de ses dérivés, la plupart des laboratoires utilisent des méthodes permettant d'identifier séparément ces deux groupes de
produits. Nous ne considérerons donc que les méthodes analytiques qui permettent de déterminer simultanément, sur un même
échantillon, l'ensemble de ces résidus. Le mode opératoire de ces procédés analytiques comprend généralement cinq opérations
distinctes : - conditionnement des échantillons, - extraction des résidus organochlorés par un solvant organique, - purification de
l'extrait, -...
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/00047/15784/13185.pdf
A step toward the definition of ecological indicators of the impact of fishing on the fish assemblage of
the Abore reef reserve (New Caledonia)
Provedor de dados: 5
Autores: Amand, Marion; Pelletier, Dominique; Ferrari, Jocelyne; Kulbicki, Michel.
Marine Protected Areas (MPA) are often contemplated as a tool for the sustainable management of exploited resources and
ecosystem conservation. This paper proposes an approach to establish a statistical diagnostic of the effects of MPAs on fish
assemblages, and define corresponding ecological indicators. This requires choosing relevant variables (abundance, diversity,
demographic parameters..) and appropriate statistical methods. The study was based on data from the Abore reef Reserve in New
Caledonia. Two sets of methods: 1-inferential linear models (ANOVA, GLM): 2- Partial Least Squares (PLS) methods of
regression, were used to test the effects of this MPA. PLS enabled us to test simultaneously within a model, density, species
richness, biomass and mean...
Tipo: Text
Palavras-chave: New Caledonia; PLS regression; Ecological indicators; Fishing impact; Coral reef; Fish; Marine Protected
Areas.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-398.pdf
Organisation et evolution des peuplements lagunaires
Provedor de dados: 5
Autores: Amanieu, M; Lasserre, G.
The analysis of the community structures of a Danish fjord macrofauna and of various Mediterranean lagoons results in the same
interpretation of the organization of communities which start from meroplankton, leading to the formation of disorganized
communities. The biotic and abiotic lagoon environment puts these populations under stress, causing gradual organization into
structured one-species communities. Such an interpretation suggests that the degree of organization is measured by the species
diversity or more precisely by one species alone. Each population has to develop and adapt strategy which favors migratory
behavior. When this is not possible, a waste economy develops where the speed of the generation cycles corrects the catastrophic
losses...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00246/35752/34260.pdf
Le programme Écothau : théorie écologique et base de la modélisation
Provedor de dados: 5
Autores: Amanieu, M; Legendre, P; Troussellier, Marc; Frisoni, Gf.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00106/21747/19320.pdf
Ecothau. Troisième compte-rendu d'activités Juillet 1988-Décembre 1989
Provedor de dados: 5
Autores: Amanieu, Michel.
Le présent document constitue le compte rendu des activités poursuivies dans le cadre du programme ECOTHAU pour la période
allant de Juillet 1988 à Décembre 1989. C'est donc le troisième et dernier C.R. d'activité s.s. avant le rapport de synthèse final dont
la rédaction est en cours.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00060/17164/14666.pdf
Ecothau. Compte-rendu d'activité Mai 1986-Mai 1987
Provedor de dados: 5
Autores: Amanieu, Michel.
ECOTHAU a un an. C'est en effet le 17 juin 1986 que débutait la première campagne spatiale qui matérialisait la phase
opérationnelle du programme. Mais cette date n'était déjà qu'une étape, bien que décisive, dans le cours d'une réflexion entamée
dès le mois de mai 1984, à l'occasion du lancement de l'ATP/PIREN "Lagunes et marais maritimes".
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00060/17167/14669.pdf
Ecothau. Deuxième compte-rendu d'activités. Juillet 1987-Juillet 1988
Provedor de dados: 5
Autores: Amanieu, Michel.
Le présent document constitue le compte-rendu des activités poursuivies dans le cadre du programme ECOTHAU pour la période
allant de juillet 87 à juillet 88 ; il fait donc suite au premier compte-rendu qui couvrait la période 86-87.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00060/17165/14667.pdf
Ecothau. Programme de recherches intégrées sur l'étang de Thau
Provedor de dados: 5
Autores: Amanieu, Michel.
Le présent programme a été rédigé en réponse aux recommandations du groupe ad hoc "milieu littoral" et à la lettre en date du 25
septembre 1984 adressée à Michel AMANIEU, professeur à l'Université des Sciences et Techniques du Languedoc par Michel
GLASS, directeur adjoint du PIREN. Il s'inscrit dans le prolongement des réflexions engagées à l'occasion des propositions reçues
au bureau de l'ATP "Lagunes et marais maritimes". Compte tenu de l'accord de principe donné par le PIREN au programme
ECOTHAU, la présente rédaction répond plus particulièrement aux précisions demandées lors de l'examen de notre première
proposition.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00060/17166/14668.pdf
Etude du stock et de la dynamique des populations de daurades et de loups des étangs côtiers
méditerranéens.
Provedor de dados: 5
Autores: Amanieu, Michel; Lasserre, Gérard; Pariselle, J.
AVANT PROPOS - Dans le cadre du contrat référé, j'ai proposé le 10 Mars 1972 un programme accepté le 31 Juillet 1972, dont je
rappelle les éléments. A- Etude dynamique des populations juvéniles comprenant : I) Sur la daurade, étude, au printemps, du
stock, de la croissance, de la biomasse et de la production des 0+ dans un petit étang littoral. Cette étude fait l'objet du paragraphe
A du Thème I "Daurade" ci-joint. II) Sur le loup, une étude analogue poursuivie en automne et au début de l'hiver. Cette étude
fait l'objet du Thème II "Loup" ci-joint. B- Etude des daurades adultes comprenant : I) Migrations - II) Définition des
paramètres de croissance et de la relation taille/poids.- III) Définition des courbes de rendement de la pêche...
Tipo: Text
Ano: 1973
URL: http://archimer.ifremer.fr/doc/00187/29856/28305.pdf
Sur la présence accidentelle de Callinectes sapidus M. RATHBUN à l'embouchure de la Gironde
Provedor de dados: 5
Autores: Amanieu, Michel; Le Dantec, Jean.
On 16 September 1960, the association of seafarers in Verdon brought us a crab, previously unknown in Gironde, which was
caught in a square net near the breakwater at the entrance to the estuary. We were able to identify the crab as the large edible
American crab Calinectes sapidus (Rathbun 1896), also called blue crab due to the bright blue coloration of its chelipeds.
Tipo: Text
Ano: 1961
URL: http://archimer.ifremer.fr/doc/1961/publication-4260.pdf
Toxicity of Epoxiconazole to the Marine Diatom Chaetoceros calcitrans: Influence of Growth
Conditions and Algal Development Stage
Provedor de dados: 5
Autores: Amara, Anis; Quiniou, Francoise; Durand, Gael; El Bour, Monia; Boudabous, Abdellatif; Hourmant, Annick.
The triazole fungicide epoxiconazole is extensively used to control fungi on crops and may present some potential risk from
runoff on coastal ecosystems located close to agricultural areas. Phytotoxicity assessments were conducted on the marine diatom
Chaetoceros calcitrans using both the active ingredient and its formulated product (Opus). The 3-day EC50 using cell count was
2.31 mg/L for epoxiconazole active ingredient and 2.9 mu g/L for epoxiconazole-formulated. The fungicide produced an increase
of cellular volume, pigment (chlorophylls a, c, and carotenoids) content, ATP synthesis, and rates of photosynthesis and
respiration. Progressive algal cell recovery from epoxiconazole effects occurred after 3 days, with the increasing cell density.
Differences...
Tipo: Text
Palavras-chave: Age cell; Chaetoceros calcitrans; Culture conditions; Epoxiconazole; Growth; Physiological parameters.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00130/24105/22491.pdf
L'environnement trophique méiobenthique en dehors des nourriceries côtières est-il favorable à
l'installation des jeunes soles ?
Provedor de dados: 5
Autores: Amara, R; Bodin, P.
We tested the hypothesis that the absence of newly settled Dover soles (Solea solea) outside the estuarine nurseries of this species
is due to a lack of suitable benthic prey. The availability of potential prey was studied at five stations within the distribution area
of metamorphosing Dover sole on the northern continental shelf of the Bay of Biscay. Station locations ranged from the offshore
spawning grounds to the coastal zone. Suitable feeding conditions for metamorphosing flatfish were found at all five stations.
Harpacticoid copepods, the preferred prey of newly settled juvenile sole, are abundant and diversified on the spawning grounds
where a majority of Dover sole larvae begin their metamorphosis. Furthermore, harpacticoid copepods were preyed...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00097/20855/18474.pdf
Metamorphosis and estuarine colonisation in the common sole, Solea solea (L.): implications for
recruitment regulation
Provedor de dados: 5
Autores: Amara, Rachid; Lagardere, Francoise; Desaunay, Yves; Marchand, Jocelyne.
Processes involved in both metamorphosis and settlement of young sole were studied at the population, cohort and individual
level in order to evaluate their role in survival and recruitment regulation. Metamorphosis can be defined as a phase of variable
duration (10 days on average) at the end of which the larval period of pelagic dissemination is completed. Size at the onset of
metamorphosis is considerably less variable than age and is less plastic to environmental change. Metamorphosis is triggered by
the acquisition of a competent size and a sufficient store of energy supplies, and occurs without a nutritional crisis or growth
arrest. In addition, changes in organogenesis and behaviour that occur during metamorphosis seem to contribute to horizontal...
Tipo: Text
Palavras-chave: Estuarine colonisation; Critical phase; Juvenile; Larva; Solea solea; Colonisation estuarienne; Phase critique;
Juvénile; Larve; Solea solea.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-536.pdf
Growth, feeding and distribution of the solenette Buglossidium luteum with particular reference to its
habitat preference
Provedor de dados: 5
Autores: Amara, Rachid; Mahe, K; Le Pape, Olivier; Desroy, N.
Growth, condition, diet and spatial distribution of the solenette Buglossidium luteum (Risso, 1810) were investigated along the
coasts of the French Atlantic, eastern English Channel and Southern Bight of the North Sea. Distribution and habitat preferences
of solenette were analysed in relation to physical and biological features presumed to influence fish distribution. B. luteum was
patchily distributed and concentrated in shallow muddy and muddy-sand bottoms moderately influenced by estuarine waters
(euhaline waters). In the studied area, solenette seemed to find habitats suitable for growth. Food availability was not assumed to
be a limiting factor for solenette distribution in contrast to abiotic factors such as salinity.
Tipo: Text
Palavras-chave: Solenette; Habitat suitability; Distribution; Feeding; Growth.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-777.pdf
Characterization of new recombinant noroviruses
Provedor de dados: 5
Autores: Ambert Balay, K; Bon, F; Le Guyader, Soizick; Pothier, P; Kohli, E.
Noroviruses are important etiologic agents of acute gastroenteritis and show great genetic diversity. To characterize more fully
previously detected strains that could not be assigned unequivocally to one particular genotype based on the RNA polymerase, we
have sequenced a region in the capsid gene and, in some cases, in the junction between open reading frame 1 (ORF1) and ORF2.
The results allowed us to identify several recombinant noroviruses: GGHb viruses were detected for the first time in France in
August 2000 and then spread through France and to Europe during the following winter. Here we present the characterization of
three other probable GII recombinants which showed different phylogenetic positions depending on their ORF1 and ORF2
sequences....
Tipo: Text
Palavras-chave: Genogroup; RNA recombination; Gastroenteritis; Round structured virus; Reverse transcription; Norovirus.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-1234.pdf
Évaluation des conséquences économiques de la gestion des risques sanitaires liés aux proliférations
phytoplanctoniques marines
Provedor de dados: 5
Autores: Ami, Dominique; Rochaix, Lise.
General introduction: The setting up of monitoring networks for coastal water quality of the REPHY type by IFREMER was taken
from a public health standpoint and fits broadly in with a principle of precaution regarding eating shellfish meant for human
consumption. The benefits to be compared with the costs of managing the REPHY network (estimated at FF7.4 million in 1995)
are therefore first and foremost the reduction of the risk of poisoning and can be captured by subtracting the sanitation costs that
are associated with them. Evaluating these direct benefits is, however, no easy task. The network leads in fact to the reduction of
occurrences of poisoning such that the epidemiological data on which such a calculation should be founded diminishes over
time....
Tipo: Text
Palavras-chave: Algal bloom; Phytoplankton bloom; Mussel culture; Coastal water; Pollution monitoring; Economic impact;
Phytoplancton; Conchyliculture; Eau cotiere; Surveillance pollution; Economie.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/rapport-1741.pdf
Etude des mécanismes de transferts des éléments métalliques dans les chaînes alimentaires
aboutissant à l'huître et à la moule, mollusques filtreurs, formes chimiques de stockage, conséquences
écotoxicologiques
Provedor de dados: 5
Autores: Amiard, J.c.; Amiard-triquet, C.; Berthet, B.; Gauthier, M.; Gillot, P.; Martoja, R.
The first part of this report describes a field study which took place in the Bay of Bourgneuf during more than two years. In this
area, the filterfeeding molluscs show metal concentrations which are generally low compared to those determined in other
worldwide sites. In these conditions, the characteristics of bioaccumulation (seasonal and pluri-annual fluctuations) and
organo-tropism can be considered, to a large extent, as the consequence of the normal metabolism of trace elements. A statistical
analysis of relations between the respiratory type of marine Gram negative bacilli and their resistance to zinc and cadmium, or
their ability to concentrate zinc was carried out on 453 strains isolated monthly from seawater and oyster, of the Bay of
Bourgneuf...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00041/15184/12521.pdf
Variations spatiales des concentrations métalliques (Cd, Cu, Pb) des eaux de la mer d'iroise
Provedor de dados: 5
Autores: Amiard, Jc; Queguiner, F; Camus, Y.
Mean Cd, Cu and Pb concentrations in waters of the Celtic Sea surface layer were found to be 12.4, 55.8 and 36.6 ng.l-1
respectively. From 10 meters below the surface to a depth of 4,400 m, the values are of the same order of magnitude, even in
oceanic waters close to the continental slope. Nevertheless, we noticed a wide spread from maxima to minima especially near the
surface. On the basis of metal concentration data together with physical (temperature, salinity), chemical (phosphates, nitrites,
nitrates, silicates, ammonium and oxygen) and biological (chlorophyll a and phaeophytin rates) parameters, the surface waters of
the Celtic Sea can be subdivided into four zones: one inside the Ushant front; a second, called "mer d'Iroise", and finally, south
and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21372/18972.pdf
Influence of ploidy and metal-metal interactions on the accumulation of Ag, Cd, and Cu in oysters
Crassostrea gigas thunberg
Provedor de dados: 5
Autores: Amiard, Jean-claude; Perrein Ettajani, H; Gerard, Andre; Baud, Jean-pierre; Amiard Triquet, C.
The present study was designed to compare the response to contaminants in diploid with triploid specimens of the oyster
Crassostrea gigas. The reproduction investment in bivalve molluscs has priority on somatic growth. Thus, genetic sterilization by
triploidy induction enables the energy flux to be directed toward somatic growth and glucide storage. Bioaccumulation was
examined for Ag (10 mug/L), Cd (10 mug/L), and Cu (30 mug/L) to determine if the response to metals follows similar patterns in
diploid (2n) and triploid (3n) groups. The effect of ploidy was also evaluated as a function of dry weight of soft tissue and
condition index. Moreover, the reciprocal influence of these metals on their incorporation was studied. The results showed that the
major...
Tipo: Text
Palavras-chave: Oyster culture; Metal bioaccaumulation; Polyploidy.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-791.pdf
La surveillance de la qualité du milieu marin : l'expérience du Réseau National d'Observation (RNO)
et le développement de biomarqueurs
Provedor de dados: 5
Autores: Amiard-triquet, Claude; Burgeot, Thierry; Claisse, Didier.
Monitoring of marine environment quality can be based on chemical analysis of contaminants in the major components of the
environment: seawater, sediment, biota. The respective interest of these different matrices is discussed and the fundamentals for
the use of bivalves in the international Mussel Watch are presented. The objectives of the French RNO are 1) to assess the levels
and trends of contaminants; 2) to assess the biological effects of contaminants. Analysis of the chemicals in biota is an
indispensable complement to the biological approach, allowing their bioavailable fraction to be quantified. However, only a
fraction of xenobiotics incorporated in living beings is biologically active and can exert a noxious effect on the biota. In
addition,...
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00017/12848/9793.pdf
Silver eel population size and escapement in a Mediterranean lagoon: Bages-Sigean, France
Provedor de dados: 5
Autores: Amilhat, Elsa; Farrugio, Henri; Lecomte-finiger, R.; Simon, Guillaume; Sasal, P.
Much concern has been raised about the decline in the European eel (Anguilla anguilla) population. European management plans
for the recovery of the stock are now in preparation, the main objective being to increase the escapement of the potential spawners
(silver eels) in each basin to allow 40% of the pristine biomass to escape. However, there are relatively few studies on silver eel
escapement and production, and no recent measurement of escapement in lagoons, habitats which support large silver eel
sub-populations in the Mediterranean region. A mark-recapture study was carried out in autumn 2007 in order to estimate the
number of silver eels migrating from the Bages-Sigean lagoon in the South-West of France. The migrating population, mostly
males...
Tipo: Text
Palavras-chave: Escapement; Mark recapture; Mediterranean lagoon; Silver eel; Anguilla anguilla; Échappement; Marquage
recapture; Lagune méditerranéenne; Anguille argentée; Anguilla anguilla.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6611.pdf
Silver European eels health in Mediterranean habitats
Provedor de dados: 5
Autores: Amilhat, Elsa; Fazio, Geraldine; Simon, Gael; Manetti, Marc; Paris, Severine; Delahaut, Laurence; Farrugio, Henri;
Lecomte-finiger, Raymonde; Sasal, Pierre; Faliex, Elisabeth.
The degradation in the quality of silver eel and their health could have been a major factor in the collapse of the European eel
(Anguilla anguilla) population. However, the health status of the spawners has been poorly studied until now. This study
evaluated the quality of migrant male silver eels from four Mediterranean habitats in France presenting different degrees of
contamination: Canet-Saint-Nazaire, Salses-Leucate and Bages-Sigean lagoons and La Berre River. We considered pathogens
including Anguillicoloides crassus and EVEX virus and the concentration of chemical contaminants including PCBs, OCs and
heavy metals. Our study results revealed different patterns of pollution and infection in the four habitats, with high individual
variability. No...
Tipo: Text
Palavras-chave: Anguilla anguilla; Mediterranean lagoons; Silver eel; Contamination; Spawner quality; Pathogens.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28252/26543.pdf
Résultats de l’intercomparaison des laboratoires antillais (2000-2001) - Salinité et nutriments (nitrate,
nitrite, ammonium, phosphate)
Provedor de dados: 5
Autores: Aminot, Alain.
Dans le cadre de l'extension du RNO aux Antilles, un exercice d"intercomparaison des laboratoires pressentis pour effectuer les
analyses du volet « hydrologie » a été organisé par l'IFREMER fin 2000-début 2001. L'exercice comportait l'analyse de cinq
paramètres : salinité, nitrate, nitrite, ammonium et phosphate. Chacun des paramètres devait être analysé à deux niveaux de
concentration. Les participants étaient au nombre de 3. Chaque laboratoire a reçu deux flacons de 250 ml pour la salinité et huit
flacons de 150 ml pour les nutriments (un flacon par paramètre et par niveau). Les laboratoires étaient informés qu'ils devaient
analyser les échantillons dans un délai de six semaines environ après réception, ce qui limitait les risques de dérive potentielle...
Tipo: Text
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00018/12911/9866.pdf
Spéciation du phosphore et apports en baie de Seine orientale
Provedor de dados: 5
Autores: Aminot, Alain; Guillaud, Jean-francois; Andrieux, Francoise.
The Bay of Seine receives the French river with the highest nutrient concentrations, especially phosphorus. Dissolved (phosphate)
and particulate phosphorus fluxes have been determined from fortnightly serial data collected by the Port Autonome de Rouen.
These determinants exhibit behaviour opposite to that of the river flow: phosphate concentration decreases hyperbolically and
particulate phosphorus increases linearily. An approach based on the rate of domestic effluent treatment agrees well (20%) with
the measured phosphate flux. The determination of the main particulate phosphorus forms (adsorbed, apatite, non-apatite
inorganic, organic) was undertaken over the whole estuarine salinity range. The speciation of particulate phosphorus exhibits a
great...
Tipo: Text
Palavras-chave: PHOSPHORUS; SPECIATION; FLUX; ESTUARY; SEINE.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00100/21126/18746.pdf
Apports de nutriments et développement phytoplanctonique en baie de Seine
Provedor de dados: 5
Autores: Aminot, Alain; Guillaud, Jean-francois; Andrieux Loyer, Francoise; Kerouel, Roger; Cann, Philippe.
As part of the Programme National d'Oceanographie Cotiere, the nutrient dynamics of the Bay of Seine were studied between
1992 and 1994 in order to complement work on ecological modelling. Firstly, the River Seine's nutrient fluxes were established:
80 000-130 000 t a(-1) of dissolved inorganic nitrogen, 6 400-8 400 t a(-1) of dissolved phosphorus and 20 000-77 000 t a(-1) of
dissolved silicium. Estuarine processes were taken into account. Consequences of nutrient loading for the bay were then evaluated
at the pelagic level (nutrient and chlorophyll enrichments) and the benthic level (distribution of various phosphorus fractions in
superficial sediments). The large continental inputs always induce concentration gradients in the water from the mouth of the...
Tipo: Text
Palavras-chave: Baie de Seine; Rapport de consommation; Chlorophylle; Nutriment; Bay of Seine; Uptake ratio; Chlorophyll;
Nutrient.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-844.pdf
La baie de Seine : hydrologie, nutriments, chlorophille (1978-1994)
Provedor de dados: 5
Autores: Aminot, Alain; Guillaud, Jean-francois; Kerouel, Roger.
The data of hydrology, nutrients and chlorophyll obtained in the Bay of Seine over the period 1978-1994, from 14 océanographie
cruises, are synthetised and illustrated by an atlas. The Bay is a typical example of a coastal area influenced by a large river. In
winter, the nutrient input is drained off into the eastern Channel. In spring, nutrients are consumed intensively. Silicate is the first
that drops to limiting levels. The spring bloom generally begins in the centre-east of the Bay. Chlorophyll a can reach up to 40-70
µg/l during the year, values typical of eutrophic coastal areas. Despite the regular increase of nitrogen inputs, the biomass (as
chlorophyll) has not significantly changed over a fifteen year period.
Tipo: Text
Palavras-chave: Chlorophyll; Nutrients; Hydrology; Bay of Seine; Chlorophylle; Nutriments; Hydrologie; Baie de Seine.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/rapport-1428.pdf
Suivi à long terme des apports de matières organiques et nutritives par les effluents urbains de
Morlaix
Provedor de dados: 5
Autores: Aminot, Alain; Guillaud, Jean-francois; Le Guellec, Anne-marie.
La qualité des effluents de la station d'épuration de Morlaix a été suivie pendant six mois. Les rendements ont été évalués et
comparés à ceux observés précédemment avant réfection du réseau de collecte. Les flux sont comparés à ceux de la rivière en
période pluvieuse et en période sèche.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00080/19135/16730.pdf
Dosage automatique de l'urée dans l'eau de mer : une méthode très sensible à la diacétylmonoxime
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, R.
The determination of urea in sea water was performed by an automated method based on the reaction of urea with
diacetyl-monoxime. The sensitivity,
which has been greatly enhanced compared to previous methods, by using reagents
containing thiosemicarbazide and iron III, is 0.044 absorbance units/ g-at urea-N/L with the 50 mm flow cell. The precision is
0.01 g-at urea-N/L and the limit of detection (2 SD) is 0.02 g-at urea-N/L. The absorbance-concentration relationship is linear
up to 15 g-at urea-N/L. The analytical blanks have been strictly determined and the interferences studied. Citrulline is the main
compound that interferes. However, in attempting to remove this compound from the samples by a chelating resin.
we
demonstrated its absence from...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-5350.pdf
Premiers résultats sur l'hydrologie, l'oxygène dissous et les pigments photosynthétiques en Manche
Occidentale après l'échouage de l"Amoco Cadiz"
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger.
During the cruises "SUROIT 1", "SUROIT 3" and "THALIA 1", many analyses of dissolved oxygen and chlorophyll have been
carried out in order to ascertain some effects of oil spill of "AMOCO CADIZ" on oxygen concentrations and phytoplancton
behaviour. These first results show an under-saturation of oxygen, four weeks after stranding, in sea-water standing between 10 to
20 milles eastward of "AMOCO CADIZ". These data allow to do some considerations about oxydation of hydrocarbons in
sea-water. In estuaries, especially Aber Wrac'h, one of the most polluted, the analyses do not show obvious anomaly one month
after oil spill. Quantitative results on chlorophyll "a" and phaeopigments don't seem to show any noticeable disturbance, neither
off, nor near the coast,...
Tipo: Text
Palavras-chave: Amoco Cadiz; Chlorophylle; Oxygène dissous; Manche; Amoco Cadiz; Chlorophyll; Dissolved oxygen; Engllsh
Channel.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00306/41719/40930.pdf
The determination of total dissolved free primary amines in seawater: Critical factors, optimized
procedure and artefact correction
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger.
The paper reviews the methods described in the literature for the determination of total dissolved free primary amines (TDFPA)
by fluorescence. A wide set of reaction conditions can be found, but they rely on few experiments for their validation. Among
fluorogenic compounds, o-plithaldialdehyde (OPA) is more sensitive than fluorescamine and was thus examined here. However,
the use of mercaptoethanol (ME) in the reaction (as ail additional derivatization compound) is able to generate unreliable results,
in particular when standardization relies on glycine. We suggest replacing ME with 3-mercaptopropionic acid (MPA) which
induces more stable and comparable fluorescence among amine Compounds. A systematic study was therefore undertaken to
define reagent...
Tipo: Text
Palavras-chave: Fluorescence; Determination; Seawater; Total dissolved free primary amines.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2274.pdf
Dissolved organic carbon, nitrogen and phosphorus in the N-E Atlantic and the N-W Mediterranean
with particular reference to non-refractory fractions and degradation
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger.
Dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and dissolved organic phosphorus (DOP) measured in deep
profiles in the N-E Atlantic and in the N-W Mediterranean in the period 1984-2002 are described. After accurate validation, they
show close agreement with those previously published. Classic profiles were obtained, with concentrations decreasing in deep
waters. In the Mediterranean and in the Atlantic comparable concentrations were found in the 1500-2000 m waters, 44-46 mumol
1(-1) DOC, 2.6-2.8 mumol 1(-1) DON and 0.02-0.03 mumol 1-1 DOP. In the surface layers, DOC concentrations were higher, but
DON and DOP concentrations lower, in the Mediterranean than in the Atlantic, leading to higher element ratios in the
Mediterranean. In autumn,...
Tipo: Text
Palavras-chave: N W Mediterranean; N E Atlantic; Mineralization; Non refractory; Refractory; Dissolved organic phosphorus;
Dissolved organic nitrogen; Dissolved organic carbon.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-472.pdf
An automated photo-oxidation method for the determination of dissolved organic phosphorus in
marine and fresh water
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger.
A segmented flow automated method with on-line photo-oxidation for the determination of dissolved organic phosphorus +
soluble reactive phosphorus (DOP + SRP) in seawater and fresh water is described here. A low-power lamp was used for a
compact, easy-to-handle and low-ozone-producing manifold. The influence of seawater matrix components was studied in detail
using natural seawater and salt solutions spiked with DOP model compounds. Bromide was found to be the most inhibitory
species in seawater. The work shows that most salt solutions referred to as artificial seawater are not satisfactory model matrices
to test the actual seawater matrix effect. Since DOP recovered in undiluted seawater samples was about half that obtained in fresh
water samples, the...
Tipo: Text
Palavras-chave: Measurement; Fresh water; Seawater; Total dissolved phosphorus; Dissolved organic phosphorus.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-1678.pdf
Intercomparaison des laboratoires antillais - (2000-2001) - Préparation et contrôle des matériaux de
référence pour la salinité et les nutriments (nitrate, nitrite, ammonium, phosphate)
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger.
La préparation de matériaux de référence pour des exercices d'intercomparaison pour les eaux de mer a été pratiquée à plusieurs
reprises par notre laboratoire au cours des années passées, soit au niveau français (cas de la salinité pour le RNO) soit au niveau
international (cas des nutriments). Ainsi, pour les nutriments, deux exercices du CIEM (Conseil International pour l'Exploration
de la Mer) ont été préparés, lesquels ont été suivis du programme européen d'assurance qualité QUASIMEME comportant six
exercices en trois ans. Nous avons également contribué à l'exercice concernant l'agrément des laboratoires type 8 « eaux marines »
du Ministère de l'Environnement en 1998. Les résultats de ces exercices et les méthodes de préparation des matériaux de...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00018/12912/9868.pdf
A flow injection-fluorometric method for the determination of ammonium in fresh and saline waters
with a view to in situ analyses
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Birot, Dominique.
A version of the orthophthaldialdehyde-fluorescence ammonium determination for flow injection analysis (FIA) is presented here,
with a view to its use for in situ, low-power consumption systems, Thus, the reaction temperature was limited to 30 degreesC and
FIA was used in stop-Bow mode (3 min stop). The calibration is linear up to 50 mu mol l(-1), but concentrations up to 100 mu
mol l(-1) can be measured. Repeatability is around 1% in the range of 0.5-4 mu mol l(-1) and the detection limit is about 0.03 mu
mol l(-1) Over the salinity range of 5-35 (seawater practical salinity scale) the salt effect is almost negligible (within +/- 2%); and
below salinity of 5 it increases to a maximum of -9% in fresh water compared to seawater. Hydrogen carbonate,...
Tipo: Text
Palavras-chave: In situ; Fluorometry; Flow injection analysis; Determination; Ammonium.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-1722.pdf
Mesure du phosphore dans les eaux naturelles : contamination potentielle par la verrerie
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Etoubleau, Joel; Cambon, Pierre.
Des mesures de phosphore dans plusieurs échantillons de verres de laboratoire ont été réalisées, après digestion fluorhydrique, par
colorimétrie phosphomolybdique. On trouve que les verres peuvent contenir de 0,001 à 0,002 % de phosphore. On montre que la
verrerie peut contribuer de manière significative à la contamination en phosphore d'échantillons d'eaux naturelles, notamment
d'eau de mer, en raison de la dissolution partielle du verre dans l'échantillon, dans certaines conditions de conservation ou de
digestion.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00082/19346/16940.pdf
Hydrologie, éléments nutritifs et matière organique dissoute en Méditerranée Nord-Occidentale
(Campagne RNO-INTERSITE Il, 14-26 septembre 1984)
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Joanny, Michel; Le Guellec, Anne-marie.
Les éléments nutritifs (N-NH4 +, N-N02-, N-NO3, P-PO4 3- et Si-Si(OH) 4) et la matière organique dissoute (COD, NOD, POD,
urée, amines primaires libres) mesures en septembre 1984 en Méditerranee nord-occidentale sont interprétés en fonction de
l'hydrologie. Les résurgences d'eaux subsuperficielles influencent plus les concentrations des éléments nutritifs que celles de la
matière organique. La composition globale (en C, N et P) de la matière organique a pu être donnée : on note des différences entre
les masses d'eau.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00082/19288/16883.pdf
Rejets urbains en milieu cotier Composition des effluents urbains éléments nutritifs et matière
organique Application au site de Toulon-Est
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Le Guellec, Anne-marie; Bodennec, Guy; Quemeneur, Michelle; Marty, Yanic.
Ce travail est effectué dans le cadre du programme général concernant l'étude des rejets urbains en mer, sous la responsabilité de
Jean-François GUILLAUD. Il constitue, dans ce programme, le premier volet de l'étude des paramètres entrant dans la chimie des
cycles naturels, par la recherche d'une définition aussi précise que possible de la composition des effluents urbains brut et épuré et
de leur évolution journalière.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00082/19295/16890.pdf
Les elements nutritifs en baie de Seine
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Mauvais, J.
Seasonal variations of dissolved nutrient concentrations are reported in this paper. Impacts of freshwater are investigated by the
study of dilution, nutrient quantity, and relation with phytoplanktonic growth.
Tipo: Text
Palavras-chave: Silicon; Phosphorus; Nitrogen; Seasonal variations; Dilution; Primary production; Eutrophic waters;
Phytoplankton; River discharge; Coastal zone; Nutrients (mineral).
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1295.pdf
The fifth ices intercomparison exercise for nutrients in seawater
Provedor de dados: 5
Autores: Aminot, Alain; Kirkwood, Don.
In these increasingly cost-conscious times, tax-payers are entitled to ask whether their national environmental research and
monitoring programmes are delivering value for money, and it is understandable and right that they should. More people than ever
are now inclined to enquire as to the quality of the results of chemical analysis before using them for their intended purpose, and
'Quality Assurance' is the phrase on everyone's lips. It is no secret that marine chemists have generated their share of random
numbers in the past. That said, sorne of the techniques in use in environmental analysis twenty years ago were not sufficiently
well-developed for their intended task ; for example, the role of contamination and its influence on these techniques was...
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00104/21518/19099.pdf
Report on the results of the fifth ICES intercomparison exercise for nutrients in sea water
Provedor de dados: 5
Autores: Aminot, Alain; Kirkwood, Don.
In these increasingly cost-conscious times, tax payers arc entitled to ask whether their national environmental research and
monitoring programmes are delivering value for money, and it is understandable and right that they should. More people than ever
are now inclined to enquire as to the quality of the results of chemical analyses before using them for their intended purpose, and
'Quality Assurance' is a phrase on everyone's lips.
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00087/19868/17519.pdf
Le fluorure en Baie de Seine
Provedor de dados: 5
Autores: Aminot, Alain; Leguellec, A; Mauvais, J.
This paper deals with the water concentrations of fluoride in the bay of Seine outfall. Many graphs report spatial variations and the
results obtained are compared with normal marine values.
Tipo: Text
Palavras-chave: Pollution dispersion; Industrial wastes; River discharge; Marine pollution; Fluorides.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1294.pdf
Apercu sur la biologie du poisson cichlide Tylochromis jentinki jentinki en lagune Ebrie (Cote
d'Ivoire)
Provedor de dados: 5
Autores: Amon-kothias, J B.
In the Ebrie lagoon, the reproductive season of T. jentinki jentinki ranges from August to Februarywith a main spawning period in
November, which is related to the rising of lagoon water level. The size of both males and females at first sexual maturity is about
160 mm fork-length. Each female of T. jentinki jentinki lays between 110 and 420 eggs depending on the size. It represents an
average of about 1,100 eggs/kg weight. The female keeps the eggs in its mouth: this oral incubation reaches an average of 15 days
at the end of which the released fry measures from 12 to 20 mm fork length. The species growth in length has been studied by
examination of scales structures (circuli and annuli). This growth, compared to other cichlids is relatively slow....
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00246/35708/34217.pdf
Geochemical investigation of Pt, Pd, Rh, Ru and Au in cobalt-rich deposits from the Tuamotu Plateau
(French Polynesia)
Provedor de dados: 5
Autores: Amosse, J; Le Suave, R.
Pt, Pd, Rh, Ru and Au contents were determined in 35 samples of hydrogenous ferromanganese crusts and nodules from the
Tuamotu Plateau (French Polynesia), collected during the Nodco II cruise undertaken by IFREMER during March 1987. These
samples are characterized by high Pt and Rh contents. A statistical analysis including PGE and data on Mn, Fe, Ni, Co and Cu
contents does not reveal significant correlations between the elements. Although meteoritical origin of PGE remains possible, the
process of fractionation and deposition is probably hydrogenetic as confirmed by normalization diagrams to chondrite C1. This
point of view is supported by the determination of some partition coefficients of PGE between the oxidized phase and the aqueous
medium. The...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00268/37911/35992.pdf
Hydrogen-peroxide determination in estuarine and marine waters by flow-injection with fluorescence
detection
Provedor de dados: 5
Autores: Amouroux, D; Donard, Ofx.
The Scopoletin-Peroxidase fluorescence decay method has been developed using standard additions and a flow injection manifold
for hydrogen peroxide (H2O2) determination in marine waters. The limit of detection of the method was optimized using stored
milli-Q water with a minimum of 5 nM (3 sigma). The method was found to be linear from 5 to 700 nM, with an approximate
relative standard deviation of 10%. This accuracy was verified on both milli-Q and natural waters running systematically duplicate
analysis. The validity and the sensitivity of the technique was studied through the influence of pH, salinity and the dissolved
organic matter (DOM) concentration. Standard additions avoided all matrix and experimental interferences, making it possible to
use this...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00097/20784/18409.pdf
REMI réseau de contrôle microbiologique des zones de production conchylicole impression 2009
Provedor de dados: 5
Autores: Amouroux, Isabelle.
The coastal environment is subject to multiple sources of contamination: urban wastewater, malfunctioning of collective or
individual purification systems, discharge of pollutants from industry, contaminated runoff from agriculture areas. Bivalve
mollusks are filter feeders, they concentrate the microorganisms naturally or accidentally present in the surrounding sea water.
The presence of potentially pathogenic bacteria or viruses in coastal waters (Salmonella, Vibrio parahaemolyticus, Vibrio
cholerae, hépatitis A virus) may constitute a risk for molluscan shellfish consumers (gastroenteritis, viral hepatitis).
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00014/12571/9440.pdf
REMI : French microbiological monitoring network for shellfish growing areas.
Provedor de dados: 5
Autores: Amouroux, Isabelle.
The microbiological monitoring and classification in Europe is based on faecal indicator E. coli monitoring in live bivalve
mollusc. As a result of the implementation of the microbiological threshold defined by European legislation since 01/01/2006,
almost all A quality areas have disappeared, and most areas show B quality. Percentage-wise, the C quality category is more
frequently observed for areas with burrowing bivalves like clams and cockles. From these results, a few elements can be pointed
out : - firstly : the contamination levels are different between the burrowing and non burrowing bivalves. Thus, it is important to
examine separately the evolution for each type of species. The evolution since 1989 shows for the oyster and mussels an...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00014/12566/9434.pdf
AQUAREF - Opérations d’échantillonnage en milieu marin dans le cadre des programmes de
surveillance DCE (matrices : eau, sédiment et biote) - Recommandations techniques – Edition 2015
Provedor de dados: 5
Autores: Amouroux, Isabelle; Claisse, Didier.
Ce guide a été réalisé dans le cadre du programme d'activité AQUAREF pour l'année 2015, thème C «Améliorer les opérations
d’échantillonnage » - Action C2a – Guide technique échantillonnage en milieu marin. Ce guide regroupe les recommandations
techniques d’AQUAREF pour la réalisation des opérations d’échantillonnage dans les programmes de surveillance chimique liés à
la Directive Cadre sur l’Eau (DCE). Il peut également être utilisé dans d’autres contextes de surveillance ou de diagnostic des
milieux. Il s’adresse aux organismes d’échantillonnage ainsi qu’aux commanditaires de prestations d’échantillonnage qui pourront
utiliser les recommandations techniques d’AQUAREF pour élaborer leurs cahiers des charges. Il formule différentes
recommandations en...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00333/44380/43993.pdf
Comparison of microbiological contamination level between different species of shellfish
Provedor de dados: 5
Autores: Amouroux, Isabelle; Soudant, Dominique.
The French microbiological monitoring network (REMI) has been carried out since 1989 in order to assess faecal contamination
levels (Escherichia coli) of shellfish production areas. It has been shown that species growing at the same site may show
differences in microbiological contamination. The aim of this study is to investigate these differences and to examine how it can
be used in the context of monitoring networks, notably in identifying indicator species. We would expect an indicator species to
yield results at least as high as those of the other species present. Of the 372 monitoring points defined in the REMI in 2011, 20
points are sampled at the same time for at least two different species of shellfish, usually on a monthly basis. This study was...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00176/28731/27199.pdf
Interrelations in a microcosm with a suspension-feeder and a deposit-feeder.I : experimental-study
Provedor de dados: 5
Autores: Amouroux, Jm; Amouroux, J; Bastide, J; Cahet, G.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00103/21423/19000.pdf
Interrelations in a microcosm with a suspension-feeder and a deposit-feeder. II: Modeling
Provedor de dados: 5
Autores: Amouroux, Jm; Amouroux, J; Bastide, J; Cahet, G; Gremare, A.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00103/21432/19005.pdf
Experimental-study of the interactions between a natural C-14 radiolabeled sediment and a
deposit-feeding bivalve : Abra alba
Provedor de dados: 5
Autores: Amouroux, Jm; Gremare, A; Cahet, G.
Changes of radioactivity in a natural C-14 labelled sediment were monitored over a 120-hour period in the presence and in the
absence of the deposit-feeding bivalve Abra alba. In both cases, the sediment showed great instability during the first ten hours of
the experiment. The consequences of this result on the experimental protocol used for the study of the interactions between natural
sediments and deposit-feeders are discussed. In controls, the instability is produced by an initial decrease of radioactivity in the
sediment, whereas in the presence of Abra alba, it corresponds to an initial increase of radioactivity. Analysis of previously
published data suggests that such responses may result from the inhibition or the stimulation of the bacterial...
Tipo: Text
Palavras-chave: DEPOSIT-FEEDER; MODELING; METHODOLOGY; NUTRITION; C-14.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21278/18887.pdf
Projet de recherche sur l'identification de nouveaux composés toxiques dans les coquillages
Provedor de dados: 5
Autores: Amzil, Zouher.
ln November 1992, an event affecting Shellfish health received extensive media coverage: an unknown toxin had been detected in
oysters from the bay of MarennesOleron (France). This phenomenon remains unexplained to this day. Since then, a growing
number of observations obtained in the context of the REPHY phytoplankton monitoring network, have reported a mouse-active
substance found in Shellfish and belonging to none of the known phycotoxin classes. These observations have been reported in
France as weil as abroad (Canada, Norway, Ireland, New Zealand ... ). Mice treated intraperitoneally with the DSP screening testexhibit neurological symptoms with disorders of the central nervous system leading to early death (within 5 to 10 minutes).
Several hundred...
Tipo: Text
Palavras-chave: Toxicité atypique; Test-souris; Neurotoxicité; Identification de principe(s) actif(s); Atypical toxicity;
Mouse-test; Neurotoxicity; Identification of active principle( s).
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00156/26732/24813.pdf
Cytodétection des phycotoxines diarrhéiques - Une alternative au test de toxicité aiguë sur souris pour
la surveillance de la salubrité des coquillages
Provedor de dados: 5
Autores: Amzil, Zouher.
The cytodetection test of diarrheic phycotoxin KB-cells (DRAME test) was developed to ultimately provide a substitute for the
acute toxicity mouse-test currently used by IFREMER's phytoplankton monitoring network (REPHY). The cyctodetection test
relies on the cell morphological changes induced by the phosphorylation of cytoskeleton proteins resulting from the inhibition of
cell protein-phosphatases by okadaic-type toxins. The method is specific, sensitive and fast with results given on the same day. In
addition, the method has been shown to produce a good correlation with the acute toxicity mouse-test as weil as with HPLC
analyses of diarrheic phycotoxins. The cytodetection test was awarded the only Special Prize of the Jury at the 6th AMAL THEE
Awards...
Tipo: Text
Palavras-chave: Acide okadaïque; Inhibition des protéines phosphatases; Cytodétection; Cellules KB; Okadaic acid; Inhibition of
protein-phosphatase; Cytodeteciton KB-cells.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00156/26730/24811.pdf
Toxicité inexpliquée des moules de la baie de Lazaret (Toulon) entre novembre 1993 et mai 1994
Provedor de dados: 5
Autores: Amzil, Zouher; Marcaillou-le Baut, Claire; Bohec, Madeleine.
Depuis janvier 1993, des épisodes de forte toxicité des coquillages ont été observés lors des contrôles de routine en différents
points des côtes françaises. Les souris ayant reçu des extraits de coquillages, par voie intrapéritonéale, présentaient des symptômes
de type neurologique et mouraient au bout de 5 à 15 minutes. Cette toxicité n'a pu être attribuée à l'existence de phycotoxines
connues. Les études préliminaires réalisées sur les glandes digestives de moules toxiques, récoltées lors d'un de ces épisodes (rade
de Toulon), nous ont permis d'acquérir les données suivantes : le principe actif possède une forte polarité, il est thermostable, et il
est stable dans le temps et en milieu acide. L'intoxication par voie orale chez la souris a permis de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00075/18596/16149.pdf
Contamination en dinophysistoxines des moules de Bretagne sud Mise en évidence des dérivés
acyls-esters de l'acide okadaïque (DTX-3) Etude comparative : analyses chimiques, tests biologiques et
concentrations cellulaires de Dinophysis
Provedor de dados: 5
Autores: Amzil, Zouher; Mathias, Amaury.
Ifremer monitoring network for phytoplankton and phycotoxins (REPHY) is in charge of shellfish safety control and carries out
shellfish toxicity test on mice as soon as Dinophysis cells (okadaic acid "OA" producer) are observed in sea water. However, this
test can neither identify or quantify the diarrhetic toxins OA and its analogues (DTX-1, DTX-3). Only a chemical analysis is able
to detect them. At first, the shellfish extraction procedure used for mouse-tests was optimised in order to adjust it for OA/DTX-1
chemical analysis. Due to the Iack of standard, DTX-3 quantification is clone indirectly after a hydrolysis stage releasing OA.
Chemical analysis of shellfish samples collected in 2001 from three locations of "Long-line Mussel Farming" of southern...
Tipo: Text
Palavras-chave: Acide okadaïque (AO); 7-0-acyl-AO (DTX-3); Moule; Dinophysis; Analyse chimique.; Okadaic acid (OA);
7-0-acyl-OA (DTX-3); Musset; Dinophysis; Chemical analysis.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00132/24282/22280.pdf
Toxines amnésiantes en France - Analyse par CLHP de l'acide domoïque et ses isomères - Bilan 1999
de la surveillance des toxines amnésiantes lié aux efflorescences à Pseudo-nitzschia toxiques
Provedor de dados: 5
Autores: Amzil, Zouher; Motteau, Lydie.
Dans le cadre du réseau de surveillance français en matière de toxines amnésiantes, l'acide domoïque a été détecté pour la
première fois dans des échantillons de coquillages. En effet, le dosage de lacide domoïque (AD) par Chromatographie Liquide
Haute Performance couplée à un détecteur Ultra Violet (CLHP/UV), méthode officielle, dans la partie comestible des bivalves est
effectué dès que le seuil de 105 cellules par litre de diatomée du genre Pseudo-nitzchia spp. est dépassé. Les analyses réalisées
pendant l'année 1999 ont révélé la présence de l'acide domoïque dans des bivalves prélevés en différents points des côtes
françaises. Toutefois, la quantité maximale de toxine trouvée ne dépassait pas 3,2 µg d'AD par g de chair totale de coquillages, ce
qui est...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00104/21574/19154.pdf
First report on amnesic and diarrhetic toxins detection in French scallops during 2004-05 monitoring
surveys
Provedor de dados: 5
Autores: Amzil, Zouher; Royer, Florence; Sibat, Manoella; Fiant, Liliane; Gelin, Muriel; Le Gal, Dominique; Francoise,
Sylvaine.
In the context of the French phytoplankton and phycotoxins monitoring network (REPHY), shellfish scallops were harvested
systematically during the authorised fishing season for the purpose of investigating paralytic toxins (PSP-mouse test), amnesic
toxins (ASPchemical analysis), and lipophilic toxins (DSP-mouse test). For all shellfish samples that tested positive in the DSP
mouse bioassay used for lipophilic toxins detection, liquid chromatography coupled with mass spectrometry (LC-MS/MS) was
used to search for the following lipophilic toxins: okadaic acid, dinophysistoxins, pectenotoxins, azaspiracids, yessotoxins,
spirolides, and gymnodimine. In order to investigate the presence of okadaic acid esters (DTX3), alkaline hydrolysis was
performed on all...
Tipo: Text
Palavras-chave: Scallops; Domoic acid; Okadaic acid and derivatives; Dinophysis.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00015/12577/9447.pdf
Ovatoxin-a and Palytoxin Accumulation in Seafood in Relation to Ostreopsis cf. ovata Blooms on the
French Mediterranean Coast
Provedor de dados: 5
Autores: Amzil, Zouher; Sibat, Manoella; Chomerat, Nicolas; Grossel, Hubert; Marco-miralles, Francoise; Lemee, Rodolphe;
Nezan, Elisabeth; Sechet, Veronique.
Dinoflagellates of the genus Ostreopsis are known to cause (often fatal) food poisoning in tropical coastal areas following the
accumulation of palytoxin (PLTX) and/or its analogues (PLTX group) in crabs, sea urchins or fish. Ostreopsis spp. occurrence is
presently increasing in the northern to north western Mediterranean Sea (Italy, Spain, Greece and France), probably in response to
climate change. In France, Ostreopsis. cf. ovata has been associated with toxic events during summer 2006, at Morgiret, off the
coast of Marseille, and a specific monitoring has been designed and implemented since 2007. Results from 2008 and 2009 showed
that there is a real danger of human poisoning, as these demonstrated bioaccumulation of the PLTX group (PLTX and
ovatoxin-a)...
Tipo: Text
Palavras-chave: Ostreopsis cf. ovata; Palytoxin; Ovatoxin-a; LC-MS/MS; Seafood.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00071/18230/15799.pdf
Report on the first detection of pectenotoxin-2, spirolide-A and their derivatives in French shellfish
Provedor de dados: 5
Autores: Amzil, Zouher; Sibat, Manoella; Royer, Florence; Masson, Nadine; Abadie, Eric.
In the context of the French Phytoplankton and Phycotoxins Monitoring Network (REPHY) programme, shellfish samples were
harvested from different locations where harmful algae blooms were known to have occurred. For all shellfish samples found
positive by the mouse bioassay for diarrhetic shellfish poisoning (DSP) toxins, liquid chromatography (LC) coupled with mass
spectrometry (MS) was used to search for the following lipophilic toxins: okadaic acid (OA), dinophysistoxins (DTXs),
pectenotoxins (PTXs), azaspiracids (AZAs), yessotoxins (YTXs), spirolides (SPXs) and gymnodimines (GYMs). In order to
investigate the presence of acyl-OAs and/or acyl-DTX-1,-2 (DTX-3), alkaline hydrolysis was performed on all samples, and LC/
MS analyses were carried out on the...
Tipo: Text
Palavras-chave: LC/MS analysis; Pectenotoxins; Spirolides; DSP toxins.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6206.pdf
First report on azaspiracid and yessotoxin groups detection in French shellfish
Provedor de dados: 5
Autores: Amzil, Zouher; Sibat, Manoella; Royer, Florence; Savar, Veronique.
The French Phytoplankton and Phycotoxins monitoring network (REPHY) recently found positive or dubious negative shellfish
samples using lipophilic toxins mouse bioassay. These samples were analyzed by liquid chromatography (LC) in combination
with mass spectrometry (MS) to detect the following toxins: okadaic acid (OA), dinophysistoxins (DTXs), pectenotoxins (PTXs),
azaspiracids (AZAs), yessotoxins (YTXs), spirolides (SPXs) and gymnodimines (GYMs). Over the 2006-2007 period, chemical
analyses revealed various lipophilic toxin profiles according to shellfish sampling locations. In addition to OA and/or PTX-2 and
their derivatives, several other compounds were found for the first time in France: (1) during the summer of 2006, AZA-1 and
AZA-2 in Queen...
Tipo: Text
Palavras-chave: LC MS/MS analyses; Shellfish; Yessotoxin group; Azaspiracid group; Lipophilic toxins.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4560.pdf
Monitoring of trace metal contamination in the Souss estuary (South Morocco) using the clams
Cerastoderma edule and Scrobicularia plana
Provedor de dados: 5
Autores: Anajjar, E; Chiffoleau, Jean-francois; Bergayou, H; Moukrim, A; Burgeot, Thierry; Cheggour, M.
Concentrations of seven metals (Cd, Cu, Cr, Pb, Ni, Zn, Hg) were monitored monthly during 2 years in two bivalves,
Cerastoderma edule and Scrobicularia plana collected from the Souss estuary (South Morocco) before and after the
commissioning of a sewage treatment plant in November 2002. According to trace metals, changes in concentrations were
observed mainly in S. plana, characterised by a decrease of Cu, Hg and Pb when Cd was clearly increasing. Conversely, no clear
changes were observed in C. edule during the same periods. This study suggests the use of S. plana in the monitoring of trace
metal contamination of such coastal marine environments.
Tipo: Text
Palavras-chave: Monitoring; Waste water; Bivalves; Metals; South estuary.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4515.pdf
A parametrization of the geometry of sea straits
Provedor de dados: 5
Autores: Anati, Da.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00122/23281/21110.pdf
Rapport préliminaire sur la campagne de la "Thalassa" en mer de Norvège et mer de Barents 28
octobre - 15 décembre 1961
Provedor de dados: 5
Autores: Ancellin, Jacques.
La campagne organisée au titre du plan de relance de la pêche maritime au large de la Norvège, avait pour objet la prospection des
fonds de pêche situés entre Rostbank et Fugloybank (de 67°5N 10°5 E Gr. à 71° N 18° E Gr.).
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/1962/publication-7070.pdf
Observations sur la faune et les fonds de pêche de quelques secteurs de la manche et des mers
nordiques
Provedor de dados: 5
Autores: Ancellin, Jacques.
1. The Svinö bank, mostly made up of a shelf limited by the isobath 200 m, is located along the Norwegian coast, off the Stat cape
and the Romsdael islands, between L. N. 62° and 63°15' approximately. It is limited to the north-west by some steep slopes, to the
west by muddy bottoms with a gentler slope.2. The hydrological regime is mostly characterized by the contrast between costal
waters, with a low salinity, and offshore waters, around the slopes of the bank, coming from the Atlantic Ocean. The Boreal
regime (waters at 6~7°C,) observed all year long throughout the whole bank contrasts with the Arctic regime (water temperature
lower than O°C) observed at depths lower than 600-800 m. An overall current directed to the northeast seems to run from the...
Tipo: Text
Ano: 1957
URL: http://archimer.ifremer.fr/doc/1957/publication-4641.pdf
Compte rendu préliminaire de la campagne de marquages de harengs à bord de "Président Théodore
Tissier" (Novembre 1957)
Provedor de dados: 5
Autores: Ancellin, Jacques.
Au cours du mois de Novembre 1957 des marquages de harengs dans le sud de la Mer du Nord et en Manche Orientale conformément au programme annoncé dans le présent Bulletin d'information (1) - ont été effectués à bord du "Président Théodore
Tissier". Cette opération, ayant comporté au total 11.500 marquages, représente une part de la contribution française aux
recherches internationales entreprises sur le hareng de la Mer du Nord dont on peut craindre - depuis quelques années - une
diminution du stock due à la pêche.
Tipo: Text
Ano: 1958
URL: http://archimer.ifremer.fr/doc/1958/publication-7214.pdf
Considérations sur les harengs du sud de la Mer du Nord et de la Manche Orientale (Résumé
d'observations faites de 1945 à 1956)
Provedor de dados: 5
Autores: Ancellin, Jacques.
La présente étude se rapporte aux harengs qui font chaque hiver, du début de novembre à la fin de février, l'objet de la pêche
boulonnaise et dont les concentrations intéressent un secteur géographique s'étendant principalement depuis les Bancs des
Flandres jusqu'à la région située au large des côtes des départements de la Somme et de la Seine-Inférieure (extrémité sud de la
Mer du Nord et partie orientale de la Manche).
Tipo: Text
Ano: 1957
URL: http://archimer.ifremer.fr/doc/1957/publication-7222.pdf
Le hareng du sud de la mer du nord et de la manche orientale
Provedor de dados: 5
Autores: Ancellin, Jacques.
In this work, we gathered the results of the studies carried out on the herrings of the south of the North Sea and the eastern English
Channel during the winter fisheries of 1946-50.
Tipo: Text
Ano: 1951
URL: http://archimer.ifremer.fr/doc/1951/publication-6736.pdf
Observations sur le hareng du sud de la Mer du Nord et de la Manche orientale. Campagne d'hiver
1957-58
Provedor de dados: 5
Autores: Ancellin, Jacques.
La présente note d'information concerne le hareng du Sud de la Mer du Nord et de la Manche orientale, lequel est chaque année,
au moment de la saison de pêche d'automne et d'hiver, l'objet d'études biométriques et statistiques.
Tipo: Text
Ano: 1958
URL: http://archimer.ifremer.fr/doc/1958/publication-7203.pdf
Rapport préliminaire sur la campagne de la "Thalassa" dans l'atlantique nord-ouest (Golfe du
Maine, banc Georges, Nouvelle-Ecosse, chenal laurentien) 11 juillet - 10 septembre
Provedor de dados: 5
Autores: Ancellin, Jacques.
Cette campagne, venant après celle de 1961 dans le secteur du Grand-Banc de Terre-Neuve et du banc Saint Pierre (1), devait
permettre de continuer la prospection des fonds chalutables en direction du sud-ouest, dans la région comprise entre le golfe du
Maine et le chenal laurentien (de 70°35' à 56° O Gr.).
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/1962/publication-7056.pdf
Observations sur le hareng du sud de la Mer du Nord et de la Manche orientale - Campagne d'hiver
1959-60
Provedor de dados: 5
Autores: Ancellin, Jacques.
Comme les années précédentes les rendements de la pêche du hareng au cours de la campagne d'hiver 1759/60 n'ont pas dépassé
10 tonnes par jour et par bâteau, ce qui représente une diminution d'environ 50 % par rapport aux rendements observés
immédiatement après la guerre.
Les jeunes harengs de 3 ans représentaient 73% du stock, ce qui constituait un rapport
exceptionnellement élevé. Ce phénomène, joint à la diminution de la taille par âge, expliquait la présence de nombreux harengs de
petite taille. Comme il a été constaté au cours des précédentes années, le rajeunissement considérable du stock et les faibles
rendements de la pêche ne sont pas de très bon augure pour la prochaine campagne d'hiver. Néanmoins, la classe des harengs de 4
ans est appelée à...
Tipo: Text
Ano: 1960
URL: http://archimer.ifremer.fr/doc/1960/publication-7188.pdf
L'influence de la pêche sur le stock de harengs - Quelques considérations rétrospectives et état actuel
de la question
Provedor de dados: 5
Autores: Ancellin, Jacques.
En 1953 nous avions fait paraître dans le journal "La Pêche Maritime" un article intitulé : "Peut-on parler d'"Overfishing" du
hareng ? " ; nous résumions dans cet article les résultats des observations effectuées au cours des précédentes campagnes
harenguières dans le sud de la Mer du Nord et en Manche Orientale, et nos conclusions nous conduisaient à admettre comme
plausible l'hypothèse d'une influence de la pêche sur le stock de harengs dans ce secteur.
Tipo: Text
Ano: 1958
URL: http://archimer.ifremer.fr/doc/1958/publication-7213.pdf
Observations sur le hareng du sud de la Mer du Nord et de la Manche Orientale (Campagnes d'hiver
1960-61 et 1961-62)
Provedor de dados: 5
Autores: Ancellin, Jacques.
Les chalutiers industriels de 300/500 tx ont travaillé sur le Vergoyer et le Sandettié pendant la deuxième quinzaine de novembre ;
la pêche s'est poursuivie sur le Sandettié jusqu'à la mi-décembre. La région de l'Ailly a été exploitée pendant une quinzaine de
jours, de la fin de novembre au début de décembre.
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/1962/publication-7052.pdf
Etude comparative des harengs immatures de la baie du Mont Saint-Michel et de la baie de Seine et
du sud de la mer du nord (bancs des Flandres)
Provedor de dados: 5
Autores: Ancellin, Jacques.
In this work, we compared some observations on some green herrings from the south of the North Sea and the English Channel.
The comparison between their size, age and growth enabled us to define some of the main characters defining the herring
populations cruising these areas.
Tipo: Text
Ano: 1953
URL: http://archimer.ifremer.fr/doc/1953/publication-6741.pdf
Hareng. Statistiques biologiques et considérations sur les populations de harengs de la Manche
orientale et du sud de la mer du Nord (matériel prélevé en 1945-46)
Provedor de dados: 5
Autores: Ancellin, Jacques.
Le laboratoire de Boulogne-sur-Mer, après avoir vu ses travaux interrompus pendant cinq années et subi une destruction totale au
cours de la guerre, a néanmoins repris en partie son activité. Au cours de l'hiver 1945-46, nous avons poursuivi les recherches
entreprises depuis 1926 sur les populations de Harengs de la Manche orientale et du Sud de la Mer du Nord, suivant la technique
mise au point par M. J. LE GALL, Directeur de l'Office Scientifique et Technique des Pêches Maritimes. Nous exposons ici le
résultat de nos observations qui ont surtout porté sur les pêcheries de harengs du Sud de la Mer du Nord.
Tipo: Text
Ano: 1948
URL: http://archimer.ifremer.fr/doc/00038/14963/12290.pdf
Compte rendu préliminaire de la campagne du "Président-Théodore-Tissier" à l'ouest et au
nord-ouest des îles Britanniques - Août-Octobre 1959
Provedor de dados: 5
Autores: Ancellin, Jacques; Faure, Louis.
Au cours des mois d'août, septembre et octobre 1959 le navire océanographique "Président-Théodore-Tissier" a effectué, à l'ouest
et au nord-ouest des îles Britanniques, une campagne qui avait pour but : de prospecter les fonds de pêche au chalut au nord de
l'Irlande (exploités avant la guerre par les pêcheurs boulonnais), en s'attachant plus spécialement à la détection aux ultra-sons des
bancs de harengs, avec extension de cette prospection au secteur des îles Hébrides ;
de rechercher d'éventuels fonds à langouste
(espèce qui s'étend actuellement vers le nord) au nord de l'Irlande et à l'ouest des îles Hébrides ; d'établir, spécialement pour la
pêche du merlu, un relevé des fonds supérieurs à 200 m aux accores du plateau continental entre 55°N et 60°30...
Tipo: Text
Ano: 1960
URL: http://archimer.ifremer.fr/doc/1960/publication-7194.pdf
Recherches concernant le chalutage pélagique à un seul bateau
Provedor de dados: 5
Autores: Ancellin, Jacques; Nedelec, Claude.
Les inconvénients résultant du chalutage pélagique à deux bateaux (difficultés de manoeuvre, manque d'autonomie) incitent les
pêcheurs à rechercher un mode pratique d'utilisation d'un chalut flottant trainé par un seul bateau. Des expériences récentes faites
en Allemagne ont permis d'apporter dans ce domaine des améliorations importantes dont nous rendons compte ici. Les résultats
obtenus ont été essentiellement liés : 1°) à l'emploi d'un train de pêche spécial (en particulier panneaux d'écartement Süberkrüb)
permettant de régler la profondeur d'action du chalut, en augmentant ou en diminuant la vitesse de chalutage ; 2°) à l'utilisation
d'une "Netzsonde", sondeur à ultra-sons fixé sur la corde de dos du chalut qui permet de connaître au cours de la pêche...
Tipo: Text
Ano: 1960
URL: http://archimer.ifremer.fr/doc/1960/publication-7191.pdf
Marquage de harengs en mer du nord et en manche orientale (campagne du Président Théodore
Tissier, novembre 1957)
Provedor de dados: 5
Autores: Ancellin, Jacques; Nedelec, Claude.
A tagging survey of herring took place in November 1957 in the southern part of the North Sea and in the eastern English Channel
on board the research vessel the "Président-Théodore-Tissier". This survey aimed to contribute to international research efforts to
determine if herring stocks are over-exploited. In all, 11 648 herrings were tagged, using French- and foreign-designed tags, in the
Sandettié area off Cape Blanc-Nez, on the Vergoyer shoals and at Cape Ailly. Three hundred and sixty seven recaptures (3.15%)
were recorded during the 14 month period following tagging....
Tipo: Text
Ano: 1959
URL: http://archimer.ifremer.fr/doc/1959/publication-4489.pdf
La pêche aux Iles Saint-Pierre et Miquelon - rapport de mission (Mai-Juillet 1951)
Provedor de dados: 5
Autores: Ancellln, Jacques.
Answering a demand from the Councillor of the Republic Mr. Claireaux, and during the 11th cruise of the research vessel
Président Théodore Tissier, we have been sent on a few-month-mission to the islands of Saint-Pierre-et-Miquelon to study cod
fishing.
Tipo: Text
Ano: 1955
URL: http://archimer.ifremer.fr/doc/1955/publication-6621.pdf
Etude in situ et expérimentale de perturbations du système endocrinien chez un mollusque, un
crustacé et deux poissons marins et / ou estuariens sous l'influence de quelques métaux (Cd, Pb, Cu,
Zn)
Provedor de dados: 5
Autores: Andersen, A.; Amiard, Jean-claude; Amiard-triquet, Claude; Ferrand, R.; L'Hermite, A.; Metayer, C.
Les tests écotoxicologiques qualifiés de sub-léthaux se rapportant aux perturbations des grandes fonctions physiologiques, mettent
bien souvent en oeuvre au laboratoire des concentrations de polluants infiniment supérieures à celles susceptibles d'être
rencontrées dans les milieux marins même les plus pollués, à l’exception de déversements accidentels massifs. Nous avons pensé
pouvoir nous rapprocher davantage des conditions naturelles du milieu en étudiant des altérations des mécanismes les plus intimes
de la vie animale tels que des perturbations du système endocrinien chez des organismes soumis- à une pollution métallique.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00151/26196/24215.pdf
Influence of the intermoult cycle on the metal bioaccumulation by the shrimp: Crangon crangon L.
Provedor de dados: 5
Autores: Andersen, C; Thibaud, Yves; Alzieu, Claude.
At the various intermolt stages (A, B, C, D) the cephalothorax, abdominal muscle, exoskeleton and legs of shrimp Crangon
crangon L.from the Seine Bay estuary have been analyzed for Hg, Cd, Cu, Fe and Zn. A statistical test of the results of the metal
analyses, and the variations of the concentrations during the intermolt cycle are used to estimate to what extent the shrimp is a
representative indicator of its environment.
Tipo: Text
Palavras-chave: Crangon crangon Malacostraca Pollutant identification Marine crustaceans Bioaccumulation Heavy metals.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1799.pdf
Vertical distributions of macroplankton and micronekton in the Ligurian and Tyrrhenian Seas
(northwestern Mediterranean)
Provedor de dados: 5
Autores: Andersen, V; Francois, F; Sardou, J; Picheral, M; Scotto, M; Nival, Paul.
Vertical distributions and diel migrations at nineteen stations located in the Ligurian and Tyrrhenian Seas (northwestem
Mediterranean) are described in detail and compared for the main species of micronekton and macroplankton. Sampling was
performed in April 1994 in the 0-700 m water column in most cases, down to 350, 450 or 550 m for the coastal or relatively
shallow sites. Most of the twenty species showed similar distributions throughout the sampled area, either non-diel-migrating
distributions such as the euphausiid Stylocheiron longicorne and the fish Cyclothone braueri, or clear diel-migrant behaviour (e.g.
the siphonophore Chelophyes appendiculata and the euphausiid Euphausia krohni). Four species, the siphonophore Lensia
conoidea, the pteropods...
Tipo: Text
Palavras-chave: Distribution verticale; Macroplancton; Micronecton; Mer Méditerranée; Mer Tyrrhénienne; Vertical distribution;
Macroplankton; Micronekton; Mediterranean Sea; Tyrrhenian Sea.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00325/43650/43222.pdf
Modele d'ecosysteme pelagique des eaux cotieres de la Mer Ligure
Provedor de dados: 5
Autores: Andersen, V; Nival, P.
A simplified model of the pelagic ecosystem of the coastal surface waters (0 to 20 m) of the Ligurian Sea (Mediterranean) is
described. Phytoplankton, copepods, salps, chaetognaths, dissolved inorganic nitrogen and particulate organic matter are
considered. The system is open (winter input of deep nutrients and sedimentation of particulate organic matter) and is influenced
by temperature and irradiance. This model simulates the typical annual variation of the plankton in the considered area.
Nevertheless, a simulation during five years shows that, in contrast with the other state variables, salps and chaetognaths have an
unstable behaviour. We assume that these organisms migrate in the superficial waters.
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00267/37815/35896.pdf
Chemical-constituents of the arctic ocean in the svalbard area
Provedor de dados: 5
Autores: Anderson, L; Dryssen, D.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00131/24198/22191.pdf
Excess calcium and alkalinity in the baltic and southern kattegatt
Provedor de dados: 5
Autores: Anderson, L; Dyrssen, D.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00121/23215/21056.pdf
Determination of alkalinity and total carbonate in seawater by photometric titration
Provedor de dados: 5
Autores: Anderson, L; Wedborg, M.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00120/23123/20970.pdf
Water masses and their chemical-constituents in the western nansen-basin of the arctic-ocean
Provedor de dados: 5
Autores: Anderson, Lg; Jones, Ep.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00110/22115/19753.pdf
Comparison of potentiometric and photometric titration methods for determination of alkalinity and
total carbonate in seawater
Provedor de dados: 5
Autores: Anderson, Lg; Wedborg, M.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00112/22290/19965.pdf
Bases scientifiques et techniques d’un observatoire du changement global en mer
Provedor de dados: 5
Autores: Andral, Bruno.
La Méditerranée constitue un des pôles mondiaux de biodiversité et un lieu clé des changements climatiques globaux, avec des
taux de réchauffement constatés en surface parmi les plus élevés de la planète (~+ 0.06°C/an). Nous pouvons en constater
aujourd’hui les premiers symptômes : transformation des écosystèmes et habitats, augmentation de la température de l’eau et son
cortège d’espèces exotiques, espèces invasives animales et végétales et leurs impacts sur les espèces indigènes. Les îles, par leur
taille, et du fait qu’elles sont moins soumises aux pressions anthropiques directes, sont des laboratoires idéaux pour suivre
l’impact des changements globaux sur la biodiversité, sans être perturbé par des effets locaux. Dans le cadre de l'initiative
"Petites...
Tipo: Text
Palavras-chave: Changement global; Biodiversité; Communautés benthiques; Poissons; Phytoplancton.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00233/34388/32782.pdf
Données sur le comportement et les effets des produits phytosanitaires dans l'environnement
Provedor de dados: 5
Autores: Andral, Bruno.
Le manque de données validées sur les matières actives communément utilisées en agriculture et les problèmes d'interprétation
rendent difficile l'évaluation des risques liés à l'usage des pesticides et à leur transfert en milieu marin. Un court rappel des
caractéristiques du marché, de la législation et des principaux phénomènes influençant le transfert des produits phytosanitaires
dans les milieux aquatiques est suivi d'une analyse des propriétés intrinsèques communément employées par les experts chargés
de cette évaluation. Une fiche de renseignements liste chacune de ces propriétés, auxquelles s'ajoutent des informations sur la
nature chimique, l'usage, les quantités employées et l'écotoxicité pour une quinzaine de matières actives détectées dans les...
Tipo: Text
Palavras-chave: Matière active pesticide; Devenir; Transfert; Écotoxicité.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00132/24308/22306.pdf
Rapport d'activités 2011 du Laboratoire Environnement Ressources Provence Azur Corse
Provedor de dados: 5
Autores: Andral, Bruno.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00115/22673/20400.pdf
Rapport d'activités 2009 du Laboratoire Environnement Ressources Provence Azur Corse
Provedor de dados: 5
Autores: Andral, Bruno.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00115/22671/20398.pdf
Ecotoxicité du nickel pour les organismes marins
Provedor de dados: 5
Autores: Andral, Bruno.
Selon les différentes données receuillies, le nickel parait beaucoup moins toxique que certains autres métaux lourds comme le
mercure, le cadmium, le chrome... Des essais de toxicité aigue font toutefois apparaître des seuils de toxicité inférieurs au mg/l
notamment chez les crustacés qui semblent les organismes les plus sensibles à ce métal. A des concentrations de l'ordre de 30 à
100µg/l, le nickel exerce des effets inhibiteurs sur la reproduction et le développement embryonnaire de plusieurs espèces
d'invertebrés. Bien que tous les résultats ne concernent que des essais de toxicité réalisés sur des organismes isolés et dans les
conditions du laboratoire, on peut considérer, en comparant les résultats des essais de toxicité les plus défavorables aux...
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00105/21584/19164.pdf
Rapport d’Activités 2013 du Laboratoire Environnement & Ressources Provence Azur Corse
Provedor de dados: 5
Autores: Andral, Bruno.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00241/35268/33783.pdf
Rapport d'activités 2010 du Laboratoire Environnement Ressources Provence Azur Corse
Provedor de dados: 5
Autores: Andral, Bruno.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00115/22672/20399.pdf
Aide à l'élaboration des plans de gestion et politique locale du bassin Rhône Méditerranée &
Corse
Provedor de dados: 5
Autores: Andral, Bruno.
Dans le cadre de la convention signée en 2005, l’Ifremer apporte un soutien technique au groupe littoral mis en place à l’échelle
des districts Rhône Méditerranée et Corse. Ce soutien vient en complément de celui apporté par l’Ifremer au plan national au
Ministère de l’Ecologie, de l’Energie, du Développement Durable et de la Mer. L’Ifremer assure également un rôle relevant de
l’expertise auprès de l’Agence de l’Eau lorsque celle-ci, confrontée à certains problèmes, souhaite disposer d’une analyse
intégrant la somme des connaissances disponibles au niveau de la communauté scientifique, éventuellement appuyée par un "état
de l'art" dans les champs scientifiques correspondants.
Au cours de la période 2008-2009 et dans le cadre de la présente
convention, la...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00028/13912/11078.pdf
Guide méthodologique pour la surveillance des rejets urbains dans les eaux littorales réunionnaises
Provedor de dados: 5
Autores: Andral, Bruno; Cambert, Harold; Turquet, Jean; Ropert, Michel; Duval, Magali; Vermenot, Coralie; Boissery, Pierre;
Talec, Pascal.
Les efforts engagés en matière de lutte contre la pollution domestique au cours des vingt dernières années ont permis de réduire de
façon significative les rejets directs et non épurés à la mer. Malgré cela, les rejets urbains des agglomérations côtières constituent
encore de nos jours l'une des principales contributions à la pollution tellurique du littoral réunionnais. Les eaux urbaines, et en
particulier les eaux usées rejetées bien que traitées, peuvent générer des pollutions ou des nuisances dans l’environnement.
L’impact de ces apports doit être apprécié au regard de la vie marine et des usages littoraux, notamment lorsqu’ils sont situés à
proximité de récifs coralliens très sensibles à toute modification du milieu. Afin d'homogénéiser les pratiques...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00123/23471/21299.pdf
Partenariat Ifremer – Agence de l’Eau Rhône Méditerranée et Corse : Recherche – Surveillance –
Expertise. 15 années au service de la Méditerranée
Provedor de dados: 5
Autores: Andral, Bruno; Fiandrino, Annie; Roque D'Orbcastel, Emmanuelle; Pairaud, Ivane; Galgani, Francois; Gonzalez,
Jean-louis; Bouchoucha, Marc.
L’Ifremer et l’Agence de l’Eau Rhône Méditerranée et Corse ont instruit en 2005 une Convention Cadre qui est venue renforcer et
encadrer le partenariat étroit établi depuis 1995, au travers d’actions comme la mise en oeuvre de réseaux régionaux (Réseau
Intégrateurs Biologiques, Réseau de Suivi Lagunaire) ou la réalisation de la plateforme de modélisation numérique. Cette
convention s’inscrit dans les objectifs du contrat quadriennal de l’Ifremer pour apporter les connaissances nécessaires au
traitement des questions concrètes soulevées par l’activité socioéconomique et valoriser l’expérience et le savoir-faire de l’Ifremer
en menant une politique de partenariat au niveau régional. Le présent rapport dresse le bilan de ces 15 années de partenariat,...
Tipo: Text
Palavras-chave: Partenariat Agence de l’Eau RM&C; Recherche et développement; Surveillance; Avis expertise.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00116/22711/20451.pdf
Contamination chimique des eaux côtières méditerranéennes, les projets MYTILOS et MYTIMED
Provedor de dados: 5
Autores: Andral, Bruno; Galgani, Francois; Cadiou, Jean-francois.
The MYTILOS and MYTIMED project were launched to draw up a preliminary report on coastal chemical contamination on a
Western Mediterranean scale (continental coasts of the Balearic Islands, Sicily, Sardinia, Corsica and Maghreb) and a part of the
Eastern basin (Southern Italian and Sicilian coasts, Greece), based on a standard methodology developed on the French
Mediterranean coast by Ifremer and Rhone Mediterranean & Corsica water board since 1996. From 2004 to 2007, 174
mussel stations were installed and recovered 3 months later along the Mediterranean shores. The analysis of 40 chemical
substances has been carried out on mussel samples. The results show that the most highly impacted areas are urban and industrial
centres and the mouth of major...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00070/18166/15725.pdf
Caractérisation de l'état de référence biologique des masses d'eau côtières au regard de la directive
cadre sur l'eau
Provedor de dados: 5
Autores: Andral, Bruno; Gonzalez, Jean-louis; Cuet, Pascale; Bigot, Lionel; Turquet, Jean; Nicet, Jean Benoit.
Les travaux réalisés ont permis d’obtenir des informations pertinentes pour accompagner le programme lié à la mise en œuvre de
la DCE en milieu marin, notamment le volet lié à la surveillance du compartiment biologique. Les résultats ont confirmé que la
zone récifale devait faire l’objet d’une approche spécifique, compte tenu de la particularité de cet écosystème soumis à des apports
en pesticides et surtout en nitrates d’origine aquifère. Des indicateurs permettent de suivre ce type de pression notamment le δ15N
et le rapport C:N dans des espèces algales devraient être rapidement opérationnels. Les pressions exercées sur le corail peuvent
être également suivies grâce notamment à des méthodes d’investigations réalisées sur certaines espèces comme les...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00028/13914/11084.pdf
Directive Cadre eau - District "Corse" : Contrôles de surveillance/opérationnel (campagne DCE 2009)
Provedor de dados: 5
Autores: Andral, Bruno; Sargian, Peggy.
Les programmes de surveillance liés à la mise en œuvre de la DCE sont coordonnés par le Ministère de l’Ecologie, du
Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin hydrographique ce sont les Agences de
l’eau qui, avec l’Etat, prennent en charge l’application, la mise en œuvre de ces réseaux. Sur la façade méditerranéenne, Ifremer
a assuré pour le compte du Schéma Directeur des Données sur l’Eau la maîtrise d’ouvrage de la deuxième campagne du contrôle
de surveillance et la première campagne du contrôle opérationnel, en coordonnant l’ensemble de l’acquisition des données et de
leur synthèse en collaboration avec de nombreux partenaires : les Universités, des bureaux d’études, des structures locales de
gestion et les...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00028/13918/11086.pdf
Directive Cadre Eau. District "Rhône et Côtiers méditerranéens". Contrôle de
surveillance/opérationnel. Campagne DCE 2009
Provedor de dados: 5
Autores: Andral, Bruno; Sargian, Peggy; Agence de l'Eau Rhône Méditerranée et Corse; Créocéan; Ifremer LER-PAC, LER-LR;
Laboratoire Arago, Banyuls; Université de Nice.
Les programmes de surveillance liés à la mise en œuvre de la DCE sont coordonnés par le Ministère de l’Ecologie, du
Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin hydrographique ce sont les Agences de
l’eau qui, avec l’Etat, prennent en charge l’application, la mise en œuvre de ces réseaux. Sur la façade méditerranéenne, Ifremer a
assuré pour le compte du Schéma Directeur des Données sur l’Eau la maîtrise d’ouvrage de la deuxième campagne du contrôle de
surveillance et la première campagne du contrôle opérationnel, en coordonnant l’ensemble de l’acquisition des données et de leur
synthèse en collaboration avec de nombreux partenaires : les Universités, des bureaux d’études, des structures locales de gestion et
les...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00038/14923/12248.pdf
RINBIO 2009 - Evaluation de la qualité des eaux basée sur l'utilisation de stations artificielles de
moules en Méditerranée : résultats de la campagne 2009
Provedor de dados: 5
Autores: Andral, Bruno; Tomasino, Corinne.
Le Réseau Intégrateurs Biologiques (RINBIO), développé en partenariat avec l’Agence de l’Eau Rhône Méditerranée et Corse
utilise depuis 1996 la technique des stations artificielles de moules pour rendre compte des niveaux de contamination chimique
biodisponibles sur la façade méditerranéenne française. Cette 5ème campagne était également dédiée à la mise en œuvre de la
DCE sur les deux districts Rhône et Côtiers Méditerranéens et Corse conformément à leur SDDE. Elle a ainsi permis pour la
deuxième fois d’évaluer les niveaux de contamination de 29 substances sur les 41 que comptent les annexes IX et X de la DCE et
pour la première fois d’évaluer les niveaux de contamination des pesticides et substances pertinentes retenues à l’annexe IV.
Pour les métaux...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00028/13913/11079.pdf
Echanges côte-large à moyenne échelle au niveau de la pente continentale du Golfe du Lion. Processus
et Modélisation
Provedor de dados: 5
Autores: Andre, Gael.
Dynamics of water mass exchanges between the Gulf of Lions (GoL) and the open sea are driven by several physical processes,
which influence circulation at several spacio-temporal scales. This study, based on a realistic modelling during two years, aims to
bring a better knowledge of circulation and hydrodynamics processes occurring in the NW Mediterranean Sea and in the GoL.
Firstly, the NW Mediterranean Basin circulation modelled during the year 2001 is compared with Sea Surface Temperature (SST)
satellite measurements (AVHRR) and with the MEDATLAS climatology. These comparisons show a good agreement concerning
surface patterns and seasonal variability of the large scale circulation. At lower scale, several processes influence circulation over
the shelf...
Tipo: Text
Palavras-chave: Instabilities; Meso scale variability; Slope current; Hydrodynamical modelling; Gulf of Lions; Mediterranean
Sea; Instabilité; Variabilité méso échelle; Courant de pente; Modélisation hydrodynamique; Golfe du Lion; Mer Méditerranée.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-3673.pdf
Mesoscale slope current variability in the Gulf of Lions. Interpretation of in-situ measurements using
a three-dimensional model
Provedor de dados: 5
Autores: Andre, Gael; Garreau, Pierre; Fraunie, Philippe.
The ECOLOPHY experiments aimed at investigating physical exchanges between coastal and open sea. They were carried out in
June and December 2005 over the shelf-break in the North-eastern part of the Gulf of Lions (Northwestern Mediterranean Sea).
This area is considered to be the generation zone for the eddy and meandering structures of the Northern Current (NC). The
objective of the present work is to examine mesoscale variability of this coastal slope current in the light of available data.
Numerical modeling is used to support the field data analysis. ADCP current measurements over a one-year period show that
mesoscale activity is maximal in late winter, correlating with the seasonal variability of the NC and, also, partly with local winds,
Measured...
Tipo: Text
Palavras-chave: Numerical modeling; Mesoscale variability; Slope Current; Northern Current; Gulf of Lions; Northwestern
Mediterranean Sea.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6461.pdf
Atmospheric corrections and interpretation of marine radiances in czcs imagery, revisited
Provedor de dados: 5
Autores: Andre, Jm; Morel, A.
In a previous study (Bricaud and Morel, Oceanologica Acta, 1987), a reflectance model developed for oceanic Case 1 waters was
introduced into CZCS data processing, mainly with the aim of improving the atmospheric correction scheme and permitting
discrimination between Case 1 and turbid Case 2 waters. The present paper, not limited to CZCS, examines the possible extension
of the use of this reflectance model. In particular, it is proposed that the relationships required in iterative computations when
estimating marine radiances in the four (visible) channels be those which derive from the model rather than the empirical
expressions. Also, in order to ensure an internal coherency, it is proposed to operate the modelled relationships between the
reflectance...
Tipo: Text
Palavras-chave: REMOTE-SENSING; OCEAN COLOR; REFLECTANCE MODEL; PHYTOPLANKTON; AEROSOL.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21260/18871.pdf
Arvor-C: A Coastal Autonomous Profiling Float
Provedor de dados: 5
Autores: Andre, Xavier; Le Reste, Serge; Rolin, Jean-francois.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00002/11302/10299.pdf
Argos-3 Satellite Communication System: Implementation on the Arvor Oceanographic Profiling
Floats
Provedor de dados: 5
Autores: Andre, Xavier; Moreau, Bertrand; Le Reste, Serge.
The scientific community observes the ocean for applications in the fields of oceanography and climate research. In order to
recover in situ data, more than 3,000 profiling floats are operated in the framework of the Argo Program. Each float performs
cycles between the sea surface and a depth of 2,000 meters. Scientific data are gathered while the float is travelling upward from
the depths of the oceans, and are then transmitted via a satellite communication system at the end of each cycle. During its time at
the surface, mainly dedicated to transmissions, the float is vulnerable and subject to drift, which limits its use in many studies.
Moreover, transmission times are becoming longer due to a trend towards high resolution or multi-sensor profiles....
Tipo: Text
Palavras-chave: Buoy observations; In situ oceanic observations; Instrumentation; Sensors; Profilers; Oceanic.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00284/39519/38011.pdf
Tectonic structure, lithology, and hydrothermal signature of the Rainbow massif (Mid-Atlantic Ridge
36°14′N)
Provedor de dados: 5
Autores: Andreani, Muriel; Escartin, Javier; Delacour, Adelie; Ildefonse, Benoit; Godard, Marguerite; Dyment, Jerome; Fallick,
Anthony E.; Fouquet, Yves.
Rainbow is a dome-shaped massif at the 36°14′N nontransform offset along the Mid-Atlantic Ridge. It hosts three
ultramafic-hosted hydrothermal sites: Rainbow is active and high temperature; Clamstone and Ghost City are fossil and low
temperature. The MoMARDREAM cruises (2007, 2008) presented here provided extensive rock sampling throughout the massif
that constrains the geological setting of hydrothermal activity. The lithology is heterogeneous with abundant serpentinites
surrounding gabbros, troctolites, chromitites, plagiogranites, and basalts. We propose that a W dipping detachment fault, now
inactive, uplifted the massif and exhumed these deep-seated rocks. Present-day deformation is accommodated by SSW-NNE
faults and fissures, consistent with oblique...
Tipo: Text
Palavras-chave: Rainbow; Hydrothermal; Serpentinization; Atlantic ridge.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00210/32151/30609.pdf
Un bilan de la télédétection appliquée aux milieux coralliens
Provedor de dados: 5
Autores: Andrefouet, Serge; Maritorena, Stéphane; Loubersac, Lionel.
The aim of this paper is to present in a practical fashion the status of the use of remote sensing for the study of coral reef
environments through the analysis of work published in the years 1980-2000. We review the scales of the potential work and of
that actually conducted, the principal applications and their limiting factors. We detail these limitations which are of a
technological nature (spatial and spectral resolution of sensors), as well as often of a conceptual (role of remote sensing in the
study) or methodological (image processing) nature. The understanding of these limitations, in relation to the reality of the field,
allows identification of work which could be undertaken in the years 2000.
Tipo: Text
Palavras-chave: Télédétection; Récifs coralliens; Cartographie; Bathymétrie; Classification; Segmentation; Remote sensing;
Coral reefs; Mapping; Bathymetry; Classification; Segmentation.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00089/20044/17685.pdf
Effects of microalgal diet on growth, survival, biochemical and fatty acid composition of Ruditapes
decussatus larvae
Provedor de dados: 5
Autores: Andres Aranda-burgos, Jose; Da Costa Gonzalez, Fiz; Novoa, Susana; Ojea, Justa; Martinez-patino, Dorotea.
Successful bivalve larval growth and survival depend on stored reserves provided by diet. The aim of this study was to evaluate
the effects of microalgal diet on growth, survival, together with biochemical and fatty acid composition during larval development
in grooved carpet shell (Ruditapes decussatus). Four mono- and multi-species diets were tested: (1) Isochrysis galbana, Pavlova
lutheri and Chaetoceros muelleri (1:1:1, IPC); (2) I. galbana, P. lutheri and C. muelleri (1:1:2, IP2C); (3) I. galbana and P. lutheri
(1:1, IP); (4) C. muelleri (C). Our results showed that feeding regime greatly influenced larval growth and survival, as well as
biochemical and fatty acid composition. Higher growth and survival rates were observed in the IPC, IP2C and C...
Tipo: Text
Palavras-chave: Ruditapes; Decussatus; Larvae; Diets; Biochemistry; Fatty acids.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00161/27261/25470.pdf
Phytoplancton des zones myticoles de la baie de Vilaine et intoxication par les coquillages.
Provedor de dados: 5
Autores: Andresen Leitao, Maria Da Paz; Lassus, Patrick; Maggi, Pierre; Le Baut, Claire; Chauvin, Jacky; Truouet, Philippe.
Following 1978 and 1981 human poisoning by mussels in Vilaine Bay (France) a survey of potentially toxic dinoflagellates was
conducted in that area in 1982. At the same time paralytic shellfish poison (PSP) analyses were made, the authors studied the
dinoflagellates encountered in the intestinal guts of mussels from January to August 1982. Results failed to demonstrate an
occurrence of PSP producing species, either by toxicological analysis or dinoflagellate persistency in the mussel guts.
Tipo: Text
Palavras-chave: Mytilus edulis; Bivalvia; Marine mollusks; Stomach content; Toxicity; Phytoplankton; Biological poisons;
Mussel culture.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-1853.pdf
Feeding responses of hatchery-reared gilthead sea bream (Sparus aurata L.) to a commercial diet and
natural prey items
Provedor de dados: 5
Autores: Andrew, J; Begout, Marie-laure; Kadri, S; Holm, J; Huntingford, F.
Many fish species have evolved feeding mechanisms and behaviours enabling them to feed on specific prey. However, such
mechanisms may not be optimal for feeding on commercial-pelleted diets in aquaculture. Gilthead sea bream chew and
occasionally eject pellets or parts of pellets from the mouth when feeding on commercial diets. This may result in an increase in
nutritional waste from the intensive culture of this species. In this study we examined the prevalence of this food processing
behaviour in two sizes of sea bream, feeding on three types of natural prey items in comparison to a commercial pellet, to give an
insight into the circumstances in which excess chewing and ejection of food items from the mouth occurred. These included two
hard-textured food...
Tipo: Text
Palavras-chave: Gilthead sea bream; Food handling; Food choice; Chewing; Aquaculture.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-720.pdf
Recherches sur les réactions écophysiologiques d'agarophytes des côtes françaises
Provedor de dados: 5
Autores: Andriamampandry, A.; Asensi, A.; Delepine, R.; Dion, P.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41692/40901.pdf
Etude préliminaire sur la production comparée de Palmaria palmata en laboratoire et dans la nature
Provedor de dados: 5
Autores: Andriamampandry, A.; Delepine, R.; Dion, P.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41691/40900.pdf
Comparison of rearing performances and intermuscular bone number in the mirror and nude
genotypes of common carp (Cyprinus carpio L.) in a controlled field test in Madagascar
Provedor de dados: 5
Autores: Andria-mananjara, Diana Edithe; Rasamoelina, Harena; Vandeputte, Marc.
Nude carps, a genotype of common carp which are devoid of scales, have been banned from farmed populations of carp in Europe
due to both the lethal effect of the N (nude) gene when in homozygous state, and to the negative pleiotropic effects on growth and
survival (especially in harsh conditions) of this same gene in the heterozygous state, which produces the nude phenotype. In
Madagascar, where climatic variations are less extreme than in Eastern Europe, the nude phenotype is valued both by farmers and
consumers, for its good growth and supposed low number of intermuscular bones. We performed an on-farm experiment using a
“common garden” design to control environmental variation, in order to compare the growth and survival, as well as the number
of...
Tipo: Text
Palavras-chave: Nude carp; Growth; Survival; Pleiotropy; Intermuscular bones.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00308/41952/41214.pdf
Contribution des données isotopiques de deutérium, oxygène-18, hélium-3 et tritium, à l'étude de la
circulation de la Mer Rouge
Provedor de dados: 5
Autores: Andrie, C; Merlivat, L.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00106/21745/19318.pdf
Le phosphore dans les sédiments aquatiques : formes géochimiques et méthodes d'identification
Provedor de dados: 5
Autores: Andrieux, Francoise.
Les formes géochimiques du phosphore dans la matière particulaire et les sédiments, ainsi que les méthodes globales ou
spécifiques utilisées pour les identifier sont présentées. Puis une revue des concentrations obtenues par plusieurs auteurs dans
différents types de sédiments est réalisée. Enfin, l'analyse des travaux sur la biodisponibilité du phosphore sédimentaire met en
évidence la difficulté de l'évaluer spécifiquement pour les différentes formes rencontrées.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00082/19347/16941.pdf
Impact of Oyster Farming on Diagenetic Processes and the Phosphorus Cycle in Two Estuaries
(Britanny, France)
Provedor de dados: 5
Autores: Andrieux, Francoise; Azandegbe, Afi; Caradec, Florian; Philippon, Xavier; Kerouel, Roger; Youenou, Agnes; Nicolas,
Jean-louis.
This study aims to compare the impact of oyster cultures on diagenetic processes and the phosphorus cycle in the sediments of the
Aber Benoît and the Rivière d’Auray, estuary of Brittany, France. Our results showed clear evidence of the seasonal impact of
oyster cultures on sediment characteristics (grain size, organic matter parameters), and the phosphorus cycle, especially in the
Aber Benoît. At this site, seasonal variations of sulfide and Fe concentrations in pore waters, as well as Fe-P concentrations in the
solid-phase highlighted a shift from a system governed by iron reduction (Reference) to a system governed by sulphate reduction
(Beneath Oyster). This could be partly explained by the increase in labile organic matter (ie, biodeposits) beneath...
Tipo: Text
Palavras-chave: Sediment; Phosphorus; Sulfide; Dissolved Fe/P ratios; Labile organic matter; Oyster cultures.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00209/32003/30441.pdf
Les formes de phosphore particulaire et sédimentaire en environnement côtier. Méthodes d'analyse,
biodisponibilité, échange.
Provedor de dados: 5
Autores: Andrieux-loyer, Francoise.
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00015/12612/9491.pdf
Phosphorus forms related to sediment grain size and geochemical characteristics in French coastal
areas
Provedor de dados: 5
Autores: Andrieux-loyer, Françoise; Aminot, Alain.
Phosphorus forms with respect to sediment characteristics, such as grain-size, and major chemical elements, were studied in
French coastal marine areas (the Bay of Seine and the Loire and Gironde Estuaries).In the three areas, Fe/Al-bound phosphate
(Fe/Al-P) and exchangeable phosphate (exch-P) were significantly related to the proportion of fine fraction (< 63 mum). The
special association of these forms with fine particles, as well as the relationships between exch-P, Fe/Al-P and Fe showed that
adsorption processes on Fe oxides had taken place. However, for similar Fe concentrations, Bay of Seine sediments showed
Fe/Al-P concentrations which were four to five times higher than those found in the Loire and Gironde Estuaries. This was
attributed to...
Tipo: Text
Palavras-chave: Coastal areas; Major elements; Phosphorus forms; Grain size; Sediments.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-469.pdf
Phosphorus dynamics and bioavailability in sediments of the Penze Estuary (NW France): in relation
to annual P-fluxes and occurrences of Alexandrium Minutum
Provedor de dados: 5
Autores: Andrieux-loyer, Francoise; Philippon, Xavier; Bally, Gabriel; Kerouel, Roger; Youenou, Agnes; Le Grand, Jacqueline.
The macrotidal estuary of Penze (Brittany, Western part of the Channel, France) has been subjected to recurrent annual toxic
blooms of Alexandrium minutum since 1988. This study aims to specify the phosphorus dynamics and bioavailability in
sediments in order to improve our understanding of Alexandrium occurrences. Sediment-P pools and diffusive phosphate fluxes
were studied under similar hydrodynamic conditions, in the intermediate estuary in May, June and July 2003 and along the
salinity gradient from August 2004 to June 2005. The results highlight a decrease in bioavailable phosphorus (iron and organic
bound) from the inner part of the estuary seaward. The ratio of iron-bound phosphorus to iron-oxyhydroxides is lower in the inner
and intermediate...
Tipo: Text
Palavras-chave: Sequential extraction; Sediment phosphorus; Pore water; Phosphate fluxes; Estuary; Alexandrium minutum.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4306.pdf
Sécurité et conditions de travail à la pêche artisanale et semi-industrielle
Provedor de dados: 5
Autores: Andro, M; Dorval, P; Le Bouar, G; Le Roy, Y; Roullot, C; Prado, J; Meillat, Marc; Le Pluart, C.
Ifremer is honoured to publish this study, conducted under the supervision of Prof Dorval. Not only are the issues addressed in
this study important and timely, but the methods employed are exceptionally pertinent and original. Two major issues dominate
the current affairs in professional fishing: safety and competitiveness. Recent, dramatic events have brought fishing vessel safety
and working conditions back to the forefront of national preoccupations. Once again, all those-administrative bodies, sector
professionals, fishers, boat builders and fishing gear designers, researchers-confronted with the difficulty of finding satisfactory
solutions to this distressing problem wonder what actions should be taken....
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-4341.pdf
Sécurité et conditions de travail dans la conception d'un navire de pêche
Provedor de dados: 5
Autores: Andro, M; Dorval, P; Le Roy, Y.
The notions of safety and working conditions on board trawlers are too often integrated when the building of the vessel is coming
to the end. This guide gives the most relevant elements to deal with this problem right from the start of the design. It takes in
account the development of deep sea fishing and the adoption of new type of storage of fish on board: containers and boxes. Data
collected on board of different type of trawlers has let to write a practical book intended for fishing vessels's designers : naval
architects, shipyard design offices and shipowner's technical people. NOT CONTROLLED OCR
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-3813.pdf
Les accidents de travail dans la pêche maritime - Partie II - L'analyse des situations de travail dans la
pêche maritime
Provedor de dados: 5
Autores: Andro, M.; Dorval, Philippe; Le Bouar, G.; Le Pluart, C.
- En introduction à la partie 1 de ce rapport portant sur les accidents du travail à la pêche maritime, nous avons précisé que dans le
cadre des théories modernes de la sécurité, l'accident du travail devait être considéré comme un dysfonctionnement dans un
système. le contexte dans lequel se manifeste ce dysfonctionnement, définissant l'activité du travailleur est, rappelons-le, formé de
quatre composantes : l'individu, la tâche, le matériel et le milieu. L'analyse épidémiologique développée dans la partie 1, si elle
nous permet d'obtenir un grand nombre de renseignements sur l'accidentabilité des marins-pêcheurs, n'est cependant pas suffisante
en soi, pour décrire l'ensemble des moyens à mettre en oeuvre dans le cadre d'une politique globale de...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00104/21569/19149.pdf
Les accidents du travail dans la pêche maritime - Partie I - Analyse des données sur les accidents du
travail à la pêche maritime dans les pays de la Communauté Economique Européenne de 1977 à 1980
Provedor de dados: 5
Autores: Andro, M.; Dorval, Philippe; Le Bouar, G.; Le Pluart, C.
La littérature concernant les accidents du travail est nombreuse et disparate : statistique, recherche en laboratoire, étude clinique,
compte rendu d'expériences de prévention, etc ... Cette abondance et cette disparité rendent l'approche de l'accident peu commode
: il est bien difficile de dégager des orientations, des conceptions qui permettent de rendre compte de façon satisfaisante du
phénomène accident. Le problème majeur que pose son étude tient au fait que celle-ci se situe au carrefour d'un grand nombre de
disciplines : sciences fondamentales, sciences de l'ingénieur, sciences humaines, juridiques, de gestion... Là où il devrait y avoir
synthèse, on trouve fréquemment une vision morcelée, répartie dans un cadre préétabli, selon que le chercheur est...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00104/21568/19148.pdf
Analyse de l'organisation du travail, de la sécurité et des conditions de travail à la pêche artisanale
Provedor de dados: 5
Autores: Andro, M.; Dorval, Philippe; Le Bouar, G.; Le Pluart, C; Le Roy, Y; Roullot, C; Meillat, Marc; Prado, J.
Lorsque l'on étudie la flotte de pêche artisanale française, on ne peut qu'être frappé par la grande diversité des navires existants.
L'examen des unités, soit construites ces dernières années, soit mises en chantier, soit projetées, dans le cadre de la politique de
renouvellement de la flotte artisanale ne laisse apparaître aucune évolution significative dans ce domaine. On peut certes expliquer
la très grande variété de navires proposés par différents facteurs : . Le coût des unités de pêche doit s'adapter aux budgets
disponibles, très divers, les équipements intervenant de façon non négligeables dans ces coûts. . Chaque patron cherche à acquérir
l'unité qu'il croit le mieux adapté au métier qu'il désire pratiquer (les exigences seront très diverses...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00105/21582/19162.pdf
Presence of Salmonella in shellfish in the Thau lagoon
Provedor de dados: 5
Autores: Angeli, J.
After a general presentation of the Thau lagoon together with its geographic location, socio-economic activities linked to shellfish
culture and fishing, this paper investigates the health conditions of the shellfish harvesting areas. I he influence of heavy rainfall
following a prolonged drought period is underlined as a determining factor of the momentary bacterial pollution in the harvesting
areas, leading to a suspension of sales based on analyses relying solely on the detection of faecal coliforms. As of 1989,
bacteriological monitoring was reorganized in the form of a data collection network taking into consideration environmental
assessments of water quality as well as shellfish hygiene in order to protect consumer health. Its extension to the...
Tipo: Text
Palavras-chave: Salmonella; Bivalvia; Surveillance and enforcement; Mollusc culture; Health and safety; Epidemiology.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1589.pdf
Actes du séminaire international "Impact des grandes métropoles côtières méditerranéennes sur les
écosystèmes marins, Alexandrie, Egypte, 10-12 février 2009"
Provedor de dados: 5
Autores: Angelidis, Michael; Briand, Frédéric; Cadiou, Jean-francois; Kholeif, Suzan; Oh, Jae; Rodriguez Y Baena, Alessia;
Scoullos, Michael.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00070/18157/15715.pdf
Etude par submersible des canyons des Stoechades et de Saint-Tropez
Provedor de dados: 5
Autores: Angelier, Jacques; Auboin, Jean; Bellaiche, Gilbert; Blanchet, René; De Charpal, Olivier; Irr, France; Le Pichon,
Xavier.
The results of 14 aives made with the submersible Cyana in the lower parts of the Stoechades and Saint-Tropez canyons, between
2,400 and 1,500 m, are compatible with the following geological history of the French Mediterranean margin: a thick terrigeneous
sedimentary series was deposited near the Oligo-Miocene transition; the canyons were eroded subaerially within this series during
the Messinian; the morphology of the canyons has been maintained since by active bottom currents and gravity tectonics on the
bordering cliffS. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-5198.pdf
Recherches sur la sélectivité des chaluts pour la pêche de la sole, du merlan et du merlu
Provedor de dados: 5
Autores: Angellln, Jacques.
The International Agreement, concerned with Overfishing, of April 5th, 1946, enforced on April 5th 1954, and regulating the size
of the mesh of mobile gear north of L. N, 48° limits, amongst others, the size of the mesh of mobile gear (stretched and wet) north
of L. N, to 48° to 80 mm (provisionally 75 mm during the first few enforcement years). However, this measure applies uniformly
to a series of commercial species with a different market size defined for each of them by the same agreement. Yet, if the 80 mm
mesh works for the catch of species of high market size (cod, haddock, plaice), it is inefficient with species of small market size
that swim easily through the mesh (whiting, flounder). As a consequence to this incompatibility between measures...
Tipo: Text
Ano: 1956
URL: http://archimer.ifremer.fr/doc/1956/publication-4965.pdf
Synthèse des études écologique et halieutique du site de Flamanville de 1983 à 1991
Provedor de dados: 5
Autores: Angely, C; Bordet, F.
Située sur la côte ouest du Cotentin, la centrale de Flamanville comporte deux tranches de puissance électrique nette nominale de
1300 MWe environ, mises en service en décembre 1986 pour la tranche 1 et en mars 1987 pour la tranche 2. Depuis 1976, de
nombreuses études écologiques et halieutiques ont été réalisées pour connaitre le milieu marin au voisinage du site de
Flamanville, et surveiller l'évolution de la flore et de la faune aquatiques après la mise en service de la centrale.
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00005/11659/8318.pdf
Optimisation de la production en écloserie de mollusques : Mise au point d'un pilote industriel de
production phytoplanctonique en continu et des techniques associées pour leur intégration en écloserie
commerciale
Provedor de dados: 5
Autores: Angeri, S.; Bougaran, Gael; Connan, Jean-paul; Jouin, Jean-claude; Kaas, Raymond; Le Dean, Loic; Legrand, J.;
Loubiere, K.; Lukomska, Ewa; Olivo, Erell; Picquet, Marie-lise; Pruvost, J.; Robert, Rene.
Les travaux présentés dans le cadre de ce rapport d'activité rendent compte des avancées réalisées sur le plan (1) biologique, avec
d'une part une étude sur le comportement du genre Chaetoceros en culture continue et, d'autre part, les résultats d'expérimentations
sur les performances d'élevages larvaires réalisés sur la base de cultures de microalgues en continu, et (2) technologique, avec la
continuité des actions de développement du photobioréacteur destiné aux écloseries commerciales ainsi que des périphériques
indispensables à son intégration dans le secteur aquacole.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00304/41518/40726.pdf
The deep-sea hub of the ANTARES neutrino telescope
Provedor de dados: 5
Autores: Anghinolfi, Marco; Calzas, A; Dinkespiler, B; Cuneo, S; Favard, S; Hallewell, Greg; Jaquet, M; Musumeci, M; Papaleo,
R; Raia, G; Valdy, Pierre; Vernin, P.
The ANTARES neutrino telescope, currently under construction at 2500 in depth off the French Mediterranean coast, will contain
12 detection lines, powered and read out through a deep-sea junction box (JB) hub. Electrical energy from the shore station is
distributed through a transformer with multiple secondary windings and a plugboard with 16 deep sea-mateable electro-optic
connectors. Connections are made to the JB outputs using manned or remotely operated submersible vehicles. The triply
redundant power management and slow control system is based on two identical AC-powered systems, communicating with the
shore through 160 Mb/s fibre G-links and a third battery-powered system using a slower link.
We describe the power and slow
control systems of the...
Tipo: Text
Palavras-chave: Slow control system; Power distribution; Underwater neutrino telescope.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2099.pdf
The long-term evolution of the Congo deep-sea fan: A basin-wide view of the interaction between a
giant submarine fan and a mature passive margin (ZaiAngo project)
Provedor de dados: 5
Autores: Anka, Zahie; Seranne, Michel; Lopez, Michel; Scheck-wenderoth, Magdalena; Savoye, Bruno.
We have integrated the relatively unknown distal domains of the Lower Congo basin, where the main depocenters of the Congo
submarine fan are located, with the better-constrained successions on the shelf and upper slope, through the analysis of thousands
of km of 2D seismic reflection profiles off-shore the Congo-Angola passive margin. The basin architecture is depicted by two ca.
800-km-long regional cross sections through the northern (Congo) and southern (Angola) margin. A large unit deposited
basinward of the Aptian salt limit is likely to be the abyssal-plain equivalent of the upper-Cretaceous carbonate shelf that
characterized the first post-rift deposits in West-equatorial African margins. A latest-Turonian shelf-deepening event is recorded
in the...
Tipo: Text
Palavras-chave: Submarine fan; Lower Congo basin; Submarine canyon; Salt tectonics; Angola escarpment; West Africa
Margin.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6634.pdf
Mytilus galloprovincialis as bioindicator in embryotoxicity testing to evaluate sediment quality in the
lagoon of Venice (Italy)
Provedor de dados: 5
Autores: Annamaria, V; Chiara, L; Alessandra, A; Alvise, B; His, Edouard; Francesco, G.
The possibility of using Mytilus galloprovincialis from natural populations of the lagoon of Venice in toxicity bioassays based on
embryo development, according to international standard methods, was investigated. In order to valuate this method for the
lagoon, iterative steps including evaluation of reproducibility, sensitivity and discriminatory capacity towards some pure
substances and environmental samples were performed. Evaluation of sensitivity towards a reference toxicant (copper) evidenced
good replicability and repeatability. Results showed that natural population is better than hatchery population for performing
bioassays. Evaluation of applicability to elutriates revealed that the method is able to discriminate among sediments of the lagoon
of...
Tipo: Text
Palavras-chave: Elutriates; Autochthonous population; Reproducibility; Bioassay.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-4200.pdf
Chalcogenide Glass Optical Waveguides for Infrared Biosensing
Provedor de dados: 5
Autores: Anne, Marie-laure; Keirsse, Julie; Nazabal, Virginie; Hyodo, Koji; Inoue, Satoru; Boussard-pledel, Catherine; Lhermite,
Herve; Charrier, Joel; Yanakata, Kiyoyuki; Loreal, Olivier; Le Person, Jenny; Colas, Florent; Compere, Chantal; Bureau, Bruno.
Due to the remarkable properties of chalcogenide (Chg) glasses, Chg optical waveguides should play a significant role in the
development of optical biosensors. This paper describes the fabrication and properties of chalcogenide fibres and planar
waveguides. Using optical fibre transparent in the mid-infrared spectral range we have developed a biosensor that can collect
information on whole metabolism alterations, rapidly and in situ. Thanks to this sensor it is possible to collect infrared spectra by
remote spectroscopy, by simple contact with the sample. In this way, we tried to determine spectral modifications due, on the one
hand, to cerebral metabolism alterations caused by a transient focal ischemia in the rat brain and, in the other hand, starvation...
Tipo: Text
Palavras-chave: Planar waveguide; Fibre; Optical sensor; Chalcogenide.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6851.pdf
Prédation par les limicoles de la macrofaune intertidale en baie de Saint-Brieuc. Projet EUPHORBE.
Provedor de dados: 5
Autores: Annezo, Jean-pierre; Hamon, Dominique.
The object of this report is to provide an estimation, on an annual basis, of the macrozoobenthic biomass consumed by the major
wading birds staying in the bay of Saint-Brieuc (Brittany, Western Channel). Historical information was first reviewed and then
updated throughout the winter 1987-88, by field observations (counts of birds, birds activities ... ). Six species account for most of
the predation on macrofauna, and are thus studied with more detail. A specific survey is devoted to oystercatcher (Haematopus
ostralegus), because of its feeding on an exploited stock of the edible cockle (Cerastoderma edule).
Tipo: Text
Palavras-chave: Limicoles; Prédation; Macrofaune benthique; Baie de St Brieuc; Waders; Predation; Macrozoobenthos; Bay of
St Brieuc.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00107/21824/19412.pdf
PERLE. Programme d'expérimentation et de recherche sur l'huître plate Ostrea edulis. Rapport final
de l'ensemble du projet 2011-2014.
Provedor de dados: 5
Autores: Anonyme,; CRC (Comité Régional de la Conchyliculture) Bretagne Nord, France; CRC (Comité Régional de la
Conchyliculture) Pays de la Loire, France; Pôle agronomique Ouest, France; Ifremer, LEMAR-PFOM-PI, France; Ifremer,
SG2M-LGPMM, La Tremblade, France; CNRS-UPMC, Roscoff, France; CNRS-LEMAR, Brest, France; SMIDAP (Syndicat
Mixte pour le Développement de l'Aquaculture et de la Pêche) Pays de la Loire, France.
L’huître plate (Ostrea edulis) est une espèce endémique des côtes européennes, elle est présente depuis des millions d’années. Son
aire de répartition est très vaste allant de la Norvège jusqu’au Maroc. Elle est également présente en mer Méditerranée, en mer
Noire, mais également au Canada, aux Etats-Unis ou encore en Afrique du Sud, à la suite d'introductions pour des raisons
aquacoles. En France, à partir de la fin des années 70, de fortes mortalités ont été constatées sur les bancs naturels et en élevage,
faisant rapidement chuter la production de 20 000 tonnes à 2 000 tonnes. Ces mortalités ont été attribuées à deux maladies
parasitaires : la marteiliose (due au parasite Marteilia refringens) et la bonamiose (due au parasite Bonamia ostreae). Trente...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00248/35932/34451.pdf
Diagenetic evolution of the dop facies from the atlantis-ii-deep (red-sea) - evidence of early
hydrothermal activity
Provedor de dados: 5
Autores: Anschutz, P; Blanc, G.
The 23,000 year old sediments of the Atlantis II Deep rest on a basaltic substratum and are overlaid by a dense and hot brine pool.
The facies of the lower sequence of the West basin consists essentially of bioclastic and detrital particles (DOP facies). The
primary calcite and aragonite of planktonic tests of the DOP facies have been transformed into Ca-, Mg-, Mn-, and Fe-carbonate
solid solutions. Pyrite amounts to about 1-2% (wt) at the bottom of the sedimentary series, and as much as 20% (wt) in the upper
part of the sequence. These high iron - and manganese - earing minerals are the product of early diagenetic processes in an
environment favourable to bacterial activity, to which biogenic and detrital particles, organic matter, and iron and manganese...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00097/20863/18481.pdf
Comparison of events in the seasonal cycle for Donax vittatus and D. trunculus in european waters
Provedor de dados: 5
Autores: Ansell, A. D.; Bodoy, Alain.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00036/14765/12074.pdf
Incidence de la répartition géographique, à l'échelle européenne, sur la tolérance thermique de
mollusques marins
Provedor de dados: 5
Autores: Ansell, A. D.; Bodoy, Alain; Masse, Henri.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00036/14764/12073.pdf
Organisation, sclerotisation et composition minerale des sclerites d''une espece d'isopode marin et de
quatre especes d'isopodes terrestres oniscoides
Provedor de dados: 5
Autores: Ansenne, A; Compere, P; Goffinet, G.
The mineralized tergite cuticle of four terrestrial isopods (Oniscoidea) (Ligia oceanica, Oniscus asellus, Porcellio scaber and
Armadillidium vulgare ) and of the marine isopod Sphaeroma serratum shows a general organization comparable to the
fundamental plan of the decapod sclerite cuticle. Moreover, as in decapods, the procuticular layers are not tanned and
mineralization rates, from 60 to 80% of the total cuticular dry weight, are of the same importance. However, the chitin protein
microfibril distribution according to a homogeneous system in the mineralized procuticular proximal layer in all isopod species so
far studied does not allow any comparison of this layer with the non-mineralized membranous layer.
Tipo: Text
Palavras-chave: Sphaeroma serratum; Armadillidium vulgare; Porcellio scaber; Oniscus asellus; Ligia oceanica; Isopoda;
Malacostraca; Comparative studies; Mineralization.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/acte-1374.pdf
Basin-Wide Oceanographic Array Bridges the South Atlantic
Provedor de dados: 5
Autores: Ansorge, Isabelle J.; Baringer, Molly; Campos, Edmo J.d.; Dong, S.; Fine, R.a.; Garzoli, Silvia L.; Goni, Gustavo;
Meinen, Christopher S.; Perez, R.c.; Piola, Alberto R.; Roberts, M.j.; Speich, Sabrina; Sprintall, J.; Terre Terrillon, Thierry; Van
Den Berg, M.a.
The meridional overturning circulation (MOC) is a global system of surface, intermediate, and deep ocean currents. The MOC
connects the surface layer of the ocean and the atmosphere with the huge reservoir of the deep sea and is the primary mechanism
for transporting heat, freshwater, and carbon between ocean basins. Climate models show that past changes in the strength of the
MOC were linked to historical climate variations. Further research suggests that the MOC will continue to modulate climate
change scenarios on time scales ranging from decades to centuries [Latif et al., 2006].
Tipo: Text
Palavras-chave: South Atlantic; Meridional Overturning Circulation; CPIES.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00175/28609/27109.pdf
Responses of calanoid copepods to changes in phytoplankton dominance in the diatom/Phaeocystis
globosa dominated Belgium coastal waters
Provedor de dados: 5
Autores: Antajan, Elvire.
Copepods feeding behaviour according to changes in composition and availability of their potential preys in Belgian coastal
waters were appraised through the combination of different field experiment approaches. The gut fluorescence method was
combined with egg production measurements to estimate the contribution of herbivory to the total ingestion required to sustain
Temora longicornis' egg production. The results showed that during fall and winter herbivory was often sufficient to cover the
nutritional needs of T. longicornis, while during spring and summer they needed heterotrophic food to meet their energetic
demands for egg production. When T. longicornis carbon requirements for egg production increase the contribution of
non-phytoplankton food...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00083/19413/17024.pdf
The invasive ctenophore Mnemiopsis leidyi A. Agassiz, 1865 along the English Channel and the North
Sea French coasts: another introduction pathway in northern European waters?
Provedor de dados: 5
Autores: Antajan, Elvire; Bastian, Thomas; Raud, Thomas; Brylinski, Jean-michel; Hoffman, Stefan; Breton, Gérard; Cornille,
Vincent; Delegrange, Alice; Vincent, Dorothée.
The presence of Mnemiopsis leidyi A. Agassiz, 1865 along the French coasts of the Eastern English Channel and the North Sea
(EEC-NS) was established via morphological observation and molecular evidence. The earliest records were from surveys carried
out in autumn 2005 in Le Havre harbour (Bay of Seine, EEC) and coincided with the historical introduction of the species in other
Northern European waters. Since 2009, the species has also been frequently observed along the French coast of the North Sea.
Results indicate M. leidyi has established a selfsustaining population in the Bay of Seine, which may act as a source population
for northern European harbours via commercial shipping.
Tipo: Text
Palavras-chave: Ctenophore; Invasive species; Mnemiopsis leidyi.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30861/29229.pdf
Surveillance écologique du site de production électronucléaire de Gravelines Novembre 2010 Octobre 2011
Provedor de dados: 5
Autores: Antajan, Elvire; Delesmont, Régis; Dewarumez, Jean-marie; Lefebvre, Alain; Loots, Christophe; Luczak, Christophe.
This is the 34th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveys concern monitoring of pelagic system (hydrology,
microbiology, phytoplankton, zooplankton), fish populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), and
benthic macrofauna (intertidal and subtidal). This survey deals with spatial and temporal approaches (i) study of the direct impact
by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the area by...
Tipo: Text
Palavras-chave: Centrale nucléaire; Gravelines; Surveillance; Hydrologie; Halieutique; Plancton; Microbiologie; Benthos;
Nuclear power plant; Gravelines; Network survey; Hydrology; Fisheries; Plankton; Microbiology; Benthos.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00076/18709/16282.pdf
Surveillance écologique du site de production électronucléaire de Gravelines Novembre 2009 –
Octobre 2010
Provedor de dados: 5
Autores: Antajan, Elvire; Delesmont, Régis; Dewarumez, Jean-marie; Lefebvre, Alain; Luczak, Christophe; Loots, Christophe.
This is the 33th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveys concern monitoring of pelagic system (hydrology,
microbiology, phytoplankton, zooplankton), fish populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), and
benthic macrofauna (intertidal and subtidal). This survey deals with spatial and temporal approaches (i) study of the direct impact
by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the area by...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00055/16593/14100.pdf
Surveillance écologique et halieutique du site de production électronucléaire de Gravelines Novembre
2007 – Octobre 2008
Provedor de dados: 5
Autores: Antajan, Elvire; Delesmont, Régis; Dewarumez, Jean-marie; Lefebvre, Alain; Luczak, Christophe; Warembourg,
Caroline.
This is the 31th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveillance studies concern monitoring of fish
populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), benthic system (intertidal and subtidal) and pelagic
system (hydrology, microbiology, phytoplankton, zooplankton). This survey deals with spatial and temporal approaches (i) study
of the direct impact by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the
area by...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00055/16591/14098.pdf
Surveillance écologique et halieutique du site de production électronucléaire de Gravelines Novembre
2008 – Octobre 2009
Provedor de dados: 5
Autores: Antajan, Elvire; Delesmont, Régis; Dewarumez, Jean-marie; Lefebvre, Alain; Luczak, Christophe; Warembourg,
Caroline.
This is the 32th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveillance studies concern monitoring of fish
populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), benthic system (intertidal and subtidal) and pelagic
system (hydrology, microbiology, phytoplankton, zooplankton). This survey deals with spatial and temporal approaches (i) study
of the direct impact by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the
area by...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00055/16592/14099.pdf
Surveillance écologique et halieutique du site de Gravelines, Novembre 2012 - Octobre 2013
Provedor de dados: 5
Autores: Antajan, Elvire; Delesmont, Régis; Foveau, Aurelie; Hervio Heath, Dominique; Lefebvre, Alain; Loots, Christophe;
Luczak, Christophe.
This is the 36th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveys concern monitoring of pelagic system (hydrology,
microbiology, phytoplankton, and zooplankton), fish populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), and
benthic macrofauna (intertidal and subtidal). This survey deals with spatial and temporal approaches (i) study of the direct impact
by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the area by...
Tipo: Text
Palavras-chave: Centrale nucléaire; Gravelines; Surveillance; Hydrologie; Halieutique; Plancton – Microbiologie; Benthos;
Nuclear power plant; Gravelines; Network survey; Hydrology; Fisheries; Plankton; Microbiology; Benthos.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30862/29230.pdf
Assessment of Cryptophyceae ingestion by copepods using alloxanthin pigment: a caution
Provedor de dados: 5
Autores: Antajan, Elvire; Gasparini, Stéphane.
The accessory pigment alloxanthin is a well-known taxonomic marker for Cryptophyceae in natural seawater. The use of
alloxanthin to estimate in situ zooplankton grazing and selectivity on Cryptophyceae was studied using 2 dominant copepods of
the southern North Sea, Temora longicornis and Centropages hamatus. High-performance liquid chromatography (HPLC)
analyses of water samples and of freshly caught copepods, starvation experiments, and feeding experiments (shipboard
bottle-incubations) were carried out. Although alloxanthin was always detected in copepod extracts, (1) no correlation was found
with alloxanthin in seawater, and (2) no significant grazing on Cryptophyceae was observed. Results of our gut-evacuation
experiments showed that at least 78% of...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00083/19416/17027.pdf
Surveillance écologique du site de production électronucléaire de Gravelines Novembre 2011–
Octobre 2012
Provedor de dados: 5
Autores: Antajan, Elvire; Hervio Heath, Dominique; Lefebvre, Alain; Loots, Christophe; Luczak, Christophe.
This is the 35th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveys concern monitoring of pelagic system (hydrology,
microbiology, phytoplankton, and zooplankton), fish populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), and
benthic macrofauna (intertidal and subtidal). This survey deals with spatial and temporal approaches (i) study of the direct impact
by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the area by...
Tipo: Text
Palavras-chave: Centrale nucléaire; Gravelines; Surveillance; Hydrologie; Halieutique; Plancton; Benthos; Microbiologie;
Nuclear power plant; Gravelines; Network survey; Hydrology; Fisheries; Plankton; Microbiology; Benthos.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00180/29116/27522.pdf
Surveillance Écologique et Halieutique Site de Gravelines. Novembre 2013 - Octobre 2014
Provedor de dados: 5
Autores: Antajan, Elvire; Lefebvre, Alain; Loots, Christophe; Luczak, Christophe; Ruellet, Thierry.
This is the 37th annual surveillance report concerning the nuclear power plant of Gravelines. Its very high power level results
from six plant units located on the shore and is characterised by a cooling system with a coastal surface input and output. The
production of electricity began in 1980 and reached maximum in 1986. Surveys concern monitoring of pelagic system (hydrology,
microbiology, phytoplankton, and zooplankton), fish populations (larvae and eggs of Sole and Sprat) or crustaceans (shrimps), and
benthic macrofauna (intertidal and subtidal). This survey deals with spatial and temporal approaches (i) study of the direct impact
by comparison of the input and output seawater stations, (ii) study of medium and long term evolution of the area by...
Tipo: Text
Palavras-chave: Centrale nucléaire; Gravelines; Surveillance; Hydrologie; Halieutique; Plancton – Microbiologie; Benthos;
Nuclear power plant; Gravelines; Network survey; Hydrology; Fisheries; Plankton; Microbiology; Benthos.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00259/37004/35501.pdf
Recurrent winter observations of Mnemiopsis leidyi swarms in the Southern North Sea
Provedor de dados: 5
Autores: Antajan, Elvire; Loots, Christophe; Travers-trolet, Morgane; Vaz, Sandrine.
Tipo: Text
Palavras-chave: Ctenophore; Invasive species; Mnemiopsis leidyi; North Sea.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00259/37007/35506.pdf
L'activite de deplacement et le reperage de la nourriture chez le bar juvenile captif
Provedor de dados: 5
Autores: Anthouard, M; Paris, J.
Movement activity and localization of food were studied dynamically with the objective of establishing the capacities of
behavioral adaptation of the young Dicentrarchus labrax faced with a novel situation. The role played by previous rearing
conditions was demonstrated, the level of stimulation being a sensitive intervening factor (currents associated with the food). The
data show the favourable effects of such treatment, and are in agreement with work carried out on higher vertebrates, which have
brought to light the importance of early stimulation in behavioral ontogeny which respect to emotionality as well as capacities of
adaptation in subjects reaching adulthood.
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Serranidae; Pisces; Juveniles; Stimuli; Locating; Locomotion; Fish culture; Nutrition;
Ethology.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1253.pdf
Underwater Radiance Distributions Measured with Miniaturized Multispectral Radiance Cameras
Provedor de dados: 5
Autores: Antoine, David; Morel, Abdré; Leymarie, Edouard; Houyou, Amel; Gentili, Bernard; Victori, Stephane; Buis,
Jean-pierre; Buis, Nicolas; Meunier, Sylvain; Canini, Marius; Crozel, Didier; Fougnie, Bertrand; Henry, Patrice.
Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy
(CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric characterization
and calibration. The results show the excellent optical quality of the specifically designed fish-eye objective. They also show the
low noise and excellent linearity of the complementary metal oxide semiconductor (CMOS) detector array that is used. Initial
results obtained in various oceanic environments demonstrate the potential of this instrument to provide new measurements of the
underwater radiance distribution from the sea surface to dimly lit layers at depth. Excellent agreement is obtained between nadir...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00185/29659/28027.pdf
Etude du fouling sur la station d'essais en-milieu marin de Saint Anne du Portzic - Juin 1977 Décembre 1977
Provedor de dados: 5
Autores: Antoine, Elisabeth.
Cette étude, commencée en Mars 1973, vise à obtenir le maximum d'informations sur les conditions de l'environnement marin de
la Station d'Èssais in-situ de Sainte Anne-du-Portzic. Elle comporte deux parties : une étude des fixations animales et végétales
constituant les salissures (Fasc. 1) et un suivi des paramètres physico-chimiques tels que pH, température, oxygène dissous,
salinité (Fasc. 2).
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00081/19177/16772.pdf
Biosensors for the detection and monitoring of Alexandrium minutum along the French coasts
Provedor de dados: 5
Autores: Antoine, Elisabeth; Compere, Chantal; Cosnier, Serge; Crassous, Marie-pierre; Derbal, Hassina; Erard-le Denn,
Evelyne; Gondran, Chantal; Guilminot, Elodie; Lehaitre, Michel; Mazeas, Florence; Moreau, Hervé; Perrot, Hubert; Pradier,
Claire-marie; Salmain, Michèle.
The microalgae Alexandrium minutum produces neurotoxins responsible for paralytic shellfish poisoning, which upon
accumulation in shellfish represent a human health risk. This species recurrently forms toxic blooms in the Northern part of the
French Brittany coast. At present, algae identification relies on tedious microscope observations mostly performed by skilled
taxonomists in laboratories. Newly emerging fields of molecular taxonomy, nanoscale technology and biotechnology offer
opportunities for the development of in-situ biosensors for the detection and the monitoring of toxic algae.
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00089/19986/17650.pdf
Conséquences sur la maturation et la croissance d'une transplantation de naissain de pecten maximus
(L.)
Provedor de dados: 5
Autores: Antoine, L.; Garen, P.; Lubet, P.
Some king scallop reimplantation experiments on an old deposit (Roadstead of Brest) have been conducted with spats collected in
the Bay of Saint-Brieuc. In the introduced population, the length growth has not proved very different from that of the original
population. But scallops have acquired the characteristics of the indigenous population as far as valve curvature is concerned.
They also showed a precocious sexual maturity which did not exist at the same time in the original population. The acquisition of
indigenous characteristics could have interesting consequences for the commercialisation of such a repopulated deposit.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5252.pdf
Etude écologique d'avant-projet sur le site de Penly, Pays de Caux
Provedor de dados: 5
Autores: Antoine, Loic.
L' implantation d'une centrale nucléaire sur le littoral implique une étude approfondie de l'environnement marin du site et des
populations animales et végétales qui occupent cet environnement.
ELECTRICITE de FRANCE a chargé le CENTRE
NATIONAL POUR l'EXPLOITA'rION DES OCEANS de faire cette étude écologique préliminaire à une éventuelle implantation.
Le présent rapport s'inscrit dans le cadre des études d' "avant-projets" qui ont pour but de dégager des éléments de comparaison
entre les sites et qui précèdent les études écologiques dites. Il concerne le site de Penly, situé sur la côte du pays de Caux, entre
Dieppe et le Tréport. (...) [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00002/11314/7817.pdf
La croissance de la coquille Saint-Jacques Pecten maximus (L) et ses variations en mer Celtique et en
Manche
Provedor de dados: 5
Autores: Antoine, Loic.
L'étude de la dynamique des populations est une discipline qui cherche a cerner les mécanismes de régulation et d'évolution des
stocks ; appliquées aux espèces marines exploitées, elle cherche a évaluer les stocks ainsi que l'effet de l'exploitation sur la
dynamique, dans le but pratique d'aménager rationnellement l'exploitation. [Extrait introduction]
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00005/11673/8340.pdf
Les mammifères marins, la pêche et l'homme
Provedor de dados: 5
Autores: Antoine, Loic.
L’exploitation des mammifères marins est aussi vieille que la chasse. L'homme a probablement commencé à se nourrir des
cadavres échoués puis à chasser pour de bon lorsqu'il développa ses aptitudes à naviguer Les mammifères marins présentaient les
mêmes intérêts que les terrestres: fournir de la nourriture et des produits indispensables à la vie courante : cuir, graisse ...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00001/11241/7770.pdf
La croissance journalière chez Pecten maximus (L.) (pectinidae, bivalvia)
Provedor de dados: 5
Autores: Antoine, Loïc.
Daily increments have been found in the shells of many fossils and current bivalve molluscs, especially Pectinids. A daily
periodicity in formation of growth ridges has been found in Pecten maximus during spat life and the first two years of benthic life,
but this daily periodicity does not occur all life long. Decreasing of growth in winter and from year to year seems to slow dowm
an endogenous rythm which would produce the growth ridges. For this reason, Pecten maximus does not seem to be a good
"calendar" for ecologic events. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5264.pdf
La croissance de la coquille Saint-Jacques (Pecten maximus L.) dans les divers gisements français
Provedor de dados: 5
Autores: Antoine, Loïc; Arzel, Pierre; Laurec, Alain; Morize, Eric.
The growth of the scallop ( Pecten maximus L.) has been studied in several stocks along the french coast . The growth in height
has been first described by the Von Bertalanffy growth curve, and the paramete rs (especially K and Loo) compared between the
different stocks. An attempt has been made to study local (inside a stock) spatial heterogeneities, as well as variations from year to
year. Finally a modification of the Von Bertalanffy growth curve is suggested, whick takes into account seasonnal variations in
the growth rate.
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00247/35868/34388.pdf
Impact de la pêcherie thonière au filet maillant dérivant en Atlantique nord-est sur le dauphin
commun et le dauphin bleu et blanc
Provedor de dados: 5
Autores: Antoine, Loic; Goujon, Michel.
Ce document présente des résultats partiels de l'étude menée par l'IFREMER sur la pêcherie germonière au filet maillant dérivant
à la demande du Secrétariat d'Etat à la mer. Cette demande fait suite à la dérogation accordée par le Conseil des Communautés
dans le cadre de la réglementation de la pêche au filet maillant dérivant. Il repose principalement sur l'analyse des données de
captures accidentelles de cétacés, collectées au cours des campagnes d'observateurs embarqués en 1992 et 1993, ainsi que sur les
résultats d'une campagne d'évaluation directe des populations de cétacés en 1993. Le prélèvement que représente les captures
accidentelles sur les populations de dauphins a été estimé. Les derniers observateurs ayant débarqué le 8 octobre dernier,...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00069/18016/15544.pdf
Prospective sectorielle - Pêche et transformation des produits
Provedor de dados: 5
Autores: Antoine, Loic; Larnaud, Pascal.
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00304/41522/40730.pdf
Emergence d'une filière de culture de macro-algues en Bretagne et problème relatif à une espèce non
indigène, le wakame (Undaria pinnatifida)
Provedor de dados: 5
Autores: Antoine, Loic; Lemoine, Maud; Boulben, Sylviane; Kaas, Raymond; Laurans, Martial; Viard, Frédérique; Potin,
Philippe.
La synthèse de l’expertise collégiale menée par l’Ifremer et la station biologique de Roscoff permet de préconiser le maintien des
cultures de Undaria pinnatifida dans les zones déjà mises en culture à condition de se cantonner aux pratiques culturales des
exploitants installés depuis longtemps, avec un suivi et sans expérimenter de nouvelles pratiques pour lesquelles il n’y a pas de
recul. Là où des essais ont eu lieu en 2010 et 2011 (Projet Chaco), il serait nécessaire de faire rapidement un état des lieux de la
présence ou l'absence d'Undaria pinnatifida en milieu naturel afin de mesurer l'impact de ces essais. En l’état actuel des
connaissances il n’y a pas de données scientifiques qui permettent de garantir le respect de l’article 24 du R(CE) N°...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00086/19740/17380.pdf
Etude de la production et des marchés des moules et des huîtres en Espagne
Provedor de dados: 5
Autores: Antona, Martine.
Effectué A partir d'une synthèse bibliographique, ce rapport a pour objectif de présenter les caractéristiques de la production et des
marchés de la moule (et de l'huître) en Espagne et d'identifier les principales contraintes et atouts du secteur. Il fait partie, avec les
rapports concernant ces secteurs en Grande Bretagne, en Irlande, en Hollande, au Danemark, en Allemagne, en Italie et en France,
du premier rapport intermédiaire de l'étude "Cost and prices analysis for an economic study of shellfish culture management".
L'étude est menée dans le cadre d'un programme FAR de la Commission des Communautés Européennes, en parallèle par
l'Université de Strathclyde en Grande Bretagne, le LEI en Hollande et l'IFREMER en France. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4171.pdf
Iles et iliens (îles des Antipodes, des Caraibes et Saint Pierre)
Provedor de dados: 5
Autores: Antona, Martine.
Les îles et archipels français des Caraibes, de l'Océan Indien, du Pacifique et l'île de Saint Pierre et Miquelon concentrent la
majorité des 1,670 millions de français habitant outre-mer. Il s'agit de terres étroites, éloignées de la métropole et distantes entre
elles, éparses et souvent composées d'archipels. A l'exception de Saint Pierre et Miquelon, elles sont tropicales et soumises à des
risques climatiques majeurs (cyclones). Leur superficie est réduite si on la compare à celle des territoires continentaux français
d'outre-mer (Guyane et Terres Australes) mais elles sont au centre d'une surface maritime importante marquée par la pauvreté et
l'inégale répartition des ressources biologiques et par la nature fragile des écosystèmes littoraux insulaires....
Tipo: Text
Palavras-chave: SEM.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/rapport-4213.pdf
Données économiques sur la conchyliculture française
Provedor de dados: 5
Autores: Antona, Martine.
15% of the shellfish production in France comes from natural deposits and the other 85% from farming. Years 1980-1990 showed
a slight decrease in the shellfish production then a resurgence from 1985 onwards, an increase in the oyster production and a
strong decrease in mussel production at the beginning of the 1980's followed by a resurgence due to the increase of open sea
activity. In France, the shellfish market represents 300,000 tons, divided between oysters (40%), mussels (30%) and scallops
(15%). Importations of mussels and scallops in order to supply the domestic market are important. On the other hand, external
trade flows are very low as far as oysters are concerned: France is the only important market for oysters in Europe. (unverified
OCR)
Tipo: Text
Palavras-chave: France; Shellfish; SEM; France; Conchyliculture.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-3714.pdf
Production et marchés du Bar et de la Dorade dans le bassin Méditerrannéen
Provedor de dados: 5
Autores: Antona, Martine.
Les premiers essais d'aquaculture du bar puis de la dorade remontent aux années 60-70 en Méditérranéenne avec des tentatives de
mise en valeur de zones lagunaires (valle en Italie, salines en France et Espagne). L'insuffisance de l'offre de pêche en dépit de la
surexploitation des stocks de bars et dorades, l'existence de marchés connus, la valeur commerciale élevée de ces produits incitent
à la recherche de techniques d'élevage adaptées à ces espèces. Elle aboutit au début des années 80 au démarrage d'une activité
d'élevage significative et à l'émergence d'un secteur de production pionnier en France, Italie puis en Espagne. L'augmentation du
nombre d'entreprises dans ces pays, l'amélioration très progressive de leurs résultats et la mise en évidence de...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00104/21539/19120.pdf
Aquaculture de poisson en Martinique : Compte rendu de mission en martinique du 19 au 26 juillet
1990
Provedor de dados: 5
Autores: Antona, Martine.
Fish aquafarming is an activity that is starting to take off in Martinique as possible diversification of giant river prawn breeding
(Macrobrachium Rosenbergii) which debuted in the middle of the 70s. Two species were involved, one freshwater species (the red
tilapia or Saint-Pierre) and a marine species (the redfish or red drum). This mission report presents, in the first section, the local
conditions of fish aquafarming development in Martinique – the current characteristics of the breeds, the existing production
sector and its management. A second section inventories the main operating constraints of this field – technical or market
constraints.
Tipo: Text
Palavras-chave: SEM.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-2421.pdf
Fonctionnement des entreprises conchylicoles. Approche économique
Provedor de dados: 5
Autores: Antona, Martine.
Sur un plan strictement économique, une augmentation de production équivaut à une baisse des prix et des marges, suivie d'une
augmentation de la taille des entreprises. On observe donc, à long terme, des entreprises qui augmentent leur production en
intensifiant leur travail, pour compenser une diminution des marges (c'est le phénomène d'accumulation) ; on assiste ensuite à une
baisse des coûts de production, ce qui permet de réaugmenter les marges par unité produite (ce sont les économies d'échelle).
[OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-4237.pdf
L'aide communautaire au secteur aquacole français 1986-1990
Provedor de dados: 5
Autores: Antona, Martine.
Le présent article aborde principalement les règlements 2908/83 et 4028/86 des mesures structurelles relatives à la pêche et à
l'aquaculture. Néanmoins des comparaisons seront faites avec les règlements de type agricole (encart 2) qui participent également
au financement de l'aquaculture marine (2) : de 1986 à 1989, 113 projets français d'aquaculture ont été financés dans le cadre des
règlements "agricoles" 797/85 et 1760/87. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-4102.pdf
La conchyliculture en Europe
Provedor de dados: 5
Autores: Antona, Martine; Bailly, Denis; Paquotte, Philippe; Gabott, M; Gibbs, J; Shaw, S; Harmsma, H.
This report includes a qualitative and descriptive approach of the oyster and mussel industries in the European Community. This
report compares the structure of production, the marketsn the professional organisation, competition for the resource, legislation
and support systemat the community levell. Technical and statistical datas are summarized to représent the structure of the
industry, the trade flows and the main evolutions of the two industries in the EC. A summary of the county reports gives an
overview of the present state of the industry in each country and suggest a first evaluation of constraints and prospects. [NOT
CONTROLLDED OCR]
Tipo: Text
Palavras-chave: Regulation; External trade; Markets; Production; Europe; Shellfish culture; SEM; Réglementation; Commerce
extérieur; Marché; Production; Europe; Conchyliculture.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-4176.pdf
Risques en aquaculture et implications pour un système d'assurance : éléments de réflexion
Provedor de dados: 5
Autores: Antona, Martine; Paquotte, Philippe.
Les expériences en matière d"assurance des entreprises de cultures marines se sont développées dans la décennie 70. Elles se sont
caractérisées par une couverture très large du risque avec des taux de prime importants qui ont restreint le champs des assurés et
par une couverture géographique très faible. Dans la pratique, seuls les ostréiculteurs de Bretagne Nord ont été assurés. L"arrêt
brutal de ces expériences à la fin des années 70 est dû au retrait des assureurs après I"épizootie de l'huître plate. La mise en place
de systèmes d"assurance en aquaculture nouvelle à la fin des années 80 et leur réexamen actuel pour la conchyliculture ont été
favorisés par plusieurs facteurs : - le développement des productions aquacoles sur incitation publique, - la...
Tipo: Text
Palavras-chave: SEM.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/publication-4274.pdf
Journées mytiliculture - Nantes - 17 février 1993 - Les marchés et l'organisation des producteurs en
Europe
Provedor de dados: 5
Autores: Antona, Martine; Paquotte, Philippe.
OCR NON CONTRÔLE
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-3741.pdf
La mytiliculture en Hollande et en Espagne
Provedor de dados: 5
Autores: Antona, Martine; Paquotte, Philippe.
This article is the second part of an analysis of mussel-farming sectors in France, Holland and Spain. The first part, devoted to
France, addressed the national offering's stresses of adapting to changes in the mussel market. From the viewpoint of questions
raised within the profession while preparing the French mussel-farming sector for the regulatory and economic environment of
1992, Spain and Holland offer benchmarks in terms of structuring the offer and planning markets. This article presents the
mussel-farming business in Spain and Holland from these two angles.
Tipo: Text
Palavras-chave: Economic evaluation; Urshin; Clams; Shellfish; Fleets; Metier; Fishing activities; Bay of Morbihan; Brittany;
SEM; Cout; Indicateurs economique; Palourde; Oursin; Bivalves; Typologie; Flottilles; Metier; Activités de pêche; Golfe du
Morbihan.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-2252.pdf
Etude économique de la production et de la commercialisation des moules en Italie
Provedor de dados: 5
Autores: Antona, Martine; Paquotte, Philippe; Bailly, Denis.
Limitations and assets of shellfish farming in Italy are presented in Figures 6.1 and 6.2. In the case of oysters, which are only
wild-caught and not cultured, the perspectives of this activity are tightly linked to problems in stock and fleet management. The
current research and development institutions do not seem to favour the emergence of aquaculture in the near future. Mussel
farming is done on a small-scale and its prospects for development are modest. While the demand creates favourable conditions
for its development, mussel farming is confronted with a lack of available sites suitable for traditional techniques, problems in
environmental quality and problems in product quality. Moreover, the study of the Italian market shows that competition from...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4098.pdf
Sea products consumption evolutions in France. A stability hiding great transformations
Provedor de dados: 5
Autores: Antona, Martine; Pitiot, H.
Trends in french household consumption are globally analysed and studied over the eighties. Household consumption is described
according to its main components (fresh, deep - frozen, processed, non - processed fish or others sea products). The diverging
changes in household consumption at home (products, species) and in the catering sector is stressed. With these informations, we
consider the historical sea product consumption as a component of the consumption behaviour which finally expands among
industrial countries. Sea food consumption evolution patterns are linked to household socio - demographic criteria (socioprofessional groups, urban or rural localisation, region, age of the head of household, family size) and not only to economic
criteria such...
Tipo: Text
Palavras-chave: SEM.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-4095.pdf
Development and characterization of microsatellite markers for blackfin tuna (Thunnus atlanticus)
with the use of Illumina paired-end sequencing
Provedor de dados: 5
Autores: Antoni, Luca; Luque, Patricia L.; Naghshpour, Kaylie; Reynal, Lionel; Saillant, Eric.
Twenty homologous microsatellite markers, or simple sequence repeats (SSRs), were developed for blackfin tuna (Thunnus
atlanticus) through the use of a direct Seq-to-SSR approach. The number of alleles per locus ranged between 5 and 26, and the
expected heterozygosity ranged between 0.640 and 0.969. Three loci displayed significant departure from Hardy-Weinberg
equilibrium expectations, likely reflecting occurrence of null alleles. Another locus showed consecutive alleles that differed by
one base pair only. Consequently, this locus may be prone to elevated rates of scoring errors. The remaining 16 loci will be
valuable for studies in conservation genetics of blackfin tuna.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00239/34999/33529.pdf
Analysis and prediction of the fluctuation of sardine abundance using a neural network
Provedor de dados: 5
Autores: Aoki, I; Komatsu, T.
This paper examines the use of a neural network to analyse and predict the winter catch, in the Joban-Boso Seas off the Pacific
coast of central Japan, of young Japanese sardine (Sardinops melanostictus) representing the index of recruits in the sardine stock.
The supervised learning paradigm, a three-layer network and a back-propagation algorithm were employed in constructing the
neural net. A number of biological, hydrographic and climatic factors constituted an input vector, the output being the catch of
young sardine. The association of sardine abundance with environmental factors was quantified in the form of the trained neural
network, which indicated important associations with the Southern Oscillation Index, with patterns of the Kuroshio and the...
Tipo: Text
Palavras-chave: Neural network; Japanese sardine; Recruit; Climatic change; Kuroshio-Oyashio.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20436/18103.pdf
Preliminary appraisal of wave power prospects in Lebanon
Provedor de dados: 5
Autores: Aoun, N. S.; Harajli, H. A.; Queffeulou, Pierre.
The present work is the first attempt to methodologically assess the wave power prospects off the coast of Lebanon. Working
around 1.5 years of buoy data, measurements for the significant wave height and wave period were inputted to establish a joint
frequency table that was related to power matrixes of three selected wave energy converters. The spatial and temporal
representability of the analysis was extended through assessing altimeter data of H-s over 20 years and for three points off the
coast of Lebanon; southern Lebanon, buoy location off the coast of Beirut, and northern Lebanon. The altimeter data indicated
that H-s values as measured through the buoy is within 1 standard deviation of the offshore regional mean, however adopting the
regional mean...
Tipo: Text
Palavras-chave: Wave energy converter; Lebanon; Significant wave height; Wave period; Mediterranean sea.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00176/28763/27296.pdf
Recent comparability of oceanographic nutrients data: Results of a 2003 intercomparison exercise
using reference materials
Provedor de dados: 5
Autores: Aoyama, M; Becker, S; Dai, M; Daimon, H; Gordon, L; Kasai, H; Kerouel, Roger; Kress, N; Masten, D; Murata, A;
Nagai, N; Ogawa, H; Ota, H; Saito, H; Saito, K; Shimizu, T; Takano, H; Tsuda, A; Yokouchi, K; Youenou, Agnes.
An intercomparison exercise was conducted using the recently developed Reference Material for Nutrients in Seawater (RMNS).
Discrepancies of reported values among laboratories were greater than the homogeneity of RMNS samples and the reported
analytical precision of nutrients. The variability of in-house standards of the participating laboratories might be the most likely
source of interlaboratory discrepancies. Therefore, the use of common reference materials, i.e. certified RM, is essential to
establish and improve the comparability of nutrient data of the world's oceans.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3010.pdf
First Meeting of the joint IOC-ICES Study Group on Nutrient Standards (SGONS)
Provedor de dados: 5
Autores: Aoyama, M; Hydes, D; Daniel, Anne; Bakker, K; Murata, A; Tanhua, T; Woodward, M.
A meeting of the joint IOC-ICES Study Group on Nutrient Standards (SGONS) was held in Paris, France on 23-24 March 2010. It
focused on the ongoing activities of the SGONS and plans for extended international collaborations to establish global
comparability of the nutrient data from the world’s ocean. Thirty two scientists and experts from 11 countries and 2 delegates
from IOC attended the meeting. The discussions followed the Terms of References of SGONS established in July 2009.
Development of the reference materials for nutrients in seawater (RMNS) were also discussed in collaboration with the producers.
The background and history of SGONS and an international nutrients scale system INSS and the progress with the production of
RMNS materials and their...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00020/13142/10183.pdf
Development of genomic probes for detection of hepatitis A virus and enteroviruses in shellfish
Provedor de dados: 5
Autores: Apaire, M; Leguyader, F; Besse, B; Billaudel, S.
The development of molecular biology techniques has modified research procedures for certain viruses, particularly hepatitis A
virus (HAV) and enteroviruses. Accordingly, we designed cDNA and RNA genomic probes to detect viruses in shellfish in the
environment. Better sensitivity was noted with RNA than cDNA probes: only 17/83 shellfish samples were positive with HAV
and enterovirus DNA probes, where as 42/83 were positive with HAV and enterovirus RNA probes.
Tipo: Text
Palavras-chave: Mollusca; Enterovirus; Hepatitis A virus; Picornaviridae; RNA probes; DNA probes; Seafood; Biology;
Sensors; DNA; RNA; Viruses; Detection; Marine molluscs; Shellfish.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1613.pdf
Les frontières maritimes en droit international - Mutations et perspectives
Provedor de dados: 5
Autores: Apollis, G.
The boundaries of territorial waters are not as stable as boundaries on land. Nowadays, indeed they are characterised by their very
mobility. No doubt the reason for this is political. A state which sought to further her own interests by enlarging her domain
within her own waters would encounter no sovereign opposition. Additonally, with the collapse of the traditional "understanding"
regarding the conception of -and the criteria governing -maritime boundaries. nations chose the most effective methods of
appeasing their own needs and appetites. This was achieved with the maximum ingenuity. The natural boundary myth was shaken
sometimes before and sometimes simultaneously with, the cultivation of negotiating skills or, from a position of strength. the...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/rapport-4798.PDF
Pyrococcus horikoshii TET2 Peptidase Assembling Process and Associated Functional Regulation
Provedor de dados: 5
Autores: Appolaire, Alexandre; Rosenbaum, Eva; Dura, M. Asuncion; Colombo, Matteo; Marty, Vincent; Savoye, Marjolaine
Noirclerc; Godfroy, Anne; Schoehn, Guy; Girard, Eric; Gabel, Frank; Franzetti, Bruno.
Tetrahedral (TET) aminopeptidases are large polypeptide destruction machines present in prokaryotes and eukaryotes. Here, the
rules governing their assembly into hollow 12-subunit tetrahedrons are addressed by using TET2 from Pyrococcus horikoshii
(PhTET2) as a model. Point mutations allowed the capture of a stable, catalytically active precursor. Small angle x- ray scattering
revealed that it is a dimer whose architecture in solution is identical to that determined by x- ray crystallography within the fully
assembled TET particle. Small angle x- ray scattering also showed that the reconstituted PhTET2 dodecameric particle displayed
the same quaternary structure and thermal stability as the wild-type complex. The PhTET2 assembly intermediates were...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00177/28820/27491.pdf
Aquaculture au centre océanologique du pacifique
Provedor de dados: 5
Autores: AQUACOP.
L'objectif à long terme du C.O.P. en aquaculture est de mettre au point et de développer les cultures et élevages d'organismes
marins en milieu tropical, en vue d'une mise en exploitation des îles hautes et des lagons d'atolls. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/acte-4405.pdf
Elevage larvaire de pénéides en milieu tropical
Provedor de dados: 5
Autores: AQUACOP.
With a view of utilizing to the maximum and raising separately the spawn of Peneid shrimps obtained from captive brood stock,
the team of the Oceanographic Center of the Pacific of CNEXO adapted the technic of small volume, high density perfected by
the Galveston labora-tory to tropical conditions. The environmental conditions, particularly year-round high temperatures, allowed
the development of a simple hatchery, demanding a minimum investment. The water, previously chlorinated, then deahlorinated,
is only renewed from the mysis stage onward. Cylindrotheca and Tetraselmis algae produced separately are used for the zoea
stage, rotifers for the mysis stage and Artemia nauplii for PI to PS at which point the post-larvae are stocked in ponds. The 100
P/liter...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41610/40819.pdf
Penaeid larval rearing in the centre océanologique du Pacifique
Provedor de dados: 5
Autores: AQUACOP.
The Centre Océanologique du Pacifique (COP), a branch of the Centre National pour l'Exploitation des Oceans (CNEXO) already
described in other chapters of this handbook. has been working since 1973 on the culture of penaeid shrimp. This chapter
describes the larval rearing technique perfected at the COP and used for seven years on 3 species: P. aztecus, P. japonicus. M.
ensis. P. merguiensis, P. indicus, P. monodon, P. vannamei and P. Stylirostris. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4450.pdf
Algal food cultures at the centre océanologique du Pacifique
Provedor de dados: 5
Autores: AQUACOP.
The CENTRE OCEANOLOCIQUE DU PACIFIQUE (cap), a laboralory of the french agency CENTRE NATIONAL POUR
L'EXPLOITATlON DES OCEANS (CNEXO), is located at Vairao in the southern part of TAHITI island, French Polynesia. Most
of the island is surrounded with a coral reef delimitating a lagoon. Around the COP, the lagoon forms a NW-SE basin, 40 m of
maximum depth, fed in oceanic water by the combing of the open-sea swell over the barrier reef, so that the renewal rate of the
lagoon water is once every day or every second day according to the strength of the waves. Under those conditions, the sea water
pumped at the COP offers similar features to the superficial oceanic water : annual temperature range 25.5 - 3O.1° C ; annual
salinity range 34.2 - 36.5 ppt ; poor...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/rapport-4452.pdf
Present status of bivalve culture in french Polynesia
Provedor de dados: 5
Autores: AQUACOP.
Two fields of activities are concerned, pearl-oyster culture on one hand, and edible species of oysters, mussels and clams on the
other hand. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/acte-4428.pdf
Reared broodstock of Penaeus monodon
Provedor de dados: 5
Autores: AQUACOP.
Since 1975, maturation and spawning in captivity of Penaeus monodon has been achieved in the 'Centre Océanologique du
Pacifique', a CNEXO Centre in Tahiti. The five first animals have been imported from Fiji Islands and in May 1979, four
generations-have been obtained. Under the rearing conditions followed at the Centre, reproduction is achieved all throughout the
year. Maturation is induced by unilateral eyestalk ablation on pond reared animals maintained in tanks on adequate food. Results
concern mating behaviour, ovarian development, number of spawnings per female and egg viability. The rearing and the
maintenance conditions of the captive broodstocks are particularly important to obtain reliable results necessary to sustain
commercial hatcheries. Mass...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/acte-4427.pdf
Equipements pour fabriquer des granules par voie humide destinés aux animaux marins
Provedor de dados: 5
Autores: AQUACOP.
The purpose of feeding marine animaIs (shrimps and fish) has been examined by CNEXO in a tropical area (Tahiti, French
Polynesia) fer developing aquaculture with intensive methods. A food pilot plant unit has been built in 1973 in order to make
water-stable pellets. The rirst step is to demonstrate the technical feasibility of such a unit with an experimental alm. The method
described in this paper originates from the adaptation of equipment which works by moistening different meals. An extrusion
without steam occurs through a granulating press followed by a drying operation in a sun drier, which works with an addition al
heat exchanger. Il seems as if the devices described are adaptable to food production for rish in temperate or warm-water, and a
review...
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/acte-4420.pdf
Recent innovations in cultivation of molluscs in french Polynesia
Provedor de dados: 5
Autores: AQUACOP.
Until recently, mollusc production in French Polynesia was only based upon fishing, for local consumption of edible bivalves
mainly the oyster Saccostrea cucullata and for the exportation of pearl-oyster shells. As a consequence of parasitism problems on
local oysters, a mollusc program was initiated by developping hatchery technics on introduced species of edible bivalves,
Saccostrea echinata and Perna viridis, and cultivation methods in specialyy fitted up areas. Concerning pearl oyster Pinctada
margaritifera the traditional shell production activity was recently reorganized to produce black culture pearls, inducing an
increased demand of young implantable pearl-oysters. Hatchery spat production proved to be unsuccessful, and technics of
collection and...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4449.pdf
Mass production of green mussel spat Mytilus viridis linnaeus in french Polynesia
Provedor de dados: 5
Autores: AQUACOP.
To develop mussel culture in tropical environement, trials for mass production of spat of Mytilus viridis were conducted at the
Centre Océanographique du Pacifique (COP) of the Centre National pour l'Exploitation des Océans (CNEXO) in Tahiti. This
paper presents the results obtained in 800 1 and 10 m3 larval rearing tank with an initial density of 2.500 - 3.000 larvae per liter.
[NOT CONTROLLED OCR]
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/acte-4426.pdf
Penaeid reared brood stock : closing the cycle
Provedor de dados: 5
Autores: AQUACOP.
Three shrimp species, Penaeus monodon, P. stylirostris (Panama and Mexican strains) and P. vannamei have matured and
spawned in captivity at the Centre Océanologique du Pacifique (COP) laboratory. The shrimp, originally stocked as juveniles or
postlarvae, were reared to adult size in tanks and ponds and have completed the cycle: F3 generation for P. monodon, F2 for P.
stylirostris (Panama strain) and P. vannamei and F1 for P. stylirostris (Mexican strain). Maturation occurs naturally under our
rearing conditions or is induced by unilateral eyestalk ablation. Details are given on mating behavior, ovarian development,
number of spawnings, egg viability and maintenance of captive brood stock. Partial results so far obtained for P. monodon and P.
stylirostris...
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/acte-4423.pdf
Elevage larvaire et production de naissain de Crassostrea gigas en milieu tropical
Provedor de dados: 5
Autores: AQUACOP.
In order to develop oysters culture in the South Pacific Islands and especially in French Polynesia, trials for producing spats of C.
gigas in controlled conditions were conducted at the Centre Oaéanologique du Pacifique of the CNEXO in Tahiti. Tropical water
environment (high temperature all year round and low productivity) led to the development of particular technics fir maintaining
the brood stock. During the larval rearing a locally isolated algae strain is used and antibiotics as preventive treatments are added.
For settling, crushed shell is used giving free spat. This paper presents and discusses the results obtained in the experimental
hatchery during four rearing series from September to November 1976, when about 250 000 spats were produced. The...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41597/40806.pdf
Macrobrachium rosenbergii culture in Polynesia : pH control in experimental pond waters by
phytoplankton limitation with an algicide
Provedor de dados: 5
Autores: AQUACOP.
Macrobrachium rosenbergii ponds at the Centre Océanologique du Pacifique are subject to increases in pH exceeding 10.5 during
growing experiments. The high levels of pH are responsible for mortality of prawns, especially when molting. The photosynthetic
activity of dense phytoplankton blooms are primarily responsible for high pH. The algicide Clarosan (CIBA-Geigy) was used to
thin phytoplankton blooms. Experiments showed that treatments with 0.02 mg/liter result in a rapid fall in the pH. At this dose
Clarosan is not deleterious to the prawns. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/acte-4421.pdf
Intensive larval culture of Macrobrachium rosenbergii : a cost study
Provedor de dados: 5
Autores: AQUACOP.
Pilot scale larval culture of Macrobrachium rosenbergii began in Tahiti at the end of 1976. Since then, four batches of postlarvae
(2.3 millions) have been produced. Operating expenses cost was $13-35/thousands postlarvae. Based on the results obtained from
the pilot program, we can project the cost of a commercial scale hatchery producing 10 million postlarvae/ year at $12/1,000. This
includes construction and equipment costs. Due to the high cost of living in Tahiti, this figure would undoubtedly be lower in
many other regions. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/acte-4443.pdf
Observations sur la maturation et la reproduction en captivité des crevettes pénéides en milieu
tropical
Provedor de dados: 5
Autores: AQUACOP.
The present development of Peneid shrimp culture is limited by the problem set by the routine obtainment of reproduction in
captivity. In Polynesia where no species of commer-cial interest is found naturally, this obtainment is a necessary prerequisite.
The observations at the Centre Océanologique du Pacifique of CNEXO were made on 6 species of the genus Penaeus (P.
merguiensis, P.aztecus, P, japonicus, P. monodon, P. vannamei and P. styliroetris) raised and maintained in 12 m¿ outdoor tanks.
At temperatura between 25 and 32°, a salinity of 35°/Oo and a pH of 8.2, maturations and spawnings are seen throughout the year
and several generations were obtained : P. merguien-sis, F7 ; P. gateaus and P. japonicus, F3 ; P. monodon, F2 ; P. stylirostris and
P....
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41611/40820.pdf
Constitution of broodstock, maturation, spawning and hatching systems for Penaeid shrimps int the
Centre Océanologique du Pacifique
Provedor de dados: 5
Autores: AQUACOP.
The Centre National pour l'Exploitation des Océans (CNEXO) has developed a tropical aquaculture program. For this, the
CNEXO reckons on the Centre Océanologique du Pacifique (COP) , located in TAHITI (French Polynesia), and the Station
d'Aquaculture de St-Vincent, located in NEW CALEDONIA. The tropical area seems to be highly propicious to the development
of Penaeid shrimp farming, due to the high temperature which allows full production throughout the year. [NOT CONTROLLED
OCR]
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/rapport-4451.pdf
Intensive larval rearing of Macrobrachium rosenbergii in recirculating system
Provedor de dados: 5
Autores: AQUACOP.
Growing ponds for the freshwater prawn Macrobrachium rosenbergii are most of the time far from the seat and good quality fresh
or sea water may also be in short supply seasonally. With an open system with water exchange every day the hatcheries have to be
located near the sea whereas closed systems allow to set free from environmeneal conditions, and have been developed in Tahiti
(Centre Océanologique du Pacifique) in collaboration with the ORERO (Office de la Recherche et de l'Exploitation des
Ressources Océaniques formerly Fisheries Service). The development and the use of a recirculation system for larval culture of
freshwater prawn is described. Biological and economical results are presented. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4448.pdf
Mass production of juveniles of freshwater prawn Macrobrachium rosenbergii in french Polynesia :
predevelopment phase results
Provedor de dados: 5
Autores: AQUACOP.
Since 1973, a new method for mass production of Macrobrachium rosenbergii post-larvae has been set up in french Polynesia in
CNEXO-COP centre in collaboration with Territorial Fisheries Service. The larvae are reared in clear water daily renewed,
without phytoplankton and at hight density. 90 post-larvae per liter are obtained within six weeks on a diet of Artemia nauplii and
inert particles. Since 1976, a pilot hatchery is working and ten pilot scale productions gave 4.6 million juveniles. The technology
is described and the production costs discussed. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/rapport-4442.pdf
First results of a 10 ha Macrobrachium farm in Tahiti
Provedor de dados: 5
Autores: AQUACOP.
The Office de la Recherche et Ressources Océaniques (O.R.E.R.O.) in Tahiti and the Centre Océanologique du Pacifique (COP)
have developed together for 10 years the whole set of techniques to culture Macrobrachium rosenbergii : hatchery systems, feed
formulations and locally produced pellets, nursery and grow-out ponds. This paper presents the first results of a 10 ha
Macrobrachium rosenbergii commercial private farm operating in Tahiti since 1981 with water renewal by gravity flow. [NOT
CONTROLLED OCR]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4447.pdf
Production de masse de post-larves de Macrobrachium rosenbergii (De Man) en milieu tropical :
unité pilote
Provedor de dados: 5
Autores: AQUACOP.
Since 1973, in a comon venture with the Territory of French Polynesia, the CNEXO, Centre Océanologique du Pacifique (Vairao Tahiti), has set up a new technique for mass pro-duction of Macrobraahium rosenbergii post-larvae, at an experimental scale :
high density' . (more than 100 larvae /liter) 4 clear water, preliminarily treated, daily changed, with daily close controls of the
water conditions and of larvae, average production 50 post-larvae/liter. A pilot hatchery was set up in the third quarter of 1976.
The facilities and the first production, which ended with the stocking of half a million post-larvae in ponds, are described and
analysed. The results confirm that the technique is reliable and that the production tanks of 2 m3 give as good results as...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41607/40816.pdf
Larval rearing and spat production of green mussel Mytilus viridis linnaeus in french Polynesia
Provedor de dados: 5
Autores: AQUACOP.
To develop mussel culture in the South Pacific and especially in French Polynesia, trials for producing spat of Mytilus viridis
were conducted at the Centre Océanologique du Pacifique (Cap) of the Centre National pour l'Exploitation des Océans (CNEXO)
in Tahiti. Spawning is attained through thermal stimulation. Larval rearing is conducted in 800-liter cylindroconical tanks. Every
two days the water is changed and antibiotics are added as a preventive treatment. Monochrysis lutheri and an Isochrysis locally
isolated are used as food. Metarmorphosis and settlement are achieved between the 10th and 17th days. A 15 m3 tank supplied
with flowing water from a shrimp rearing pond is used for the pre-growth. The marketable spat size (7-8 mm, 40 mg) is reached
in...
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/acte-4422.pdf
Douze ans d'aquaculture tropicale
Provedor de dados: 5
Autores: AQUACOP.
An important part of global aquaculture production comes from countries situated in the tropical "belt". Aquaculture in these
countries must undergo significant development in the coming decade. Progress in aquaculture development has been underway
for the last ten years. High temperatures lead to rapid and continuous growth allowing for year-round production and utilisation of
vast coastal areas with unexploited brackish water. Countries interested by this activity are by and large developing countries and
the socio-economic conditions are favourable, with an abundant workforce, high local demand and the need create export markets.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-4403.pdf
About the concept of crowding disease and sanitary lot in modern intensive aquaculture : a short note
Provedor de dados: 5
Autores: AQUACOP.
Most of the diseases that occurred in modern intensive aquaculture are due to opportunistic pathogens and can be considered as
crowding diseases. The application of the sanitary lot technique would greatly reduce the spread of such diseases. [NOT
CONTROLLED OCR]
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/acte-4424.pdf
Use of serum protein concentration optimize penaeid spawner quality
Provedor de dados: 5
Autores: AQUACOP.
From June 1981 to September 1982, the serum protein concentration has been used as an index of shrimp's hea1th for P.monodon
female selection in the maturation units at the COP (Vairao, Tahiti). Three lots were separated according to the food supply during
the pregenitor's life and the spawning index (number of spawn per female and per month) was then monitored for each female.
With a captive broodstock, a minimum serum protein concentration is needed for spawning ability. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4445.pdf
Production of feeds to support shrimp farming in Tahiti (french Polynesia)
Provedor de dados: 5
Autores: AQUACOP.
Shrimp production mainly of Macrobrachium rosenbergii but also of peneids is now starting on a commercial basis in Tahiti. This
production is sustained by conjugated efforts of Service de l'économie Rurale, Office de la Recherche et des Ressources
Océaniques (ORERO) et Centre Océanologique du Pacifique (COP). Different kind of feeds have been developed and produced.
[NOT CONTROLLED OCR]
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-4446.pdf
Macrobrachium rosenbergii (De man) culture in Polynesia : progress in developing a mass intensive
larval rearing technique in clear water
Provedor de dados: 5
Autores: Aquacop, Aquacop.
To develop Macrobrachium rosenbergii (de Man) culture in French Polynesia, a high density larval rearing method in clear water
for post-larvae mass production has been set up by the "Centre Océanologique du Pacifique". Based on three years of experiments,
a production of 60 postlarvae per liter in aOO-liter tank was obtained. The methodology (conical bottom tank, static system with
one total daily water exchange, no phytoplankton), the environmental conditions (temperature, light, color of the tank), the water
quality control (chlorination, antibiotics, aeration), the larval food (quality and quantity) are given and discussed. The model was
used to build a hatchery on a pilot scale (capacity 600,000 post-larvae every 2 months). Due to a high level of...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-4410.pdf
Incorporation de protéines végétales dans un aliment composé pour crevettes Macrobrachium
rosenbergii
Provedor de dados: 5
Autores: Aquacop, Aquacop.
In order to know more about nutritional acceptance of a freshwater prawn Macrobrachium rosenbergii and to obtain additional
information on the feedstuffs which can be used in a prawn diet, several growth tests were carried out. Three sets of experimental
tanks were used. Diets were combined so as to introduce either copra meal or acacia meal, plus troca meaI. The major ingredients
are tropical products, and were easy to col1ect in large quantites. The protein Ievel was maintained at about 30%. In the first
experiment, it was found that a 40% copra meal diet resulted in a fair rate of growth. A higher level of copra meal brought about
similar growth levels and a survival rate which was not significantly lower (analysis of variance). This result was checked...
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-4408.pdf
Production de naissain et élevage de la moule verte, Mytilus viridis en Polynésie française
Provedor de dados: 5
Autores: Aquacop, Aquacop.
En vue de développer la conchyliculture dans le Pacifique Sud, le CNEXO et le Service de la Pêche de Polynésie française
s'efforcent de mettre au point un élevage de bivalves, le CNEXO concentrant ses efforts sur la production de naissain et le
prégrossissement , le Service de la Pêche sur le grossissement. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-4425.pdf
Reproduction in captivity and growth of Penaeus monodon, Fabricius in Polynesia
Provedor de dados: 5
Autores: Aquacop, Aquacop.
To develop shrimp fanning in French Polynesia where no indigenous commercial species of penaeid prawn exists, the first step is
to select the right species according to the following criteria: maturation and spawning in captivity, mass production of
post-larvae, fast growth at semi-intensive density, acceptability of artificial diet, disease resistance and hardiness. This paper
presents the results on P. monodon, Fabricius, the largest Indo-Pacific species. Experiments have been conducted in the "Centre
Océanologique du Pacifique" in Tahiti Island where the environmental conditions are water temperature range 25-29 C, salinity
35 ppt, pH 8.2. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-4412.pdf
Macrobrachium rosenbergii (De man) culture in Polynesia : observations on the water
chemodynamism in an intensive larval rearing
Provedor de dados: 5
Autores: Aquacop, Aquacop.
In order to specify the limits of the high density larval rearing method (80-100 larvae per liter) in clear water with daily total
exchange and to control the water quality evolution, the nitrite and total ammonia were measured. Nitrite concentrations in
antibiotic treated tanks stayed law (5 ug N02-N/l) but can reached 40 ug N02-N/l after 41 days in untreated tanks, in spite of daily
water exchange. Maximum concentrations of total ammonia were 1.70 ppm N during a 24-hour cycle. In the rearing conditions
(pH 7.85 to 8.20, temperature 25 to 28 C) the un-ionized ammonia concentrations were 0.07 to 0.18 ppm N. At thase levels, no
specifie larval stress was noted. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-4413.pdf
Maturation and spawning in captivity of penaeid shrimps
Provedor de dados: 5
Autores: Aquacop, Aquacop.
As no indigenous species of commercial penaeid shrimp live in the waters of French Po1ynesia, the pre1iminary step in
deve10ping shrimp aquaculture was to obtain maturation and spawning in captivity. Five species have been investigated.
Wi1d-caught juveni1es from the New Ca1edonia 1agoon (f. merguiensis, f. semisulcatus, ~. ensis) and post1arvae from the
Ga1veston NMFS 1aboratory (P. aztecus) and Fujinaga Institute (f. japonicus) have been used to-obtain adu1t stock. Shrimps are
reared in circu1ar tanks of 12 m3 with a continuous water circulation through a coral sand bed. Rate of exchange is from 1 to 3
times a day. Throughout the year water temperature is between 25 and 29 C, sa1inity around 34.5 ppt, and pH 8.2. Solar energy is
reduced by shade covers....
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/acte-4406.pdf
Résultats expérimentaux sur Penaeus japonicus : spécificités des besoins nutritionnels (protéines et
acides gras)
Provedor de dados: 5
Autores: Aquacop, Aquacop.
The purpose of this study was to determine the range of response to three commercial penaeid prawn diets, considering their
levels of proteins and polyunsaturated fatty acids. Growth tests were made on one species P. Japonicus. [NOT CONTROLLED
OCR]
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/acte-4409.pdf
Observations on diseases of crustacean cultures in polynesia
Provedor de dados: 5
Autores: Aquacop, Aquacop.
First important problems in pathology at the Centre Océanologique du Pacifique (COP) have been met during larval rearings of
penaeid shrimps and Hacrobrachium rosenbergii. In penaeids, heavy mortalities during the zoea and mysis stages have led to the
diagnosis of two main types of diseases: a bacterial necrosis of the appendages and a fungus disease. Two preventive treatments
with antibiotics during the zoea stages and a continuous treatment with a selective herbicide (Treflan) allow a consistent
production of 100 post-larvae/liter (80% survival from the nauplius stage). With Macrobrachium rosenbergii, during the larval
rearing, mortalities of bacterial origin have been recorded in some experiments. The observation of appendage necrosis allows
early...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-4411.pdf
Opération crevettes territoire-Cnexo. Bilan des travaux de la quatrième convention (1976-1977) vol. 2
: annexes
Provedor de dados: 5
Autores: Aquacop, Aquacop.
Depuis 1973, dans le cadre d'un contrat avec le territoire de Polynésie française, le Centre Océanologique du Pacifique du Cnexo a
mis au point une technique originale de production de masse de post-larves de Macrobrachium rosenbergii.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00018/12940/9906.pdf
First experiments on the rearing of tropical carangidae in floating cages
Provedor de dados: 5
Autores: Aquacop, Aquacop.
In order to determine the feasibility of fish culture in French Polynesia's lagoons, preliminary tests were performed in 1973 and
1974. Juveniles (7 to 10 g) of three Carangidae species (Caranx melampygus, C. elacate, C. ignobilis) were caught in the wild and
transported to the laboratory; three lots were dispatched among two small tanks (500 liters) with 10 animals each and a floating
cage (6 x 6 x 4 m; 1.5 cm mesh) with 900 animals. The range of water temperature was 25 ta 27 C, salinity was about 34.5 ppt,
and pH was 8.2. Food was given in the form of a moist pellet consisting of 8O% dry powder mixed with fresh bonito flesh or
troca flesh. Such a diet has a 40% protein content due essentially to fish meal (sun-dried lagoon fish). These moist pellets...
Tipo: Text
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/acte-4407.pdf
Shrimp and prawn farming in the western hemisphere
Provedor de dados: 5
Autores: Aquacop, Aquacop.
Dr. Michel explained that obtaining spawners in Japan and the United States is quite different from the Tahitian problem, since
AQUACOP's gravid shrimp must be flown in to Papeete from New Caledonia or the Fiji Islands and then trucked several hours to
the Centre Oceanologique. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/rapport-4440.pdf
Modélisation de la résistance aux chocs de salinité des postlarves de Penaeus vannamei
Provedor de dados: 5
Autores: Aquacop, Aquacop; Le Moullac, Gilles; Damez, D.
The notion of penaeid shrimp postlarvae quality, which implies a survival potential, is still a subjective parameter. The
zootechnical criteria and the visual observations are not sufficient to evaluate the physiological condition of the hatchery reared
postlarvae. The resistance of postlarvae to salinity shocks is a representative criteria of their condition. The goal of this study is to
present a non-linear regression model at 2 variables (size, salinity) for the P. vannamei postlarvae resistance to salinity shocks.
Between the second and the twentieth day after metamorphosis; 5 salinity shocks (20, 15, 10, 5 and 20/00) were tested daily, each
one with 50 postlarvae. Survival rates were recorded after 2 hrs. Concurrently, the postlarvae growth in the...
Tipo: Text
Palavras-chave: Salinity; Resistance; Growth; Postlarvae; Penaeus vannamei; Salinité; Résistance; Croissance; Postlarve;
Penaeus vannamei.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-4430.pdf
Intercalibration de l’indicateur « macroalgues intertidales » dans le cadre de l’application de la
Directive Cadre sur l’eau
Provedor de dados: 5
Autores: Ar Gall, Erwan; Le Duff, M; ,.
Ce rapport répond aux exigences de la Directive Européenne Cadre sur l’Eau et notamment l’obligation d’intercalibration des
indicateurs biologiques. L’item biologique concerné par cet exercice est le compartiment des macroalgues intertidales. Ce travail
porte plus particulièrement sur la comparaison et l’harmonisation des résultats obtenus par les métriques retenues par l’Espagne et
la France. Cette harmonisation a pour but d’éviter les discontinuités de qualification du milieu de part et d’autre d’une frontière.
L’exercice porte surtout sur l’ajustement des seuils permettant de définir les différentes classes.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00026/13728/10844.pdf
Seasonal variability in trypsin and alpha-amylase activities caused by the molting cycle and feeding
habits of juvenile pink shrimp Farfantepenaeus duorarum (Burkenroad, 1939)
Provedor de dados: 5
Autores: Aragon-axomulco, Heron; Chiappa-carrara, Xavier; Soto, Luis; Cuzon, Gerard; Arena, Leticia; Maldonado, Carlos;
Cardenas, Rene; Gaxiola, Gabriela.
In view of the relationship between shifts in diet composition and the activity of digestive enzymes in penaeid shrimp, the present
study focused on the analysis of digestive trypsin and a-amylase activities of wild Farfantepenaeus. duorarum (Burkenroad, 1939)
juveniles and their changes in phenotypic expression, during the molt cycle as endogenous factor and their changes due to
different feeding regimes (exogenous factor) in relation with delta C-13 and delta N-15 isotopic signature as an index of food
assimilation induced by the seasonal availability of food items in the nursery area. Wild juveniles of F. duorarum were captured
from April 2007 to February 2008, in the Celestun coastal lagoon, Yucatan, Mexico. Samplings were carried out considering all...
Tipo: Text
Palavras-chave: Coastal lagoons; Digestive enzymes; Farfantepenaeus duorarum; Feeding habits; Pink shrimp.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00078/18880/16487.pdf
A study of geochemistry and hydrodynamics in Hutt Lagoon (Western Australia)
Provedor de dados: 5
Autores: Arakel, A V.
Hutt Lagoon, in the Perth Basin, Western Australia is a shallow (< 11 m) evaporitic basin, developed as a result of ponding in a
Pleistocene calcreted dune terrain. Holocene sequence in the lagoon reflects a history of evaporite sedimentation through
successive stages ranging from open marine to pond and playa environments. The contemporary lagoon is a playa surface in
which sedimentation is related to distribution and interaction of hydrologic units (groundwaters, seawaters and lagoonal brines).
Precipitation is restricted to ephemeral halite in ponded waters, and diagentic emplacement of CaCO sub(3) and CaSO sub(4)
minerals in lagoonal sediments. Playa surfaces, predominantly below sea-level, fundamentally control the lagoonal circulation
system;...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00246/35717/34226.pdf
Processes leading to the coexistence of a host and its parasitoid in homogeneous environments: The
role of an infected dormant stage
Provedor de dados: 5
Autores: Arancio, Marc; Sourisseau, Marc; Souissi, Sami.
Theoretical studies have usually been used to explain host–parasitoid persistence in conditions of spatial heterogeneity or in
homogeneous environments with specific conditions. In shallow estuaries where spatial heterogeneity is prevented by tides and
river input, a common host–parasitoid system (dinoflagellate-Amoebophrya spp.) is able to persist even in the absence of specific
conditions described in the literature. Recent observations have revealed that the cyst stage (during which the dinoflagellate host
can survive in difficult environmental conditions in a dormant stage) can be infected by the parasitoid. The
encystment/excystment process is suspected to be the basis for the long-term persistence of the system. In this work, the
coexistence of...
Tipo: Text
Palavras-chave: Individual-based model; Dinoflagellate; Parasitoid; Amoebophrya; Host-parasite interactions; Sources of
coexistence.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00180/29119/27692.pdf
L'étang de Bages-Sigean. La pêche et les activités sur le plan d'eau
Provedor de dados: 5
Autores: Aranda, Alain.
Notre objectif a été de rassembler dans un document synthétique les données disponibles sur les activités liées au plan d'eau de
l'étang de Bages-Sigean. Cet inventaire souligne la spécificité et l'organisation saisonnière des modes de pêche. La pêcherie
d'anguille (Anguilla anguilla) apparaît nettement comme la ressource essentielle de cette lagune. Le classement en réserve
naturelle de l'étang de Bages-Sigean devrait préserver le fragile équilibre de cet espace lagunaire unique.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00039/15037/12371.pdf
Individual biomass, based on body measures, of copepod species considered as main forage items for
fishes of the argentine shelf
Provedor de dados: 5
Autores: Araoz, Ncf.
Mean wet weights, prosome length-weight and prosome width-weight relationships are established for the later stages of the
copepods C. carinatus, C. australis, A. tonsa, C. vanus, C. brachiatus and D. forcipatus from San Jorge Gulf. Individual biomass
was estimated by the morphometric method. The potential model relating size and weight was selected for the best fit. Prosome
width was a better weight predictor than prosome length in almost all developmental stages and both sexes of the species.
Tipo: Text
Palavras-chave: PLANKTONIC COPEPODS; ARGENTINE SHELF WATERS; INDIVIDUAL BIOMASS; SIZE-WEIGHT
RELATIONSHIPS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21382/18982.pdf
Interactions between a natural food web, shellfish farming and exotic species: The case of the Bay of
Mont Saint Michel (France)
Provedor de dados: 5
Autores: Arbach Leloup, F.; Desroy, Nicolas; Le Mao, Patrick; Pauly, D.; Le Pape, Olivier.
To ensure sustainable uses of the coastal zone, an integrated ecosystemic approach and ecosystem models are required to frame
ecological processes and evaluate environmental impacts. Here, a mass-balance trophic (Ecopath) model of the Mont Saint Michel
Bay (MSMB) was developed, to analyze the bay's functioning as an ecosystem. This bay, intensively exploited by fishing and for
shellfish farming, is also suffering from the proliferation of the gastropod Crepidula fornicata, an exotic species. The MSMB
model has 18 compartments, from the primary producers to top predators, and emphasizes the large biomass of filter feeders. The
model identified the MSMB as a highly productive ecosystem controlled largely from the bottom-up, and strongly impacted by
huge...
Tipo: Text
Palavras-chave: Mont Saint Michel Bay; Crepidula fornicata; Invasive species; Shellfish farming; Trophic model; Ecopath.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2007/publication-2605.pdf
Etude halieutique de projet de site Penly (Seine-Maritime). Rapport sur le premier cycle annuel.
Zooplanctonologie
Provedor de dados: 5
Autores: Arbault, Suzanne; Beaudoin, J.; Lacroix, Nicole.
L'installation de centrales thermiques de grande puissance sur le littoral étant susceptible d'entraîner des modifications au niveau
des différents écosystèmes subissant les effets du processus de refroidissement, parmi les études préalables qui s'imposent figurent
celles relatives à la biologie des espèces marines exploitables et aux activités halieutiques. C'est le cas pour le site de Penly,
sélectionné par E.D.F. en Haute-Normandie, objet de ce rapport.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00026/13748/10869.pdf
Etude halieutique de projet de site Penly. Rapport de fin d'étude 1ère partie. Zooplanctonologie
halieutique, Volume 1
Provedor de dados: 5
Autores: Arbault, Suzanne; Beaudouin, J; Lacroix, Nicole.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00026/13747/10868.pdf
Etude halieutique d'avant projet de site Penly (Seine-Maritime). Rapport de synthèse. Volume I et II
Provedor de dados: 5
Autores: Arbault, Suzanne; Beaudouin, Jacqueline; Lacroix, N; Deschamps, G.
L'Electricite de France a sélectionné en Haute-Normandie deux emplacements possibles pour l'implantation éventuelle de
centrales thermiques nucléaires. L'un de ces deux sites, celui du Fond de Penly est le sujet du présent rapport.
L'implantation en
bord de mer de ces centrales thermiques nucléaires de grande puissance est prévue pour répondre aux besoins énergétiques des
zones industrielles et urbaines de Rouen, du Havre et de la Région parisienne. Le fonctionnement d'une telle centrale nécessite une
importante quantité d'eau (200 m3/s environ) afin de refroidir les condenseurs. Cette eau introduite dans les circuits de
refroidissement a la température qui est celle de l'environnement marin, est rejetée dans le milieu naturel après avoir subi une...
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00006/11678/8345.pdf
Etude halieutique complémentaire d'avant-projet de site Penly (Seine-Maritime)
Provedor de dados: 5
Autores: Arbault, Suzanne; Beaudouin, Jacqueline; Lacroix, N; Deschamps, M.g.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00006/11677/8344.pdf
Ichthyoplancton oeufs et larves de poissons teleosteens dans le Golfe de Gascogne en 1964
Provedor de dados: 5
Autores: Arbault, Suzanne; Boutin, Nicole.
The Bay of Biscay—sensu lato, from the Cornouaille peninsula to the northern coasts of Spain—lines of French coasts and
harbours a great number of edible fish. It thus holds a pivotal position in French fisheries oceanography. The Scientific and
Technical Institute of Marine Fisheries thus organised oceanographic cruises on board the research vessel "Thalassa" to carry out
seasonal studies on ichthyoplankton and environmental factors (temperature, salinity, oxygen) over a five-year period. The
ichthyoplankton study had two goals: first, to identify eggs and larvae of all fish species in the area and second, to detect eggs and
larvae of certain fish of high economic value, in order to potentially locate adults in the same areas and at the same time...
Tipo: Text
Ano: 1968
URL: http://archimer.ifremer.fr/doc/1968/publication-3190.pdf
Essais comparatifs des pouvoirs de capture de deux filets a plancton (Gulf3 encased et bongo).
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix, Nicole.
The object of this study is principally to compare the efficiency of 2 plankton nets (Gulf III encased and Bongo) used for the
capture of fish eggs and larvae, especially Clupeidae and Engraulidae, in the Bay of Biscay (May 1974). Whereas the Gulf III is
more efficient for the capture of eggs, the Bongo gives better results for the capture of larvae.
Tipo: Text
Palavras-chave: ANE; Europe; Biscay Bay Engraulidae Clupeidae Gear selectivity Ichthyoplankton surveys Larvae Eggs
Plankton collecting devices Zooplankton.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2019.pdf
Oeufs et larves de Clupeides et Engraulides dans le Golfe de Gascogne (1969-1973). Distribution des
frayeres. Relations entre les facteurs de milieu et la reproduction.
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix, Nicole.
This study indicates the presence of eggs and larvae of sardines, sprats and anchovies in the Bay of Biscay and the relations of
spawning grounds with the average environmental conditions fron 1969 to 1973. The geographical and seasonal distribution of the
spawning grounds of these three species are given.
Tipo: Text
Palavras-chave: ANE; Biscay Bay Engraulis encrasicholus Sprattus sprattus Sardina pilchardus Ichthyoplankton surveys
Spawning grounds.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1971.pdf
Aires de ponte de la sardine, du sprat et de l'anchois dans le golfe de gascogne et sur le plateau
celtique resultats de 6 annees d'etude
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix, Nicole.
This research work was undertaken in 1964, within the more general context of study programmes of the Institute of Science and
Technology of Maritime Fishing on teleosteen fish eggs and larvae and the relationship of egg-laying areas with hydrology. Since
their catch is a significant contribution to the country's economy (15,000 tonnes of sardines in 1967, 6,000 in 1968, 8,000 in 1969
and 4,427 of anchovies were caught the same year), it seemed necessary to specify the breeding conditions of these fish and the
location of their breeding grounds, then to try to forecast fishing stocks. In this research work, we will study more particularly the
year 1968, which seems to us very representative and we will compare the results with those of 1964, 1965, 1966...
Tipo: Text
Ano: 1971
URL: http://archimer.ifremer.fr/doc/1971/publication-2385.pdf
Variations de l'abondance des oeufs et larves de maquereau dans le Golfe de Gascogne (1964-1973).
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix, Nicole.
This paper studies the variations of mackerel eggs and larvae in the Bay of Biscay from 1964 to 1973. It indicates the
geographical and seasonal spawning grounds of this species and their eventual relations with the thermal structure.
Tipo: Text
Palavras-chave: ANE; Biscay Bay Scomber scombrus Long term changes Ichthyoplankton surveys Spawning grounds.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1972.pdf
Epoques et aires de ponte des poissons téléosteens du Golfe de Gascogne en 1965-1966 (oeufs et larves)
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix-boutin, Nicole.
This study is the result of analysing harvests from 1965 and 1966 and is an integral part of the campaigns dedicated to the
seasonal study of ichthyoplankton and environmental factors in the Gulf of Gascony. It therefore complements the results acquired
for the year 1964 and that are already published (S. ARBAULT, N. BOUTIN, 1968) and is an integral part of a programme the
later continuation of which will specify even more knowledge of the various species' egg-laying sites and periods, as well as the
ecological laws that govern them, which is an important factor for the scientific forecasting of fishing. For this research work, we
would like to thank Mrs. M. L. FURNESTIN who, from the beginning, has never hesitated to give us her advice and help. Six...
Tipo: Text
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-3166.pdf
Quatre ans de mesures volumetriques de plancton total dans le Golfe de Gascogne (1964-1967)
Provedor de dados: 5
Autores: Arbault, Suzanne; Lacroix-boutin, Nicole.
This work is about 14 seasonal campaigns carried out by the oceanographic ships Thalassa, La Pélagia and Roselys in the Gulf of
Gascony and the Celtic Sea. It aims to highlight the seasonal quantitative variations of planktonic harvests according to the
temperature of the waters. In 1964, four campaigns took place: February (98 stations), May (104 stations), August (101 stations)
and November (104 stations), which cover an extensive site, from the headlands of Cornouaille to Cape Finisterre. In 1965, the
number of stations was fewer: approximately 22 for each campaign. In 1966 (March: 94 stations, May: 99 stations) and 1967
(March: 125 stations, May: 135 stations, August: 140 stations, November: 134 stations) the sector studied does not include the
Celtic...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-3147.pdf
Essai de cryoconservation des gamétophytes de l'algue alimentaire Undaria pinnatifida (Laminariale)
Provedor de dados: 5
Autores: Arbault, Suzanne; Renard, Philippe; Pérez, Rene; Kaas, Raymond.
Low temperature tolerance was determined for gametophytes of food alga Undaria pinnatifida according to various
cryopreservation methods. Survival durations after storage in a medium containing 28% glycerol at −80 °C or in a 5-10% glycerol
solution at −196 °C were only 9 and 4 days respectively. On the other hand, cooling at 5 °C/min. and storage at −15 °C for 15
minutes, without cryoprotective medium, did not reduce viability but this was highly decreased by storage for 15 minutes at −30
or −196 °C, with or without DMSO. The morphological cooling injuries were depigmentation and/or a contraction of the cells.
Tipo: Text
Palavras-chave: Algue; Cryoconservation; Gamétophyte; Undaria pinnatifida; Alga; Cryopreservation; Gametophyte; Undaria
pinnatifida.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00189/30071/28559.pdf
Microbiological monitoring of bivalve mollusc harvesting areas - Guide to good practice: technical
application
Provedor de dados: 5
Autores: Arcangeli, Giuseppe; Bjergskov, Thyra; Butler, Catherine; Caricato, Paolo; Catherine, Martial; Lee, Ron; Maneiro,
Juan; Poelman, Marnix; Squintani, Gabriele; Alvarez, Cristina; Latini, Mario; Piquet, Jean-come; Caricato, Paolo; Dore, Bill;
Pol-hofstad, Irene; Schultz, Anna Charlotte.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00291/40250/38626.pdf
Etude sur les possibilités de développement de la mytiliculture et de l'ostréiculuture dans l'archipel
des Iles de la Madeleine - Province du QUEBEC (Canada)
Provedor de dados: 5
Autores: Archambeau, Guy; Trochon, Pierre.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/00045/15613/13017.pdf
Voyage du S.Y. Belgica 1897 - 1899. Volume 3, part 5. Météorologie - Aurores australes
Provedor de dados: 5
Autores: Arctowski, Henryk.
Les aurores australes ne sont encore que très imparfaitement connues, car fort peu d 'observations suivies ont été faites dans
l'hémisphère sud. M. W. Boller, qui a dressé le catalogue complet des aurores australes notées de puis 1640 jusqu'à 1895
(c'est-à-dire pour un laps de temps de plus de 250 années), a compté en tout 1582 observations, correspondant à 791 aurores
différentes. Sur ce nombre, la plupart n'ont été décrites que d'une façon très insuffisante. Néanmoins, M. Boller a pu déduire de
ces observations deux faits d'une importance capitale, à savoir : que la distribution géographique des aurores australes, par rapport
au pôle magnétique sud, ressemble à celle des aurores boréales, et que les périodes séculaires sont les mêmes. [OCR NON
CONTRÔLE]
Tipo: Text
Ano: 1901
URL: http://archimer.ifremer.fr/doc/1901/publication-7342.pdf
Voyage du S.Y. Belgica 1897-1899. Volume 5. Rapport sur les densités de l'eau de mer
Provedor de dados: 5
Autores: Arctowski, Henryk.
During the cruise of the Belgica, from the island of Madeira to Rio de Janeiro, in Montevideo and the Magellan straight,
determinations of surface water density have been carried out three times a day. Later, during the first soundings of the Belgica,
conducted between State Island and the southern Shetlands, bottom water was sampled and studied. These studies, interrupted
during the geographic discovery cruise in Antarctica, were resumed in the Pacific Ocean, beyond the Polar Circle, and, during the
wintering of the Belgica in the South Pole ice fields, water was sampled at great depths and studied, on board, in the physics
laboratory. This report details the numerical results obtained through these observations. The first two paragraphs deal with the...
Tipo: Text
Ano: 1908
URL: http://archimer.ifremer.fr/doc/1908/publication-4736.pdf
Voyage du S.Y. Belgica 1897-1899. Volume 5. Les glaces. Glace de mer et banquises
Provedor de dados: 5
Autores: Arctowski, Henryk.
Before the cruise of the Belgica, very few studies had been carried out on the ice fields of the southern oceans. Fricker, read
through the travel books of Ross, Dumont d'Urville, Wilkes and other sailors who cruised the Antarctic oceans, in search of
information on sea-ice, and summed up in very few pages all the knowledge on the South Pole ice fields in 1898, at the same time,
the Belgica was trapped in the ice fields.
Tipo: Text
Ano: 1908
URL: http://archimer.ifremer.fr/doc/1908/publication-4737.pdf
Voyage du S.Y. Belgica 1897-1899. Volume 5. Les glaciers
Provedor de dados: 5
Autores: Arctowski, Henryk.
At any time of the year and anywhere on Earth, the air temperature drops as the altitude increases. Climate is rougher at the top of
mountains than in the surrounding plains, and the higher you get the earlier snow appears and the longer it stays as you move
towards summer. In the Alps, at 2 900 m, the influence of winter is predominant and summer heat cannot make the snow melt and
disappear, even for a few days. As a consequence, snow piles up and packs down. In the great Alpine massif, the lower limits of
this permanent snow cap can be traced approximately enough to imagine the surface, almost flat, marking the boundary of this
snow cap. This imaginary boundary marks the limit of the everlasting snow.
Tipo: Text
Ano: 1908
URL: http://archimer.ifremer.fr/doc/1908/publication-4735.pdf
Voyage du S.Y. Belgica 1897 - 1899. Volume 3, part 1 et 4. Météorologie
Provedor de dados: 5
Autores: Arctowski, Henryk.
L'hivernage de la BELGICA, dans les glaces du pole Sud, a fourni le premier journal d'observations météorologiques poursuivies
pendant toute une année dans les régions antarctiques. Ces observations présentent un intérêt considérable. Les spéculations que
l'on faisait au sujet du climat des régions polaires antarctiques n'avaient aucun fondement rationnel, de sorte que l'hypothèse d'un
climat purement marin, très humide et relativement tempéré, pouvait être présentée avec une apparence tout aussi scientifique que
celle d'un climat continental, extrêmement rigoureux. L'étude des phénomènes optiques que l'on observe dans l'atmosphère,
formant un chapitre de météorologie bien distinct , il m'a paru avantageux de rassembler, et de présenter séparément, toutes...
Tipo: Text
Ano: 1904
URL: http://archimer.ifremer.fr/doc/1904/publication-7357.pdf
Voyage du S.Y. Belgica 1897-1899. Volume 5. Océanographie. Relations thermiques
Provedor de dados: 5
Autores: Arctowski, Henryk; Robert Mill, Hugh.
La BELGICA a donc été le premier bateau à bord duquel des sondages thermométriques ont été effectués dans les régions
antarctiques, à l'aide d'instruments modernes, et à des profondeurs suffisamment grandes pour déterminer la position du maximum
de température des couches profondes. Ces sondages présentent en outre le réel avantage de ne pas être trop espacés : bien loin
d'être disséminés, au hasard, sur une grande surface du globe, ils sont au contraire groupés de telle sorte qu'ils permettent
d'envisager d'une façon approfondie les portions de l'Océan explorées par l'Expédition, portions qui appartiennent d'ailleurs à deux
régions océaniques différentes et parfaitement caractéristiques au point de vue des relations thermiques qu'elles présentent.
[OCR...
Tipo: Text
Ano: 1908
URL: http://archimer.ifremer.fr/doc/1908/publication-7423.pdf
Transform fault and Rift Valley from bathyscaph and diving saucer
Provedor de dados: 5
Autores: Arcyana,.
The FAMOUS (French-American Mid-Ocean Undersea Study) program was designed to conduct an integrated and detailed
geological, geophysical. and geochemical study of a portion of plate boundary where new oceanic crust is generated and where
some processes leading to the formation of the oceanic lithosphere may appear more clearly (1). The originality of the program
was to include the use, for the first time, of precisely navigated, manned research submersibles in the latter phases of the work at
sea and thus enable methods of classical field geology to be applied to the study of the deep ocean floor. Collection of data on a
scale ranging from centimeters to kilometers was demanded by the narrowness of the surface expression of the plate boundary.
[NOT...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-5080.pdf
From seismic noise to ocean wave parameters: General methods and validation
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Balanche, Abel; Stutzmann, E.; Obrebski, Mathias.
Seismic noise is an indirect source of information on ocean waves. Using a model of noise generation and propagation, seismic
stations can be separated into those that are mostly sensitive to local sea states, and those that integrate sources from a large
oceanic area. The model also provides a classification of noise-generating sea states into three classes. The analysis of Central
California seismic noise data, well correlated with local waves, reveals that class I events dominate in summer, caused by a single
wind-sea system, and for which ocean wave spectral levels are proportional to seismic spectral levels to an exponent b similar or
equal to 0.9. In winter, noise is dominated by class II generation, for which coastal reflection is important, with a...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00083/19443/17051.pdf
Observation of swell dissipation across oceans
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Chapron, Bertrand; Collard, Fabrice.
Global observations of ocean swell, from satellite Synthetic Aperture Radar data, are used to estimate the dissipation of swell
energy for a number of storms. Swells can be very persistent with energy e-folding scales exceeding 20,000 km. For increasing
swell steepness this scale shrinks systematically, down to 2800 km for the steepest observed swells, revealing a significant loss of
swell energy. This value corresponds to a normalized energy decay in time beta = 4.2 x 10(-6) s(-1). Many processes may be
responsible for this dissipation. The increase of dissipation rate in dissipation with swell steepness is interpreted as a laminar to
turbulent transition of the boundary layer, with a threshold Reynolds number of the order of 100,000. These observations...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6452.pdf
Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Collard, Fabrice; Chapron, Bertrand; Ardhuin, Fanny; Guitton, Gilles; Mouche, Alexis; Stopa, Justin.
Swell evolution from the open ocean into sea ice is poorly understood, in particular the amplitude attenuation expected from
scattering and dissipation. New synthetic aperture radar (SAR) data from Sentinel-1A wave mode reveal intriguing patterns of
bright oscillating lines shaped like instant noodles. We investigate cases in which the oscillations are in the azimuth direction,
around a straight line in the range direction. This observation is interpreted as the distortion by the SAR processing of crests from
a first swell, due to the presence of a second swell. Since deviations from a straight line should be proportional to the orbital
velocity toward the satellite, swell height can be estimated, from 1.5 to 5 m in the present case. The evolution of this...
Tipo: Text
Palavras-chave: Ocean waves; SAR; Sea ice.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00256/36718/35332.pdf
How ocean waves rock the Earth: two mechanisms explain microseisms with periods 3 to 300 s
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Gualtieri, Lucia; Stutzmann, Eleonore.
Microseismic activity, recorded everywhere on Earth, is largely due to ocean waves. Recent progress has clearly identified sources
of microseisms in the most energetic band, with periods from 3 to 10 s. In contrast, the generation of longer-period microseisms
has been strongly debated. Two mechanisms have been proposed to explain seismic wave generation: a primary mechanism, by
which ocean waves propagating over bottom slopes generate seismic waves, and a secondary mechanism which relies on the
nonlinear interaction of ocean waves. Here we show that the primary mechanism explains the average power, frequency
distribution, and most of the variability in signals recorded by vertical seismometers, for seismic periods ranging from 13 to 300 s.
The secondary...
Tipo: Text
Palavras-chave: Hum; Infragravity waves; Numerical model; Microseisms.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00251/36219/34769.pdf
Noise generation in the solid Earth, oceans and atmosphere, from nonlinear interacting surface
gravity waves in finite depth
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Herbers, T. H. C.
Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth,
contain noise with dominant periods between 3 and 10 s, which is believed to be excited by ocean surface gravity waves. Most of
this noise is explained by a nonlinear wave-wave interaction mechanism, and takes the form of surface gravity waves, acoustic or
seismic waves. Previous theoretical work on seismic noise focused on surface (Rayleigh) waves, and did not consider finite-depth
effects on the generating wave kinematics. These finite-depth effects are introduced here, which requires the consideration of the
direct wave-induced pressure at the ocean bottom, a contribution previously overlooked in the context of seismic noise. That...
Tipo: Text
Palavras-chave: Acoustics; Geophysical and geological flows; Surface gravity waves.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23580/21479.pdf
Waves and Operational Oceanography: Toward a Coherent Description of the Upper Ocean
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Jenkins, A; Hauser, D; Reniers, A; Chapron, Bertrand.
The availability of new operational services for ocean circulation modeling presents a unique opportunity to rethink the
operational forecasting of ocean waves and how circulation and waves may be combined to provide a better understanding of the
upper ocean and enhanced services to society. The large-scale oil spill caused by the wreck of the tanker Prestige off the Spanish
coast in November 2002, and uncertainties on the fate of that pollution, illustrated the gaps in means of observations and
knowledge of relevant processes. The idea of a coupled atmosphere-waves-ocean model was proposed by Klaus Hasselmann
[Hasselmann, 1991], in the context of climate modeling. As waves are the "gearbox" between the atmosphere and the ocean, a
detailed understanding of...
Tipo: Text
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-6330.pdf
A numerical model for ocean ultra-low frequency noise: Wave-generated acoustic-gravity and
Rayleigh modes
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Lavanant, Thibaut; Obrebski, Mathias; Marie, Louis; Royer, Jean-yves; D'Eu, Jean-francois; Howe,
Bruce M.; Lukas, Roger; Aucan, Jerome.
The generation of ultra-low frequency acoustic noise (0.1 to 1 Hz) by the nonlinear interaction of ocean surface gravity waves is
well established. More controversial are the quantitative theories that attempt to predict the recorded noise levels and their
variability. Here a single theoretical framework is used to predict the noise level associated with propagating pseudo-Rayleigh
modes and evanescent acoustic-gravity modes. The latter are dominant only within 200 m from the sea surface, in shallow or deep
water. At depths larger than 500 m, the comparison of a numerical noise model with hydrophone records from two open-ocean
sites near Hawaii and the Kerguelen islands reveal: (a) Deep ocean acoustic noise at frequencies 0.1 to 1 Hz is consistent with
the...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00176/28748/27211.pdf
A numerical model for free infragravity waves: Definition and validation at regional and global scales
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Rawat, Arshad; Aucan, Jerome.
The spectral wave model WAVEWATCH III is extended from the windsea and swell band to lower frequencies, in order to
represent free waves in the infragravity (IG) wave band. This extension is based on an empirical source of IG energy, which is
defined along shorelines from the significant wave height and a mean period. The empirical proportionality factor is found to
reproduce accurately the variations of free IG wave energy in coastal areas, where it was calibrated, and also has a good skill at
global scales. In the open ocean, the model is particularly verified for frequencies in the range 5 to 14 mHz for which ocean
bottom records are sensitive to the IG signal. The model captures between 30% and 80% of the variance in IG wave heights,
depending on...
Tipo: Text
Palavras-chave: Infragravity waves; SWOT; Spectral model.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00181/29272/28639.pdf
Coastal wave reflection, directional spread, and seismoacoustic noise sources
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Roland, Aron.
Coastal reflection is introduced in a phase-averaged numerical wave model, first with a constant coefficient, and then with a
reflection coefficient defined from the shoreface slope and that depends on the incident wave height and mean frequency. This
parameterization is used in both regular and unstructured grids. The calibration involves a site-specific shoreface slope that is
associated with the local geomorphology of the shoreline. Using wave buoy data off Hawaii and the U.S. West Coast, it is found
that coastal reflection is necessary to reproduce observed directional properties of coastal sea states. Errors on the mean
directional spread are reduced by up to 30% for the frequency band 0.04 to 0.30 Hz with, at most locations, very little impact on
the...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00088/19938/17604.pdf
Numerical Wave Modeling in Conditions with Strong Currents: Dissipation, Refraction, and Relative
Wind
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Roland, Aron; Dumas, Franck; Bennis, Anne-claire; Sentchev, Alexei; Forget, Philippe; Wolf, Judith;
Girard, Francoise; Osuna, Pedro; Benoit, Michel.
Currents effects on waves have led to many developments in numerical wave modeling over the past two decades, from numerical
choices to parameterizations. The performance of numerical models in conditions with strong currents is reviewed here, and
observed strong effects of opposed currents and modulations of wave heights by tidal currents in several typical situations are
interpreted. For current variations on small scales, the rapid steepening of the waves enhances wave breaking. Using different
parameterizations with a dissipation rate proportional to some measure of the wave steepness to the fourth power, the results are
very different, none being fully satisfactory, which points to the need for more measurements and further refinements of...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00130/24159/22254.pdf
Ocean wave sources of seismic noise
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Stutzmann, Eleonore; Schimmel, Martin; Mangeney, Anne.
Noise with periods 3 to 10 s, ubiquitous in seismic records, is expected to be mostly generated by pairs of ocean wave trains of
opposing propagation directions with half the seismic frequency. Here we present the first comprehensive numerical model of
microseismic generation by random ocean waves, including ocean wave reflections. Synthetic and observed seismic spectra are
well correlated (r > 0.85). On the basis of the model results, noise generation events can be clustered in three broad classes:
wind waves with a broad directional spectrum (class I), sea states with a significant contribution of coastal reflections (class II),
and the interaction of two independent wave systems (class III). At seismic stations close to western coasts, noise...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00044/15531/12926.pdf
Ocean waves across the Arctic: attenuation due to dissipation dominates over scattering for periods
longer than 19 s
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Sutherland, Peter; Doble, Martin; Wadhams, Peter.
The poorly understood attenuation of surface waves in sea ice is generally attributed to the combination of scattering and
dissipation. Scattering and dissipation have very different effects on the directional and temporal distribution of wave energy,
making it possible to better understand their relative importance by analysis of swell directional spreading and arrival times. Here
we compare results of a spectral wave model – using adjustable scattering and dissipation attenuation formulations – with wave
measurements far inside the ice pack. In this case, scattering plays a negligible role in the attenuation of long swells. Specifically,
scattering-dominated attenuation would produce directional wave spectra much broader than the ones recorded, and swell...
Tipo: Text
Palavras-chave: Ocean waves; Sea ice; Tara; DAMOCLES.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00333/44455/44127.pdf
Observation and parameterization of small icebergs: Drifting breakwaters in the southern ocean
Provedor de dados: 5
Autores: Ardhuin, Fabrice; Tournadre, Jean; Queffeulou, Pierre; Ardhuin, Fanny; Collard, Fabrice.
The variability of small-size iceberg distributions is revealed from a novel analysis of satellite altimeter data. A strong annual
cycle is modulated by pulse-like events confined to single ocean basins, with dense iceberg populations in the South Atlantic in
2004-2005, and in the South Pacific in 2008. Anomalies in sea surface temperatures of the order of 1 degrees C may be related to
the iceberg distribution. Icebergs also appear very strongly associated with anomalies in the heights of ocean waves. A
preliminary parameterization of wave blocking by icebergs significantly reduces wave model errors in the region south of 45
degrees South, and has a perceptible influence on all the west coasts of the Southern hemisphere. (C) 2011 Elsevier Ltd. All
rights...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00044/15535/13317.pdf
Quand la voie du Nord s'ouvrira au trafic maritime
Provedor de dados: 5
Autores: Ardhuin, Fanny.
With the melting of the ice floe, the Arctic Ocean could become navigable. A new maritime way that would be an exciting
alternative to the existing routes.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6368.pdf
Enhanced Arctic Sea Ice Drift Estimation Merging Radiometer and Scatterometer Data
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert.
Satellites enable daily and global coverage of the polar oceans and provide a unique monitoring capability of sea ice dynamics.
Sea ice drift maps can be estimated in Arctic from several satellite sensors, particularly from scatterometers and radiometers. This
study presents the benefits of combining single drift fields at the same resolution into a "merged" field, built at three-and six-day
lags during winters with a 62.5-km resolution. It is shown that combining these drift fields not only increases the reliability of the
displacement estimation and the number of estimated vectors to almost a full ice covered area but also expands the time period
over which these estimations are reliable from freeze until the melt onset. The autumn-winter-spring sea ice...
Tipo: Text
Palavras-chave: Arctic; Advanced Scatterometer (ASCAT); Drift; Merging; Scatterometry; Sea ice.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00088/19895/17729.pdf
L'IFREMER met en cartes les glaces polaires
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert.
The fourth International Polar Year (API) was officially launched at the Palais de la Découverte in Paris in the beginning of
March. This international research effort will spread over two years. The polar specialists hope for an acceleration of the current
programs, especially those dealing with the impact of climate warming on polar regions. Paul Tréguer, member of the French
PAPI sponsoring committee, summarizes the different issues. And two Ifremer scientists explain how they've been observing,
since 1992, the shrinking of the sea ice cover in the North Pole
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6367.pdf
La mer vue du ciel, la glace de mer est cartographiée en continu
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert.
Under the responsibility of French scientists, the Damocles program aims to evaluate the impact of the climate change on the
Arctic ice floe. Some Bretons are involved: a team from the Ifremer Brest has been continuously mapping sea ice drift since 1992.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6369.pdf
Validation of Arctic sea ice drift with IABP buoys
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert.
Satellites enable daily and global coverage of the polar oceans, providing an unique monitoring capability of sea ice dynamics
over Arctic and Antarctic. Available geophysical parameters include ice concentration, extent, type and sea ice drift. Backscatter
map from SeaWinds/QuikSCAT and brightness temperature maps from Special Sensor Microwave Imager (SSM/I) are available
at a pixel resolution of 12,5 km from which ice drift can be estimated for each sensor. Since 1999, IFREMER makes available a
"Merged" sea ice drift data set based on the combination of these drifts at 3 and 6-day lags at the grid resolution of 62,5 km. It has
been demonstrated that combining these drifts increases the number of valid vectors. In this paper, the validation of this...
Tipo: Text
Palavras-chave: Arctic; Buoys; Drift; Sea ice; AMSR E; Radiometer; Scatterometer; Arctique; Bouées; Dérive; Glaces de mer;
AMSR E; Radiomètre; Diffusiomètre.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-1292.pdf
Les glaces de mer. Ca bouge !
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert.
Monitored by satellites and observed by the Ifremer's scientists, sea ices are under high supervision. Since 1992, the Ifremer is the
only institute in the world to conduct a continuous mapping of sea ice drift.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6363.pdf
Les glaces de mer : ça bouge !
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert; Croize Fillon, Denis.
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-6342.pdf
Comment se forme un pancake aux pôles ? ou l'importance d'observer la banquise...
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert; Croize-fillon, Denis.
Sea water freezes at a temperature of -1,8°C, creating scattered pieces of ice similar to pancakes. When agglomerating, these
pieces end up forming a compact surface... the ice floe!
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-6365.pdf
ASCAT/MetOp scatterometer data : first results for sea ice study
Provedor de dados: 5
Autores: Ardhuin, Fanny; Ezraty, Robert; Croize-fillon, Denis.
Backscatter values from scatterometers are commonly used to estimate wind field over oceans, their ability to monitor sea ice
coverage, age and drift has been also demonstrated. Here, ASCAT backscatter coefficient has been processed for sea ice
geophysical interpretation in order to increase the long time series of ice parameters already available. It has been shown that
incidence- adjustment is mandatory for geophysical meaning, the backscatter maps enable the discrimination between multi
year ice and first year ice, these maps can also be used as a basic product for sea ice drift estimation. (Copyright : European
Space Agency ISBN 978-92-9221-239-1 ISSN 1609-042X)
Tipo: Text
Palavras-chave: Sea ice; Wind; Scatterometer; ASCAT; MetOp; Glaces de mer; Vent; Diffusiomètre; ASCAT; MetOp.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6970.pdf
Operational oil-slick characterization by SAR imagery and synergistic data
Provedor de dados: 5
Autores: Ardhuin, Fanny; Mercier, G; Collard, F; Garello, R.
A methodology is proposed for the semiautomatic detection, characterization, and classification of slicks detected in C-band
Synthetic Aperture Radar (SAR). For the first detection step, automatic algorithms were tested on Environmental Research
Satellite (ERS) and Environmental Satellite (EnviSat) images acquired during the Prestige tanker accident. These tests reveal that
simple filter or segmentation methods efficiently detect slicks with high contrasts and simple shapes, while a new and more
complex multiscale method is able to detect a wider range of slicks. The characteristics of automatically detected slicks are then
combined with meteooceanic data in order to eliminate slicks related to wind anomalies and current fronts. The data suggest that...
Tipo: Text
Palavras-chave: Synthetic aperture radar SAR; Satellite measurement; Oil pollution; Image analysis.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-1132.pdf
Aspects biologiques et comportements des concentrations génétiques du thon rouge en méditerranée
Provedor de dados: 5
Autores: Arena, P.
Actual data on the occurence of tunas in the south tyrrhenian sea are given. Bluefin tuna and related species come for spawning in
this area. The main area of reproduction is located between the eastern Sicile, Calabre and Eoliennes Islands. During the spawning
season, tunas gather in large schools swimming in the superficial layers. Their movements are restricted by environmental
conditions, since they are at this time highly sensitive to thermie gradients (thermocline and frontal area).
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-6020.pdf
Variabilité interannuelle de l'hydrologie d'une région d'upwelling (bouée Bayadère, Cap Blanc,
Mauritanie)
Provedor de dados: 5
Autores: Arfi, R.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00109/22065/19707.pdf
Phytoplancton et pollution : premières études en baie de Bietri (Côte d'Ivoire). Traitement
mathématique des données
Provedor de dados: 5
Autores: Arfi, R; Dufour, P; Maurer, Daniele.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00131/24200/22193.pdf
Argo user’s manual V3.03
Provedor de dados: 5
Autores: Argo data management.
This document is the Argo data user’s manual. It contains the description of the formats and files produced by the Argo Data
Assembly Centres (DACs).
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00153/26387/24482.pdf
Expansion of the macroalga Caulerpa racemosa and changes in softbottom macrofaunal assemblages
in Moni Bay, Cyprus
Provedor de dados: 5
Autores: Argyrou, M; Demetropoulos, A; Hadjichristophorou, M.
The recent expansion of the Red Sea macroalga Caulerpa racemosa and its impact on the diversity and abundance of
macrobenthos were examined and compared in the summers of 1992 and 1997, in Moni Bay, Cyprus. The phytobenthic
community of the bay in 1992 was dominated by the seagrass Posidonia oceanica while, in 1997, the Lessepsian migrant C.
racemosa became the most dominant, forming extensive mars. Changes in the vegetation system in Moni Bay have caused
significant compositional changes in macrofaunal assemblages. A total of 178 individuals of 62 species are recorded. The
composition of the macrofauna in 1992 was dominated by gastropods (44 %), crustaceans (22 %), bivalves (17 %), polychaetes
(11 %) and echinoderms (6 %). In 1997, the gastropods and...
Tipo: Text
Palavras-chave: Immigrant lessepsien Caulerpa racemosa benthos communauté baie de Moni; Chypre Lessepsian migrant
Caulerpa racemosa benthos community composition Moni Bay; Cyprus.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43600/43984.pdf
Effets des termes non-linéaires dans les écoulements non-stationnaires à deux couches
Provedor de dados: 5
Autores: Arhan, M.; Cavanie, Alain.
Current and temperature measurements at different spots, offshore and on continental shelves, have shown internal waves
propagating through the stratified waters of the ocean. In some regions, these waves have such amplitudes that it appears difficult
not to take into account the non-linear terms in the equations and the conditions to the limits governing these flows.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/publication-5436.pdf
Saisie et analyse de données des courants particulaires et pressions au voisinage du fond dans la houle
littorale proche du déferlement
Provedor de dados: 5
Autores: Arhan, M.; Ezraty, Robert.
In fact, coastal swell near to the breaker zone is feared by engineers when evaluating the stresses exerted on coastal civil
engineering structures. This fear is mainly caused by the phenomenon's complex nature; a nature which can only be partially
represented by the current theoretical models. Experimentally speaking, the observation techniques we have enable the
quantitative study of coastal swell near to the breaker zone, as well as the characterization of some of its properties and the testing
of some theoretical models which are valid off shore and could be adapted to the coast. This study demonstrates the strong
non-linearity of free surface movements. It also details the conditions of utilization of the Airy and long wave theories in the
evaluation...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-4986.pdf
Campagne CITHER 3 N/O l'Atalante (11 janvier - 2 avril 1995). Recueil de données. Volume 2 :
Données CTD-O2
Provedor de dados: 5
Autores: Arhan, Michel; Billant, Andre; Branellec, Pierre; Mercier, Herle; Groupe CITHER 3.
De mi-janvier à début avril 1995 s'est déroulée la campagne CITHER 3 du programme WOCE-France, dans le but d'étudier les
écoulements aux frontières méridiennes du bassin Atlantique Sud-Est: à l'ouest les échanges avec les Bassins d'Argentine et du
Brésil, et à l'est les écoulements le long du talus continental Africain. Les paramètres hydrologiques et géochimiques requis par le
Programme Hydrologique de WOCE (WHP) ont été mesurés de la surface au fond à 242 stations situées le long de deux radiales,
l'une à 9° W entre le talus continental Ivoirien et la latitude 45° S, l'autre de Cape Town à la position 40° S - 10° E, puis au talus
continental Ghanéen. Ce rapport, qui est le deuxième volume de la série des recueils de données CITHER 3, présente les
mesures...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00238/34919/33288.pdf
Campagne CITHER 3 N/O l'Atalante (11 janvier - 2 avril 1995). Recueil de données. Volume 3 :
Traceurs Géochimiques
Provedor de dados: 5
Autores: Arhan, Michel; Billant, Andre; Branellec, Pierre; Mercier, Herle; Memery, Laurent; Messias, Marie-josé; Morin, Pascal;
Wafar, Mohideen; Alvarez Salgado, Xosé; Aristegui, Javier; Gonzalez-davila, Melchor; Pazo Fernandez, Maria José; Rellan,
Trinidad; Rios, Aida; Bingler, Linda; Groupe CITHER 3.
De mi-janvier à début avril 1995 s'est déroulée la campagne CITHER 3 du programme WOCE-France, dans le but d'étudier les
écoulements aux frontières méridiennes du bassin Atlantique Sud-Est: à l'ouest, les échanges avec les Bassins d'Argentine et du
Brésil, et à l'est, les écoulements le long du talus continental Africain. Les paramètres hydrologiques et géochimiques requis par le
Programme Hydrologique de WOCE (WHP) ont été mesurés de la surface au fond à 242 stations situées le long de deux radiales,
l'une à 9° W entre le talus continental Ivoirien et la latitude 45° S, l'autre de Cape Town à la position 40° S - 10° E, puis au talus
continental Ghanéen. Ce rapport, qui est le troisième volume de la série des recueils de données CITHER 3, présente les...
Tipo: Text
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00238/34920/33291.pdf
Deep lenses of circumpolar water in the Argentine Basin - art. no. 3007
Provedor de dados: 5
Autores: Arhan, Michel; Carton, Xavier; Piola, A; Zenk, W.
[1] Three deep anticyclonic eddies of a species only reported once before [Gordon and Greengrove, 1986] were intersected by
hydrographic lines of the World Ocean Circulation Experiment (WOCE) and South Atlantic Ventilation Experiment (SAVE)
programs in the Argentine Basin. The vortices are centered near 3500 m depth at the interface between North Atlantic Deep Water
and Bottom Water. They have similar to1500-m-thick cores containing Lower Circumpolar Deep Water and a dynamical
influence that may span up to two thirds of the water column. As one eddy was observed just downstream of the western
termination of the Falkland Escarpment, a destabilization of the deep boundary current by the sudden slope relaxation is suggested
as a potential cause of eddy...
Tipo: Text
Palavras-chave: Eddies and mesoscale processes; Western boundary currents; Hydrography.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00000/10057/7797.pdf
Relation statistique entre hauteur et période des vagues de tempête
Provedor de dados: 5
Autores: Arhan, Michel; Cavanie, Alain; Ezraty, Robert.
A theoretical model of composed probability density of wave height and period is based on the results of Cartwright and
Longuet-Higgins on the maximums of a Gaussian random function of order two of narrow spectrum. The concordance with
experiment is satisfactory, even for wide spectrums, in the case of recordings of storms in the North Sea.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-5190.pdf
The Eastern Boundary of the Subtropical North Atlantic
Provedor de dados: 5
Autores: Arhan, Michel; Colin De Verdiere, Alain; Memery, L.
A quasi-meridional hydrographic section carried out between 60-degrees and 20-degrees-N offshore from the European and
African continental slopes is analyzed in terms of water masses and zonal transports in and out of the eastern boundary.
Outstanding features of the meridional distribution of water masses are focused on, such as the transition between North Atlantic
and South Atlantic Central Waters at 20-degrees-25-degrees-N, the properties and anticyclonic circulation of the Rockall Channel
mode water, and the northern boundary of the large-scale Mediterranean Water plume at about 50-degrees-N. An eastward
transport of about 11 X 10(6) m3 s-1 is found to enter the eastern boundary layer at densities lower than 27.25 and feed southward
alongshore...
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00196/30717/29449.pdf
Statistical relations between successive wave heights
Provedor de dados: 5
Autores: Arhan, Michel; Ezraty, Robert.
This paper presents a theoretical and experimental study of the correlation between successive waves. The theoretical model
developed here, uses as starting point Rice's results on the autocorrelation function of the envelope of a narrow band random
gaussian signal. Recent developments by Hasselmann et al. on wave spectra and Cavanie et al. on wave heights and periods
statistics used as input in Rice's model, lead to a theoretical joint probability for successive wave heights. This model is compared
to experimental results computed from 169 North Sea storm wave recordings corresponding to more than 26 000 individual
waves. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5222.pdf
Relations entre les variations de pression au fond et les courants particulaires dans la houle côtière
proche du déferlement
Provedor de dados: 5
Autores: Arhan, Michel; Gouriten, Yves.
In situ recordings of pressure near the bottom and particle velocity in shallow water reveal the non-linear nature of the flow in the
breaker zone. The different frequency domains linked to nearshore currents, wind waves, and turbulence are determined using
correlations and coherences. A quasi-linear pressure-velocity relation exists in the wind wave frequency range. [NOT
CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-5077.pdf
Non-linear deformation of sea-wave profiles in intermediate and shallow water
Provedor de dados: 5
Autores: Arhan, Michel; Plaisted, Ro.
The present paper is a study of the nonlinear deformations of sea-wave profiles in intermediate (20 m depth) and shallow (4 m)
water, based on wave staff and bottom pressure in situ measurements. The nonlinear deformations have been decomposed into
two elementary classes : asymmetry with respect to the mean water surface and asymmetry with respect to a vertical line passed
through the wave crest. The extend of the deformation of the first kind is estimated by computing the experimental statistical
distributions of wave crest heights and through depths.
These distributions are shown to deviate from the Rayleigh law
(applicable to linear sea states), and are well fitted by a second order perturbation model deduced from the Stokes theory. The
second kind of...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-5322.pdf
Anticyclonic and cyclonic eddies of subtropical origin in the subantarctic zone south of Africa
Provedor de dados: 5
Autores: Arhan, Michel; Speich, Sabrina; Messager, Christophe; Dencausse, Guillaume; Fine, Rana; Boye, Marie.
Two eddies, one anticyclonic and the other cyclonic, intersected in the Subantarctic Zone south of South Africa during a
hydrographic transect, are described using a large set of measurements including full depth hydrography, Acoustic Doppler
Current Profiler velocities, biogeochemical tracers, air-sea fluxes and altimetric sea surface height. Both eddies have a subtropical
origin. The anticyclone is an Agulhas ring with convected core water of similar to 12 degrees C, and swirl velocities of 1 m s(-1).
It was 9.5 months old when sampled and had crossed the Agulhas Ridge. Though sampled in summer, it was releasing similar to
200 W m(-2) (sensible plus latent heat flux) to the atmosphere. It was observed adjacent to the Subantarctic Front, illustrating
the...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00051/16220/13745.pdf
Pollutants in deep-sea organisms and sediments
Provedor de dados: 5
Autores: Arima, Satoshi; Marchand, Michel; M.martin, Jean-louis.
Analyses of pollutants, organochlorine residues and heavy metals (Cu, Zn, Mn, Cd, Pb, Hg) were carried out in deep-sea
organisms, Asteridea, Holoturioidea, fishes.Heavy metals conlent was determined in sediments. Organochlorine residues were
detected in all deep-sea organisms.However, the concentrations observed are similar to those for marine organisms from coastal
areas.For heavy metals, high concentrations of mercury, up to 7.5 ppm/dry weight and 6.5 ppm are observed in echinoderms and
sediment respectively.High concentrations of lead, up to 167 ppm, occur in the gills of fishes.For other metals, the values
observed are roughly similar to those from the literature. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5268.pdf
Medspiration - A precursor to the GMES marine core service sea-surface Thematic Assembly Centre
Provedor de dados: 5
Autores: Arino, O; Donlon, R; Robinson, I; Piolle, Jean-francois; Leborgne, P.
The Global Monitoring for the Environment and Security (GMES) initiative lead by the European Commission and ESA recently
opened the call to set up the 'Marine Care Service' for oceanography users. Two of the six planned 'Thematic Assembly Centres'
will build on ESA's Medspiration and GlobColour projects, which covered, respectively, sea-surface temperature and ocean
colour. Both are described in companion articles in this issue. The services will make full use of instruments aboard ESA's
Envisat. Their successors on the Sentinel-3 satellite series will ensure operational space oceanography services for the two
decades starting in 2012.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6181.pdf
Methylmercury bioconcentration in muscle tissue of the European eel (Anguilla anguilla) from the
Adour estuary (Bay of Biscay, France)
Provedor de dados: 5
Autores: Arleny, Ina; Tabouret, Helene; Rodriguez Gonzalez, Pablo Rodriguez; Bareille, Gilles; Donard, Olivier; Amouroux,
David.
The life history of the European Eel (Anguilla anguilla) begins in the Sargasso Sea in the Atlantic Ocean where the Leptocephalus
larvae drift with the gulf stream in order to reach European coastal waters. After their metamorphosis into transparent juveniles
"glass" eels and an acclimatising phase in the estuaries, they migrate upstream into the rivers to become yellow eels (sub-adult
stage). The yellow eels spend between 2 and 20 years of their lifetime in freshwater until they change into silver eels (adult stage)
and finally migrate back to the Atlantic Ocean for spawning (Gomez-Mourelo, 2005). A. anguilla is thus an organism able to
tolerate a wide range of environmental conditions, such as variations in oxygen availability, different ranges of...
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3072.pdf
Tentative d'utilisation des détergents anioniques comme traceurs de pollution fécale. Expériences
réalisées sur l'émissaire du Lez à Palavas
Provedor de dados: 5
Autores: Armangau, C.
The hydrogeological research and study centre of the Faculty of Sciences of Montpellier has been studying for a long time the
effects of surfactants, and especially of detergents, on rocks and soils permeability. The implemented techniques enabled us to go
beyond the framework of their research and to tackle problems for which the solution is linked to the detergent dosage. A
preliminary study was conducted in July 1967 on the Lez outflow in Palavas. It aimed to understand the possibility of specifying
the extension of residual waters in measuring out the detergents existing in this latter, and to see if, as described by PAOLETTI in
1966 (8), these detergents can be used as a chemical index of faecal pollution in surface waters.
Tipo: Text
Ano: 1967
URL: http://archimer.ifremer.fr/doc/1967/publication-3873.pdf
Une technique rapide de localisation des pollutions en eaux marines et saumâtres (le dosage continu
de l'oxygène dissous)
Provedor de dados: 5
Autores: Armangau, C; Caumette, A.
Tipo: Text
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-7013.pdf
Molecular characterization and transcriptional regulation of the Na+/K+ ATPase α subunit isoforms
during development and salinity challenge in a teleost fish, the Senegalese sole (Solea senegalensis)
Provedor de dados: 5
Autores: Armesto, Paula; Campinho, Marco A.; Rodríguez-rúa, Ana; Cousin, Xavier; Power, Deborah M.; Manchado, Manuel;
Infante, Carlos.
In the present work, five genes encoding different Na+,K+ ATPase (NKA) α-isoforms in the teleost Solea senegalensis are
described for the first time. Sequence analysis of predicted polypeptides revealed a high degree of conservation across teleosts and
mammals. Phylogenetic analysis clustered the five genes into three main clades: α1 (designated atp1a1a and atp1a1b), α2
(designated atp1a2) and α3 (designated atp1a3a and atp1a3b) isoforms. Transcriptional analysis in larvae showed distinct
expression profiles during development. In juvenile tissues, the atp1a1a gene was highly expressed in osmoregulatory organs,
atp1a2 in skeletal muscle, atp1a1b in brain and heart and atp1a3a and atp1a3b mainly in brain. Quantification of mRNA
abundance after a salinity...
Tipo: Text
Palavras-chave: Senegalese sole Na+; K+ ATPase atp1a1a atp1a1b atp1a2 atp1a3a atp1a3b osmoregulation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00195/30640/29093.pdf
Molecular and functional characterization of seven Na+/K+-ATPase β subunit paralogs in Senegalese
sole (Solea senegalensis Kaup, 1858)
Provedor de dados: 5
Autores: Armesto, Paula; Infante, Carlos; Cousin, Xavier; Ponce, Marian; Manchado, Manuel.
In the present work, seven genes encoding Na+,K+-ATPase (NKA) β-subunits in the teleost Solea senegalensis are described for
the first time. Sequence analysis of the predicted polypeptides revealed a high degree of conservation with those of other
vertebrate species and maintenance of important motifs involved in structure and function. Phylogenetic analysis clustered the
seven genes into four main clades: β1 (atp1b1a and atp1b1b), β2 (atp1b2a and atp1b2b), β3 (atp1b3a and atp1b3b) and β4
(atp1b4). In juveniles, all paralogous transcripts were detected in the nine tissues examined albeit with different expression
patterns. The most ubiquitous expressed gene was atp1b1a whereas atp1b1b was mainly detected in osmoregulatory organs (gill,
kidney and...
Tipo: Text
Palavras-chave: Senegalese sole Na+; K+-ATPase Beta subunit Paralogs Osmoregulation.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00240/35173/35782.pdf
The internal hydraulics of the strait of gibraltar and associated sills and narrows
Provedor de dados: 5
Autores: Armi, L; Farmer, D.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00112/22325/19998.pdf
Suivi des masses d'eaux cotières en Manche - Mer du Nord par flotteurs argos (Campagnes
FLOTANOR) - Evaluation du devenir potentiel des produits de dragages portuaires après immersion
en mer
Provedor de dados: 5
Autores: Arnal, Olivier.
Le Programme Régional Integré de l'Environnement Nord Pas de Calais (convention Région-IFREMER) a permis de dresser un
constat de la Qualite du milieu marin naturel (3), et préciser la nature et l'importance des apports à la mer. Des situations de
contaminations, se traduisant par des teneurs élevées de certains polluants dans les sédiments du littoral régional, ont été
identifiées et localisées. Ces secteurs sont les sites officiels prévus pour les rejets de produits de dragages portuaires, "au large", et
en bordure cotière près des ports et des estuaires. Les teneurs les plus élevées en polluants métalliques sont trouvées les secteurs
Boulogne - cap Gris Nez et Calais Dunkerque. L'emplacement de ces zones suggère que les rejets de dragages portuaires...
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00081/19218/16813.pdf
Vegetation Height Estimation Precision With Compact PolInSAR and Homogeneous Random Volume
Over Ground Model
Provedor de dados: 5
Autores: Arnaubec, Aurelien; Roueff, Antoine; Dubois-fernandez, Pascale C.; Refregier, Philippe.
Analyzing the precision of vegetation height estimation with compact (i.e., single transmit instead of dual transmit) polarimetric
interferometric synthetic aperture radar (PolInSAR) with the homogeneous random volume over ground model can help justify the
use of this type of radar rather than using the full PolInSAR. However, since compact PolInSAR provides less information than
full PolInSAR, a loss of precision in the vegetation height estimation is expected, which can depend on the single transmit
polarization. The adaptation of the Cramer-Rao bound (CRB) derived for full PolInSAR in our earlier work to compact PolInSAR
measurement provides a general methodology to characterize this loss of precision. Indeed, the CRB is a lower bound of the
variance of...
Tipo: Text
Palavras-chave: Compact polarimetry (CP); Cramer-Rao bound (CRB); Polarimetric SAR interferometry (PolInSAR); Random
volume over ground (RVoG) model.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00174/28551/26968.pdf
Suivi de quelques facteurs environnementaux dans les pertuis Charentais : de 1992 à 1994
Provedor de dados: 5
Autores: Arnaud, Christophe.
Un suivi des facteurs environnementaux a été réalisé dans les pertuis charentais, de 1993 à 1994. L'évolution de la température de
l'eau et de la salinité, ainsi que celle de la turbidité, sont étudiées. Au centre du Pertuis Breton, près des filières à moules, nous
n'avons pas constaté de stratification, et les variations de salinité ont été beaucoup moins importantes que dans les stations situées
plus près de la côte. Les concentrations en pigments chlorophylliens peuvent être très différentes au même moment dans deux
stations voisines; dans le Pertuis d'Antioche et aux filières, les valeurs de chlorophylle "a" sont comparables; elles sont beaucoup
plus élevées dans le Pertuis Breton. Parallèlement, une étude a été faite sur les facteurs...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00082/19282/16877.pdf
Etude du secteur de Marennes-Oléron (partie sud du bassin charentais) : suivi de la reproduction de
l'huître creuse Crassostrea gigas en 1999. Bilan de trois années d'observation de 1997 à 1999
Provedor de dados: 5
Autores: Arnaud, Christophe; Faury, Nicole; Bouquet, Jean-paul.
The Marennes-Oléron is a well known cupped oyster (Crassostrea gigas) and mussel (Mytilus edulis) reproduction area. Every
year, a monitoring of the reproduction of these two species is carried out on behalf of the Regional Shellfish Culture Section of
Marennes-Oléron. This monitoring aims to determine the periods of larval emission in order to let the professionals know about
the best collection times This study presents the main results obtained in 1999 and compares them with those obtained in 1997 and
1998. The year 1999 showed good results as far as larval emission and development are concerned in both oysters and mussels.
The comparison of the three consecutive years shows the disparity of larval evolutions.
Tipo: Text
Palavras-chave: Marennes Oléron; Captage; Larves; Mytilus edulis; Moules; Crassostrea gigas; Huîtres; Reproduction.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-6571.pdf
Suivi de la reproduction des huîtres - Saison 1998
Provedor de dados: 5
Autores: Arnaud, Christophe; Faury, Nicole; Bouquet, Jean-paul.
Le suivi de la reproduction des huîtres s'est déroulé du 22 juin au 3 septembre 1998. Six points du bassin de Marennes-Oléron sont
à nouveau concernés : En Charente: La Mouclière et Les Palles. Au centre du Bassin: Les Doux et Mérignac; En Seudre: Coux et
les Faulx. Cette opération est contractualisée avec la Section Régionale de Marennes-Oléron.
Tipo: Text
Palavras-chave: Reproduction; Larves; Huîtres; Crassostrea gigas; Bassin de Marennes Oléron.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00049/16067/13528.pdf
Suivi de la reproduction de l'huître creuse Crassostrea gigas et de la moule Mytilus edulis dans le
bassin de Marennes-Oléron. Bilan de trois années d'observation de 1997 à 2000.
Provedor de dados: 5
Autores: Arnaud, Christophe; Faury, Nicole; Bouquet, Jean-paul; Guesdon, Stephane.
Monitoring of reproduction in the oyster Crassostrea gigas, and more particularly in the mussel Mytilis edulis were conducted, in
the Marennes-Oléron Bay each year, from June to September. This report gives the main results obtained in 1997, 1998,
1999,2000 and compares the results between years. It also summarises the fishing techniques used and gives information on larval
development in the annexes. NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: Marennes Oléron; Larvae; Reproduction; Mussel; Oyster; Marennes Oléron; Larves; Reproduction; Moule;
Huître.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-3883.pdf
Suivi de la reproduction de l'huître creuse Crassostrea gigas et de la moule Mytilus edulis dans le
bassin de Marennes Oléron
Provedor de dados: 5
Autores: Arnaud, Christophe; Faury, Nicole; Bouquet, Jean-paul; Guesdon, Stephane; Kantin, Roger.
The monitoring of the reproduction of Crassostrea gigas, and more occasionally that of the mussel Mytilus edulis, is carried out in
the Marennes-Oléron Basin, each year, from June through to September. This report presents the main results obtained in 1997,
1998, 1999, 2000 and compares them. It also recalls the techniques used and provides, in appendix, some bibliographic
information on larval development.
Tipo: Text
Palavras-chave: Marennes Oléron; Captage; Larves; Reproduction; Mytilus edulis; Moules; Crassostrea gigas; Huîtres.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-6569.PDF
Suivi de la reproduction de l'huître creuse Crassostrea gigas dans la partie nord du bassin charentais
Provedor de dados: 5
Autores: Arnaud, Christophe; Fillon, Alain.
The Charente-Maritime coast has, on its northern part, between the Charente estuary and the northern boundary of the department
(Isle of Ré included), many sites which interest the oyster culture industry, especially as far as juvenile collection is concerned.
The well-known centre of Fouras is one of them. To help the professionals, and for its own purposes, the Ifremer studies the
periods of emission of cupped oyster larvae in order to let the oyster farmers know about the best collection times. Contractualized
for the first time in 1996 between the SRC FIE-Centre Ouest and the Ifremer, this work has been carried out again in 1997 by the
DEL coastal laboratory of La Rochelle, following the renewal of this contract. This report presents the different...
Tipo: Text
Palavras-chave: Captage; Marennes Oléron; Crassostrea gigas; Larves; Reproduction.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/rapport-6568.PDF
Etude du Secteur de Fouras (Partie Nord du Bassin Charentais) : Suivi de la reproduction de l'huître
creuse Crassostrea gigas en 1998 - Bilan de dix années d'observation de 1989 à 1998
Provedor de dados: 5
Autores: Arnaud, Christophe; Fillon, Alain.
Le littoral charentais-maritime présente, dans sa partie nord entre l'estuaire de la Charente et la limite nord du département (île de
Ré comprise), plusieurs sites intéressant l'ostréiculture pour le captage de juvéniles, dont le centre réputé de Fouras. Pour aider la
profession, et selon son souhait, une assistance est fournie par l'IFREMER qui recherche les périodes d'émission de larves
d'huîtres creuses afin d'informer les ostréiculteurs des époques les plus propices au captage. Contractualisé pour la première fois
en 1996, puis en 1997, entre la SRC RE-CENTRE-QUEST et l'IFREMER, ce travail a été effectué à nouveau en 1998, par le
laboratoire côtier DEL de La Rochelle et par la SRC, suite au renouvellement de ce contrat. La nouveauté de cette année est...
Tipo: Text
Palavras-chave: Reproduction; Naissain; Huître creuse; Crassostrea gigas; Fouras; Charente-Maritime.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00074/18492/16035.pdf
Suivi de la reproduction de l'huître creuse Crassostrea gigas dans la partie Nord du bassin charentais
- Année 1997
Provedor de dados: 5
Autores: Arnaud, Christophe; Fillon, Alain.
Le littoral charentais-maritime présente, dans sa partie nord entre l'estuaire de la Charente et la limite nord du département (île de
Ré comprise), plusieurs sites intéressant l'ostréiculture pour le captage de juvéniles, dont le centre réputé de Fouras. Pour aider la
profession, et selon son souhait, une assistance est fournie par l' IFREMER qui recherche les périodes d'émission de larves
d'huîtres creuses afin d'informer les ostréiculteurs des époques les plus propices au captage. Contractualisé pour la première fois
en 1996 entre la SRC RE-CENTRE OUEST et l' IFREMER, ce travail a été effectué à nouveau en 1997 par le laboratoire côtier
DEL de La Rochelle, suite au renouvellement de ce contrat. Le présent rapport expose les différents aspects de ce...
Tipo: Text
Palavras-chave: Reproduction; Larves; Crassostrea gigas; Charente Maritime.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00049/16068/13529.pdf
Lake Bourget regional erosion patterns reconstruction reveals Holocene NW European Alps soil
evolution and paleohydrology
Provedor de dados: 5
Autores: Arnaud, Fabien; Revillon, Sidonie; Debret, Maxime; Revel, Marie; Chapron, Emmanuel; Jacob, Jeremy; Giguet-covex,
Charline; Poulenard, Jerome; Magny, Michel.
Two well-dated ca Holocene-long sedimentary sequences from deepest parts of Lake Bourget provide new insights onto the
evolution of erosion patterns at a regional scale in NW European Alps. The combination of high resolution geochemistry - XRF
core scanning, calibrated by 150 punctual measurements - and isotope geochemistry (epsilon Nd) of the terrigenous fraction
permitted the reconstruction not only of the intensity, but also the type (physical erosion vs. chemical weathering) and the location
(Prealpine massifs vs. High Crystalline massifs) of dominant erosion processes. Those data point the persistency of weak erosion
fluxes from 9600 to 5500 cal. BP due both to a dry climate and the growing sheltering effect of soils that rapidly progressed
between...
Tipo: Text
Palavras-chave: Holocene; Alps; Erosion; Soil dynamics; Paleohydrology.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00106/21723/20064.pdf
Analysis of the moisture effect on the mechanical behaviour of an adhesively bonded joint under
proportional multi-axial loads
Provedor de dados: 5
Autores: Arnaud, N.; Creac'Hcadec, R.; Cognard, J. Y.; Davies, Peter; Le Gac, Pierre-yves.
The objective of the study is to identify the 3D behaviour of an adhesive in an assembly, and to take into account the effect of
ageing in a marine environment. To that end, three different tests were employed. Gravimetric analyses were used to determine
the water diffusion kinetics in the adhesive. Bulk tensile tests were performed to highlight the effects of humid ageing on the
adhesive behaviour. Modified Arcan tests were performed for several ageing times to obtain the experimental database which was
necessary to identify constitutive models. A Mahnken-Schlimmer type model was determined for the unaged state according to a
procedure developed in a previous study. This identification used inverse techniques. It was based on the unaged modified
Arcan...
Tipo: Text
Palavras-chave: Water resistance; Arcan test; Ageing; Epoxides; Finite-element stress analysis; Durability.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00277/38788/37557.pdf
Premières observations sur la croissance des moules (Mytilus galloprovincialis Lmk) dans l'étang du
Prévost
Provedor de dados: 5
Autores: Arnaud, P; Hamon, Pierre-yves.
From 1972, oysters and mussels culture was introduced into a little lagoon of Languedoc, the lake of the Prévost. The principal
geographic and hydrologic features of this lake are laid out . Then, the mussels growing (Mytilus galloprovincialis) from June
1973 to April 1974 is described.
Tipo: Text
Ano: 1974
URL: http://archimer.ifremer.fr/doc/00344/45549/45164.pdf
Les salinités de l'étang de Salses-Leucate et le régime des eaux souterraines
Provedor de dados: 5
Autores: Arnaud, Pierre.
In 1955 and during the first semester of 1956, and then from the first semester of 1960 to the end of 1965, 7 complete years all
together, a number of analysis were conducted on the salinities of the Salses-Leucate pond At each time of sampling, samples
were taken from 19 different spots in the pond (fig. 1); these spots are spread out enough for the means used in this study to be
considered as representative of the whole pond. Concerning the sampling frequency, the original idea of one field trip per month
has not been respected, and over the seven years, an average of nine field trips per month was conducted. Salinities are in grams
per kilogram of water and are determined by the Mohr-Knudsen method. The salinity means established on this basis and...
Tipo: Text
Ano: 1968
URL: http://archimer.ifremer.fr/doc/1968/publication-3758.pdf
Note préliminaire sur la palourde (tapes decussatus L.) de l'étang de Thau
Provedor de dados: 5
Autores: Arnaud, Pierre; Raimbault, René.
Tapes decussates (Linnaeus), due to its economic value, is heavily fished in the Thau Lagoon. There are two types of fishing
practices.First, "sight" fishing, the most common and highest paying practise is also the most selective.The fisher is equipped with
a light flat-bottomed boat "néga fol" and lies at one of the ends with his face just on the surface of the water. To avoid backwash
or small waves that would reduce visibility, the fisher uses an observation chamber: a cylindrical tube fitted with transparent glass
at one end and the whole device is fastened around the neck with an elastic band. In his right hand, he holds a trident with long
tines to dig into the sand; using a small circular net held in his left hand, he can harvest clams without even...
Tipo: Text
Ano: 1963
URL: http://archimer.ifremer.fr/doc/1963/publication-4129.pdf
L'etang de Salses-Leucate ses principaux caracteres physico-chimiques et leurs variations (en
1955-1956 et de 1960 à 1968)
Provedor de dados: 5
Autores: Arnaud, Pierre; Raimbault, René.
In presenting the activities of the Scientific and Technical Institute of Marine Fisheries (ISTPM), J. Furnestin, its director, recalled
that according to law, the Institute's mission consists of carrying out "any research or study in marine science that directly or
indirectly concerns marine fisheries and related fishing industries". Commenting on this definition, he insisted on the fact that
marine organisms completely depend on their environment and its variations; "understanding the marine environment", he
concluded, "is the basis of all research carried out at the Institute" (Furnestin, 1964a). In another publication, on "Scientific
Fisheries", the director of ISTPM noted that there was no fundamental difference between fisheries oceanography and...
Tipo: Text
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-3184.pdf
Gestion des ressources génétiques de l'huître perlière Pinctada margaritifera de Polynésie française :
caractérisation génétique des populations et optimisation du recrutement pour l'exploitation perlière
Provedor de dados: 5
Autores: Arnaud, Sophie; Goyard, Emmanuel; Prou, Jean; Vonau, Vincent; Bonhomme, Francois; Boudry, Pierre.
Exploitation of the pearl oyster Pinetada margaritifera, which has developed in French Polynesia over the last twenty years, is
based mainly on the collection of natural spat. Recruitment is highly variable in space and time and so spat is very often
transferred by the farmers between atolls or even between archipelagos. In previous studies, anonymous nuclear markers
demonstrated that This development has coincided with a genetic homogenisation of the wild stocks since the 1980s. This
suggests a high level of reproductive success on farms, which is likely to be due to the high density of animaIs when compared to
the density in the wild. We used the same markers to show that the level of genetic variability observed on farms is not
significantly different...
Tipo: Text
Palavras-chave: French Polynesia; Genetic diversity; Spat; Pinctada margaritifera; Pearl oyster; Polynésie française; Diversité
génétique; Naissain; Pinctada margaritifera; Huître perlière.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3822.PDF
Pearl formation: Persistence of the graft during the entire process of biomineralization
Provedor de dados: 5
Autores: Arnaud, Sophie; Goyard, Emmanuel; Vonau, Vincent; Herbaut, C; Prou, Jean; Saulnier, Denis.
Most bivalves species of the genus Pinctada are well known throughout the world for production of white or black pearls of high
commercial value. For cultured pearl production, a mantle allograft from a donor is implanted into the gonad of a recipient oyster,
together with a small inorganic bead. Because of the dedifferentiation of cells during the first steps of the host oyster's
immunological reaction, so far the fate of the graft and its exact role in the process of pearl formation could not be determined via
classical histological methods. Here we report the first molecular evidence of the resilience of the graft in the recipient organism
by showing that cells containing genome from the donor are still present at the end of pearl formation. These...
Tipo: Text
Palavras-chave: Genotype; Pearl; Pearl sac; Grafting; Biomineralization; Pearl oyster.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2456.pdf
Genetic structure at different spatial scales in the pearl oyster (Pinctada margaritifera cumingii) in
French Polynesian lagoons: beware of sampling strategy and genetic patchiness
Provedor de dados: 5
Autores: Arnaud, Sophie; Vonau, Vincent; Rouxel, Catherine; Bonhomme, Francois; Prou, Jean; Goyard, Emmanuel; Boudry,
Pierre.
In order to study further the genetic structure of the pearl oyster Pinctada margaritifera in French Polynesia with a special
consideration for the sampling scale, we analyzed or re-analyzed sets of data based on nuclear DNA markers obtained at different
spatial scales. At a large scale (several 1,000 km), the remote Marquesas Islands were confirmed to be significantly differentiated
from Tuamotu-Gambier and Society archipelagos, with a marked difference however for the two main islands that are different
from each other. At a medium scale (several 10 to several 100 km), overall homogeneity was observed within and between these
two archipelagos, with some exceptions. This could be attributed both to large-scale larval dispersal and to human-driven spat...
Tipo: Text
Palavras-chave: Population genetics; Polynesia; Bivalve; Pearl oyster; Benthic organisms; Sampling strategy; Genetic
patchiness.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4960.pdf
Microsatellite markers developed through pyrosequencing allow clonal discrimination in the invasive
alga Caulerpa taxifolia
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Candeias, Rui; Serrao, Ester A.; Teixeira, Sara.
Polymorphic microsatellites were developed for the invasive green algae Caulerpa taxifolia using next generation DNA
sequencing. Results showed a limited rate of microsatellites for the amount of sequences, possibly explaining failure of previous
attempts for microsatellite development through classical methods. Eight polymorphic loci were selected that exhibited
polymorphism and a null or negligible rate of amplification failure. The number of alleles per locus ranged from two to seven. The
reconstruction of Multi Locus Genotypes and the heterozygosity and departure from Hardy-Weinberg equilibrium confirmed the
influence of clonal reproduction and showed the usefulness of this set of markers to successfully discriminate clonal lineages and
analyze the...
Tipo: Text
Palavras-chave: Caulerpa taxifolia; Algae; Invasion; Mediterranean; Queensland; New South Wales; Seagrass.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00126/23720/21598.pdf
Implications of Extreme Life Span in Clonal Organisms: Millenary Clones in Meadows of the
Threatened Seagrass Posidonia oceanica
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Duarte, Carlos M.; Diaz-almela, Elena; Marba, Nuria; Sintes, Tomas; Serrao, Ester A.
The maximum size and age that clonal organisms can reach remains poorly known, although we do know that the largest natural
clones can extend over hundreds or thousands of metres and potentially live for centuries. We made a review of findings to date,
which reveal that the maximum clone age and size estimates reported in the literature are typically limited by the scale of
sampling, and may grossly underestimate the maximum age and size of clonal organisms. A case study presented here shows the
occurrence of clones of slow-growing marine angiosperm Posidonia oceanica at spatial scales ranging from metres to hundreds of
kilometres, using microsatellites on 1544 sampling units from a total of 40 locations across the Mediterranean Sea. This analysis
revealed...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00076/18710/16283.pdf
Genetic recolonization of mangrove: genetic diversity still increasing in the Mekong Delta 30 years
after Agent Orange
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Duarte, Carlos M.; Teixeira, Sara; Massa, Sonia Isabel; Terrados, Jorge; Nguyen Hong, Tri;
Phan Nguyen, Hong; Serrao, Ester A.
The widespread use of Agent Orange (a mixture of phenoxyl herbicides) over Southern Vietnam by US Forces led to the
decimation of mangrove forests in the Mekong Delta. Mangrove trees Avicennia alba were sampled across the Mekong Delta;
their age was assessed using models based on internode growth and samples were genotyped for 6 microsatellite loci. The
evolution of genetic diversity over time elapsed since local extinction was reconstructed and compared with the genetic diversity
of an unaffected population from Thailand, The results show that genetic diversity of the A. alba population is still increasing in
the Mekong Delta 3 decades after the end of the Vietnam War, but is reaching an asymptotic level that is comparable to the
adjacent non-affected...
Tipo: Text
Palavras-chave: Agent Orange; Deforestation; Mangrove; Local extinction; Demographic recovery; Genetic recovery;
Recolonization genetics.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6898.pdf
Comparative Analysis of Stability-Genetic Diversity in Seagrass (Posidonia oceanica) Meadows Yields
Unexpected Results
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Marba, Nuria; Diaz-almela, Elena; Serrao, Ester A.; Duarte, Carlos M.
The diversity-stability relationship is the subject of a long-standing debate in ecology, but the genetic component of diversity has
seldom been explored. In this study, we analyzed the interplay between genetic diversity and demographic responses to
environmental pressures. This analysis included 30 meadows formed by the Mediterranean endemic seagrass, Posidonia oceanica,
showing a wide range of population dynamics ranging from a near equilibrium state to steep decline due to strong environmental
pressures close to aquaculture installations. Our results show that sedimentation rates are much better predictors of mortality than
clonal or genetic components. An unexpected positive trend was observed between genotypic diversity and mortality, along with
a...
Tipo: Text
Palavras-chave: Seagrass; Demography; Clonality; Genetic richness; Diversity-stability; Posidonia oceanica.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00006/11693/8498.pdf
Discriminating Micropathogen Lineages and Their Reticulate Evolution through Graph
Theory-Based Network Analysis: The Case of Trypanosoma cruzi, the Agent of Chagas Disease
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Moalic, Yann; Barnabe, Christian; Ayala, Francisco Jose; Tibayrenc, Michel.
Micropathogens (viruses, bacteria, fungi, parasitic protozoa) share a common trait, which is partial clonality, with wide variance
in the respective influence of clonality and sexual recombination on the dynamics and evolution of taxa. The discrimination of
distinct lineages and the reconstruction of their phylogenetic history are key information to infer their biomedical properties.
However, the phylogenetic picture is often clouded by occasional events of recombination across divergent lineages, limiting the
relevance of classical phylogenetic analysis and dichotomic trees. We have applied a network analysis based on graph theory to
illustrate the relationships among genotypes of Trypanosoma cruzi, the parasitic protozoan responsible for Chagas disease,...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00212/32374/30837.pdf
Disentangling the Influence of Mutation and Migration in Clonal Seagrasses Using the Genetic
Diversity Spectrum for Microsatellites
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Moalic, Yann; Hernandez-garcia, Emilio; Eguiluz, Victor M.; Alberto, Filipe; Serrao, Ester A.;
Duarte, Carlos M.
The recurrent lack of isolation by distance reported at regional scale in seagrass species was recently suggested to stem from
stochastic events of large-scale dispersal. We explored the usefulness of phylogenetic information contained in microsatellite loci
to test this hypothesis by using the Genetic Diversity Spectrum (GDS) on databases containing, respectively, 7 and 9
microsatellites genotypes for 1541 sampling units of Posidonia oceanica and 1647 of Cymodocea nodosa. The simultaneous
increase of microsatellite and geographic distances that emerges reveals a coherent pattern of isolation by distance in contrast to
the chaotic pattern previously described using allele frequencies, in particular, for the long-lived P. oceanica. These results
suggest...
Tipo: Text
Palavras-chave: Clonality; Genetic Diversity Spectrum; Genetic divergence; Microsatellites; Seagrass; Stepwise mutation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00182/29292/27733.pdf
Two “pillars” of cold-water coral reefs along Atlantic European margins: Prevalent association of
Madrepora oculata with Lophelia pertusa, from reef to colony scale
Provedor de dados: 5
Autores: Arnaud-haond, Sophie; Van Den Beld, Inge; Becheler, Ronan; Orejas, C.; Menot, Lenaick; Frank, N.; Grehan, A.;
Bourillet, Jean-francois.
The scleractinian coral Lophelia pertusa has been the focus of deep-sea research since the recognition of the vast extent of coral
reefs in North Atlantic waters two decades ago, long after their existence was mentioned by fishermen. These reefs where shown
to provide habitat, concentrate biomass and act as feeding or nursery grounds for many species, including those targeted by
commercial fisheries. Thus, the attention given to this cold-water coral (CWC) species from researchers and the wider public has
increased. Consequently, new research programs triggered research to determine the full extent of the corals geographic
distribution and ecological dynamics of “Lophelia reefs”. The present study is based on a systematic standardised sampling design
to...
Tipo: Text
Palavras-chave: Lophelia pertusa; Madrepora oculata; False-chimaera colonies; Cold water corals (CWC); Bay of Biscay;
Ireland; Iceland.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38530/37048.pdf
Altimetry and models in the tropical oceans - a review
Provedor de dados: 5
Autores: Arnault, S; Perigaud, C.
Tropical oceans play a key role in climatic variations. Ocean-atmosphere interactions induce large-scale and low-frequency
variations which, due to the specificity of tropical ocean dynamics, are very difficult to observe with traditional in situ
measurements. During the past twenty years, a variety of numerical models of diverse complexity have contributed much to the
description, understanding and prediction of ocean variability in the tropics. However, the capacity of these models to simulate
adequately the ocean variability heavily depends on the accuracy of the atmospheric forcings and that of initial conditions.
Satellite altimetry provides a unique opportunity to avoid the problem of scarce and non-synoptic in situ data coverage for the
large-scale...
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00100/21174/18791.pdf
Résultats contrôlés du rendement du filet tournant dans la région de Saint-Jean-de Luz
Provedor de dados: 5
Autores: Arne, P.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1932
URL: http://archimer.ifremer.fr/doc/1932/publication-5830.pdf
Contribution à l'étude de l'anchois : (engraulis encrassicholus.L) du Golfe de Gascogne
Provedor de dados: 5
Autores: Arne, Paul.
The anchovy seems to cruise around the Bay of Biscay with less regularity than the sardine. Sometimes abounding, it is rare, or at
least adults do not cruise at the surface, some years. It results in some important variations in the catches with, for example in
Saint-Jean-de-Luz, 736 570 kg caught in 1928 and less than 150 000 kg in 1929 and 1930. However, despite some poor years, the
anchovy accounts for an important part of the fisheries statistics of the Bayonne area. In Saint-Jean-de-Luz, many boat owners and
industrialists organized themselves to transform it on the spot after selling it fresh for many years to the Mediterranean retailers,
and their products can now compete with those from harbours with a tradition of anchovy preparation....
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1931
URL: http://archimer.ifremer.fr/doc/1931/publication-5881.pdf
La pêche de la sardine dans la région de Saint-Jean-de-Luz en 1928
Provedor de dados: 5
Autores: Arne, Paul.
These statistics show that the very poor catches of the end of 1927 continued until May 1928, although less campaigns are to be
counted compared with last year's: 1 811 against 2 647. One might also notice that the small amount of sardines caught in April
1928 was counterbalanced by the catch, over the same period, of 886 735 kilos of anchovies, 10 445 kilos of mackerel and 24 030
kilos of tuna. In April, many boats stopped fishing sardine and switched to other fishes. When compared with the results of the
previous years, it appears that the fisheries of June 1928 are exceptional for this season.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1929
URL: http://archimer.ifremer.fr/doc/1929/publication-5807.pdf
Note sur la pêche à la sardine sans rogue
Provedor de dados: 5
Autores: Arne, Paul.
The lack of salted cod-roe and peanut oil meal caused by WWII and the fact that other baits have not been able to replace it, is on
the verge of putting an end to sardine fishing on the French coasts when the last barrels imported from Norway will come to their
end. This situation preoccupies the Secretary of State for Marine and Colonies who has just ordered a study in order to find out if
the problem could not be solved by copying Spain and Portugal where sardine has been fished without salted cod-roe for a long
time already. Given the interest of the question, we are going to provide all the information we have gathered on these fishing
methods through our trips on the Portuguese coast and our frequent contacts with French and Spanish Basque fishermen...
Tipo: Text
Ano: 1943
URL: http://archimer.ifremer.fr/doc/1943/publication-3390.pdf
La pêche de la sardine dans la région de Saint-Jean-de-Luz en 1927
Provedor de dados: 5
Autores: Arne, Paul.
The results of sardine fishing in the harbour of Saint-Jean-de-Luz have been less important in 1927 than the previous year; as
shown by the statistics tallying up the amount of sardines caught (in thousands), each month, over the two years. In 1927, this
fishery is negative for each month, except March, but the differences are greater in the months of November and December.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1928
URL: http://archimer.ifremer.fr/doc/1928/publication-5696.pdf
Status of red drum culture in the USA
Provedor de dados: 5
Autores: Arnold, C.
An overview of the methods of producing red drum are discussed. Although red drum culture is new compared to the culture of
other species there is much interest in the production both in earthen ponds and in recirculating intensive systems. Various
strategies for both methods will be discussed. This includes stocking rates, optimum growth, temperature, salinity and growth
rates of red drum (Sciaenops ocellatus).
Tipo: Text
Palavras-chave: Salinity tolerance; Temperature effects; Growth.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1480.pdf
Marine larval fish rearing
Provedor de dados: 5
Autores: Arnold, C.
Various methods of producing juvenile finfish will be discussed. This includes the intensive production in controlled
environments as well as extensive pond production. Factors important to survival such as temperature, salinity, pH, water quality,
bacteria and parasites, density, food types and food density as well as information on food and food production will be given.
Tipo: Text
Palavras-chave: Fish culture; Aquaculture development; Aquaculture techniques; Rearing.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1445.pdf
Développement d'un programme régional intégré sur le Golfe de Fos et l'Etang de Berre : Etang de
Berre Etude des apports limniques
Provedor de dados: 5
Autores: Arnoux,, A.; Gachelin,, S.; Mori, J.p.; Philippe-loeillet, S.; Poulaillon, F.; Romana,, L.a.
Ce rapport présente les résultats obtenus lors d'un programme d'études destinées à évaluer les apports liquides, solides et polluants
introduits dans l'étang de Berre, du fait du réseau hydrographique local.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00082/19307/16901.pdf
Modeling 3D Rhone river plume using a higher order advection scheme
Provedor de dados: 5
Autores: Arnoux-chiavassa, S; Rey, V; Fraunie, P.
Effects of discretization scheme on the numerical modeling of 3D Rhone River plume dynamics are investigated. A higher order
scheme of total variation diminishing (TVD) type is used to discretize advection terms of both momentum and scalar equations. It
is shown that this scheme widely damps the numerical diffusion and improves the representation of the dynamical and density
fronts bounding the flow. It enables to accurately investigate the effects of the turbulent diffusion, which was previously masked
by the numerical one. Numerical results are also compared to in situ data for two situations related to different wind conditions.
For the case without wind stress, associated to supercritical values of the Richardson number, optimized turbulent...
Tipo: Text
Palavras-chave: Océanographie côtière; Modèle numérique 3D; Panache fluvial; Écoulements stratifiés; Schémas variation totale
décroissante; Coastal oceanography; 3D numerical model; River plume; Stratified flows; Total variation diminishing schemes.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00321/43259/42990.pdf
Constraints on the shallow velocity structure of the Lucky Strike Volcano, Mid-Atlantic Ridge, from
downward continued multichannel streamer data
Provedor de dados: 5
Autores: Arnulf, A. F.; Harding, A. J.; Kent, G. M.; Singh, Shubpreet; Crawford, W. C.
The shallow velocity structure of the Lucky Strike segment of the Mid-Atlantic Ridge is investigated using seismic refraction and
reflection techniques applied to downward continued multichannel streamer data. We present a three-dimensional velocity model
beneath the Lucky Strike Volcano with unprecedented spatial resolutions of a few hundred meters. These new constraints reveal
large lateral variations in P wave velocity structure beneath this feature. Throughout the study area, uppermost crustal velocities
are significantly lower than those inferred from lower resolution ocean bottom seismometer studies, with the lowest values
(1.8–2.2 km/s) found beneath the three central volcanic cones. Within the central volcano, distinct shallow units are mapped that...
Tipo: Text
Palavras-chave: Mid-Atlantic Ridge; Lucky Strike; Seismic refraction; Tomography; Oceanic crust; Downward continuation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00185/29598/27965.pdf
Preliminary results on automated video-imaging for the study of behavioural rhythms of tubeworms
from the tempo-mini ecological module (Neptune, Canada)
Provedor de dados: 5
Autores: Aron, M.; Cuvelier, D.; Aguzzi, J.; Costa, C.; Doya, C.; Sarrazin, Jozee; Sarradin, Pierre-marie.
The presence of behavioural rhythms has been studied in organisms of coastal areas in relation to circadian and tidal cycles, but
their presence in benthic fauna inhabiting dark deep-sea regions remains largely unknown. Cabled video-observatories allow the
study of these activity rhythms via the acquisition of pictures or footages over extended periods of time. In this work, we present
the preliminary steps in the automation of biological data extraction for the determination of deep-sea fauna activity rhythms with
TEMPO-mini (NEPTUNE; Canada). Automated analyses of tube worm behaviour were carried out with the Hough transform
algorithm. Some different testing parameters were applied to the same image with siboglinid tubes. Tube openings
identifications...
Tipo: Text
Palavras-chave: Cabled observatories; TEMPO-mini; NEPTUNE; Time lapse photograpHY; Automated video imaging; Tube
worms rhythms.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00287/39835/38360.pdf
Quelles recherches et quels partenariats pour la Méditerranée ?
Provedor de dados: 5
Autores: ARP-PARME.
The Mediterranean world is an extremely historically and culturally diversified biogeographical region. This area is also
especially sensitive to global change—economic globalization, demographic transition, standardization of lifestyles and
behaviours, the advent of the age of information, communication, transportation and climate change. A key challenge for the
future of this region is the development of a Euro-Mediterranean area that is tightly integrated both economically and politically.
The research community is naturally called upon to help in addressing this major challenge. The aim of ARP-PARME (Atelier de
Réflexion Prospective–Partenariats et Recherche en MEditerranée), a forward-thinking workshop on partnerships and research
and partnerships in...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00187/29785/28241.pdf
What lies underneath: Conserving the oceans' genetic resources
Provedor de dados: 5
Autores: Arrieta, Jesus M.; Arnaud, Sophie; Duarte, Carlos M.
The marine realm represents 70% of the surface of the biosphere and contains a rich variety of organisms, including more than 34
of the 36 living phyla, some of which are only found in the oceans. The number of marine species used by humans is growing at
unprecedented rates, including the rapid domestication of marine species for aquaculture and the discovery of natural products and
genes of medical and biotechnological interest in marine biota. The rapid growth in the human appropriation of marine genetic
resources (MGRs), with over 18,000 natural products and 4,900 patents associated with genes of marine organisms, with the latter
growing at 12% per year, demonstrates that the use of MGRs is no longer a vision but a growing source of biotechnological and...
Tipo: Text
Palavras-chave: Marine protected areas; Marine reserves; Natural products; Gene patents; Law of the sea.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00018/12897/9935.pdf
L'anchois (engraulis encrasicholus l.) des cotes d'Oranie
Provedor de dados: 5
Autores: Arrignon, Jacques.
Engraulis encrasicholus L. is a species that is captured all year long off the coasts of Algeria. The studied specimens measured
from 8 to 19 cm. The average total length is 14 cm. Throughout the year, the average monthly size does not vary (12.6 to 14.7 cm
for the entire species, 12.4 to 15.6 cm for bottom anchovies; the difference is greater for surface anchovies: 9 to 15 cm). During
summer, the average is the highest and the most constant. Sizes have different modes during winter and spring. Average lengths
are greater than those of the Atlantic specimens. This can be explained by the fact that the continental margin is narrower in the
Mediterranean Sea, so that anchovies can find trophic areas closer to the shore (J. FURNESTlN, 1950)....
Tipo: Text
Ano: 1966
URL: http://archimer.ifremer.fr/doc/1966/publication-3973.pdf
Global habitat preferences of commercially valuable tuna
Provedor de dados: 5
Autores: Arrizabalaga, Haritz; Dufour, Florence; Kell, Laurence; Merino, Gorka; Ibaibarriaga, Leire; Chust, Guillem; Irigoien,
Xabier; Santiago, Jose Luis; Murua, Hilario; Fraile, Igaratza; Chifflet, Marina; Goikoetxea, Nerea; Sagarminaga, Yolanda;
Aumont, Olivier; Bopp, Laurent; Herrera, Miguel; Fromentin, Jean-marc; Bonhomeau, Sylvain.
In spite of its pivotal role in future implementations of the Ecosystem Approach to Fisheries Management, current knowledge
about tuna habitat preferences remains fragmented and heterogeneous, because it relies mainly on regional or local studies that
have used a variety of approaches making them difficult to combine. Therefore in this study we analyse data from six tuna species
in the Pacific, Atlantic and Indian Oceans in order to provide a global, comparative perspective of habitat preferences. These data
are longline catch per unit effort from 1958 to2007 for albacore, Atlantic bluefin, southern bluefin, bigeye, yellowfin and skipjack
tunas. Both quotient analysis and Generalized Additive Models were used to determine habitat preference with respect to...
Tipo: Text
Palavras-chave: Habitat; Tuna fisheries; Catch/effort; Environmental conditions; Quotient analysis; Generalised Additive
Models; Ecosystem Approach to Fisheries Management.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00201/31190/29589.pdf
Analysis of the potential impact of several management measures for eastern Atlantic bluefin tuna on
the basis of yield per recruit
Provedor de dados: 5
Autores: Arrizabalaga, Haritz; Restrepo, Victor; Fromentin, Jean-marc; Ortiz De Urbina, J M.
A standard yield per recruit (YPR) analysis is used to analyse the effects of minimum size regulations and time area closures on
bluefin tuna from the eastern stock (east Atlantic and Mediterranean). Analyses were based on a fishing mortality vector
computed over the period 1990-1994 for which data were more reliable and VPA (performed during the 2002 stock assessment)
showed a relatively good convergence. This fishing mortality vector was modified according to some combinations of minimum
size regulations and time area closures. It is concluded that: (i) PSmed is the main contributor to catch at age in the range of ages
1-13; (ii) The minimum size regulations considered would increase the YPR more than the time area closures, but these would
enhance SPR...
Tipo: Text
Palavras-chave: Yield/recruit; Yield predictions; Size limit regulations; Time-area closures; Bluefin tuna.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00192/30329/28806.pdf
Abundance, diversity, and community structure of the fish population in the ria de aveiro (portugal)
Provedor de dados: 5
Autores: Arruda, Lm; Andrade, Jp; Cunha, Mm.
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00107/21863/19454.pdf
Modélisation du cycle océanique du néodyme
Provedor de dados: 5
Autores: Arsouze, Thomas.
Neodymium isotopic composition (Nd IC, currently noted as ENd) is a tracer of oceanic circulation and lithogenic inputs to the
ocean. The current work aims to validate the "Boundary Exchange" hypothesis(BE, Bundary Scavenging associated with
important inputs along the continental margin) as the main source/sink term of Nd to the oceanic reservoir, using an oceanic
global circulation model. First, considering the only BE term for Nd IC sources/sinks, we successfully simulated the main
distribution's characteristics (inter basin gradient, isotopic signature of the main water masses) both at global and regional scale.
This result confirms BE as an important process in the element's oceanic cycle. The same parameterization of BE has been used at
Last Glacial...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-7348.pdf
Modeling the Nd isotopic composition in the North Atlantic basin using an eddy-permitting model
Provedor de dados: 5
Autores: Arsouze, Thomas; Treguier, Anne-marie; Peronne, Simon; Dutay, J. -c.; Lacan, F.; Jeandel, C.
Boundary Exchange (BE - exchange of elements between continental margins and the open ocean) has been emphasized as a key
process in the oceanic cycle of neodymium (Nd) (Lacan and Jeandel, 2005a). Here, we use a regional eddy-permitting resolution
Ocean General Circulation Model (1/4A degrees) of the North Atlantic basin to simulate the distribution of the Nd isotopic
composition, considering BE as the only source. Results show good agreement with the data, confirming previous results obtained
using the same parameterization of the source in a coarse resolution global model (Arsouze et al., 2007), and therefore the major
control played by the BE processes in the Nd cycle on the regional scale. We quantified the exchange rate of the BE, and found
that the...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00013/12412/9201.pdf
On the dense water in the adriatic sea
Provedor de dados: 5
Autores: Artegiani, A; Azzolini, R; Salusti, E.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00131/24226/22219.pdf
Field observations of the flow of dense water on the bottom of the adriatic sea during the winter of
1981
Provedor de dados: 5
Autores: Artegiani, A; Salusti, E.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00108/21891/19482.pdf
Ontogenetic dietary and habitat shifts in goliath grouper Epinephelus itajara from French Guiana
Provedor de dados: 5
Autores: Artero, C.; Koenig, C. C.; Richard, P.; Berzins, R.; Guillou, G.; Bouchon, C.; Lampert, Luis.
The ecology, particularly the trophic ecology, of the Critically Endangered goliath grouper Epinephelus itajara (Lichtenstein
1822) in French Guiana (France) is relatively unknown. Such information would provide a better understanding of the role that
goliath groupers play in the marine ecosystem of French Guiana. This study focused on the feeding ecology of the goliath grouper
through stomach-content and stable-isotope analyses of captured specimens. The dietary composition of goliath groupers in
French Guiana was similar to that of goliath groupers from other areas of the species' range. However, in French Guiana, goliath
groupers exhibited an ontogenetic shift in diet that has not been demonstrated elsewhere. Crustaceans, primarily crabs, were
dominant...
Tipo: Text
Palavras-chave: Epinephelidae; Critically Endangered species; Stomach contents; Carbon and nitrogen stable isotopes; Dietary
shift; Migration; Mangroves · Diet.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00270/38151/36276.pdf
Age, growth, and mortality of the Atlantic goliath grouper Epinephelus itajara in French Guiana
Provedor de dados: 5
Autores: Artero, C.; Murie, D. J.; Koenig, C. C.; Berzins, R.; Bouchon, C.; Lampert, Luis.
The age and growth of the Critically Endangered Atlantic goliath grouper Epinephelus itajara of equatorial French Guiana was
determined by a non-lethal aging method using dorsal fin rays. Goliath grouper deposit 1 complete annulus per year, with the
translucent zone of the annulus laid down at the beginning of the dry season (July). Two readers independently applied the
method; there was full agreement between the two for 52% of the fish, and agreement of +/- 1 yr for 82%. Comparison of ages
derived from paired samples of otoliths and fin rays were identical (n = 6). The mean age of goliath grouper was 4.2 yr (range = 1
to 17 yr; n = 229); 82% of the individuals were under the size/age of sexual maturity. Goliath grouper in French Guiana are larger
at a...
Tipo: Text
Palavras-chave: Epinephelidae; Critically Endangered species; Sclerochronology; Fin rays; MPA.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00292/40320/38759.pdf
Phosphorites and Paleoceanography
Provedor de dados: 5
Autores: Arthur, Ma; Jenkyns, H C.
Phosphorite genesis correlates in a general way with elevated sea level and warm climate and is therefore influenced by plate
tectonics and continental drift. Phosphorite genesis correlates more specifically with transgression -- a result of the interaction of
continental hypsometry, tectonic perturbation and eustatic effects -- whereby a small number of shallow slope and shelf sites are
available for phosphate fixation. Phosphorite genesis correlates with warm climate. Oceanic anoxic events (OAE's : episodes of
world-wide deposition and preservation of organic carbon), which also correlate with particularly high sea level stands, generally
do not coincide with major phosphorogenic episodes. In contrast to the assertions above, the permian Phosphoria...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00245/35660/34169.pdf
Seasonal variability in microplanktonic biomasses in the Gironde dilution plume (Bay of Biscay):
relative importance of bacteria
Provedor de dados: 5
Autores: Artigas, Lf.
Bacterial and phytoplankton biomasses were estimated in a four-year study along a saline gradient (the dilution plume of the
Gironde estuary on the Aquitanian continental shelf), by measuring bacterial abundance and mean cell volumes (epifluorescence
counts) and chlorophyll-a concentrations tin vitro fluorescence). The spatial and temporal distribution of phytoplankton enabled us
to determine the seasonal succession of algal blooms, sprouting in the marine waters of the inner shelf in early spring
(picoplanktonic forms), reaching their annual maximum (10 mu g L-1) in plume waters in advanced spring, and moving to
estuarine waters in the summer (> 20 mu m forms). Bacterial biomasses followed mainly a decreasing dilution gradient,
especially in winter and...
Tipo: Text
Palavras-chave: Bactéries; Phytoplancton; Rapport des biomasses microbiennes; Variabilité saisonnière; Panache de dilution
girondin; Bacterioplankton; Phytoplankton; Microbial biomass ratio; Seasonal variability; Gironde dilution plume.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00325/43659/43210.pdf
Physical Origin of Crustal Movements on Passive Margins
Provedor de dados: 5
Autores: Artyushkov, E V.
Passive margins of the continents are usually forming after a break-up continental plates. The break-up results from the
accumulation of a hot low-velocity and low-density mantle beneath the crust along the belt crossing a continental plate. Heat flow
from the low-velocity mantle into the crust strongly reduces the lithosphere thickness down to 20-30 km. Isostatic uplift occurs
over the low-velocity mantle lense which produces high tensile stresses in the lithosphere of about several kilobars. After the
break-up, cooling of the crust and of the low-velocity mantle is accompanied by vertical crustal subsidence. The following
isostatic crustal sinking may be produced by the load of sediments. The width of the area subsided on a passive margin depends
on the...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00246/35682/34190.pdf
Mechanism of Formation of Active Margins
Provedor de dados: 5
Autores: Artyushkov, E V.
The upper mantle material is strongly heated beneath active margins as compared to stable continental and oceanic areas. The
energy associated with its abnormal heating is by two orders of magnitude higher than any energetic effects of subduction. This
hot material has been injected from a large depth, most likely from the core-mantle boundary. Low-velocity and low-density
mantle material is segregated from the hot upper mantle beneath active margins. It forms a layer several tens of kilometers thick
beneath the lithosphere. Oceanic lithosphere is denser than anomalous mantle and it sinks into anomalous mantle layer. Heavy
eclogite is forming in the oceanic crust after it contacts anomalous mantle. This permits the subduction to occur along an
inclined...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00245/35656/34165.pdf
Decadal oscillations in a simplified coupled model due to unstable interactions between zonal winds
and ocean gyres
Provedor de dados: 5
Autores: Arzel, Olivier; Huck, Thierry.
A simplified coupled ocean-atmosphere model, consisting of a one-layer bidimensional ocean model and a one-layer
unidimensional energy balance atmospheric model [J. Clim. 13 (2000) 232] is used to study the unstable interactions between
zonal winds and ocean gyres. In a specific range of parameters, decadal variability is found. Anomalies, quite homogeneous
zonally, show small-scale wavelength in latitude: perturbations emerge and grow at the southern limb of the intergyre boundary
and propagate southward before decaying. The wind stress anomalies are proportional to the meridional gradient of the
atmospheric temperature anomalies: this ratio acts as a positive amplification factor, as confirmed by a parameter sensitivity
analysis. Assuming...
Tipo: Text
Palavras-chave: Ocean atmosphere system; Air sea interaction; Air sea coupling; Ocean circulation.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-647.pdf
Aménagement des pêcheries côtières de Nord-Bretagne, algues-crustacés
Provedor de dados: 5
Autores: Arzel, Pierre.
Today, the seaweed industry's main products are the alginates and carraghenanes. The industrial network faces many problems.
However, it remains prosperous since it ranks fifth in the world for alginate production and third for caraghenanes'. This stability
which seems safe on a middle term standpoint must not conceal the crisis which previously hit Fucus' exploitation. Rightly so,
being harvested until approximately 1950 for soil amendment purposes, coastal kelp (i.e. Fucus), was replaced by chemical
fertilizers. Brittany's production which was reaching 180 000 cubic metre in the twenties, close to 200 000 tons of fresh kelp,
would have become non existent if it had not been converted into seaweed meal for livestock feed. The market demand was then...
Tipo: Text
Palavras-chave: Coastal fisheries development; North Brittany; Crustacean; Seaweed; Aménagement des pêcheries cotières;
Nord Bretagne; Crustacé; Algue.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-1591.pdf
La flotille goémonière et l'exploitation du champ de laminaires sur les côtes bretonnes - Essai de
synthèse
Provedor de dados: 5
Autores: Arzel, Pierre.
La forêt de Laminaires des côtes bretonnes est un élément important de l'environnement littoral. La biologie des principales
espèces qui la compose est bien connue. On note une adaptation aux difficiles conditions de milieu. Le fonctionnement de la
reproduction vise à une occupation puissante des fonds, la croissance peut s'adapter aux conditions de densité sur les fonds. Elle
est ralentie en situation de forte colonisation du milieu. L'acquisition de la maturité sexuelle obéit au mêmes lois. Elle est plus
précoce sur les champs éclaircis du fait de l'accélération de la croissance. La durée de vie des algues est brève et ne dépasse pas 5
années. Bien que l'on ne dispose pas d'une estimation précise des populations, on en connaît toutefois leur évolution...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00089/19984/17648.pdf
Etude sur le droit coutumier relatif à la récolte du goémon dans le Léon
Provedor de dados: 5
Autores: Arzel, Pierre.
INTRODUCTION - L'extension des eaux territoriales à 200 milles par les pays riverains risque de modifier profondément les
pêches mondiales. De nouvelles perspectives pour la gestion des pêcheries sont à envisager. La conduite des politiques, leurs
applications dans les divers pays du monde, seront une tâche difficile, et ce d'autant plus que les expériences pratiques à nos jours
restent rares. Aussi, la Division de la Planification et des politiques de pêche a-t-elle décidé de préparer une série de documents
techniques sur les principes et les différentes méthodes d'intervention en ce domaine. Or, les pêcheries traditionnelles sont très
souvent riches d'un patrimoine d'us et de coutumes relatifs à l'exploitation de la ressource ; et cette information reste...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00077/18828/16405.pdf
Compte rendu des essais de pêche du Laminaria hyperborea
Provedor de dados: 5
Autores: Arzel, Pierre; Mingant, Christian; Noel, Philippe; Gourronc, Eugene.
Introduction
During the month of April 1994, the "Ressources Halieutiques de l'Ifremer" laboratory (Ifremer Halieutic
Resources) in Brest tested tools to be used for the harvesting of Laminaria hyperborea as requested by Système Bio-Industries.
The first results of this trial campaign are as follows: The tools are effective as far as interspecific as well as intraspecific
selectivity. Rightly so, Laminaria hyperborea accounts for nearly 100% of the harvest. We also noticed that only large size plants
are harvested, commercial harvest is satisfactory in terms of yield. However insufficiencies still remain. Comb efficiency is low,
since the actual harvest only represents 10 to 12% of the stipes collected when the machine goes through. This low efficiency...
Tipo: Text
Palavras-chave: Oceanographical campagne; Seaweed; Laminaria hyperborea; Fishing; Campagne océanographique; Algue;
Laminaria hyperborea; Pêche.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1651.pdf
Les sites méditerranéens. Ecologie pélagique et benthique. Rapport concernant les campagnes Ecolion
1 & 2
Provedor de dados: 5
Autores: Arzul, G; Panouse, M; Romana, A; Fiala, M; Razouls, S; De Bovee, F; Labat, J.p.
As part of its nuclear program, E.D.F. put the C.N.E.X.O. in charge of the ecological study of a list of sites that had been
considered for the implantation of nuclear power plants on the Mediterranean coast: PORT-la-N0UVELLE South,
PORT-la-NOUVELLE North and FLEURY-sur-AUDE. The aim of this study is to compare, from an ecological point of view, the
different sites during critical periods of the annual cycle: summer and spring. This report summarises the results of the two
campaigns (ECOLION l and II) conducted on the area located between the Cap d'Agde and the Cap Leucate, and including the
three studied sites. The study analysed the physicochemical parameters and the primary and secondary pelagic productions, and
includes a qualitative and quantitative...
Tipo: Text
Palavras-chave: Ecology; Ecolion; Cruise; Mediterranean sea; Ecologie; Ecolion; Campagne océanographique; Mer
Méditerranée.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/rapport-3698.pdf
Bilan 1984-1985 des études "Eaux colorées". Compte-rendu de réunion des 21 et 22 janvier 1986
Provedor de dados: 5
Autores: Arzul, Genevieve.
Les études entreprises sur le thème "Eaux colorées" durant les années 1984-1985 ont montré des résultats divers : - les essais de
cultures de Dinophysis acuminata et de Gyrodinium aureolum ont donné des résultats fragmentaires tout en permettant de dégager
quelques points positifs, mais les essais de mise en culture n'ont pas encore abouti. - les études hydrologiques à long terme pour la
surveillance d'apparition de Gyrodinium aureolum en Baie de Douarnenez, Dinophysis acuminata dans un bassin du Havre et en
Baie de Vilaine sont en voie d'achèvement. Y sont adjointes les observations faites sur les échantillons prélevés à Plogoff et
Ploumoguer en 1978-80. - l'extraction des toxines de Gyrodinium aureolum, la standardisation du test souris pour le DSP,...
Tipo: Text
Palavras-chave: Eaux colorées; Dinophysis acuminata; Gyrodinium aureolum; Phyto-toxines; Sédiments.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00139/25020/23125.pdf
Effects on phytoplankton growth of dissolved substances produced by fish farming
Provedor de dados: 5
Autores: Arzul, Genevieve; Clement, Alejandro; Pinier, Anne.
Fish Farming enriches the water column in dissolved organic and inorganic material. These materials excreed by the fish, elutriate
from uneaten food and derive from other polluting substances. Ratios of the organic/inorganic forms of substances (for example N
and P) are thus modified. Such perturbations in turn affect phytoplankton development. From in vitro analyses and tests of water
taken from a turbot rearing tank, we show the changes in seawater chemical composition produced as well as the way growth was
modified in three phytoplankton species: the diatom, Chaetoceros gracile, and the dinoflagellates, Gymnodinium cf. nagasakiense
and Alexandrium minutum. Elutriates from the granules used for feed (0.1 to 100 mg.l(-1)) were found to be stimulating,...
Tipo: Text
Palavras-chave: Antibiotique; Fécès; Aliment; Aquaculture; Régulation de croissance; Phytoplancton; Urée; Antibiotic; Faeces;
Feed; Fish farming; Growth regulation; Phytoplankton; Urea.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29887/28340.pdf
Surveillance écologique et halieutique. Site de Flamanville Année 1987
Provedor de dados: 5
Autores: Arzul, Genevieve; Dreves, Luc; Erard-le Denn, Evelyne; Martin, J; Quintin, Jean-yves; Miossec, Dominique; Piriou,
Jean-yves.
Surveillance n°5 of Flamanville power-plant takes in account studies between march 1987 and march 1988. Hydrology,
microbiology, phytoplancton, zooplancton, intertidal phytobenthos, intertidal and sublittoral zoo benthos, fishing are studied. The
year 1987 is the second year of working for this power plant.
Tipo: Text
Palavras-chave: Surveillance; Power plant; Fishing; Benthos; Pelagos; Surveillancce; Centrale nucléaire; Halieutique; Benthos;
Pelagos.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-6469.pdf
Surveillance écologique et halieutique. Site de Flamanville Année 1990
Provedor de dados: 5
Autores: Arzul, Genevieve; Dreves, Luc; Erard-le Denn, Evelyne; Quintin, Jean-yves; Martin, Jocelyne; Miossec, Dominique.
Surveillance n°8 of FLAMANVILLE power plant takes in account studies between march 1990 and september 1990. Hydrology,
microbiology, phytoplankton, zooplankton, intertidal zoobenthos and fishing are studied. The year 1990 is the fifth year of
working for this power plant. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Pelagos; Fisheries; Benthos; Monitoring; Flamanville; Nuclear power plant; Pelagos; Halieutique; Benthos;
Surveillance; Flamanville; Centrale nucléaire.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-6799.pdf
Surveillance écologique et halieutique. Site de Flamanville Année 1988
Provedor de dados: 5
Autores: Arzul, Genevieve; Dreves, Luc; Erard-le Denn, Evelyne; Quintin, Jean-yves; Miossec, Dominique; Piriou, Jean-yves.
Surveillance n°6 of Flamanville power-plant takes in account studies between march 1988 and september 1988. Hydrology,
microbiology, phytoplancton, zooplancton, intertidal phytobenthos, intertidal and sublittoral zoobenthos, fishing are studied. The
year 1988 is the third year of working for this power plant.
Tipo: Text
Palavras-chave: Surveillance; Power plant; Fishing; Benthos; Pelagos; Surveillancce; Centrale nucléaire; Halieutique; Benthos;
Pelagos.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-6470.pdf
Surveillance écologique et halieutique. Site de Flamanville Année 1986
Provedor de dados: 5
Autores: Arzul, Genevieve; Erard-le Denn, Evelyne; Quintin, Jean-yves; Dreves, Luc; Martin, J; Veron, Gerard.
Surveillance n°4 of Flamanville power-plant takes in account studies between March 1986 an January 1987. Hydrology,
microbiology, phytoplancton, zooplancton, intertidal and sublittoral benthos, fishing are studied. The year 1986 is the first year of
working for this power plant.
Tipo: Text
Palavras-chave: Surveillance; Power plant; Fishing; Benthos; Pelagos; Surveillancce; Centrale nucléaire; Halieutique; Benthos;
Pelagos.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-6468.pdf
In vitro test-based comparison of pesticide-induced sensitivity in marine and freshwater
phytoplankton
Provedor de dados: 5
Autores: Arzul, Genevieve; Quiniou, Francoise; Carrie, Cecile.
This study aims to assess the effects of two pesticides, namely the insecticide carbofuran and the herbicide isoproturon, on
monospecifically cultivated marine and freshwater phytoplankton according to standard methods. In the presence of pesticide,
growth rates were lower in marine species Chaetoceros gracilis and Phaeodactylum tricornutum than in freshwater species
Chlorella vulgaris and Selenastrum capricornutum after 72 hours. The EC50 values were obtained with the REGTOX Macro
software, and the NEC values by applying the DEBtox model.
Tipo: Text
Palavras-chave: REGTOX Macro; Pesticides; Marine phytoplankton; Freshwater phytoplankton; DEBtox model.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-6605.pdf
Comparaison de l'hétérotrophie phytoplanctonique en laboratoire et in situ : efflorescence estivale en
eau côtière et populations printanières en mer stratifiée
Provedor de dados: 5
Autores: Arzul, Genevieve; Videau, Christiane; Bodennec, Guy; Crassous, Marie-pierre; Youenou, Agnes.
Pour mieux connaître les facteurs qui agissent sur les interactions trophiques entre le phytoplancton et le milieu nutritif, nous
avons étudié la capacité hétérotrophe du phytoplancton en conditions contrôlées, non axéniques, au laboratoire. Les expériences
réalisées avec la [U-14C] glutamine, étaient basées sur l'étude des vitesses d'assimilation. Les résultats obtenus avec deux espèces
du genre Gymnodinium et une diatomée ont été vérifiés lors d'efflorescences en eau côtière et estuarienne, montrant l'adaptation
des algues au milieu riche en substances organiques et leur capacité hétérotrophe en fonction de l'éclairement. L'effet de
l'éclairement sur la capacité phagotrophe de Gymnodinium a été observé au laboratoire. L'étude réalisée sur les particules...
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00105/21599/19179.pdf
Transmission expérimentale du virus de type herpes chez l'huître creuse, Crassostrea gigas
Provedor de dados: 5
Autores: Arzul, Isabelle.
Au cours de l'été 1991, d'importantes mortalités de larves d'huître creuse, Crassostrea gigas, ont été observées dans des écloseries,
simultanément en France (Comps et Cochennec, 1993) et en Nouvelle-Zélande (Hine & al., 1992).
Les examens
histologiques ainsi que des examens réalisés en microscopie électronique à transmission d'échantillons de larves présentant des
mortalités ont permis de détecter la présence de particules virales associées à des lésions cellulaires. D'après la morphologie, la
taille, les localisations intranucléaires et cytoplasmiques du virus, il est possible d'envisager son appartenance à la famille des
Herpesviridae. De nouvelles mortalités sporadiques ont été observées au cours des étés suivants sur des lots de larves élevées...
Tipo: Text
Palavras-chave: Virus; Herpesviridae; Bivalve; Crassostrea gigas; Etiologie; Epidémiologie; Diagnostic; Reproduction infection.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00106/21711/19289.pdf
Infection à virus de type Herpes chez les bivalves : transmission expérimentale et induction de
l'infection
Provedor de dados: 5
Autores: Arzul, Isabelle.
Depuis 1991, d'importantes mortalités sont observées chez des lots de larves et de naissain d'huître creuse, Crassostrea gigas, mais
également sur des lots de larves d'autres espèces de bivalve telles que, l'huître plate, Ostrea edulis, les palourdes, Ruditapes
decussatus et Ruditapes philippinarum. Ces épizooties se produisent plus généralement à fortes températures en écloserie-nurserie
et en période estivale dans le milieu naturel. Les techniques de détection utilisées jusqu'alors pour rechercher ces infections
virales, histologie et microscopie électronique à transmission, paraissent assez inadaptées, tant du fait de leur sensibilité, du temps
qu'elles nécessitent et de leur coût. Aussi, le laboratoire IFREMER de Ronce les Bains (Charente-Maritime) a...
Tipo: Text
Palavras-chave: Mollusques; Bivalves; Crassostrea gigas; Huître japonaise; Pathologie; Herpèsvirus; Infection; Expérimentation.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00108/21957/19551.pdf
Interactions bivalves-protozoaires parasites : un équilibre dynamique
Provedor de dados: 5
Autores: Arzul, Isabelle.
Les bivalves jouent un rôle important dans le fonctionnement et la structure des écosystèmes marins et présentent un intérêt
économique non négligeable en tant que ressources alimentaires dans de nombreux pays. En raison de leur impact négatif sur les
populations de mollusques sauvages et d’élevage, les parasites protozoaires des genres Bonamia, Marteilia et Perkinsus font
l’objet de programmes de surveillance et de travaux de recherche visant à mieux décrire leur diversité et leurs interactions avec
leurs hôtes. Les travaux que nous avons réalisés sur ces parasites protozoaires visent à mieux comprendre pourquoi ces
interactions, apparemment stables, sont sans cesse réajustées et pourquoi l’équilibre d’un système hôte-parasite est dynamique.
Les résultats...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00239/34983/33503.pdf
Herpèsvirus infectant les bivalves marins : détection, génome et transmission
Provedor de dados: 5
Autores: Arzul, Isabelle.
Since 1991, high mortality rates of larvae and juveniles of different bivalve mollusc species associated with herpesvirus infections
have been reported in different countries. The aim of this study was to determine if more than one helpesvirus species was
responsible for these infections or just one species exhibiting polymorphism. The investigations concentrated on the analysis of
the virus genome, studies of virus transmission in different mollusc species and on the potential role of bivalve adults in the
occurrence of infections. The analysis of various target sequences within the virus genome present in infected larvae samples
demonstrated the presence of polymorphism. More notably a variant of the virus was identified and the variation appears...
Tipo: Text
Palavras-chave: Herpèsvirus; Bivalves; Transmission; Polymorphisme; OsHV-1; Diagnostic; Herpesviruses; Bivalvia;
Transmission; Polymorphism; OsHV-1; Diagnostic.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00105/21675/19253.pdf
Permanent Advisory Network for Diseases in Aquaculture (PANDA)
Provedor de dados: 5
Autores: Arzul, Isabelle; Ariel, E.; Hill, B.
The PANDA project aims to establish a permanent network of aquatic animal health specialists (researchers and diagnosticians) to
provide a forum for the debate of issues concerning diseases in European aquaculture, and to communicate the results of these
discussions to the European Commission with provision of advice on EU policy and legislation for aquatic animal health. PANDA
consists of five scientific work packages: risk analysis, epidemiology, diagnosis, environmentally safe strategies for disease
control, training in research and diagnostics. These work packages are lead by PANDA consortium members, supported by small
task force of specialists, with wider input from experts registered in the PANDA network. Focused workshops and ongoing
online...
Tipo: Text
Palavras-chave: Aquatic infectious diseses; Diagnosis; Risk analysis; PANDA; Animal health.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3320.pdf
PERLE - Programme d'expérimentation et de recherche sur l'huître plate Ostrea edulis - Rapport
final des sous-programmes 2 et 3
Provedor de dados: 5
Autores: Arzul, Isabelle; Baillon, Laury; Boudry, Pierre; Bouget, Jean-francois; Chollet, Bruno; Cochet, Helene; Couraleau,
Yann; Dubreuil, Christine; Duchene, Julie; Dutartre, Julie; Garcia, Celine; Heloury, Purotu; Heurtebise, Serge; Huchet, Eve;
Hussenot, Mathieu; Langlade, Aime; Ollier, Simon; Omnes, Emmanuelle; Pouvreau, Stephane; Roby, Charlotte; Serpin,
Delphine; Viard, Frederique; Wacrenier, Candice; Lapegue, Sylvie.
L’huître plate (Ostrea edulis) est une espèce endémique des côtes européennes, elle est présente depuis des millions d’années. Son
aire de répartition est très vaste allant de la Norvège jusqu’au Maroc. Elle est également présente en mer Méditerranée, en mer
Noire, mais également au Canada, aux Etats-Unis ou encore en Afrique du Sud, à la suite d'introductions pour des raisons
aquacoles. En France, à partir de la fin des années 70, de fortes mortalités ont été constatées sur les bancs naturels et en élevage,
faisant rapidement chuter la production de 20 000 tonnes à 2 000 tonnes. Ces mortalités ont été attribuées à deux maladies
parasitaires : la marteiliose (due au parasite Marteilia refringens) et la bonamiose (due au parasite Bonamia ostreae). Trente...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00247/35815/34328.pdf
Effects of temperature and salinity on the survival of Bonamia ostreae parasite infecting falt oyster
Ostrea edulis in sea water
Provedor de dados: 5
Autores: Arzul, Isabelle; Bond, Celine; Gagnaire, Beatrice; Chollet, Bruno; Morga, Benjamin; Ferrand, Sylvie; Robert, Maeva;
Renault, Tristan.
Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting flat oysters
Ostrea edulis. The parasite has been described in different ecosystems from estuaries to open sea and no clear correlations could
be demonstrated between the development of the disease and environmental parameters such as temperature or salinity. The
parasite life cycle, including its survival outside the host is not completely known. Nevertheless, the infection can be directly
transmitted by cohabitation between infected and non infected oysters suggesting that the parasite does not need intermediate host
to complete its cycle. In the present study, the impact of temperature and salinity on the survival of purified parasites...
Tipo: Text
Palavras-chave: Effects; Temperarature; Salinity; Bonamia ostreae; Parasite; Pathology; Flat oyster; Ostrea edulis; Oyster.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3375.pdf
Flow cytometry to measure impact of temperature and salinity on the survival of Bonamia ostreae,
parasite infecting flat oyster Ostrea edulis, in seawater
Provedor de dados: 5
Autores: Arzul, Isabelle; Bond, Celine; Gagnaire, Beatrice; Morga, Benjamin; Chollet, Bruno; Ferrand, Sylvie; Robert, Maeva;
Renault, Tristan.
Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting the flat oyster,
Ostrea edulis. After its first description in June 1979ı in Brittany, the parasite rapidly spread to all French oyster
farming areas and in other European countries through transfers of live molluscs. The parasite has been described in different
ecosystems from estuaries to open sea and no clear correlations could he demonstrated between the disease development and
environmental parameters like temperature or salinity. The infection can he directly transmitted by cohabitation between infected
and non infected oysters. Nevertheless, the parasite life cycle, including its survival outside the host, is not completely...
Tipo: Text
Palavras-chave: Impact; Salinity; Temperature; Flow cytometry; Bonamia ostreae; Parasite; Ostrea edulis; Oyster.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3372.pdf
New Perspective On The Haplosporidian Parasites Of Molluscs
Provedor de dados: 5
Autores: Arzul, Isabelle; Carnegie, Ryan B.
The protist phylum Haplosporidia comprises over 40 described species with representatives infecting a range of mollusc hosts,
including several ecologically and economically significant pathogens. Continuing exploration of haplosporidian diversity has
added ten new species in recent years and brought the phylogenetics of the group into somewhat clearer focus, with monophyletic
Bonamia and Minchinia lineages continuing to be supported. However, the addition of new sequences to phylogenetic analyses
has left the paraphyletic genus Haplosporidium’s picture less resolved. It is not clear that even two genera will be enough to
accommodate the species presently drawn to the Haplosporidium regions of the haplosporidian tree. In this review, we summarize
recent...
Tipo: Text
Palavras-chave: Haplosporidium; Bonamia; Minchinia; MSX disease; Haplosporidiosis; Bonamiosis.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00275/38619/37149.pdf
Contribution to the understanding of the cycle of the protozoan parasite Marteilia refringens
Provedor de dados: 5
Autores: Arzul, Isabelle; Chollet, Bruno; Boyer, S.; Bonnet, D.; Gaillard, Juliette; Baldi, Yoann; Robert, Maeva; Joly,
Jean-pierre; Garcia, Celine; Bouchoucha, Marc.
The paramyxean parasite Marteilia refringens infects several bivalve species including European flat oysters Ostrea edulis and
Mediterranean mussels Mytilus galloprovincialis. Sequence polymorphism allowed definition of three parasite types ‘M’, ‘O’ and
‘C’ preferably detected in oysters, mussels and cockles respectively.Transmission of the infection from infected bivalves to
copepods Paracartia grani could be experimentally achieved but assays fromcopepods to bivalves failed. In order to contribute to
the elucidation of the M. refringens life cycle, the dynamics of the infection was investigated in O. edulis, M. galloprovincialis
and zooplankton over one year in Diana lagoon, Corsica (France). Flat oysters appeared non-infected while mussels were
infected...
Tipo: Text
Palavras-chave: Bivalves; Marteilia refringens; Copepods; Paracartia latisetosa; Zooplankton; Parasite life cycle.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00165/27635/25768.pdf
One Perkinsus species may hide another: characterization of Perkinsus species present in clam
production areas of France
Provedor de dados: 5
Autores: Arzul, Isabelle; Chollet, Bruno; Michel, Justine; Robert, Maeva; Garcia, Celine; Joly, Jean-pierre; Francois, Cyrille;
Miossec, Laurence.
Although clam populations in France are known to be infected with protozoans of the genus Perkinsus, no molecular
characterization was previously performed on these parasites. Considering that several members of this genus have been
associated with mortalities of molluscs worldwide, a study was undertaken in order to characterize these parasites in France. For
that purpose, clams, Ruditapes philippinarum and R. decussatus, collected from different production areas and found to be
infected with Perkinsus sp. in thioglycolate culture medium, were selected for PCR-RFLP tests and sequencing. Perkinsus olseni
was detected in all the investigated areas and results also suggested the presence of P. chesapeaki in Leucate, a lagoon on the
Mediterranean coast and in...
Tipo: Text
Palavras-chave: Clam parasites; Perkinsus chesapeaki; Perkinsus olseni; Ruditapes philippinarum; Ruditapes decussatus;
Ribosomal RNA; Actin; ISH.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00094/20542/18205.pdf
VIVALDI, A H2020 European Project aiming at preventing and mitigating farmed bivalve diseases
Provedor de dados: 5
Autores: Arzul, Isabelle; Feist, Steve; Figueras, Antonio; Lapegue, Sylvie; Paillard, Christine; Furones, Dolors.
The European shellfish industry enjoys a privileged position on the global scene. Its social dimension is essential, as it employs a
high number of people in more than 8000 companies, mostly micro-companies. Shellfish production in Europe is little diversified
and mainly relies on the industrially produced mussels, oysters and clams. Over the recent years, this sector has grown more
slowly than other fish farming sectors, notably because it depends a great deal on the environmental quality and the emergence of
diseases. Mortality events, linked to pathogen organisms such as viruses, bacteria and parasites (protozoa), tend to weaken the
production’s sustainability. In this context, the European project VIVALDI (PreVenting and mItigating farmed biVALve...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00352/46307/45975.pdf
Effects of temperature and salinity on the survival of Bonamia ostreae, a parasite infecting flat oysters
Ostrea edulis
Provedor de dados: 5
Autores: Arzul, Isabelle; Gagnaire, Beatrice; Bond, Celine; Chollet, Bruno; Morga, Benjamin; Ferrand, Sylvie; Robert, Maeva;
Renault, Tristan.
Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting the flat oyster
Ostrea edulis. The parasite has been described in various ecosystems from estuaries to open sea, but no clear correlation has yet
been demonstrated between disease development and environmental parameters. In this study, the effect of temperature and
salinity on the survival of purified parasites maintained in vitro in seawater was investigated by flow cytometry. Purified parasites
were incubated in various seawater media (artificial seawater, natural seawater, seabed borewater) at various temperatures (4, 15
and 25°C) and subjected to a range of salinities from 5 to 45 g l– 1. Parasites were collected after 12, 24 and 48 h of...
Tipo: Text
Palavras-chave: Salinity tolerance; Temperature tolerance; Cell viability; In vitro assays; Flow cytometry; Bonamia ostreae.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6443.pdf
Bilan 2003 du réseau REPAMO - Réseau national de surveillance zoosanitaire des mollusques marins
Provedor de dados: 5
Autores: Arzul, Isabelle; Garcia, Celine; Joly, Jean-pierre; Miossec, Laurence; Chollet, Bruno; Robert, Maeva; Cuvelier, Nicolas;
Lefebvre, Alain; Le Gagneur, Eric; Kopp, Joel; Mouillard, Gilbert; Gerla, Daniel; Le Saux, Jean-claude; Raguenes, Pierre; Le Gal,
Dominique; Langlade, Aime; Bedier, Edouard; Nourry, Max; Martin, Jean-louis; Fillon, Alain.
The REPAMO network (network ofmollusc pathology), created in 1986, ensures the survey of shellfish health status along French
coasts according? to European Directives 91/67/EEC and 95/70/EEC. The aims of the network are 1 - to prevent the introduction
and spread of exotic pathogens, 2-to study the means to decrease the impact of pathogens already present and to survey their
evolution. In 2003, the REPAMO network focused on the survey oflisted diseases (bonamiosis and marteiliosis) in two areas
under agreement process (Banc de Granville and zone X) and on the study of abnormal morlalities. Number of reported abnormal
morlalities has increased in 2003. This rise can be partly explained by the recent network restructuring, but also by the summer
heatwave and...
Tipo: Text
Palavras-chave: Réseau; Surveillance; Pathologie; Mollusques; Coquillages; Etat de santé; Network; Surveillance; Pathology;
Molluscs; Shellfish; Health status.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00086/19699/17340.pdf
Can the protozoan parasite Bonamia ostreae infect larvae of flat oysters Ostrea edulis?
Provedor de dados: 5
Autores: Arzul, Isabelle; Langlade, Aime; Chollet, Bruno; Robert, Maeva; Ferrand, Sylvie; Omnes, Emmanuelle; Lerond,
Sophie; Couraleau, Yann; Joly, Jean-pierre; Francois, Cyrille; Garcia, Celine.
Bonamia ostreae is an intracellular protistan parasite affecting flat oysters Ostrea edulis. It can be detected in juveniles but
mortalities mainly affect oysters which are more than 2 years old. The parasite is usually observed inside haemocytes and
sometimes free, notably in gill epithelia suggesting a parasite release through this organ. However, the infective form and ways of
entry and release remain undetermined. Flat oysters incubate their larvae in their pallial cavity for 8–10 days before releasing them
into the water column. Flat oysters in Bay of Quiberon in South Brittany (France) are known to be infected with B. ostreae since
1979 and is the most important area in France for O. edulis spat collection. Flat oysters incubating larvae were sampled...
Tipo: Text
Palavras-chave: Bonamia ostreae; Flat oyster; Ostrea edulis; Transmission; Larvae; Parasite life cycle.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00028/13898/12566.pdf
Molecular characterization of parasites of the genus Perkinsus present in clams from French
producing areas
Provedor de dados: 5
Autores: Arzul, Isabelle; Michel, Justine; Chollet, Bruno; Robert, Maeva; Miossec, Laurence; Garcia, Celine; Francois, Cyrille.
Production of clams is the third most important bivalve production in France and was estimated at 3400 metric tons in 2001
among which 60% came from aquaculture and 40% from fisheries. Surveillance of clam diseases mainly relies on histology and
thioglycolate culture, two techniques allowing detection of parasites of the genus Perkinsus but not specific enough to determine
the parasite species. Based on a previous study aiming at estimating distribution and prevalence of perkinsosis in France, we
selected 34 infected clams from 4 different producing areas in order to characterize the parasite species. Molecular
characterization was done by PCR-RFLP targeting the ITS region as described by Abollo et al. (2006). 16 PCR products were
cloned and 10 to 20...
Tipo: Text
Palavras-chave: French producing areas; Clams; Perkinsus olseni; Parasite.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6269.pdf
Bonamia ostreae and Ostrea edulis : a stable host-parasite system in France?
Provedor de dados: 5
Autores: Arzul, Isabelle; Miossec, Laurence; Blanchet, Estelle; Garcia, Celine; Francois, Cyrille; Joly, Jean-pierre.
Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting flat oysters
Ostrea edulis. After its first description in June 1979 in L'Ile Tudy, Brittany, the parasite rapidly spread to all French oyster
farming areas and in other European countries through transfers of live molluscs. Bonamiosis and marteiliosis, another protozoan
disease appeared in the seventies, drastically reduced the French flat oyster production from 20 000 tonnes in 1970 to less than
2000 tonnes after 1981. In 2001, about 1650 t of flat oysters were marketed in France. The production is restricted to several areas
specialised in reproduction, growth and/or marketing, and depends on transfers of animals. Most important production...
Tipo: Text
Palavras-chave: Bonamia ostreae; Parasitology; Pathology; Ostrea edulis; Oyster.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-6381.pdf
A long term study of bonamiosis in Quiberon bay, France
Provedor de dados: 5
Autores: Arzul, Isabelle; Miossec, Laurence; Blanchet, Estelle; Garcia, Celine; Joly, Jean-pierre; Francois, Cyrille; Berthe,
Franck.
Bonamiosis was first reported in association with mass mortality of flat oysters, Ostrea edulis, in June 1979 in L'Ile Tudy,
Brittany. The disease rapidly spread to all of the oyster farming areas in France but also in other European countries. The French
flat oyster production, which already suffered from another protozoan disease, marteiliosis, decreased from 5500 mt in 1979 to
less than 2000 mt after 1980. In 2001, about 350 French farms sell 1650 mt of flat oysters. This production mainly relies on
natural spat collection which specially occurs in Quiberon bay. One third of this spat is transferred from South to North Brittany
for further growth. Quiberon bay constitutes an interesting site regarding the surveillance of bonamiosis because of the...
Tipo: Text
Palavras-chave: Detection; Bonamia ostreae; Protozoan; Diseases; Pathology; Ostrea edulis; Oysters.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3314.pdf
French scallops: A new host for ostreid herpesvirus-1
Provedor de dados: 5
Autores: Arzul, Isabelle; Nicolas, Jean-louis; Davison, Andrew J.; Renault, Tristan.
Sporadic high mortalities were reported among larval French scallops (Pecten maximus). Electron microscopy of moribund larvae
revealed particles with the characteristics of a herpesvirus in association with cellular lesions. PCR and DNA sequencing showed
that the virus is a variant of ostreid herpesvirus-1 that has already been described in clams and oysters. This is the first description
of a herpesvirus infection of a scallop species. The virus was transmitted successfully from an extract of infected scallop larvae to
uninfected scallop or oyster (Crassostrea, gigas) larvae, demonstrating that it is able to infect both species. Detection of viral DNA
in asymptomatic adult scallops by in situ hybridisation indicates that the herpesvirus may have been...
Tipo: Text
Palavras-chave: Bivalve; Host range; Transmission; Polymorphism; OsHV 1; Pecten maximus; Scallop; Herpesvirus.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-739.pdf
Infection à virus de type herpès chez les larves de coquilles Saint-Jacques
Provedor de dados: 5
Autores: Arzul, Isabelle; Nicolas, Jean-louis; Renault, Tristan.
King scallop (Pecten maximus) larvae suffered massive mortality during the summer of 2000 at a hatchery located in Brittany.
Samples were taken for various types of analyses.
Tipo: Text
Palavras-chave: Pathologie; Pecten maximus; Coquilles St Jacques; Herpesvirus; Herpesviridae.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3267.pdf
Infections à virus de type herpes chez les bivalves : large spectre d'hôte et détection au stade adulte
Provedor de dados: 5
Autores: Arzul, Isabelle; Renault, Tristan.
In 1972, Farley reported the presence of herpes-type viral particles in adult American oysters (Crassostrea virginica) for the first
time. Since then, this pathogen has been detected in various marine bivalve species, usually associated with massive mortality
events. To date, herpes-type viruses have been detected in the following species: C gigas, Ostrea edulis, O. angasi, Tiostrea
chilensis, Ruditapes decussatus, R. philippinarum and most recently, Pecten maximus.
Tipo: Text
Palavras-chave: Pathogènes; Bivalves; Herpesvirus; Herpesviridae.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3266.pdf
Experimental herpes-like viral infections in marine bivalves: demonstration of interspecies
transmission
Provedor de dados: 5
Autores: Arzul, Isabelle; Renault, Tristan; Lipart, Cecile.
Since 1972, herpes-like virus infections have been reported in several marine bivalve species around the world. Viral detection
was often associated with high mortality rates in larvae and spat. To determine whether a single virus is able to infect different
bivalve host species, we carried out experimental transmission assays. As a first step, 8 assays were performed to infect axenic
Crassostrea gigas larvae with virus from infected C. gigas larvae using a previously described protocol. The protocol appeared
reliable and PCR was confirmed as a powerful technique for detecting viral DNA in experimentally infected oysters. The defined
protocol was then applied to infect different bivalve species. Interspecies viral transmission was demonstrated under...
Tipo: Text
Palavras-chave: Experimental infection; Host specificty; Interspecies transmission; Marine bivalves; Herpes like virus.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-819.pdf
Evidence for interspecies transmission of oyster herpesvirus in marine bivalves
Provedor de dados: 5
Autores: Arzul, Isabelle; Renault, Tristan; Lipart, Cécile; Davison, Andrew.
Since 1991, numerous herpesvirus infections associated with high mortality have been reported around the world in various
marine bivalve species. In order to determine whether these infections are due to ostreid herpesvirus-l (OsHV1), a previously
characterized pathogen of the Japanese oyster (Crassostrea gigas), PCR analysis was carried out on 30 samples of larvae collected
from four bivalve species (C. gigas, Ostrea edulis, Ruditapes decussatus and Ruditapes philippinarum), most exhibiting mortality
prior to collection. All samples were shown to be infected by OsHV1. Viral genomes in three samples of C. gigas and three of R.
philippinarum that originated from the same hatchery were unusual in bearing a deletion of at least 2.8 kbp in an inverted repeat...
Tipo: Text
Palavras-chave: Bivalve; Crassostrea gigas; Herpesvirus; Japanese oyster; Transmission.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-705.pdf
Detection of oyster herpesvirus DNA and proteins in asymptomatic Crassostrea gigas adults
Provedor de dados: 5
Autores: Arzul, Isabelle; Renault, Tristan; Thebault, Anne; Gerard, Andre.
Since 1972, several herpes-like virus infections have been reported among different bivalve species around the world. Most of
these reports involved larvae or juveniles presenting high mortalities. Two case reports of herpes-like viruses concerned adult
oysters, Crassostrea virginica in USA and Ostrea angasi in Australia. Molecular techniques including PCR and in situ
hybridization (ISH) have been recently developed to detect the oyster herpesvirus genome. In the present study, 30 Pacific oyster,
Crassostrea gigas, adults have been analyzed using three different techniques: PCR, ISH and immunochemistry, in order to detect
herpesviruses in asymptomatic individuals. PCR and ISH allowed detection of oyster herpesvirus DNA in 93.3 and 86.6%,
respectively, of...
Tipo: Text
Palavras-chave: Protein; DNA; Healthy carrier; Adult oyster; Crassostrea gigas; Herpesvirus.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-697.pdf
Rotation of Vibrio fischeri Flagella Produces Outer Membrane Vesicles That Induce Host
Development
Provedor de dados: 5
Autores: Aschtgen, Marie-stephanie; Lynch, Jonathan B.; Koch, Eric; Schwartzman, Julia; Mcfall-ngai, Margaret; Ruby, Edward.
Using the squid-vibrio association, we aimed to characterize the mechanism through which Vibrio fischeri cells signal
morphogenesis of the symbiotic light-emitting organ. The symbiont releases two cell envelope molecules, peptidoglycan (PG) and
lipopolysaccharide (LPS) that, within 12 h of light organ colonization, act in synergy to trigger normal tissue development. Recent
work has shown that outer membrane vesicles (OMVs) produced by V. fischeri are sufficient to induce PG-dependent
morphogenesis; however, the mechanism(s) of OMV release by these bacteria has not been described. Like several genera of both
beneficial and pathogenic bacteria, V. fischeri cells elaborate polar flagella that are enclosed by an extension of the outer
membrane, whose function...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00349/46061/45721.pdf
Interactions entre les processus intraplaques et les processus d'accrétion océanique : l'apport du
géoïde altimétrique
Provedor de dados: 5
Autores: Aslanian, Daniel.
Le plancher océanique présente des anomalies topographiques de grandes longueur d'onde qui sont généralement interprétées
comme la manifestation de surface de panaches mantelliques originaires du manteau inférieur. Cependant la revue des résultats
récents, tant géophysiques que géochimiques, montre combien cette théorie est inapte à expliquer ces nouvelles observations.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00034/14523/11831.pdf
Hotspotting called into question
Provedor de dados: 5
Autores: Aslanian, Daniel; Geli, Louis; Olivet, Jean-louis.
In may 1997, Nature published an article by Wessel and Kroenke1 presenting an ageindependent geometric technique which was
supposed to "refine absolute plate motions" and "relocate extinct hotpsots". According to the authors, this technique has the
potential to estimate the pseudo-age for all seamounts in a seamount chain and link cogenetic seamounts produced by hotspot ; in
addition, they claim that its application points to a recent change in the Pacific Plate motion and relocates the Louisville hotspot to
the Hollister ridge, south of Eltanin FZ. Three months later, the same authors proposed to Geophysical Research Letters a note2
(published in february 1998) based on the analysis of synthetic and actual seamount data, showing that the interpretation of...
Tipo: Text
Palavras-chave: Chain; Pacific; Islands; Volcanism.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-450.pdf
Comment on 'A new scheme for the opening of the South Atlantic Ocean and the dissection of an
Aptian salt basin' by Trond H. Torsvik, Sonia Rousse, Cinthia Labails and Mark A. Smethurst
Provedor de dados: 5
Autores: Aslanian, Daniel; Moulin, Maryline.
P>Torsvik et al. recently presented a revised model for the opening of the South Atlantic Ocean. According to these authors,
this new plate tectonic model is internally consistent and consistent with globally balanced plate motion solutions and takes into
account realistic intraplate deformation. However, this model shows a number of kinematic and geological problems that we
underline here, together with some comparisons with the new kinematic model recently proposed by Moulin et al.
Tipo: Text
Palavras-chave: Plate motions; Continental margins: divergent; Africa; Atlantic Ocean; South America.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12504/9878.pdf
Palaeogeographic consequences of conservational models in the South Atlantic Ocean
Provedor de dados: 5
Autores: Aslanian, Daniel; Moulin, Maryline.
Conservational models, like simple shear, pure shear or polyphase models that exclude exchanges between the lower continental
crust and upper mantle, are usually proposed to explain the lithospheric stretching and consequent crustal thinning of passive
continental margins. These models need large amounts of horizontal movement, and have, therefore, important implications for
plate kinematic reconstructions and intraplate deformation. In this paper we propose to show these implications in the Central
Segment of the South Atlantic Ocean. In the Angola–Brazilian system, these models imply about 240 km of horizontal movement.
This movement can be compensated by two end-member mechanisms: (1) an intraplate deformation located in Africa; and (2) an
intraplate...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00087/19839/17757.pdf
Structure and evolution of the Gulf of Lions: The Sardinia seismic experiment and the GOLD (Gulf of
Lions Drilling) project
Provedor de dados: 5
Autores: Aslanian, Daniel; Moulin, Maryline; Schnurle, Philippe; Klingelhoefer, Fraucke; Leroux, Estelle; Rabineau, Marina;
Gailler, Audrey; Bache, Francois; Gorini, Christian; Kuroda, J.; Eguchi, N.; Droxler, Andre W.; Alain, Karine; Roure, François;
Haq, B.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00149/26055/24160.pdf
An index to distinguish surface and subsurface intensified vortices from surface observations
Provedor de dados: 5
Autores: Assassi, Charefeddine; Morel, Y.; Vandermeirsch, Frederic; Chaigneau, A.; Pegliasco, C.; Morrow, R.; Colas, F.;
Fleury, S.; Carton, Xavier; Klein, Patrice; Cambra, R.
In this study, we first show that it is difficult to reconstruct the vertical structure of vortices using only surface observations. In
particular we show that the recent SQG and ISQG methods systematically lead to surface intensified vortices and those subsurface
intensified vortices are thus not correctly modelled. We then investigate the possibility to distinguish between surface and
subsurface intensified eddies from surface data only, using the sea surface height and the sea surface temperature available from
satellite observations. A simple index, based on the ratio of the sea surface temperature anomaly and the sea level anomaly, is
proposed. While the index is expected to give perfect results for isolated vortices, we show that in a complex...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00343/45406/44921.pdf
Interannual variability of temperature over 50 years described by global simulation
Provedor de dados: 5
Autores: Assassi, Charefeddine; Vandermeirsch, Frederic; Morel, Yves; Charria, Guillaume; Theetten, Sebastien; Dussin,
Raphael; Molines, Jean-marc.
The aim of this study is to better understand the different overriding mechanisms that control the evolution of the temperature in
the Bay of Biscay, through realistic simulations over a period of 50 years. Based on the work of Michel et al. (2009) on the
variability of temperature in the Bay of Biscay (Fig1). We will extend the understanding of the interannual variability to the haline
contents and the circulation at regional scale. Here we compare two global simulations, ORCA-G70 and ORCA-GRD100
(¼°resolution), that differs mainly in the vertical resolution and we show their variability.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30778/29137.pdf
Climatic fluctuations, current variability and marine species distribution - a case-study in the
Ligurian sea (north-west Mediterranean)
Provedor de dados: 5
Autores: Astraldi, M; Bianchi, Cn; Gasparini, Gp; Morri, C.
The Ligurian Sea, situated in the north-east corner of the western Mediterranean, is colder than the Tyrrhenian Sea, situated just to
the south. As a consequence, there are differences in the composition and physionomy of their respective marine biota. Episodical
records of epibenthic warm-water species, of Tyrrhenian origin, in the colder Ligurian Sea were paradoxically linked to the
occurrence of low mean air temperatures. This is explained by the peculiar pattern of water and heat exchanges between the
Tyrrhenian and Ligurian basins mediated through the northward-flowing Tyrrhenian Current. In response to the greater cooling of
the Ligurian Sea, induced by the more intense water and temperature losses, a seasonal flux of warmer water is drawn from the...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00096/20768/18394.pdf
Sensitivity of near-surface Tropical Instability Waves to submonthly wind forcing in the tropical
Atlantic
Provedor de dados: 5
Autores: Athie, Gabriela; Marin, Frederic; Treguier, Anne-marie; Bourles, Bernard; Guiavarc'H, Catherine.
This study demonstrates the sensitivity of the near-surface properties in the tropical Atlantic Ocean to the high-frequency of the
winds in numerical simulations. At intra-seasonal timescales (2-50 days), two distinct period ranges dominate the variability in the
upper ocean: periods between 2 and 20 days, which are essentially wind-forced and periods between 20 and 50 days, due mostly
to Tropical Instability Waves (TIWs). Using a numerical model forced by different wind fields, it is shown that the characteristics
of the intra-seasonal variability in the ocean surface mixed-layer are strongly dependent on the wind forcing. Submonthly winds
are shown to force large variability in the upper ocean that can strikingly decrease the amplitude of the TIWs in the...
Tipo: Text
Palavras-chave: Equatorial Atlantic; Intra seasonal variability; Tropical instabilities; Ocean mixed layer; Sensitivity numerical
experiments.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11117/7967.pdf
Contrasts in benthic community structure off the north Yorkshire coast
Provedor de dados: 5
Autores: Atkins, S M.
Two macro-infaunal communities have been monitored for 2.5 years. Sandsend (depth 11 m) community dynamics are
characterised by annual cycles of recruitment and mortality, but the declines unexpectedly do not correlate with periods of storms
and may be controlled by density dependent effects. A survey strategy must contain frequent sampling to monitor the large, rapid
changes. Maw Wyke (depth 45 m) fauna is diverse, but is structured overall by the polychaete Melinna cristata which occurs in
dense aggregations. The density of infauna is positively correlated with the number of Melinna . Analysis of Melinna population
structures suggests that the aggregations have long term stability, but spatial fluctuations pose difficulties for an ecosystem survey.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00246/35769/34282.pdf
Etude des mouvements calciques dans les hémocytes de l'huître creuse Crassostrea gigas : 1ères
approches expérimentales
Provedor de dados: 5
Autores: Aton, Emilie.
Les cultures de mollusques bivalves sont continuellement exposées à des variations de facteurs d'origine naturelle (variation de la
salinité et de température) ou anthropique (métaux lourds, HAP, phytosanitaires) susceptibles d'altérer les systèmes de défense des
mollusques bivalves. Ces altérations expliqueraient, dans certains cas, leur sensibilité vis à vis de certains pathoègnes marins et
pourraient, en partie, être à l'origine des épisodes de mortalité massive observés périodiquement chez des populations larvaires
d'huîtres et de moules. C'est pourquoi de nombreuses études concernant l'immunotoxicité des polluants sont actuellement en
cours. Le calcium est un second messager ubiquitaire connu pour assurer la transduction de très nombreux signaux...
Tipo: Text
Palavras-chave: Huître creuse; Crassostrea gigas; Hémocytes; Calcium; Transfert calcique; Impact polluant.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00032/14336/11615.pdf
Etude des mouvements calciques dans les hémocytes de l'huître creuse Crassostrea gigas lors de leur
immunostimulation : 1ères approches expérimentales
Provedor de dados: 5
Autores: Aton, Emilie; Cognard, C.; Renault, Tristan; Thomas-guyon, Hélène; Imbert, N.
Bivalve mollusc farms are continuously exposed to variations of factors either natural (variation of salinity and temperature) or
from man (heavy metals, HAP, phytosanitary) likely to alter the defence systems of bivalve molluscs. These alterations would
explain, in certain cases, their sensitivity vis-à-vis certain marine pathogens and could in part be at the source of the episodes of
massive mortalities seen periodically in oyster and mussel larval populations. That is why many studies concerning the
contaminants' immunotoxicity are currently in progress.
Tipo: Text
Palavras-chave: Polluant; Calicum; Hemocytes; Crassostrea gigas.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/acte-2855.pdf
A flow cytometric approach to study intracellular-free Ca2+ in Crassostrea gigas haemocytes
Provedor de dados: 5
Autores: Aton, Emilie; Renault, Tristan; Gagnaire, Beatrice; Thomas Guyon, Hélène; Cognard, C; Imbert, N.
Bivalve haemocytes are essential in defence mechanisms including phagocytosis. They also produce molecules including
hydrolytic enzymes and antimicrobial peptides that contribute to pathogen destruction. Although haemocyte activities have been
extensively studied, relatively little is known about the intracellular signalling pathways that are evoked during haemocyte
activation and especially the role of calcium.
Flow cytometry has been used for the first time to define the effect of cell
incubation in haemolymph and artificial sea water (ASW) on Pacific oyster, Crassostrea gigas, haemocytes. Cell viability,
enzymatic activities (esterases and amino peptidases), phagocytosis and granulocyte percentage were analysed. Viability and some
activities were...
Tipo: Text
Palavras-chave: Cellular activities; Fluo 3/AM; Calcium; Flow cytometry; Haemocytes; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-935.pdf
Integration and sharing of data on marine ecosystems.
Provedor de dados: 5
Autores: Auber, Arnaud; Delpech, Jean-paul.
Integration and data sharing on marine ecosystem constitute two major contributors to ecosystem management. In this report, we
present the different methods that have been used to integrate and share data in the context of Interreg IVA France (Channel) –
England projects. Identification of limits and barriers encountered within these projects may help to improve our capacity to lead
future projects, notably those involved in marine ecosystem management.
Tipo: Text
Palavras-chave: Accessibility; Data sharing; Quality of work; Reports; Websites.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00217/32848/31315.pdf
Regime Shift in an Exploited Fish Community Related to Natural Climate Oscillations
Provedor de dados: 5
Autores: Auber, Arnaud; Travers-trolet, Morgane; Villanueva, Ching-maria; Ernande, Bruno.
Identifying the various drivers of marine ecosystem regime shifts and disentangling their respective influence are critical tasks for
understanding biodiversity dynamics and properly managing exploited living resources such as marine fish communities.
Unfortunately, the mechanisms and forcing factors underlying regime shifts in marine fish communities are still largely unknown
although climate forcing and anthropogenic pressures such as fishing have been suggested as key determinants. Based on a
24-year-long time-series of scientific surveys monitoring 55 fish and cephalopods species, we report here a rapid and persistent
structural change in the exploited fish community of the eastern English Channel from strong to moderate dominance of
small-bodied...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00273/38466/36886.pdf
La pêche aux Iles Saint-Paule et Amsterdam
Provedor de dados: 5
Autores: Aubert De La Rue, E.
Introduction : - La France possède dans la partie méridionale de l'océan Indien, à peu près à mi-distance entre l'Afrique du Sud et
l'Australie, les deux petites îles de Saint-Paul et d'Amsterdam, qui sont parmi les régions les plus poissonneuses du globe. Malgré
leur grand isolement et les parages tempêtueux où elles se trouvent, de nombreuses générations de pêcheurs les ont fréquentées,
d'une façon plus ou moins régulière, depuis plus de cent ans. L'une de ces îles a même été le siège, à quelques reprises différentes,
de stations de pêche permanentes. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1932
URL: http://archimer.ifremer.fr/doc/1932/publication-5878.pdf
Trial of probiotics to prevent the vertebral column compression syndrome in rainbow trout
(Oncorhynchus mykiss Walbaum)
Provedor de dados: 5
Autores: Aubin, Joel; Gatesoupe, Joel; Labbe, Laurent; Lebrun, Luc.
Two probiotics were tested as alternative treatment to limit the prevalence of the vertebral column compression syndrome (VCCS)
in rainbow trout, compared with a preventive treatment with florfenicol. Either the antibiotic, or a lactic acid bacterium,
Pediococcus acidilactici, or a yeast, Saccharomyces cerevisiae var. boulardii, was introduced into experimental diets, which were
compared with the control diet without supplementation. The antibiotic caused some mortality during the first week after
treatment, likely because of the toxicity of the compound. However, this antibiotic treatment limited the occurrence of VCCS to
3%, vs. 13% of fish affected in the control group. Pediococcus acidilactici provided the same level of protection as the
antibiotic,...
Tipo: Text
Palavras-chave: Carnobacterium; Debaryomyces hansenii; Pseudomonas; Antibiotic; Lactic acid bacterium; Yeast; Spinal
deformities.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-752.pdf
Guide de mise en oeuvre de l'intensification écologique pour les systèmes aquacoles
Provedor de dados: 5
Autores: Aubin, Joel; Rey-valette, Helene; Mathe, Syndhia; Wilfart, Aurelie; Legendre, Marc; Slembrouck, Jacques; Chia,
Eduardo; Masson, G; Callier, Myriam; Blancheton, Jean-paul; Tocqueville, Aurélien; Caruso, Domenico; Fontaine, P.
Ce guide a été réalisé dans le cadre du projet de recherche pluridisciplinaire PISCEnLIT financé par l’Agence Nationale de la
Recherche (ANR, programme SYSTERRA). L’objectif était d’identifier des voies d’intensification écologique de l’aquaculture à
partir de cas d’étude diversifiés. Ce guide est le fruit d’une co-construction rassemblant des chercheurs de diverses disciplines
des sciences sociales et des sciences du vivant ainsi que des représentants d’institutions et d’organisations de producteurs dans le
domaine de l’aquaculture, en France et dans les pays partenaires (Brésil, Indonésie).
Tipo: Text
Palavras-chave: Intensification écologique; GUIDE; Systèmes aquacoles.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00177/28851/27333.pdf
Bilan des connaissances sur la cardine (Lepidorhombus whiffiagonis ). Etude du stock de Mer
Celtique.
Provedor de dados: 5
Autores: Aubin-ottonheimer, G.
This study presents the biology of the species Lepidorhombus whiffiagonis (ecology, nutrition, sexuality, growth weight and
length) and its exploitation with the balance of catches in North Atlantic and its fishing in Celtic Sea. Yield and fecundity per
recruit related to the fishing effort are estimated. The influence of the mesh size modifications is analyzed. The impact of
uncertainty on the values of the parameters modelling and individual variability within the growth is analyzed.
Tipo: Text
Palavras-chave: Growth; Stock assessment; Fishery management; Fishery biology; Synopsis.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/publication-1782.pdf
Subduction and Tectonics. Discussion on the Results of the IPOD Program in Active Margins
Provedor de dados: 5
Autores: Aubouin, J; Blanchet, R.
Since the advent of plate tectonics the active margins of the oceans have been studied according to a model whose basis is a piling
up of imbrications of oceanic material units, in front of the upper plate, forming a great tectonic accretionary prism. This model is
broadly the same for all the authors; it has been largely used for alpine-type or paleo-oceanic mountain chain, all around the
world. The authors have directly taken part in the drillings on western and eastern Pacific active margins (Legs 60 and 67) and
they have worked on the tectonics of alpine (paleo-oceanic) chains of the peri-mediterranean, peri-caribbean, and peripacific belts.
They compare the geological data acumulated from these tow direct sources. The tectonic constraints constraints...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00246/35700/34207.pdf
A Summary of Deep Sea Drilling Project Leg 67. Shipboard Results From the Mid-America Trench
Transect off Guatemala
Provedor de dados: 5
Autores: Aubouin, J; Van Huene, R; Azema, J; Blackinton, G; Carter, Ja; Coulbourn, W T; Cowan, D S; Curiale, Ja; Dengo, Ca;
Faas, Rw; Harrison, W; Hesse, R; Hussong, Dm; Ladd, Jw; Muzylev, N; Shiki, T; Thompson, Pr; Westberg, J.
The Middle America Trench off Guatemala was transected by 24-channel seismic-reflection surveys, seismic-refraction surveys,
and drilling with the Glomar Challanger . The drilling was doneat three sites on the oceanic Cocos plate and four sites on the
Caribbean plate. These plates converge at about 10 cm/yr as indicated by global plate reconstruction. On the oceanic Cocos plate a
basal chalk sequence of lower and middle Miocene age is overlain by a thin interval of abyssal clay. In contrast is the Cretaceous
to lower Miocene claystone sequence recovered only at a site 3 km landward of the trench axis where drilling penetrated the
hemipelagic slope deposits. A large amount of sediment along with ocean crust has been subducted during the present (Miocene
to...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00245/35671/34179.pdf
Contribution à l'étude des herbiers de Zostera noltii du Bassin d'Arcachon : Dynamique, production
et dégradation, macrofaune associée
Provedor de dados: 5
Autores: Auby, Isabelle.
This study aimed to characterize the ecology of the seagrass Zostera noltii in the Bassin d'Arcachon. These seagrasses, which
belong to the family of Potamogetonaceae occupy in the Bay for about three quarters of the area of intertidal areas. Despite their
large size and ecological importance, this grass never had previously be studied. This thesis deals with eelgrass populations
(distribution, growth, production and recycling) and the macrofauna associated with them (spatial and temporal variation of the
nature and structure of animal populations). In addition to this descriptive approach, this work has also helped to quantify the
participation of seagrass beds on the balance sheet of the organic matter in the Arcachon basin.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00044/15556/12945.pdf
Mesure de l'absorption des nutriments (Ammonium - Nitrate - Phosphate) par les thalles de
Gracilaria verrucosa de l'étang du Méjean
Provedor de dados: 5
Autores: Auby, Isabelle.
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00148/25956/24047.pdf
Evolution de la richesse biologique du Bassin d'Arcachon
Provedor de dados: 5
Autores: Auby, Isabelle.
The integrated study of the Arcachon Basin has several components. Some participants studied changes in the constraints on the
ecosystem, natural (weather, water and soil) and human (professional activities and tourism on the basin and its immediate
environment). Our contribution focuses, for its part, the assessment of the biological richness of the environment, ie to consider
the living compartment (animal and plant) within this ecosystem. This work has been to unite and to order the data on aquatic
flora and fauna populations of the Basin. When observations on a group were consistent enough to undertake comparisons across
time, we have attempted to characterize and explain its evolution over time. However, there are circumstances where this analysis
is...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00040/15144/12477.pdf
Biomass and species composition of macrophytes in Arcachon Bay and Prevost lagoon, with a
compilation of data of primary production in Arcachon Bay
Provedor de dados: 5
Autores: Auby, Isabelle; Bachelet, Guy; Labourg, Pierre Jean.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00259/37008/35505.pdf
Etat de la contamination du Bassin d'Arcachon par les insecticides et les herbicides sur la période
2005-2006. Impact environnemental
Provedor de dados: 5
Autores: Auby, Isabelle; Bocquene, Gilles; Quiniou, Francoise; Dreno, Jean-paul.
Within the framework of the study on cup oyster breeding in the Arcachon Basin (IFREMER's SURGIBA Programme,
co-financed by Europe, the Regional Council of Aquitaine, the Regional Council of Gironde and the Arcachon Basin's
inter-communal Syndicate), some pesticides have been researched in the main waterways and in the waters of several of the
Basin's zones (Figure 1), during the summer months (June to September) from 1999 to 2003 inclusive (Auby and Maurer, 2004).
The presence of a certain number of molecules, mainly from herbicides, was found in the waters and it has generally been possible
to identify their source. Certain substances come from agricultural uses or park maintenance; others are from nautical sources
(anti-fouling paint for protecting the...
Tipo: Text
Palavras-chave: France; Arcachon basin; Hydrology; Chlorpyfiros; Chlorpyfiros; Insecticide; Weedkiller; Contamination;
Marine environment.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-2398.pdf
Régression des herbiers de zostères dans le Bassin d’Arcachon : état des lieux et recherche des causes
Provedor de dados: 5
Autores: Auby, Isabelle; Bost, Charles-andré; Budzinski, Helene; Dalloyau, Sebastien; Desternes, Amandine; Belles, Angel; Trut,
Gilles; Plus, Martin; Pere, Caroline; Couzi, Laurent; Feigne, Claude; Steinmetz, Julien.
While they had previously presented a hight stability, unlike in many coastal sites worldwide, eelgrass beds (Zostera noltii and
Zostera marina) of Arcachon Bay have declined sharply since the 2000s. Various causes have been invoked to explain this
phenomenon: climate anomalies, disease, over-grazing by herbivorous birds, contamination by herbicides, mechanical destruction
during clam fishing. A multidisciplinary study was set up to study the possible effect of these factors, by putting into perspective
the history of the seagrass beds and the temporal evolution of these parameters. After a chapter dealing with recent trends
(2007-2010) of seagrasses in the Bay of Arcachon, the results relative to the various hypotheses are presented. These results
allow...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00054/16507/14018.pdf
Protocoles de suivi stationnel des herbiers à zostères pour la Directive Cadre sur l’Eau (DCE), Zostera
marina, Zostera noltii
Provedor de dados: 5
Autores: Auby, Isabelle; Dalloyau, Sébastien; Hily, Christian; Oger-jeanneret, Helene; Plus, Martin; Sauriau, Pierre-guy; Trut,
Gilles.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00072/18368/15941.pdf
Suivi hydrologie et phytoplancton des masses d'eau du bassin hydrographique Adour-Garonne en
2005-2010
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Barbier, Claire; Duval, Magali; Neaud-masson, Nadine; Plus, Martin; Rumebe,
Myriam; Tournaire, Marie-pierre; Trut, Gilles; Ryckaert, Mireille; Derrien, Annick; Margat, Sylvie; Schmitt, Anne; Charpentier,
Gabriel; Seugnet, Jean-luc; Thomas, Gerard; Guesdon, Stephane; Llevot, Gerard; Beaugrand, Philippe; Carrere, Christian; Michel,
Valérie; Petrau, Christian; Bariou, Jean; Landier, Pascal; Debinski, Olivier; Le Mao, André.
Ce rapport rend compte des résultats acquis entre 2005 et 2010 sur les paramètres hydrologiques et le phytoplancton, dans le cadre
des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
district Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en œuvre de la DCE. Ce document contient des résultats
concernant les éléments de qualité physico-chimique (oxygène dissous pour les deux types de masses d’eau, température et
transparence pour les masses d’eau côtières exclusivement) selon des méthodes présentées dans trois documents (Daniel, 2009 a et
b ; Daniel et Soudant, 2011), qui sont rapportées dans l’annexe 1 de ce rapport. Sont également inclues dans ce document les...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00069/18021/15553.pdf
Suivi « hydrologie » et « phytoplancton » des masses d'eau du bassin hydrographique Adour-Garonne
en 2008-2013
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Barbier, Claire; Ganthy, Florian; Maurer, Daniele; Gouriou, Laure; Rigouin, Loic;
Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Robert, Serge; Guesdon, Stephane; Derrien,
Annick; Chabirand, Jean-michel; Charpentier, Gabriel; Genauzeau, Sylvie; Schmitt, Anne; Geairon, Philippe; Grizon, James;
Seugnet, Jean-luc; Thomas, Gerard; Bechemin, Christian; Soudant, Dominique; Lamoureux, Alice; Llevot, Gerard; Beaugrand,
Philippe; Michel, Valerie; Dupin, Michel; Bariou, Jean; Landier, Pascal; Miguel, Véronique.
Ce rapport rend compte des résultats acquis entre 2008 et 2013 sur les paramètres hydrologiques et le phytoplancton, dans le cadre
des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
district Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en œuvre de la DCE. Ce document contient des résultats
concernant les éléments de qualité physico-chimique (oxygène dissous et nutriments pour les deux types de masses d’eau,
température et transparence pour les masses d’eau côtières exclusivement) selon des méthodes présentées dans une annexe de ce
rapport. Sont également inclues dans ce document les données d'évaluation de la qualité des masses d'eau vis-à-vis de l'indicateur
«...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00225/33615/32015.pdf
Suivi « hydrologie » et « phytoplancton » des masses d'eau du bassin hydrographique Adour-Garonne
en 2007-2012
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Barbier, Claire; Maurer, Daniele; Gouriou, Laure; Plus, Martin; Rigouin, Loic;
Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Derrien, Annick; Genauzeau, Sylvie; Schmitt,
Anne; Charpentier, Gabriel; Seugnet, Jean-luc; Grizon, James; Geairon, Philippe; Guilpain, Patrice; Thomas, Gerard; Guesdon,
Stephane; Chabirand, Jean-michel; Soudant, Dominique; Lamoureux, Alice; Llevot, Gerard; Beaugrand, Philippe; Michel,
Valérie; Petrau, Christian; Bariou, Jean; Landier, Pascal; Miguel, Valérie.
Ce rapport rend compte des résultats acquis entre 2007 et 2012 sur les paramètres hydrologiques et le phytoplancton, dans le cadre
des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
district Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en œuvre de la DCE. Ce document contient des résultats
concernant les éléments de qualité physico-chimique (oxygène dissous et nutriments pour les deux types de masses d’eau,
température et transparence pour les masses d’eau côtières exclusivement) selon des méthodes présentées dans quatre documents
(Daniel, 2009 a et b ; Daniel et Soudant, 2010, 2011), qui sont rapportées dans une annexe de ce rapport. Sont également inclues
dans...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00152/26281/24364.pdf
Suivi hydrologie et phytoplancton des masses d'eau du bassin hydrographique Adour-Garonne en
2003-2008
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Duval, Magali; Neaud-masson, Nadine; Plus, Martin; Rumebe, Myriam; Tournaire,
Marie-pierre; Trut, Gilles; Ryckaert, Mireille; Derrien, Annick; Genauzeau, Sylvie; Schmitt, Anne; Charpentier, Gabriel; Grizon,
James; Seugnet, Jean-luc; Thomas, Gerard; Llevot, Gérard; Beaugrand, Philippe; Carrere, Christian; Michel, Valérie; Petrau,
Christian; Bariou, Jean; Debinski, Olivier; Le Mao, André.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général l’atteinte, à l’horizon 2015, d’un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières et de transition (estuaires en particulier).
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14354/11640.pdf
Suivi hydrologie et phytoplancton des masses d'eau du bassin hydrographique Adour-Garonne en
2007
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Duval, Magali; Neaud-masson, Nadine; Plus, Martin; Rumebe, Myriam; Tournaire,
Marie-pierre; Trut, Gilles; Ryckaert, Mireille; Derrien, Annick; Margat, Sylvie; Schmitt, Anne; Charpentier, Gabriel; Seugnet,
Jean-luc; Thomas, Gerard; Llevot, Gerard; Beaugrand, Philippe; Carrere, Christian; Michel, Valerie; Petrau, Christian; Bariou,
Jean; Debinski, Olivier; Le Mao, André.
Ce rapport rend compte des résultats acquis en 2007 sur les paramètres hydrologiques et le phytoplancton, dans le cadre des
réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
district Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en œuvre de la DCE. Ce document contient des résultats
concernant les éléments de qualité physico-chimique (oxygène dissous et nutriments pour les deux types de masses d’eau,
température et turbidité pour les masses d’eau côtières exclusivement). Sont également inclues dans ce document les données
d'évaluation de la qualité des masses d'eau vis-à-vis de l'indicateur « phytoplancton » calculées par Soudant et Belin (2009), sur la
base des...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00214/32569/31036.pdf
Suivi « hydrologie » et « phytoplancton » des masses d'eau du bassin hydrographique Adour-Garonne
sur la période 2009-2014
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Meteigner, Claire; Ganthy, Florian; Maurer, Daniele; Gouriou, Laure; Rigouin,
Loic; Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Guesdon, Stephane; Derrien, Annick;
Chabirand, Jean-michel; Charpentier, Gabriel; Genauzeau, Sylvie; Schmitt, Anne; Geairon, Philippe; Grizon, James; Seugnet,
Jean-luc; Thomas, Gerard; Bechemin, Christian; Soudant, Dominique; Lamoureux, Alice; Beaugrand, Philippe; Noureau, Bruno;
Michel, Valérie; Dupin, Michel; Bariou, Jean; Landier, Pascal; Miguel, Véronique.
Ce rapport rend compte des résultats acquis entre 2009 et 2014 sur les paramètres hydrologiques et le phytoplancton, dans le cadre
des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
bassin Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en oeuvre de la DCE. Ce document contient des
résultats concernant les éléments de qualité physicochimique (oxygène dissous pour les deux types de masses d’eau, azote
inorganique dissous pour les masses d’eau côtières et les masses d’eau de transition peu turbides, température et transparence pour
les masses d’eau côtières exclusivement) selon des méthodes présentées dans trois documents (Daniel, 2009 a et b ; Daniel et
Soudant,...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39141/37696.pdf
Suivi « hydrologie » et « phytoplancton » des masses d'eau du bassin hydrographique Adour-Garonne
sur la période 2010-2015
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Meteigner, Claire; Ganthy, Florian; Maurer, Daniele; Gouriou, Laure; Rigouin,
Loic; Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Guesdon, Stephane; Derrien, Annick;
Chabirand, Jean-michel; Genauzeau, Sylvie; Schmitt, Anne; Geairon, Philippe; Grizon, James; Seugnet, Jean-luc; Thomas,
Gerard; Bechemin, Christian; Soudant, Dominique; Lamoureux, Alice; Beaugrand, Philippe; Noureau, Bruno; Michel, Valérie;
Dupin, Michel; Bariou, Jean; Landier, Pascal; Miguel, Véronique.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00355/46583/46391.pdf
Suivi « hydrologie » et « phytoplancton » des masses d'eau du bassin hydrographique Adour-Garonne
en 2006-2011
Provedor de dados: 5
Autores: Auby, Isabelle; D'Amico, Florence; Neaud-masson, Nadine; Rumebe, Myriam; Barbier, Claire; Duval, Magali;
Tournaire, Marie-pierre; Trut, Gilles; Plus, Martin; Maurer, Daniele; Ryckaert, Mireille; Derrien, Annick; Margat, Sylvie;
Schmitt, Anne; Charpentier, Gabriel; Seugnet, Jean-luc; Grizon, James; Geairon, Philippe; Guilpain, Patrice; Thomas, Gerard;
Guesdon, Stephane; Llevot, Gerard; Beaugrand, Philippe; Carrere, Christian; Michel, Valerie; Petrau, Christian; Bariou, Jean;
Landier, Pascal; Debinski, Olivier; Le Mao, André; Miguel, Valérie.
Ce rapport rend compte des résultats acquis entre 2006 et 2011 sur les paramètres hydrologiques et le phytoplancton, dans le cadre
des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du
district Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en œuvre de la DCE. Ce document contient des résultats
concernant les éléments de qualité physico-chimique (oxygène dissous pour les deux types de masses d’eau, température et
transparence pour les masses d’eau côtières exclusivement) selon des méthodes présentées dans trois documents (Daniel, 2009 a et
b ; Daniel et Soudant, 2011), qui sont rapportées dans une annexe de ce rapport. Sont également inclues dans ce document les...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00111/22193/19862.pdf
Etude des causes potentielles des mortalités dans les élevages de crevettes pénéides nord médocains en
2001
Provedor de dados: 5
Autores: Auby, Isabelle; Devault, Damien; Trut, Gilles; Cantin, Christian; Maurer, Daniele.
For fifteen years, northern Medoc hosts sites of Penaeus japonicus. The six farms, with a total area of 180 ha (95 ha water) are
supplied with water by canals connected to the Gironde estuary. Their normal total production is 11 tons per year, for an annual
national output of 25 tonnes. In 2001, the survival rate of postlarvae were particularly low (22% average) compared to previous
years, causing a decrease in production on all farms. A total of 4 tons of penaeid were harvested by farmers, about one third of
normal production. To explain this sudden drop in production, farmers have questioned the possibility of pollution of the water
feeding their marshes, suspecting especially the recent use of certain insecticides related to forestry and viticulture. A...
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00075/18671/16217.pdf
Etude des herbiers de Zostera noltii de l'étang du Vaccarès. Synthèse des résultats 1993 - 1995
Provedor de dados: 5
Autores: Auby, Isabelle; Grillas, Patrick.
Signalée pour la première fois en Camargue en 1975, dans les étangs inférieurs, Zostera noltii a colonisé le Vaccarès à partir du
début des années 1980. En 1984, les herbiers de zostères recouvraient déjà 3000 ha dans l’étang . A cette époque, ces plantes
colonisaient les zones de profondeur inférieure ou égales à 1,80 m, sauf dans le nord de l’étang, où elles se cantonnaient à des
profondeurs inférieures à 1,20 m. Par la suite, bien que la salinité ait d’abord graduellement puis drastiquement diminué dans
l’étang, les herbiers de zostères semblent s’être encore étendus Les objectifs de ce travail étaient de quatre ordres : 1. Analyser les
changements de biomasse et de composition spécifique des herbiers sur les trois stations de mesure depuis 1993. 2....
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00150/26078/24188.pdf
Schéma de Mise en Valeur de la Mer du Bassin d'Arcachon : Ressources biologiques exploitables
(invertébrés) Habitats et espèces présentant un intérêt particulier
Provedor de dados: 5
Autores: Auby, Isabelle; Labourg, Pierre Jean; De Montaudouin, Xavier.
Le Schéma de Mise en Valeur de la Mer appliqué au Bassin d'Arcachon doit préciser, entre autres, les mesures de protection du
milieu marin. Certaines ont déjà été prises lors de la révision récente du Schéma directeur en application des articles L 146-6 et R
146-1 du Code de l'Urbanisme, d'autres pourraient l'être pour compléter ces dernières. Un Schéma peut aussi prescrire des
sujétions particulières : "... si elles sont nécessaires à la préservation du milieu marin et littoral et particulièrement au maintien des
équilibres biologiques". La commission Eau et Milieu naturel a pris en compte ces différents aspects, notamment en terme de
ressources biologiques et de protection éventuelle d'espèces et d'habitats. Nous avons donc proposé d'effectuer des...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00152/26286/24369.pdf
Comparaison des capacités photosynthétiques des zostères naines de deux étangs méditerranéens :
Lagune de Thau et étang du Vaccarès.
Provedor de dados: 5
Autores: Auby, Isabelle; Levavasseur, Guy; Plus, Martin; Deslous Paoli, Jean-marc; Grillas, Patrick.
Zostera noltii colonise en Méditerranée des baies abritées et des lagunes présentant des conditions abiotiques (e.g. atténuation
lumineuse et salinité) très variées. Les zostères constituent des herbiers étendus et stables à Thau (Gerbal et Verlaque, 1995) qui
est une lagune profonde et bien connectée à la mer (salinité peu variable). Dans le Vaccarès, moins bien connecté à la mer, cette
espèce a présenté un développement important entre 1984 et 1996, alors que la salinité (moyenne annuelle) variait entre 30,1 et
4,8 (Grillas et Auby, 1996). L'objectif de ce travail était de préciser dans quelle mesure les conditions suboptimales (Tableau 1)
auxquelles sont soumises les zostères du Vaccarès affecte leur production. Les capacités photosynthétiques...
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00152/26287/24370.pdf
Etude de la reproduction de l'huître creuse dans le Bassin d'Arcachon
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele.
The Arcachon Basin is an environment particularly favorable to the reproduction of the Japanese oyster Crassostrea gigas,
introduced in France in 1970. An estimated 60 to 70% of oysters sold in France are native to the Bay of Arcachon.This is why
following the strong deficit of spatfall of 1998, a study was undertaken to determine whether this event was part of or not
fluctuations in 'natural' catchment. To do this, we had to identify the factors responsible for the variability of larval recruitment
and study their impact on the various stages of reproduction.The results of this study are based on analysis of historical data
(1985-2003) and the acquisition of new data during five breeding seasons, with very different intensities of recruitment (1999 to...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00040/15145/12480.pdf
Reproduction de l'huître creuse dans le Bassin d'Arcachon Année 2010
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Barbier, Claire; Cantin, Christian; Tournaire, Marie-pierre; Rumebe, Myriam; Trut,
Gilles; Simonnet, Bastien; Navarro, Romuald.
Each summer, the IFREMER laboratory of Arcachon monitors, in the scope of an agreement with the regional conchological
section of Arcachon (SRC), the reproduction of Pacific oysters in the Arcachon Bay. This monitoring aims to provide oyster
farmers with information necessary to the spat collecting: - dates and amount of spawn, - larval development speed, - presence of
the most evolved stages in the habitat (close to fixation). Reproduction is monitored from mid-June to mid-September, with
plankton being sampled four times a week on different representative sites. Oyster larvae at different stages are counted. At the
end of the reproduction period (September-October), larval recruitment on collectors is estimated via the counting of the spats
collected on...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00023/13389/10408.pdf
Reproduction de l'huître creuse dans le bassin d'Arcachon, Année 2006
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Cassam Chenai, Yoann; Tournaire, Marie-pierre; Neaud-masson, Nadine; Rumebe,
Myriam; Cantin, Christian; Debort, Henriette; Germain, Jean-marie; Navarro, Romuald.
Introduction: During each summer season, the IFREMER laboratory of Arcachon monitors, within the framework of the
agreement with the Arcachon- Aquitaine Shellfish Farming Regional Section (SRC), the reproduction of cup oysters in the
Arcachon basin. This monitoring has as its goal to furnish oyster farmers with the information needed to implement spat catches:
- dates and size of egg clutches, - larvae development rate, - presence in the environment of more evolved stages (close to
fixation). Reproduction was monitored between mid-June and mid-September, plankton was fished four times per week at the
various sites representative of the basin. Oyster larvae at various stages are enumerated there. At the end of the reproductive
season (September to...
Tipo: Text
Palavras-chave: Crassostrea gigas; Larvae collection; Spat oyster; Larvae development; Reproduction; Arcachon Bassin;
Ostreidae; Crassostrea Gigas; Bivalvia; Mollusca; Aquaculture; Naissain; Captage Larve; Developpement Larvaire; Maturation;
Reproduction.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-2216.pdf
Reproduction de l'huître creuse dans le Bassin d'Arcachon. Année 2012
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Connes, Coralie; Barbier, Claire; Rumebe, Myriam; Rigouin, Loic; Tournaire,
Marie-pierre; Simmonnet, Bastien; Navarro, Romuald.
Each summer, the IFREMER laboratory of Arcachon monitors, in the scope of an agreement with the Regional Conchological
Comity of Arcachon, the reproduction of Pacific oysters in the Arcachon Bay. This monitoring aims to provide oyster farmers
with information necessary to the spat collecting: - dates and amount of spawn, - larval development speed, - presence of the most
evolved stages in the habitat (close to fixation). Reproduction is monitored from June to September, with plankton being sampled
four times a week on different representative sites. Oyster larvae at different stages are counted. At the end of the reproduction
period (September-October), larval recruitment on collectors is estimated via the counting of the spats collected, at various...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00118/22920/20740.pdf
Etude des causes du faible captage de naissain d'huitre creuse dans le Bassin d'Arcachon en 1998
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Masson, Nadine; D'Amico, Florence; Deynu, Danielle; Tournaire, Marie-pierre; Trut,
Gilles; Cantin, Christian; Pellier, Claude.
Après une quinzaine d'années pendant lesquelles le captage de l'huître creuse a été normal ou pléthorique dans le Bassin
d'Arcachon, la saison 1998 a donné de très faibles résultats. Plusieurs hypothèses ont été émises pour expliquer ce déficit :
conditions climatiques et hydrologiques exceptionnelles, manque de nourriture pour les larves, maladie, contamination du milieu
ayant eu un impact sur les larves ou sur leur nourriture. Chacune de ces hypothèses a été étudiée, en reprenant les données de 1998
lorsqu'elles étaient disponibles, et en acquérant l'ensemble des données nécessaires à l'explication du phénomène au cours de la
saison de reproduction 1999.
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00080/19166/16761.pdf
Etude des causes du faible captage de naissain d'huître creuse dans le bassin d'Arcachon en 1998 Annexes
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Masson, Nadine; D'Amico, Florence; Deynu, Danielle; Tournaire, Marie-pierre; Trut,
Gilles; Cantin, Christian; Pellier, Claude.
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00080/19107/16702.pdf
Etude de la reproduction de l'huitre creuse dans le Bassin d'Arcachon - Année 2001
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Masson, Nadine; Durand, Nathalie; Sautour, Benoit; Taris, Nicolas; D'Amico,
Florence; Guillard, Fabien; Guegen, Cathy; Trut, Gilles; Cantin, Christian; Pellier, Claude.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00083/19395/16988.pdf
Reproduction de l'huître creuse dans le Bassin d'Arcachon. Année 2014
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Passoni, Sarah; Heroin, Debora; Rigouin, Loic; Meteigner, Claire; Perriere-rumebe,
Myriam; Tournaire, Marie-pierre; Simonnet, Bastien; Navarro, Romuald.
Each summer, the IFREMER laboratory of Arcachon monitors, in the scope of an agreement with the Regional Conchological
Comity of Arcachon, the reproduction of Pacific oysters in the Arcachon Bay. This monitoring aims to provide oyster farmers
with information necessary to the spat collecting: - dates and amount of spawn, - larval development speed, - presence of the most
evolved stages in the habitat (close to fixation). Reproduction is monitored from June to September, with plankton being sampled
four times a week on different representative sites. Oyster larvae at different stages are counted. At the end of the reproduction
period (September-October), larval recruitment on collectors is estimated via the counting of the spats collected, at various...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00243/35451/33980.pdf
Mise au point d'une nouvelle méthode de suivi de la reproduction de l'huître creuse. Comparaison
avec la méthode traditionnelle
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Valvason, Marie-laure; Guegen, Cathy; Guillard, Fabien.
Ce document décrit une nouvelle méthode d'échantillonnage quantitatif des larves d'huîtres dans le Bassin d'Arcachon et présente
les résultats des dénombrements des différents stades larvaires à partir de l'utilisation des méthodes ancienne et nouvelle.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00079/19027/16605.pdf
Reproduction de l'huître creuse dans le Bassin d'Arcachon Année 2008
Provedor de dados: 5
Autores: Auby, Isabelle; Maurer, Daniele; Vignon, Alan; Defenouillere, Pauline; Tournaire, Marie-pierre; Latry, Arnaud;
Neaud-masson, Nadine; Cantin, Christian; Debort, Henriette; Navarro, Romuald; Simonnet, Bastien.
Each summer, the IFREMER laboratory of Arcachon monitors, in the scope of an agreement with the regional conchological
section of Arcachon (SRC), the reproduction of Pacific oysters in the Arcachon Bay. This monitoring aims to provide oyster
farmers with information necessary to the spat collecting: - dates and amount of spawn, - larval development speed, - presence of
the most evolved stages in the habitat (close to fixation). Reproduction is monitored from mid-June to mid-September, with
plankton being sampled four times a week on different representative sites. Oyster larvae at different stages are counted. At the
end of the reproduction period (September-October), larval recruitment on collectors is estimated via the counting of the spats
collected on...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00023/13383/10404.pdf
Identification des composants d'une substance dénommée localement "liga" se déposant sur certains
engins de pêche au large de Saint Jean de Luz
Provedor de dados: 5
Autores: Auby, Isabelle; Neaud-masson, Nadine.
Ce rapport rend compte de la composition d'une matière qui se dépose à certaines saisons sur les engins de pêche des
professionnels de la côte basque.
Tipo: Text
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00076/18681/16231.pdf
Angiospermes des côtes françaises Manche-Atlantique. Propositions pour un indicateur DCE et
premières estimations de la qualité
Provedor de dados: 5
Autores: Auby, Isabelle; Oger-jeanneret, Helene; Sauriau, Pierre-guy; Hily, Christian; Barille, Laurent.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14358/11646.pdf
Etude des peuplements de deux marais des Olonnes en vue d'une caractérisation écologique
Provedor de dados: 5
Autores: Auby, Isabelle; Prunier, Dominique.
In 1982-83, two fishponds situated in the North of Sables d'Olonne were the object of monitoring of the physico-chemical
parameters and of the populations of macrophytes (seaweeds and phanerogams) and invertebrate macrofauna. This report presents
the obtained results and considerations on the functioning of these systems.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00075/18662/16211.pdf
Suivi stationnel (2007-2015) de l'herbier de zostères naines (Zostera noltei) et calcul de l’indicateur «
Angiospermes » (2015) dans la masse d'eau côtière FRFC09 – Lac d'Hossegor
Provedor de dados: 5
Autores: Auby, Isabelle; Rigouin, Loic; Ganthy, Florian; Gouriou, Laure.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00343/45451/45018.pdf
Suivi stationnel (2007-2014) de l'herbier de zostères naines (Zostera noltei) et calcul de l’indicateur «
Angiospermes » (2014) dans la masse d'eau côtière FRFC09 – Lac d'Hossegor
Provedor de dados: 5
Autores: Auby, Isabelle; Rigouin, Loic; Ganthy, Florian; Heroin, Debora; Sanchez, Florence.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre entre 2007 et 2014 et son classement écologique au sens de la
DCE pour cet élément de qualité dans la masse d'eau « Lac d’Hossegor ».
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38539/37057.pdf
Suivi stationnel (2006-2015) des herbiers de zostères (Zostera noltei et Zostera marina) et calcul de
l’indicateur « Angiospermes » (2015) dans la masse d'eau côtière FRFC06 – Arcachon amont - Bassin
Hydrographique Adour-Garonne Provedor de dados: 5
Autores: Auby, Isabelle; Rigouin, Loic; Trut, Gilles; Oger-jeanneret, Helene; Ganthy, Florian; Trut, Florence; Gouriou, Laure;
Bujan, Stéphane; Devaux, Ludovic; Gouillieux, Benoît; Dalloyau, Sébastien; Feigne, Claude.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00345/45575/45185.pdf
Protocoles de suivi stationnel des herbiers à zostères pour la Directive Cadre sur l’Eau (DCE) Zostera
marina - Zostera noltei. Version 2
Provedor de dados: 5
Autores: Auby, Isabelle; Sauriau, Pierre-guy; Oger-jeanneret, Helene; Hily, Christian; Dalloyau, Sebastien; Rollet, Claire; Trut,
Gilles; Fortune, Mireille; Plus, Martin; Rigouin, Loic.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00186/29685/28059.pdf
Réservoirs de Lanton : Bilan écologique. Propositions d’aménagement
Provedor de dados: 5
Autores: Auby, Isabelle; Thimel, Anne.
This report deals with fishponds located on the eastern shore of the Bassin d'Arcachon (Lanton tanks), which are included in a
complex of former salt marshes. An ecological assessment of wetlands (land and water) was conducted in 1990. This assessment
relates to the hydro-sedimentary marshes, and aquatic and terrestrial flora. Different scenarios of domain have been proposed,
based on expected features: favoring of birds or fish fauna.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00075/18664/16213.pdf
Suivi biologique de quatre marais saumâtres en Loire atlantique (1985-1987)
Provedor de dados: 5
Autores: Auby, Isabelle; Thimel, Anne.
In 1985-1987, after works of refitting to improve their functioning, four fishponds situated in Loire atlantique were monitored
(physico-chemical parameters, populations of macrophytes (seaweeds and phanerogams) and invertebrate macrofauna. This report
presents the obtained results.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00075/18663/16212.pdf
Suivi stationnel de l'herbier de zostères naines (Zostera noltei) de la Masse d'eau côtière FRFC09 –
Lac d'Hossegor - Bassin Hydrographique Adour-Garonne - 2007-2012
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre depuis 2007 pour cet élément de qualité dans la masse d'eau "Lac
d’Hossegor
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00148/25942/24025.pdf
Suivi stationnel de l'herbier de zostères naines (Zostera noltii) de la Masse d'eau côtière FRFC09 - Lac
d'Hossegor - District Hydrographique Adour-Garonne - 2007-2008-2009
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET).
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00032/14357/11643.pdf
Suivi stationnel des herbiers de zostères (Zostera noltii et Zostera marina) de la Masse d'eau côtière
FRFC06 - Arcachon amont - District Hydrographique Adour-Garonne - 2006-2007-2008-2009
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Barbier, Claire; Bujan, Stephane; Cordier, Marie-ange.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET).
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00032/14356/11642.pdf
Echantillonnage des sites de référence DCE pour les paramètres "faune invertébrée benthique" et
"végétation" - District hydrographique Adour-Garonne
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Blanchet, Hugues; Gouillieux, B; Lavesque, N; Pothier, A.
Directive 2000/60/CE (Directive Cadre sur l'Eau - DCE) establishes a new framework for a community policy in the field of
water. It calls for result, namely achieving, by the end of 2015, good ecological and chemical state of underground and surface
water, including coastal and transition (estuary) water. In order to evaluate the ecological state of a mass of water (ME), the DCE
directive introduces the notion of "deviation" from a benchmark situation. The reference values, that can be considered as the
benchmark level for a very good ecological state, have to be established according to type of ME and per biological quality
element (phytoplankton, diatoms, macrophytes, macro-invertebrates and fishes) To do this, a network of reference sites has been
set...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/rapport-3757.pdf
Suivi stationnel de l'herbier de zostères naines (Zostera noltii) de la Masse d'eau côtière FRFC09 - Lac
d'Hossegor - District Hydrographique Adour-Garonne - 2007-2008
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Dalloyau, Sebastien.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET).
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14359/11649.pdf
Réseau hydrologique du Bassin d'Arcachon - Synthèse des résultats 1988-1997
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; D'Amico, Florence; Beliaeff, Benoit.
Depuis 1988, le Bassin d'Arcachon fait l'objet d'un suivi hydrologique concernant 8 stations réparties sur l'ensemble de la baie.
L'échantillonnage est réalisé une fois par semaine, aux alentours de la mi journée, alternativement à l'étale de basse mer (par fort
coefficient) et à l'étale de haute-mer (par faible coefficient). Différents paramètres physiques, chimiques et biologiques sont
mesurés : température, salinité, matière en suspension, silicate, nitrate, ammonium, phosphate, chlorophylle a et phéopigments.
Pour l'ensemble de ces paramètres, quatre niveaux de variabilité sont analysés : spatiale, tidale, saisonnière et inter-annuelle, en
utilisant des modèles linéaires mêlant facteurs fixes à modalités qualitatives et covariables quantitatives...
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00081/19201/16796.pdf
Hydrocarbures Aromatiques Polycycliques (HAP) dans les huîtres du Bassin d'Arcachon.
Comparaison avec les teneurs mesurées dans les autres masses d'eau du bassin Adour Garonne.
Réflexions établies sur la base de l'exploitation des données RNO, ROCCH, DCE
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Gouriou, Laure; Oger-jeanneret, Helene.
Ce document fait le point sur l'évolution des teneurs en HAP dans les huîtres de la côte atlantique, entre la Charente et les
Pyrénées atlantiques, mesurées dans le cadre des réseaux de surveillance chimique de l'Ifremer. Les valeurs mesurées sont
comparées avec les normes sanitaires en vigueur.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00167/27779/25968.pdf
Suivi stationnel des herbiers de zostères (Zostera noltii et Zostera marina) de la Masse d'eau côtière
FRFC06 - Arcachon amont - District Hydrographique Adour-Garonne - 2006-2007-2008
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Plus, Martin; Vignon, Alan; Bujan, Stephane.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Pour évaluer l’état écologique d’une
Masse d'Eau (ME), la DCE utilise la notion d’écart par rapport à une situation de référence. Les valeurs de référence, que l’on
peut considérer comme niveau étalon du "très bon état écologique", ont été établies par type de ME et par élément de qualité
biologique (phytoplancton, macrophytes (macroalgues et phanérogames marines)), faune macro-invertébrée et poissons...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14360/11650.pdf
Suivi stationnel des herbiers de zostères (Zostera noltei et Zostera marina) et calcul de l’indicateur «
angiospermes» de la Masse d'eau côtière FRFC06 – Arcachon amont - Bassin Hydrographique
Adour-Garonne - 2006-2014
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Rigouin, Loic; Ganthy, Florian; Oger-jeanneret, Helene; Heroin, Debora; Gouriou, Laure;
Bujan, Stephane; Devaux, Ludovic.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre entre 2007 et 2014 et son classement écologique au sens de la
DCE pour cet élément de qualité dans la masse d'eau « Arcachon amont ».
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38540/37058.pdf
Suivi stationnel des herbiers de zostères (Zostera noltei et Zostera marina) de la Masse d'eau côtière
FRFC06 – Arcachon amont - - Bassin Hydrographique Adour-Garonne - 2006-2012
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Rigouin, Loic; Oger-jeanneret, Helene; D'Amico, Florence; Duval, Magali; Gouriou, Laure;
Rumebe, Myriam; Plus, Martin; Bujan, Stephane.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre depuis 2006 pour cet élément de qualité dans la masse d'eau
"Arcachon amont".
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00146/25695/23767.pdf
Suivi stationnel des herbiers de zostères (Zostera noltei et Zostera marina) et calcul de l’indicateur «
angiospermes» de la Masse d'eau côtière FRFC06 – Arcachon amont - - Bassin Hydrographique
Adour-Garonne - 2006-2013
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Rigouin, Loic; Oger-jeanneret, Helene; D'Amico, Florence; Gouriou, Laure; Trut, Florence;
Rumebe, Myriam; Bujan, Stephane; Gouilleux, Benoit.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Pour évaluer l’état écologique d’une
Masse d'Eau (ME), la DCE utilise la notion d’écart par rapport à une situation de référence. Les valeurs de référence, que l’on
peut considérer comme niveau étalon du "très bon état écologique", ont été établies par type de ME et par élément de qualité
biologique (phytoplancton, macrophytes (macroalgues et phanérogames marines), faune macro-invertébrée benthique et
poissons...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00201/31202/29601.pdf
Suivi stationnel (2007-2013) de l'herbier de zostères naines (Zostera noltei) et calcul de l’indicateur «
Angiospermes » (2013) dans la Masse d'eau côtière FRFC09 – Lac d'Hossegor
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Rigouin, Loic; Oger-jeanneret, Helene; Sanchez, Florence; De Casamajor, Marie-noelle;
Lamouroux, Mélina.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre entre 2007 et 2013 et son classement écologique au sens de la
DCE pour cet élément de qualité dans la masse d'eau « Lac d’Hossegor ».
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00195/30651/29119.pdf
Suivi stationnel de l'herbier de zostères naines (Zostera noltii) de la Masse d'eau côtière FRFC09 - Lac
d'Hossegor - District Hydrographique Adour-Garonne - 2007
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Vignon, Alan.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre en 2007 dans la masse d'eau « Lac d’Hossegor ».
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00214/32571/31039.pdf
Suivi stationnel des herbiers de zostères (Zostera noltii et Zostera marina) de la Masse d'eau côtière
FRFC06 – Arcachon amont - District Hydrographique Adour-Garonne - 2007
Provedor de dados: 5
Autores: Auby, Isabelle; Trut, Gilles; Vignon, Alan; Vignon, Alan; Bujan, Stephane.
La Directive Cadre sur l’Eau 2000/60/CE établit un nouveau cadre pour une politique communautaire dans le domaine de l’eau.
Elle fixe comme objectif général d’atteindre, à l’horizon 2015, un bon état écologique et chimique des masses d’eau souterraines
et de surface, ces dernières incluant les eaux côtières (MEC) et les eaux de transition (MET). Dans ce cadre, un certain nombre
d'éléments de qualité sont suivis, dont l'élément de qualité "Angiospermes" dans les masses d'eau où les herbiers de zostères sont
présents. Ce rapport contient les résultats du suivi mis en oeuvre en 2007 dans la masse d'eau « Arcachon amont ».
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00214/32570/31038.pdf
Infragravity waves in the deep ocean: An upward revision
Provedor de dados: 5
Autores: Aucan, Jerome; Ardhuin, Fabrice.
Ocean infragravity waves are surface gravity waves with periods of several minutes and corresponding wavelengths of up to tens
of kilometers. When propagating freely in the deep ocean, these waves are typically small, several centimeters at most, so they
have been seldom studied. In the context of future wide-swath altimetry missions, these waves need to be better quantified as they
have wavelengths that will be resolved by such instruments. Here, we analyze the global climatology and variability of
infragravity waves in the deep ocean using data from over 40 open ocean locations, with depths larger than 2000 m. We show that
typical infragravity wave heights are higher than previously estimated, with winter-averaged values up to 11 mm off the U. S.
West...
Tipo: Text
Palavras-chave: Infragravity; SWO.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00166/27753/25942.pdf
The penetration of the Northern Current over the Gulf of Lions (Mediterranean) as a downscaling
problem
Provedor de dados: 5
Autores: Auclair, F; Marsaleix, P; Estournel, C.
Coastal shelf models suffer from the difficulty of specifying both the initial field and the external circulation at the open boundary.
Only basin scale models can have the right space-time variability to routinely provide such information. Do facto, such models
have however a coarser resolution than the coastal model and the downscaling of the circulation to the high resolution grid is
biased. Indeed the models are not necessarily based on the same physics and the interactions of the general circulation with the
topography, in particular over the shelf break region, arc generally not correctly represented on the large-scale grid. Studying the
response of the Northern Current to the atmospheric forcing in the region of Marseille (France) and its...
Tipo: Text
Palavras-chave: Courant Nord; Golfe du Lion; Initialisation variationnelle; Cascade d’échelles; Talus continental; Northern
Current; Gulf of Lions; Variational initialization; Downscaling; Continental shelf break.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43330/42897.pdf
Processus de métallogénèse dans les amas sulfurés océaniques
Provedor de dados: 5
Autores: Auclair, Gilles.
Quantitative analysis of trace elements repartition in hydrothermal sulfide minerals has required a development in the method of
microprobe analysis. Large investigations on the microprobe analysis conditions (reproducibility, mineral resistance,
homogeneity, standards, background measurements, electron beam intensity, accelerating voltage and counting time) allow an
improvement of the signal/background ratio during analysis of Se, As, Co, Cd and Ag in chalcopyrite, pyrite, sphalerite,
isocubanite and pyrrhotite. Then, a minimal exploitation value has been defined for each element in each sulfide mineral with an
analytical accuracy greater than 10%. These values vary from 200 ppm for the cobalt in chalcopyrite and sphalerite to 600 ppm for
the selenium in...
Tipo: Text
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00034/14500/11852.pdf
Développement durable de l’aquaculture dans le delta du Mékong : Quelle place pour la télédétection
dans le projet pluridisciplinaire GAMBAS de la Communauté Européenne ?
Provedor de dados: 5
Autores: Auda, Yves; Populus, Jacques; Blasco, F.
GAMBAS est un programme de la Commission Européenne de recherche sur le développement durable de l'aquaculture dans le
delta du Mékong. La pluridisciplinarité des équipes impliquées dans ce programme a permis de cerner précisément l'impact de
l'aquaculture sur l'écosystème « mangrove ». Dans cette action, la télédétection a joué un rôle fédérateur des connaissances
acquises au cours des quatre années de collaboration franco-vietnamienne (2001-2004). Les données botanique, d 'écologie
aquatique et de socio-économie collectées dans une quarantaine de stations réparties dans deux provinces (Camau et TraVinh)
sont analysées conjointement grâce au lien spatial assuré par la télédétection. Plus précisément, une zonation écologique, un indice
de confinement ...,...
Tipo: Text
Palavras-chave: Mangrove; Télédétection; Mékong(Vietnam).
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00197/30863/29231.pdf
Stratégie d'utilisation de différentes espèces animales par le parasite Marteilia refringens pour
assurer son cycle biologique
Provedor de dados: 5
Autores: Audemard, Corinne.
Au cours des trente dernières années, la production française d 'huître plate Ostrea edulis est passée de 30 000 tonnes par an à
seulement 1 500 tonnes actuellement. Le parasite de la glande digestive de l'huître plate, Marteilia refringens, est en partie
responsable de cette chute de production. La gestion des risques liés au développement de cette maladie en zone endémique,
nécessite la mise en évidence des compartiments fonctionnels de ce cycle parasitaire. Les travaux antérieurs ont montré que le
cycle de M. refringens était vraisemblablement hétéroxène, cependant cette hypothèse n'avait jamais pu être démontrée, limitant
cette gestion. La recherche d'hôtes de M. refringens a pu être réalisée par l'application d'outils de biologie moléculaire (PCR et...
Tipo: Text
Palavras-chave: Pathologie des mollusques; Marteilia refringens; Ostrea edulis; Paracartia grani; Cycle de vie; Outils de biologie
moléculaire; Modèle d'étude.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00107/21850/19440.pdf
Needle in a haystack: involvement of the copepod Paracartia grani, in the life-cycle of the oyster
pathogen Marteilia refringens
Provedor de dados: 5
Autores: Audemard, Corinne; Le Roux, Frédérique; Barnaud, Antoine; Collins, Catherine; Sautour, B; Sauriau, Pierre-guy; De
Montaudouin, X; Coustau, C; Combes, C; Berthe, Franck.
Marteilia refringens is a major pathogen of the European flat oyster, Ostrea edulis Linnaeus. Since its description, the lifecycle of
this protozoan parasite has eluded discovery. Attempts to infect oysters experimentally have been unsuccessful and led to the
hypothesis of a complex life-cycle involving several hosts. Knowledge of this life-cycle is of central importance in order to
manage oyster disease. However, the exploration of M. refringens life-cycle has been previously limited by the detection tools
available and the tremendous number of species to be screened in enzootic areas. In this study, these two restrictions were
circumvented by the use of both molecular detection tools and a mesocosm with low biodiversity. Screening of the entire fauna
of...
Tipo: Text
Palavras-chave: Experimental transmission; In situ hybridization; PCR; Paracartia grani; Ostrea edulis; Marteilia refringens.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-2778.pdf
Pipetman et bottes en caoutchouc à la recherche d'hôte(s) de Marteilia refringens
Provedor de dados: 5
Autores: Audemard, Corinne; Le Roux, Frédérique; Sauriau, Pierre-guy; Sautour, Benoît; Combes, C.; Coustau, C.; Blachier,
Philippe; Berthe, Franck.
Over the last thirty years, the French production of flat oyster Ostrea edulis dropped from15,000 tons/year to 1,500 tons. Marteilia
refringens, a parasite of the flat oyster's digestive gland, is partly responsible for this drop. The fight against this pathogen agent
requires a better knowledge of its parasitic cycle. The main hypothesis is the existence of a heteroxenous cycle, that is to say a
cycle involving more than one host. However, for thirty years this or these hosts have not been found, and the cycle of Marteilia
refringens remains unknown.
Tipo: Text
Palavras-chave: Claires ostréicoles; Parasite; Détection; Biologie moléculaire; Marteilia refringens.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3272.pdf
Infection dynamics of Marteilia refringens in flat oyster Ostrea edulis and copepod Paracartia grani
in a claire pond of Marennes-Oleron Bay
Provedor de dados: 5
Autores: Audemard, Corinne; Sajus, Marie-céline; Barnaud, Antoine; Sautour, Benoît; Sauriau, Pierre-guy; Berthe, Franck.
The protozoan parasite Marteilia refringens has been partly responsible for the severe decrease in the production of the European
flat oyster Ostrea edulis Linnaeus in France since the 1970s. The calanoid copepod Paracartia grani Sars was recently found to be
a host for M refringens in French shallow-water oyster ponds ('claires'). This study reconsidered M refringens transmission
dynamics in the light of this finding, taking into account not only oyster infection dynamics and environmental factors but also
data concerning the copepod host. P. grani population dynamics in the claire under study revealed that this species is the dominant
planktonic copepod in this confined ecosystem. During winter, M refringens overwintered in O. edulis, with P. grani...
Tipo: Text
Palavras-chave: Claire pond; Infection dynamics; Paracartia grani; Ostrea edulis; Marteilia refringens.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-2858.pdf
Raman amplification in an optically high-powered data link dedicated to a 10 km long extension for
submarine cabled observatories
Provedor de dados: 5
Autores: Audo, F.; Perhirin, Steven; Quintard, V.; Guegan, Matthieu; Perennou, A.; Auffret, Yves.
We describe a quasi-all-optical extension dedicated to simplifying the deployment of submarine cabled observatories. Based on
power-over-fiber technologies, high power supply and data are both transmitted in one optical fiber of a few kilometers in length.
We study the Raman amplification on the down-and up-stream data in the static regime with the high optical power varying from
100 mW to 4 W over a 10 km long single-mode optical fiber. We focus on the data optical budget and signal to noise ratio
dependence with respect to the high optical power value and the data optical wavelength. We also present the transmission quality
in the dynamic regime of this quasi-all-optical extension.
Tipo: Text
Palavras-chave: Optical fiber network; Optical power supply; Power-over-fiber; Raman scattering; Optical communication.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00146/25707/24035.pdf
Cartographie des populations de laminaires des côtes françaises de la manche orientale
Provedor de dados: 5
Autores: Audoin, J; Perez, René.
Il y a plus de cinquante ans, certains océanographes constataient avec étonnement qu'il n'existait pas de carte indiquant la
répartition de la flore marine sur les côtes de France. Malgré les excellents travaux de JOUBIN dans la région de Roscoff, ceux de
DAVY DE VIRVILLE (presqu'île de Quiberon), les patientes recherches de FLOC'H autour de l'archipel de Molène et celles de
DIZERBO (île d'Ouessant), les nombreuses plongées en scaphandre autonome de DRACH et les études de PERES, PICARD,
MOLINIER en Méditerranée, les choses n'ont guère changé. Nos connaissances sur la localisation et l'étendue des champs
d'algues restent, en effet, extrêmement limitées, surtout en ce qui concerne les peuplements qui n'émergent jamais. Ce fait est
d'autant plus regrettable...
Tipo: Text
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-6999.pdf
Region des pays de la Loire, Comite régional de la recherche, Rapport du groupe de travail "Mer"
Provedor de dados: 5
Autores: Audouin, J.
L'enjeu visé par les recherches menées dans la région des pays de la Loire sur des sujets relevant du domaine de la mer est de
contribuer au développement de la pêche et des cultures marines. Il semble que l'on tende à une amélioration des conditions
d'exercice de celle-ci plus qu'à une augmentation des apports. Quoi qu'il en soit, afin que le lecteur puisse avoir à sa disposition
des éléments lui permettant d'apprécier l'importance relative de la pêche et des cultures marines dans cette région nous avons fait
figurer, en annexe 4 à ce rapport, des données descriptives concernant : - Les flotilles et activités halieutiques : - importance des
moyens de production - caractéristique techniques des moyens de production tonnage - puissance - longueur - âge -...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00046/15715/13117.pdf
Aspects techniques des écloseries de Homards : production des post-larves et des juvéniles
Provedor de dados: 5
Autores: Audouin, Jacques.
Some aspects of the biology and of the ecology of larvae and post-larvae of lobster (Homarus sp) are summarized in order to
illustrate the purposes of retocking trials carried out on each side of the Atlantic Ocean. Canadian and American experiments are
analysed : the conclusions that can be drawn as well as those that cannot be drawn from these experiments are discussed. Present
methods of rearing used in U.S.A., Canada and France, and the main problems (prevention of cannibalism, nutrition, diseases,
etc.) are discussed. Results of American and French research carried out in order to obtain animals witch special morphological
characteristics are given. These animals could be utilised for assessing the impact of restocking attempts
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-6045.pdf
Hydrologie de l'étang de Thau
Provedor de dados: 5
Autores: Audouin, Jacques.
The Thau Lagoon, a lagoon that stretches over 7 500 ha, used to be connected to the sea via "graus" (channels) that are now
closed. During the 17th century, the canals were dug that provide access to the Mediterranean Sea at Sète. Their width and depth,
modified several times, reach 60 m and 9 m, respectively. It is important to understand how these modifications changed the
hydrology of the Thau Lagoon....
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/1962/publication-4244.pdf
La mytiliculture en Baie de l'Aiguillon
Provedor de dados: 5
Autores: Audouin, Jacques.
Plusieurs auteurs, en particulier Faideau, Bluteau, Lambert, Dubreuil, etc... ont déjà donné de nombreux détails sur la
mytiliculture et sur les bouchots à moules de la Baie de l'Aiguillon. Afin que cette note donne une vue d'ensemble sur la
mytiliculture, nous avons été amenés à reprendre et à résumer les données exposées par eux. Nous avons, en outre, ajouté certains
détails de la technique employée par les boucholeurs. Nous nous sommes efforcés d'apprécier l'évolution qui s'est manifestée
depuis une trentaine d'années. Cette étude comprend deux parties principales : Origine et forme des bouchot - Mode
d'exploitation.
Tipo: Text
Palavras-chave: Mytiliculture; Baie Aiguillon; Histoire; Bouchot; Croissance; Moule.
Ano: 1954
URL: http://archimer.ifremer.fr/doc/00003/11464/8024.pdf
Première Thèse : Hydrologie de l'étang de Thau
Provedor de dados: 5
Autores: Audouin, Jacques.
PRÉLIMINAIRES : Appelé à faire des recherches sur les poissons et les mollusques des étangs méditerranéens et les possibilités
qu'offrait leur exploitation, j'ai été amené à définir les caractéristiques physico-chimiques des eaux qui constituent leur habitat,
L'intérêt d'une telle étude m'est apparu dès le début, lorsque la bibliographie m'a montré que, si un certain nombre de questions
biologiques concernant la faune et la flore avaient été abordées, aucune étude générale du milieu hydrologique n'avait encore été
faite. C'est donc vers les conditions météorologiques, courantométriques, hydrologiques que j'ai orienté mes recherches,
poursuivies pendant cinq années consécutives de 1955 à 1959 grâce aux moyens matériels mis à ma disposition par l'Institut...
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/00060/17090/14603.pdf
Notes sur l’ostréiculture aux États-Unis
Provedor de dados: 5
Autores: Audouin, Jacques.
La présente note n'émane aucunement d'un savant ou d'un spécialiste, mais d'un profane. Il ne faut donc pas y chercher
d'explications scientifiques, telles qu'on en trouvera, au contraire, dans la documentation rapportée par lui et indiquée en fin de la
présente note. Celle-ci est uniquement le compte rendu de choses vues par l'auteur ou d'explications à lui données lors d'un séjour
d'assez longue durée aux Etats-Unis, motivé par des préoccupations techniques toutes différentes. Frappé de la grande
consommation d'huîtres et de leur bas prix, l'auteur consacra de très rares loisirs à étudier un peu les causes de ce développement
et les méthodes employées, et recueillit une documentation sur le sujet. Mais, n'étant pas spécialiste, et ayant d'autres...
Tipo: Text
Ano: 1923
URL: http://archimer.ifremer.fr/doc/00016/12746/9678.pdf
Note préliminaire sur l'hydrologie de l'étang de Thau (Température et salinité)
Provedor de dados: 5
Autores: Audouin, Jacques.
The study of the fauna and flora in a pond requires a good knowledge of this environment's physico-chemical conditions. Gourret
(1897), Pavillard (1905), Sudry (1911), then more recently Mathias and Tcherniakofsky (1932), Fatemi (1938), Tuzet (1947) and
J. Escot-Molinie (1955) provided information on the temperature, salinity, density, PH, etc. of one of the largest ponds of the
lower Languedoc, that of Thau. However, for a century, the water exchange between the pond and the Mediterranean Sea has
often differed. These changes (the most recent ones being among the most interesting) have modified its hydrology. This is one of
the main reasons which lead us to carry out this study. This study which started at the end of winter 1954-1955 is still in process,...
Tipo: Text
Ano: 1957
URL: http://archimer.ifremer.fr/doc/1957/publication-4657.pdf
La daurade de l'étang de Thau Chrysophrys Aurata (LINNÉ)
Provedor de dados: 5
Autores: Audouin, Jacques.
Appreciated since ancient times, the sea bream Chrysophrys aurata (Linnaeus) [syn. Sparus aurata] has been much studied.
Rondelet (1558) began his description of fish with the sea bream because, he writes, "it is well known by all and praised by the
elders. It is a marine fish that haunts the shores, sometimes entering lagoons, where it matures."...
Tipo: Text
Ano: 1962
URL: http://archimer.ifremer.fr/doc/1962/publication-4245.pdf
L'utilisation d'un pont de wheatstone électronique enregistreur pour la mesure des températures des
nappes d'eau (note préliminaire)
Provedor de dados: 5
Autores: Audouin, Jacques.
Depuis l'invention en 1878 par NEGRETTI et ZAMBRA du thermomètre à renversement, universellement employé aujourd'hui
par les océanographes, plusieurs tentatives ont été faites pour mettre au point des appareils destinés à la mesure électrique des
températures de l'eau de mer à diverses profondeurs. Citons l'appareil de SIEMENS basé sur la variation de résistance électrique
d'un fil avec la température, le sondeur thermo-électrique de LABOUREUR, le thermomètre enregistreur de REGNARD et enfin
les thermomètres imaginés par IDRAC. L'un de ceux conçus par IDRAC était basé comme celui de SIEMENS sur l'emploi d'un
pont de Wheatstone accouplé à une résistance variant avec la température.
Le développement rapide de certaines industries au
cours de ces dernières...
Tipo: Text
Ano: 1959
URL: http://archimer.ifremer.fr/doc/1959/publication-4494.pdf
Experiences sur l'acclimatation de la langouste du cap (Jasus Lalandei Milne-Edwards 1837) dans les
eaux de la cote atlantique française
Provedor de dados: 5
Autores: Audouin, Jacques; Campillo, Albert; Fouilland, Robert; Gueguen, Tanguy.
We know that in France, lobster fishing is experiencing a crisis due to excessive exploitation of all productive sites. To try to
re-establish some balance, the Scientific and Technical Institute of Maritime Fisheries has contemplated acclimatizing a
particularly hardy and fertile lobster that would be likely to offset the thinning of the indigenous lobster stock. It is a southern
lobster, Jasus lalandei MILNE-EDWARDS 1837 that inhabits the Atlantic coasts of South Africa. To that end, we have, for more
than two years, performed systematic breeding of this crustacean in aquariums in order to understand its resistance to
environmental variations and to observe its ability to adapt in French waters. It is the results of this series of experiments done at
the...
Tipo: Text
Ano: 1969
URL: http://archimer.ifremer.fr/doc/1969/publication-3168.pdf
Les cantonnements à crustacés des cotes françaises de l'atlantique et de la manche
Provedor de dados: 5
Autores: Audouin, Jacques; Campillo, Albert; Leglise, Michel.
In order to protect the lobster and crayfish stock, the following restricted areas have been created off the French coasts [...] Some
roed females (lobster and crayfish) have been immersed in these protected areas with the financial help of the Revival Scheme of
the Marine Fisheries. The Scientific and Technical Institute of Marine Fisheries (Roscoff laboratory) has carried out the individual
marking, measuring and weighing of the crustaceans selected for the repopulation and took part in the immersing the spawners in
the following protected areas [...] During the recaptures, the markings collected from the fishermen by the marine authorities have
been forwarded to the Roscoff laboratory. Thanks to the gathered data, we have been able to draw a number of...
Tipo: Text
Ano: 1971
URL: http://archimer.ifremer.fr/doc/1971/publication-6663.pdf
Expérience de repeuplement des fonds à partir de produits d'écloserie
Provedor de dados: 5
Autores: Audouin, Jacques; De Kergariou, Gabriel.
Over the last decades, the fishing effort focused on crustaceans and especially on the lobster has continued to increase. This way,
the number of pots used by each boat has grown from a few dozen to several hundred. This process lead to an overexploitation of
the seabed and the catches do not go over 400 tonnes/years despite the increase of the means involved. Consequently, it has been
necessary to implement a number of new measures to protect the lobster stock, and some restricted areas have been created off the
French coasts.
Tipo: Text
Palavras-chave: Homard; Crustacés; Ecloserie; Reproduction; Repeuplement.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-6578.PDF
Note sur la présence de poissons du genre Salmo dans le bassin occidental de la méditerranée
Provedor de dados: 5
Autores: Audouin, Jacques; Maurin, Claude.
In 1957, some fishermen from Bages (Aude) informed one of us of the occasional presence in their pond of fishes they thought to
be trouts.A few months later on April 7th, 1958, they sent us two specimens belonging, without any doubt, to the genus Salmo,
and caught with a fixed net.Shortly after, on May 21st, in Villeroi, near Sète, two similar fishes were caught along the beach with
a seine net. On the same day, another fish was caught with a line in the Sète canal.The next day, a trawler from Sète, the
"Yvonne~Marie~Rose", caught the same type of salmonid between the Pointe des Aresquiers and Palavas, about 7 miles off the
coast, in waters 40 to 45 m deep.It is not the first time fishes belonging to the genus Salmo have been caught in this area, but...
Tipo: Text
Ano: 1958
URL: http://archimer.ifremer.fr/doc/1958/publication-4636.pdf
Campagne Seamewe 2: Reconnaissance de trace de cable sous-marin dans l'Ocean Indien
Provedor de dados: 5
Autores: Auffret, G A; Bertron, M; Butin, A; Bourillet, J F; Pelle, H; Saget, P; Carre, D; Quentel, J; Uchard, N.
Cruise Seamewe 2 has been devoted to the survey of the projected track of a telecommunication cable on a distance of 2300 miles
between Djibouti and Colombo. Supplementary data relevant to Djibouti approaches (side scan survey) and the areas were
obtained during Leg 1 of Seamewe. The survey involves the seabeam for bathymetry and a mud penetrator 3.5 KHz with a
correlator for determination of the acoustic character of the sea floor. Magnetism and gravimetry have been also recorded on most
of the surveyed tracks. The near-bottom water temperature had also to be checked in a number of stations.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00268/37907/35988.pdf
Géologie des Escarpements de Porcupine et de Goban (N.E. Atlantique). Résultats de la campagne de
plongée CYAPORC.
Provedor de dados: 5
Autores: Auffret, Gerard; Auzende, Jean-marie; Cousin, Michel; Coutelle, Alain; Dobson, M; Geoghegan, M; Masson, D.; Rolet,
J; Vaillant, P.
The aim of the joint French-British CYAPORC submersible cruise was the exploration and sampling of the Porcupine and Goban
Escarpments. A paleozoic mesozoic sedimentary cover has been evidenced abov ea caledonian or older cristalline basement on the
Porcupine scarp. On the Goban scarp, the observed outcrops are mainly lower Cretaceous carbonates overlying paleozoic
sandstones
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00184/29489/27853.pdf
Deep-sea sediments texture and magnetic fabric, indicators of bottom currents regime
Provedor de dados: 5
Autores: Auffret, Gerard; Sichler, Bertrand; Coleno, B.
Critical speeds for erosion, transport and deposition of sedimentary particles and prevailing bottom currents intensities are in such
a range that the textural properties of the sediment silt fraction may be correlated to the intensity of the deep circulation. On the
other hand, the long axis of the sediment magnetic susceptibility ellipsoid, should be aligned according to the current flow. These
hypotheses have been positively tested in five abyssal areas. The authors then apply textural studies to the study of Cenozoic deep
water circulation in two continental margin areas (Bay of Biscay and Western mediterranean, DSDP Site 400 and Site 372). The
results are in good agreement with informations provided by micropaleontological and geochemical...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-5358.pdf
Dynamique sédimentaire de la marge continentale celtique - Evolution Cénozoïque - Spécificité du
Pleistocène supérieur et de l'Holocène
Provedor de dados: 5
Autores: Auffret, Gérard-andré.
Les marges continentales peuvent-elles encore aujourd'hui être qualifiées de "ceinture d'ignorance", ainsi que DRAKE et BURK
les qualifièrent en 1974 ? Certes, depuis cette date, les explorations pétrolières et les forages profonds ont commencé de combler
ce vide de connaissances. Les premières cartes bathymétriques levées avec un faisceau à multiples rayons, et quelques
explorations en submersibles nous ont permis de "voir" enfin les traits d'un paysage.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00034/14524/11830.pdf
Essai de caractérisation de quelques régimes sédimentaires ayant prévalu sur la marge nord du golfe
de gascogne depuis le début du cénozoïque
Provedor de dados: 5
Autores: Auffret, Gérard-andré.
Paleocene to Holocene sediments have been sampled from the northern margin of the Bay of Biscay (Meriadzek Terrace).
Micropaleontological indicators suggest that this area has remained at upper abyssal depth (2000-2600 m) throughout this time ;
moreover it seems to have been ouside the influence of massive terrigenous input through high density turbidity current. The
comparaison of paleogene and quaternary sedimentary regimes points to a drastic difference between the sedimentation rate from
these two episodes. This difference is related to the onset of global glaciation as soon as Middle Miocene with a subsequent
increase of the sea level regressive trend which has been occuring since the uppermost Cretaceous. It appears to us that the
sedimentary model...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5390.pdf
Recent mass wasting processes on the provencal margin (western mediterranean)
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Auzende, Jean-marie; Gennesseaux, M.; Monti, S.; Pastouret, Léo; Pautot, G.; Vanney, J.r.
On October 19, 1979 off Nice, the upper continental shelf has been affected by a catastrophic event (Gennesseaux et al., 1980). (a)
At 2 p.m. (approximate time), following a lowering of the sea level, a tsunami of several meters amplitude reached the Coast line
south of Antibes. This was followed during 4 hours by several oscillations of decreasing amplitude, that were felt on a shore
length of about 100 km. (b) About the same time, an embanked area 300 m long and wide, collapsed in a few seconds ; after the
event the sea-floor in that area was found at a depth of 50 meters. (c) At 17h45 TU and 22h00 TU, two telephone cables have been
broken 80 and 110 km off Nice respectively (fig. 1). (d) No earthquake was registered by the Monaco Observatory during this...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-5354.pdf
Intérêt de la connaissance des processus sédimentaires actuels sur la facade atlantique du plateau
continental francais pour le contrôle des rejets industriels
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Berthois, L.; Allen, G. P.; Douville, J. L.
The conditions of sediments transfert from a river medium to a sea medium may be used as guide for forecasting the industrial
effluents diffusion. The investigation on river suspensions carried down to the sea shows that clay is the essential component, the
maximum size of suspensed particles transfered down stream being very close to 500 microns. Within an estuary, the carried
down suspended particles undergo a temporary storage and a mineralogical selection ; a certain amount of the river sediments is
finally drained towards the open sea, but it is not possible to erclude the ability of the smallest sediments from the continental
table-land to supply the estuary sedimentation. According to the continental table-land morphology, the suspended particles...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-5007.pdf
Observations sur les rides sous-marines du plateau continental
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Berthois, L.; Douville, J.-l.
The growing economic interest shown in the shallower regions of the continental shelf explains the present need to know moree
about the contribution processes of the various sedimentary deposits. Mesurement of tidal currents and theoretical studies on the
effect of waves in a number of sectors have provided an estimate ( table 1) of maximum probable sediment transport values
(Bonneville. Sternberg). These are quite high, and range from 27.7 to 0.65 kg/m/s. It is clear that small differences in maximum
current velocity give rise to large differences in the mass transport value. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-4989.pdf
Observations sur la dynamique des sables de la Pierre Noire (baie de Morlaix, Finistère, France)
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Douville, Jean-luc.
The "Pierre Noire" accumulation (20 m depth) is mostly made up of biogenic sands. The bathymetric map as well as some seismic
profiles show an irregular morphology in relation with the paleozoic basement. Fourty grab samples were collected within a
regular grid. The particle size distributions show that the local variability is low. They allow also to distinguish two fractions
characterized by particles of different nature. Long term bottom current measurements show a westward residual component.
[NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/publication-5432.pdf
Évolution sédimentaire comparée des marges armoricaines et de Blake-Bahama depuis le Crétacé
supérieur, d'après les résultats des Legs 48 et 44 du Glomar Challenger
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo.
We compare the post-lower Cretaceous sedimentary evolution on the Armorican and Blake Plateau continental margins. This
comparison is based on lithological studies made on sediments from legs 44 and 48 of D.V. Glomar Challenger. These studies
(mineralogy, textures, coarse fraction observation) and the consideration of the accumulation rates for each components, allow us
to establish the similarity between the sedimentary regime on both margins. We notice particulary the simultaneous occurrence of
a lowermost upper Cretaceous hiatus, reduced accumulation rates during Late Cretaceous and Paleocene ; the instauration of an
active bottom current regime during Paleocene and its strengthening during Eocene and Oligocene ; a drastic incrcase of the
accumulation...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5236.pdf
Sur les modalités de la sédimentation profonde actuelle dans le golfe de Gascogne
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo.
Knowledges concerning the nature and distribution of present day sedimentary facies on the slope and in the Biscay abyssal plain
are very poor, due to the scarcity of available sea-floor samples.Samples from the uppermost section of Reineck cores obtained in
six areas of the Bay of Biscay in water depths ranging from 2,000 to 4,800 m allow us to study the evolution of the sediments
according to the water depth and geographic localisation.This study suggests that the sediment from the southern part of the bay
independently of depth are characterized by a higher amount in terrigenous components (quartz, clay ...).This disparity is
explained by the differing phyisiographic setting (broad shelf in the northern part versus narrow shelf and submarine canyon...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-5201.pdf
Upper cretaceous to quaternary sedimentary process in the bay of biscay from textural,
mineralogical, and coarse fraction studies
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo.
The evolution of the sedimentary regime that prevailed on the Armorican margin from Late Cretaceous to late Tertiary is herein
discussed and interpreted. The sedimentation budget of four components of the sediment : calcium carbonate, quartz, "less than 10
m non carbonate material,"and biogenic silica are quantified as is the composition of the coarse fraction and the textural properties
of the sediment. Variation of the coarse fraction components is directly related to change in the oceanic environment (terrigenous
supplies, productivity, calcium carbonate dissolution). Sediment texture is a function of many factors, comprising lithology,
dissolution action, and hydrodynamic control. The medians of the silt fractions from bulk and decalcified sediments...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5256.pdf
Dredged rocks from the armorican and celtic margins
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo; Cassat, G.; De Charpal, O.; Cravatte, J.; Guennoc, P.
This report presents the preliminary results of the study of rocks and sediments obtained by dredging during four cruises of the
R/V Jean Charcot and R/V Le Suroît during a cooperative program between CNEXO and CEPM (CH 58 : April 1975 ; SU 01 :
December 1975 ; CH 66 : February 1976 ; and CH 67 : March 1976). A bathymetric map of the margins under study, as well as
the location of the 27 dredges considered in this report, are presented in Figures 1 and 2, respectively. [NOT CONTROLLED
OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5255.pdf
Sédimentation actuelle et récente en mer d'Alboran
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo; Cavanie, Alain; Lanoix, F.
Three processes are called to explain the deposition of hemipelagic muds accounting for around 95 % of deposits in the Alboran
Sea during the Holocene: general currents, distal part of a turbidite current, or a combination of these two causes a
"gravity-assisted bottom current". We will discuss these hypotheses based on the results of the study of superficial sediment
samples and the current measurements conducted during the Polymède II cruise (April-May 1972) by the R.S. "Jean Charcot", as
well as on recent works about this region's hydrology (Lanoix, 1972).
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-5127.pdf
Influence of the prevailing current regime on sedimentation in the Alboran Sea
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Pastouret, Léo; Chamley, Hervé; Lanoix, Franz.
The extent to which the prevailing current regime controls the nature of surface sediments in the Alboran Sea is suggested.
Hydrographic data and surface sediments collected during the Polymède II cruise of the R.V. Jean Charcot in 1972 strongly
suggest that the sediment distribution is controlled by the current system resulting from the difference in density between the
Intermediate and Deep Mediterranean Water and Atlantic Surface Water.
Clay, mainly montmorillonite, and planktonic
Foraminifera are carried into the Mediterranean by east-flowing Atlantic Surface Water. As the suspended particles settle through
the water column, they are redistributed by the westward-flowing deep currents and accumulate on the floor of the sea, where
they constitute a...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1974
URL: http://archimer.ifremer.fr/doc/1974/publication-5158.pdf
Premières observations sur la morphologie et les processus sédimentaires récents de l'Éventail
celtique
Provedor de dados: 5
Autores: Auffret, Gérard-andré; Zaragosi, S; Voisset, Michel; Droz, Laurence; Loubrieu, Benoit; Pelleau, Pascal; Savoye, R;
Bourillet, Jean-francois; Baltzer, Agness; Bourquin, S; Dennielou, Bernard; Coutelle, Alain; Weber, N; Floch, Gilbert.
During the SEDIFAN 1 cruise we surveyed the bathymetry and the acoustic properties of the surface sediment of the Celtic Deep
Sea Fan. We also collected Kullenberg cores in order to study recent sedimentary processes. From the bathymetry survey it is
relatively easy to recognize the main areas of modern fan. The upper fan included a large sedimentary ridge which constitutes the
right levee of the prominent meandering Whittard valley. After its confluence with the Shamrock valley the course of the Whittard
valley is abruptly deflected to the south. At a short distance to the south the valley divides into two upper-fan channels, the Celtic
channel to the west being the deeper one. This point constitutes the centre of a radiating pattern which is developed on...
Tipo: Text
Palavras-chave: Paléoclimat; Turbidité; Sédiment; Quaternaire; Eventail profond; Palaeoclimate; Turbidity; Sediment;
Quaternary; Deep sea fan.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-525.pdf
Cartographie du prisme sedimentaire Holocene en baie de Seine orientale, par sismique reflexion a
haute definition
Provedor de dados: 5
Autores: Auffret, J; D'Ozouville, L.
After the cartography of a Holocene sedimentary prism, results of 8,000 years of natural evolution and 150 years of coastal
equipment, the authors research an active sedimentary system, characteristic of present evolution.
Tipo: Text
Palavras-chave: Holocene; Sedimentary structures; Paleoceanography; Estuarine sedimentation; Sediment distribution; Seismic
reflection profiling; Cartography.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1273.pdf
Apports de l''imagerie fournie par le sonar a balayage lateral a la connaissance de la dynamique
sedimentaire en Baie de Seine
Provedor de dados: 5
Autores: Auffret, J; D'Ozouville, L.
Continous process recording of lateral scanning sonar allows the observation of bottom sediments repartition contrasts. Their
heterogeneity and evolution, the nature of contacts between different sediment deposits can be studied by this instrument, which
completes the different techniques used for the sediment dynamics study.
Tipo: Text
Palavras-chave: Sediment composition; Sediment distribution; Sonar imagery; Sediment dynamics; Sonar.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1284.pdf
Les radionucleides emetteurs gamma dans les sediments de P''estuaire de l''Orne pendant les annees
1973-1983
Provedor de dados: 5
Autores: Auffret, J; Guegueniat, P; Lepy, M; Patry, J; Saur, H.
This work has three objectives: 1) review of the evolution of gamma radioactivity in sediments and suspensions of Orne Estuary;
2) comparison of results of contamination here with other estuaries in the north of France; and 3) using artificial radioactivity to
study Orne estuarine dynamics.
Tipo: Text
Palavras-chave: ANE; France; Basse Normandie; Orne Estuary Tidal motion Hydrodynamics Silt Industrial wastes Sediment
composition Radioactive contamination Sediment pollution Suspended particulate matter Radioisotopes.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1291.pdf
Surveillance écologique. Site de Flamanville. Le domaine benthique : étude par sonar latéral et prises
de vue sous-marines (1983-1984)
Provedor de dados: 5
Autores: Auffret, J.p.; Berne, Serge; Gresselin, F; Guillaumont, Brigitte; Walker, P.
The study of the sublittoral bottoms near the Flamanville site has been tackled in the pilot studies (1976) and project studies (1977
- 1979) in the aim of assessing benthic populations. Given the coarse nature of the sea bed, the identification (figure 1) was carried
out using a towed tool susceptible of sampling in a semi-quantitative way on a wide variety of substrates: a Rallier du Baty drag.
Apart from the rocky bottoms lying right next to the coast, on which no information could be collected, two types of populations
have been identified.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/rapport-6464.pdf
Fine cytochemical localization of lysosomal organelles in phagocytic cells of bivalve molluscs.
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
Bivalve molluscs possess several types of hemolymph cells (hemocytes), involved in internal defense and other physiological
functions. Studies in pathological and experimental conditions have shown their micro- and macrophagic ability. However, the
mechanisms of intracellular digestion are incompletely known in these organisms. The lysosomal apparatus of hemocytes was
therefore investigated in several species by hydrolase localization with the electron microscope. The cytoplasmic granules of
granulocytes displayed a strong acid beta -glycerophosphatase activity. Previous observations had shown that these granules may
contain phagocytized material. This indicates that intracellular digestion is achieved in these organelles. Acid beta
-glycerophosphatase...
Tipo: Text
Palavras-chave: Bivalvia; Phagocytosis; Cells; Ultrastructure; Haemolymph.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1631.pdf
Fixation d''un anticorps anti-lysozyme dans des cellules de mollusques bivalves
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
A polyclonal rabbit anti-human lysozyme (Dako) was applied on histological sections from bivalve mollusc and revealed with a
mouse anti-rabbit IgG fluorescein conjugated antibody to localise cellular lysozyme in tissues where its activity had previously
detected by enzymatic techniques. Labelling occurred in the cytoplasm of epithelial cells covering the body. This is in agreement
with the intracellular distribution of this enzyme. In the Lucinid Lucinella divaricata gills, the cytoplasm of bacteriocytes was also
labelled. This suggests that antibacterial activity occurred in these cells. Control sections indicate that fluorescence was a
consequence of true primary antibody fixation. However, its specificity should be verified by electrophoretical...
Tipo: Text
Palavras-chave: Bivalvia; Immunology; Antibodies; Electrophoresis; Histology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1723.pdf
Recherches sur Marteilia maurini, parasite de Mytilus edulis sur les cotes de Bretagne nord.
Provedor de dados: 5
Autores: Auffret, Michel; Poder, Mikaël.
During histopathological study of wild bivalve populations in three culture areas of northern Brittany, Marteilia maurini parasite,
identified by electron microscopy, was observed for the first time in this geographical area and in a new host- species: Mytilus
edulis.
Tipo: Text
Palavras-chave: Aber Wrach Brittany ANE; France Mytilus edulis Marteilia maurini Geographical distribution Hosts New
records Parasites.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-1838.pdf
Note de présentation de la loi sur la protection et la mise en valeur des paysages et du plan d'action en
faveur de la protection et de la reconquête des paysages du Ministère de l'Environnement
Provedor de dados: 5
Autores: Auger, Christian.
La loi sur la protection et la mise en valeur des paysages élaborée par le ministère de l'environnement a pour but de faire prendre
en compte la protection des paysages dans les plans d'aménagement. dans les plans d'occupation des sols et dans tous les
documents correspondant à des actions pouvant en modifier l'aspect visuel. Cette loi met l'accent sur deux aspects fondamentaux:
- la protection des paysages: * sans interdire l'implantation de nouvelles activités ni la construction d'habitations * sans exclure des
modifications importantes de l'organisation des activités agricoles (par exemple: remembrement) à condition que l'aspect visuel
soit préservé. - la prise en compte, dans différents textes, du maintien des paysages. * Les documents tels que les...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00274/38500/36970.pdf
Eléments de synthèse tirés du séminaire : propositions de stratégies pour mieux concilier
aménagement et maintien d'un fonctionnement naturel des estuaires
Provedor de dados: 5
Autores: Auger, Christian.
The national work seminary on the natural and artificial evolution of French estuaries was organised on the 26th and 27th of
November 1997 by the GIP Hydrosystems and the Ministry of Land Settlement and Environment. Its aim was to summarize the
needs of the different actors and users of the French estuaries in terms of protection of the areas of biological interest, and to
develop a guideline for the strategies to adopt in order to better manage the estuaries, taking into account the environmental needs
as well as those for an economic development.
Tipo: Text
Palavras-chave: Sustainable management; Administration; Action plans; Environment; Improvement; Protection; Areas of
ecological interest; Estuaries; Gestion durable; Administration; Plans d'action; Environnement; Aménagements; Protection; Zones
d'intérêt écologique; Estuaires.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3293.pdf
Dépistage des sources de pollutions microbiologiques en Seudre amont et dans le bassin de Marennes
Oléron
Provedor de dados: 5
Autores: Auger, Christian; Courtois, Olivier; Kantin, Roger; Masson, Daniel; Piquet, Jean-come; Roesberg, Didier.
The oyster culture basin of Marennes - Oléron is characterized by the tastiness of its oysters and the good quality of its waters, and
thus of its shellfish. On that account, the quasi-totality of the production areas are ranked A for non-burrowing shellfishes, thus
confirming the privileged character of the basin. This microbiological and chemical quality contributing to the reputation of the
basin's shellfish farms needs to be preserved. In this purpose, the Regional Shellfish Culture Section of Marennes - Oléron (SRC)
approached the Ifremer in order to continue the monitoring of the microbiological quality carried out on different production areas
susceptible to be affected by some bacteriological contaminations leading to a deterioration of the...
Tipo: Text
Palavras-chave: Contrôle; Contamination; Seudre; Bassin de Marennes Oléron; Surveillance; Pollution microbiologique.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/rapport-6304.PDF
Etude comparée de la croissance de Crassostrea gigas Thunberg dans trois rivières du Morbihan
Provedor de dados: 5
Autores: Auger, Christian; Grizel, Henri; Tige, Gilbert; Langlade, Aime; Rabouin, Marie-agnès.
Breeding Crassostrea gigas was conducted in three rivers of Morbihan (Brittany France). During one year, every four months,
their increasement was examined. In one of these rivers, oysters showed, however their age and their origin, an abnormal
increasement. Shells were very thick, with many chambers. At the opposite, in the two others rivers, oysters did not show that
disordered state. Shells were sound and their linear increasement was harmonious
Tipo: Text
Palavras-chave: Coquilles; Physiologie; Crassostrea gigas; Huîtres.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/acte-6245.PDF
Etudes sanitaires pour le classement de zones conchylicoles en Charente Maritime : Rivière de la
Seudre (coquillages fouisseurs), Banc de Ronce-Perquis (coquillages fouisseurs), Bouchots des
Saumonards (coquillages filtreurs)
Provedor de dados: 5
Autores: Auger, Christian; Noinin, Michel; Roësberg, Didier; Bouquet, Jean-paul.
Trois études de zones ont été conduites en 1997/1998 dans le bassin de Marennes-Oléron (Charente-Maritime). Deux concernaient
la contamination des coquillages fouisseurs de la Seudre et du banc de Ronce-Perquis. La troisième concernait la contamination
des coquillages filtreurs des bouchots à moules des Saumonards (Ile d'Oléron). Ces études avaient pour objet d'évaluer les niveaux
de contamination microbiologique et chimique de ces zones de production de coquillages afin que l'Administration puisse en
effectuer le classement sanitaire conformément à l'arrêté du 21 juillet 1995. La Seudre, à l'aval de la rivière, a montré, pour les
fouisseurs, une qualité microbiologique de catégorie B et une qualité microbiologique de catégorie C pour la partie amont. De...
Tipo: Text
Palavras-chave: Etude de zones; Marennes-Oléron; Charente-Maritime; Coliformes fécaux; Qualité chimique; Qualité
microbiologique; Palourdes; Coques; Moules .; Sanitary studies; Marennes-Oléron; Charente-Maritime (France); Faecal
coliforms; Chemical quality; Microbiologie quality; Chemical content; Clams; Cockles; Mussels; Burrowing and filter-feeder
shell .
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00132/24281/22279.pdf
Comparative study of potential transfer of natural and anthropogenic cadmium to plankton
communities in the North-West African upwelling
Provedor de dados: 5
Autores: Auger, Pierre-amael; Machu, Eric; Gorgues, Thomas; Grima, Nicolas; Waeles, Mathieu.
A Lagrangian approach based on a physical-biogeochemical modeling was used to compare the potential transfer of cadmium
(Cd) from natural and anthropogenic sources to plankton communities (Cd-uptake) in the NorthWest African upwelling. In this
region, coastal upwelling was estimated to be the main natural source of Cd while the most significant anthropogenic source for
marine ecosystem is provided by phosphate industry. In our model experiment, Cd-uptake (natural or anthropogenic) in the
North-West African upwelling is the result of an interplay between the Cd dispersion (by advection processes) and the simulated
biological productivity. In the Moroccan waters, advection processes limit the residence time of water masses resulting in a low
natural...
Tipo: Text
Palavras-chave: Cadmium; North-West African upwelling; Phosphate industry; Dispersion; Bioaccumulation; Plankton
ecosystem.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00252/36310/35200.pdf
Récifs artificiels en Languedoc-Roussillon. Étude géotechnique.
Provedor de dados: 5
Autores: Augris, Claude; Cochonat, Pierre; Guillaume, Jean.
Un programme pilote d’aménagement physique des fonds par récifs artificiels est mené sur le plateau continental de la région
Languedoc Roussillon. Cinq sites d’immersion ont été choisis le long du littoral entre Saint-Cyprien et le Cap d’Agde. Avant
toute implantation, il est apparu nécessaire de connaître les caractéristiques mécaniques des sols de ces périmètres afin d’évaluer
leur aptitude à supporter des récifs artificiels en béton. Pour ces objectifs, une campagne de carottage a été réalisée aux abords de
Port-la-Nouvelle. Le présent rapport expose l’étude géotechnique effectuée sur les carottes obtenues.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00110/22153/19799.pdf
Les granulats marins
Provedor de dados: 5
Autores: Augris, Claude; Cressard, Alain.
Urbanization and the protection of sites and ground waters reduce the number of alluvial aggregate exploitation areas. The ocean
provides different substitution possibilities. In France, marine aggregates represent a substantial potential in the supply of material
from coastal regions. A large number of cruises on the French continental shelf, using different exploration (seismic, drilling,
dredging) and identification techniques, enabled the C.N.E.X.O. to make an inventory of the resources and to bring to light some
workable deposits. Aggregate exploitation in France is distributed between the English Channel and the Atlantic Ocean. It
depends on different factors: technical elements, environmental impact and economical data. Marine aggregate dredging is...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/rapport-4940.PDF
Possibilités d'exploitation de matériaux marins sur les façades maritimes "Manche-Est" et
"Loire-Gironde". Synthèse
Provedor de dados: 5
Autores: Augris, Claude; Delpech, Jean-paul.
A la demande du Ministère de l'Industrie, une étude conjointe Ifremer - BRGM a été menée de 2006 à 2009 pour évaluer les
enjeux environnementaux et les usages existants sur les secteurs reconnus comme offrant des ressources en matériaux marins.
Cette première étude a porté sur les façades "Manche Est" et "Loire-Gironde". Ce rapport fait la synthèse des connaissances
acquises dans les domaines suivants: i) géologie-ressources; ii) ressources et activités halieutiques; environnement, zones
protégées et réglementées, système d'information géographique (SIG) final.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00181/29262/27662.pdf
Atlas thématique de l'environnement marin en baie de Saint-Brieuc (Côtes-d'Armor)
Provedor de dados: 5
Autores: Augris, Claude; Hamon, Dominique.
This atlas presents in a synthetic form the hydrodynamical, geological and biological characteristics of one of the most studied
region of the French littoral. Geologic and geophysical data of the Saint-Brieuc Bay show that the deep basement consists of
pre-palaeozoic or palaeozoic sedimentary series in the centre of the Bay, whereas metamorphic and magmatic formations are
dominant in coastal regions. The location of superficial sediments in the Bay, is mainly due to marine currents. A granulometric
gradient, from very fine to coarse sediments, appears in two directions: from the coast towards the high sea, and from the west to
the east. Rocky substrates disrupt the sediment distribution, with, most of the time, a concentration of coarse sediments near the...
Tipo: Text
Palavras-chave: Atlas; Bathymetry; Bottom topography; Commercial species; Geomorphology; Hydrodynamics; Marine
resources; Sediment analysis; Sedimentary basins; Zoobenthos.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00031/14246/11527.pdf
Étude géologique pour l'implantation de récifs artificiels en Languedoc-Roussillon
Provedor de dados: 5
Autores: Augris, Claude; Mear, Yan.
Un programme pilote d'aménagement des fonds marins littoraux par récifs artificiels est mené sur le plateau continental du
Languedoc-Roussillon. A la demande de l'I.F.R.E.M.E.R., une cartographie des formations superficielles par sonar latéral et une
identification des sédiments par prélèvements à la benne ont été réalisés au cours de deux missions à la mer. Après avoir exposé
les techniques d'exploration, nous présenterons les grands traits sédimentaires des zones d'immersion situés au large de St.
Cyprien et de Canet. Pour chacune d'elles, nous situons l'emplacement des concessions et, à partir de deux documents
cartographiques, nous en discuterons les qualités de valorisation.
Par la suite, des propositions sont faites pour un suivi
scientifique des...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00110/22151/19793.pdf
Inventaire des ressources en matériaux marins : Façades « Manche-Est » et « Loire-Gironde »
Provedor de dados: 5
Autores: Augris, Claude; Simplet, Laure; Maze, Jean-pierre; Morvan, Laetitia; Satra Le Bris, Catherine; Fitamant, Nadege;
Bourillet, Jean-francois; Stephan, Michele.
Le présent rapport expose les résultats relatifs à ces trois phases. Une autre partie, préambule à la cinquième étape du projet, sera
consacrée à la mise en forme des résultats et l’élaboration de la base de données sous Système d’Information Géographique pour
les deux façades concernées « Manche-Est » et « Loire-Gironde ». Enfin, cinq cartes hors texte accompagnent ce rapport : ·
inventaire des ressources en matériaux marins, façade « Manche-Est » - Travaux réalisés (échelle 1/250 000, deux feuilles) ; ·
inventaire des ressources en matériaux marins, façade « Manche-Est » - Épaisseur des sédiments meubles (paléo-chenaux)
(échelle 1/250 000, deux feuilles) ; · inventaire des ressources en matériaux marins, façade « Manche-Est » - Épaisseur des
sédiments...
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00135/24577/22607.pdf
Les virus de l'estuaire de la Charente el du bassin de Marennes-Oleron. Dynamiques
spatio-temporelles et interactions avec les communautés bactériennes
Provedor de dados: 5
Autores: Auguet, Jean-christophe.
This study is divided in two parts; one aim is to evaluate the in situ spalio-temporal dynamics of viral communities in the
Charante estuary in order to define the appropriate seasons to conduct in vitro viral enrichment experiments. These experiments,
that constitute the second part of this study, were performed to assess the impact of freshwater viruses carried by the Charante
River on the dynamics and composition of coastal bacterial communities. With abundance ranging from 1.4 x 107 to 208 x I07
VLPml-1. viruses are the most abundant component among plankton microorganisms in surface waters of the Charente estuary.
Thre temporal dynamics of this component reflects the indirect influence of temperature through the control of bacterial
abundance,...
Tipo: Text
Palavras-chave: Richesse spécifique; Composition clonale; Enrichissement vital; Infection lyrique; Structure des communautés;
MET; PPGE; Dynamique temporelle; Gradient de salinité; Estuaire; Bactérioplancton; Virioplancton; Species richness; Clonal
composition; Viral enrichment; Lytic infection; Community structure; Diversity; TEM; PEGE; Temporal dynamic; Gradient;
Salinity; Estuary; Bacterioplankton; Virioplankton.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-3071.pdf
Potential Effect of Freshwater Virus on the Structure and Activity of Bacterial Communities in the
Marennes-Oléron Bay (France)
Provedor de dados: 5
Autores: Auguet, Jean-christophe; Montanie, Helene; Hartmann, Hans; Lebaron, P.; Casamayor, E. O.; Catala, P.; Delmas,
Daniel.
Batch culture experiments using viral enrichment were conducted to test the response of a coastal bacterial community to
autochthonous (i.e., co-existing) or allochthonous riverine viruses. The effects of viral infections on bacterial dynamics and
activity were assessed by epifluorescence microscopy and thymidine incorporation, respectively, whereas the effect of viral
infection on bacterial community composition was examined by polymerase chain reaction-single strand conformation
polymorphism 16S ribosomal RNA fingerprinting. The percentages of high nucleic acid-containing cells, evaluated by flow
cytometry, were significantly correlated (r (2) = 0.91, n = 12, p < 0.0001) to bacterial production, making this value a good
predictor of active cell...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6636.pdf
Variation interannuelle des peuplements récifaux du récif-barrière de Tiahura (île de Moorea,
Polynésie française)
Provedor de dados: 5
Autores: Augustin, D; Galzin, R; Legendre, P; Salvat, B.
The interannual variability of the five dominant coral reef communities of the French Polynesia seascape (algae, corals,
echinoderms, molluscs and fishes) was studied from 1990 to 1994 in the Tiahura sector of Moorea Island. Qualitative (species
richness) and quantitative (cover percentage or density, depending on the type of community) stability is shown for benthic
communities (algae, corals, echinoderms and molluscs), except for the macroalgae group and for bivalve species Tridacna
maxima. In contrast, the fish community shows in its abundance a significant interannual variability characterized by a
recruitment peak in 1991 and gradual and stochastic changes of densities for a few species. The bleaching events (in 1991 and
1994) and the cyclone Wasa...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20432/18099.pdf
Space-time modelling of blue ling for fisheries stock management
Provedor de dados: 5
Autores: Augustin, Nicole H.; Trenkel, Verena; Wood, Simon; Lorance, Pascal.
Fishery catch data offer a rich potential source of information for management, if modelling can separate out the effects of fishing
effort, species behaviour and population abundance. Here, we model catch data from the blue ling fishery off the northwest coast
of Scotland, using generalised additive mixed models with a space time interaction represented via a novel tensor product of a
soap film smooth of space with a penalized regression spline of time. The use of soap film smoothers avoids imposing
correspondences between spatially adjacent areas that are in fact separated by the stock boundary. The comparison of the
performance of the soap film smooth for space–time with that of a thin plate regression spline based on root mean squared
prediction errors...
Tipo: Text
Palavras-chave: GAMM; Finite area smoothing; Tensor product smooth; Space-time interaction; Tweedie distribution;
Molvadypterygia.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00117/22795/20616.pdf
Sulfide determination in hydrothermal seawater samples using a vibrating gold micro-wire electrode
in conjunction with stripping chronopotentiometry
Provedor de dados: 5
Autores: Aumond, Virginie; Waeles, Mathieu; Salaun, Pascal; Gibbon-walsh, Kristoff; Van Den Berg, Constant M. G.; Sarradin,
Pierre-marie; Riso, Ricardo D.
A rapid electrochemical stripping chronopotentiometric procedure to determined sulfide in unaltered hydrothermal seawater
samples is presented. Sulfide is deposited at -0.25 V (vs Ag/AgCl, KCl 3 M) at a vibrating gold microwire and then stripped
through the application of a reductive constant current (typically -2 mu A). The hydrodynamic conditions are modulated by
vibration allowing a short deposition step, which is shown here to be necessary to minimize H2S volatilization. The limit of
detection (LOD) is 30 nM after a deposition step of 7s. This LOD is in the same range as the most sensitive cathodic voltammetric
technique using a mercury drop electrode and is well below those reported previously for other electrodes capable of being
implemented in situ....
Tipo: Text
Palavras-chave: Sulfide; Stripping chronopotentiometry; Vibrating electrode; Gold; Seawater; Hydrothermal.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00111/22222/20065.pdf
Etude préalable à la gestion des stocks de crustacés en Bretagne
Provedor de dados: 5
Autores: Autissier, Isabelle; Coum, Andrée; Cuillandre, Jean Pierre; Veron, Gerard; Latrouite, Daniel.
At the end of the seventies, as fishing abundance (based on Catch Per Unit Effort) in crabs and lobster fishery steadily declined,
operating expenses increased, and fishing boats changed strategy (changing metiers, covering larger distance to fishing areas,
fishing seasons being extended, ...) professionals and scientists aimed to consider reinforcing management measures. To enlighten
and support potential related decisions, the Comité Régional des Pêches et Cultures Marines de Bretagne (Regional Committee for
fishing and farming in Brittany), together with the ISTPM (Ifremer since 1984), conducted a survey on the exploited populations
and gave a review of the involved Breton fleet. This report shows the results of a survey conducted among fishermen,...
Tipo: Text
Palavras-chave: Landings; Catch rates; Fishing area; Fishing effort; Fleet; Brittany; Edible crab; Lobster; Spider crab; Apport;
Rendement; Zone de pêche; Effort de pêche; Flottille; Bretagne; Tourteau; Homard; Araignée.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/rapport-1548.pdf
Use of the analysis system for monitoring the ARGO sensors drifts
Provedor de dados: 5
Autores: Autret, Emmanuelle; Gaillard, Fabienne.
In the previous letter, we briefly presented the analysis system operational at the Coriolis datacen-ter. This system both synthetises
data sets by pro-ducing temperature and salinity gridded fields and checks for quality the data from the Coriolis data-base in real
time. We will focus here on this latter application of the system. We will discuss of the use of the analysis tool to perform the real
time and delayed mode quality control (QC), particularly of the ARGO profilers. Those two modes of QC are fundamentally
different. Real time QC are meant to flag the data according to pre-defined quality levels, these tests must not slow down the data
flow, they are therefore only qualitative. The delayed mode QC has to be quantitative, one wish to detect and...
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-6423.pdf
Campagne Seapso 3: Structure et evolution du bassin Nord-Fidjien
Provedor de dados: 5
Autores: Auzende, J M; Eissen, J P; Caprais, M P; Gente, P; Gueneley, S; Maze, J P; Harmegnies, F; Lafoy, Y; Lagabrielle, Y.
The North Fiji Basin (NFB) is a shallow oceanic basin, with depths between 2000 and 4000 m, which lies between latitude 10
degree and 25 degree South and longitude 170 degree and 180 degree East. Situated at the boundary of the Indo-Australian and
Pacific plates, the NFB stands between two subduction zones of reverse polarity: the New-Hebrides subduction on its western side
and the Tonga. The aim of the Seapso 3 cruise of N.O. Jean Charcot (December 1985), was to delineate the recent spreading
location in the North Fiji Basin, and to observe possible associated hydrothermal manifestations. For that we first have performed
a large scale bathymetric and geophysical survey and then a detailed survey (complete coverage Seabeam) on two boxes. Finally,
rocks...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00268/37932/36013.pdf
Stratigraphy, structure, paleoenvironment and subsidence history of the Mazagan Escarpment off
central Morocco: A CYAMAZ synthesis
Provedor de dados: 5
Autores: Auzende, J M; Rad, Uvon; Biju-duval, B; Cepek, P; Dostmann, H; Jaffrezo, M; Lancelot, Y; Ruellan, E.
The stratigraphy and structure of the old, starved passive margin of the Mazagan Plateau and the adjacent Escarpment which
extends from 1,000-3,000 m water depth was studied during the cofinanced French-German CYAMAZ deep diving campaign
which obtained 130 in-situ samples, supplemented by direct sea floor observations during 18 dive traverses. The facies evolution
of the Mazagan carbonate platform between kimmeridgian and Valanginian times was mainly influenced by blockfaulting and
sea-level fluctuations. Regressive periods occurred during Kimmeridgia/Tithonian and Late Berriasian times, and are separated by
a late Tithonian/early Berriasian transgression. The drowning of the main carbonate platform and the Early Cretaceous to
Paleogene history of the...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00247/35830/34340.pdf
Outline and results of the CYAMAZ Cruise (Mazagan Escarpment, West-Morocco)
Provedor de dados: 5
Autores: Auzende, J M; Rad, Uvon; Ruellan, E; Biju-duval, B; Cepek, P; Cousin, M; Dostmann, H.
In September-October 1982, a joint German-French project to explore the Mazagan (El Jadida) escarpment and plateau was
carried out with the French submersible sp 3000 Cyana . The main purpose of CYAMAZ cruise was to observe and sample the
steepest part of the escarpment where previous works suggest that the oldest series (since Jurassic) of the infilling of the Central
Atlantic Ocean are outcropping. In this paper the authors present the main outline and results of the eighteen dives operated during
the CYAMAZ cruise. These results essentially concern the stratigraphy and structure of the sedimentary series outcropping along
the Mazagan escarpment. The age of the sedimentary sequence ranges from Late Jurassic-Lower Neocomian until
Plio-Pleistocene. Late...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00247/35833/34343.pdf
Histoire tertiaire de la Méditerranée Occidentale
Provedor de dados: 5
Autores: Auzende, Jean Marie.
C'est ainsi que dans ce mémoire, consacré plus particulièrement à l'histoire tertiaire de la Méditerranée Occidentale, on trouvera,
compte-tenu du fait que la plupart des évènements méditerranéens sont conditionnés par l'interaction entre le mouvement des
grandes plaques Europe et Afrique et celui de microplaques.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00034/14550/11803.pdf
From intracratonic extension to nature spreading in back arc basins: Examples from the Okinawa,
Lau and, North Fiji basins
Provedor de dados: 5
Autores: Auzende, Jean Marie; Boespflug, X; Bougault, Henri; Dosso, Laure; Foucher, Jean-paul; Joron, J-l; Ruellan, Etienne;
Sibuet, Jean-claude.
Three cruises (POP 1, SEAPSO 3 and SEAPSO 4) carried out during the "Tour du Monde" of the R.V. Jean Charcot allow us to
obtain new structural and geochemical data for the Okinawa, North Fiji and Lau basins. Taken together, the structural and
geochemical data illustrate a difference in evolution stages of these sites. The less evolved stage is represented by the Okinawa
basin, where accretion is evidence only by volcanic intrusion into a thinned continental crust. The most evolved stage is illustrated
in the North Fiji basin, where the present-day accretion can be directly compared to the East Pacific Ridge. The Lau basin displays
an intermediate stage with a complex system of accretionary ridges. This difference in the evolution stage is translated in the...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00268/37893/35974.pdf
Cruise Explores Hydrothermal Vents of the Manus Basin
Provedor de dados: 5
Autores: Auzende, Jean Marie; Tetsuro, Urabe; Scientific Party,.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18136/15684.pdf
SHINKAI 6500 dives in the Manus Basin: New STARMER Japanese-French Program
Provedor de dados: 5
Autores: Auzende, Jean Marie; Urabe, T; Ruellan, E; Chabroux, D; Charlou, Jean-luc; Gena, K; Gamo, T; Henry, K;
Matsubayashi, O; Matsumoto, T; Naka, J; Nagaya, Y; Okamura, K.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18099/15647.pdf
La marge continentale tunisienne :résultats d'une étude par sismique réflexion : sa place dans le cadre
tectonique de la méditerranée occidentale
Provedor de dados: 5
Autores: Auzende, Jean-marie.
Serial seismic reflection profiles off Tunisia and between Sardinia and Tunisia are presented. Interpretation is given which
includes paleozoïc basement and its autochtonous (Eocene and plio-quaternary) and allochtonous (Numidian nappe) cover. Recent
tectonic activity is discussed, (Plio-quaternary foundered basins, 'flexure', local uplifts, intrusions). Then the nature of the
basement of the Sardinia-Tunisia zone is discussed with respect to the various hypotheses on the region of the Western
Mediterranean. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-4912.pdf
Activité magmatique, tectonique et hydrothermale actuelle sur la Dorsale Est Pacifique entre17°-et
19°S(campagne NAUDUR)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Ballu, Valerie; Batiza, R; Bideau, Daniel; Cormier, Mh; Fouquet, Yves; Geistdoerfer, Patrick;
Lagabrielle, Yves; Sinton, J; Spadea, P.
The submersible-study of four segments of the East Pacific Rise between 17 degrees and 18 degrees 40'S, where the spreading
rate is greater than 150 mm/a, allows us to confirm the variability of the accretion processes. The segment between 17 degrees and
17 degrees 30'S shows an intense present-day magmatic activity. The one between 18 degrees 10' and 18 degrees 22'S shows a
mainly tectonic activity. The segment between 18 degrees 22' and 18 degrees 37'S is an intermediate stage with an axial graben in
which fresh lavas were emplaced by an extremely young eruption. On all the segments the hydrothermal activity exists ranging
from shimmering water up to black smokers, It is associated with different stages of animal colonization.
Tipo: Text
Palavras-chave: Océan Pacifique; Dorsale ultra-rapide; Magmatisme; Tectonique; Hydrothermalisme.; PACIFIC OCEAN;
ULTRA-FAST SPREADING RIDGE; MAGMATISM; TECTONICS; HYDROTHERMALISM.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00183/29458/27840.pdf
From intracratonic extension to mature spreading in back arc basins: Examples from the Okinawa,
Lau, North Fiji basins
Provedor de dados: 5
Autores: Auzende, Jean-marie; Boespflug, Xavier; Bougault, Henri; Dosso, Laure; Foucher, Jean-paul; Joron, Jean-louis;
Ruellan, Etienne; Sibuet, Jean-claude.
Three cruises (POP 1, SEAPSO 3 and SEAPSO 4) carried out during the "Tour du Monde" of the R.V. Jean Charcot allow us to
obtain new structural and geochemical data for the Okinawa, North Fiji and Lau basins. Taken together, the structural and
geochemical data illustrate a difference in evolution stages of these sites. The less evolved stage is represented by the Okinawa
basin, where accretion is evidenced only by volcanic intrusion into a thinned continental crust. The most evolved stage is
illustrated in the North Fiji basin, where the present-day accretion can be directly compm·ed to the East Pacific Ridge. The Lau
basin displays an intem1ediate stage with a complex system of accretionary ridges. This difference in the evolution stage is
translated in...
Tipo: Text
Palavras-chave: Ouest Pacifique; Bassins arriere arc; Structure; Accretion; Geochimie; West Pacific; Back arc basins; Structure;
Accretion; Geochemistry.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00119/23058/20893.pdf
The origin of the western Mediterranean basin
Provedor de dados: 5
Autores: Auzende, Jean-marie; Bonnin, Jean; Olivet, Jean-louis.
The evolution of the western Mediterranean basin is considered. The Provence basin results from the Oligocene migration of
Corsica and Sardinia southeastwards. The North African basin was created by the dislocation of an 'internal zone plate' by the
mechanism invoked by Karig. Lower or middle Miocene squeezing of the internal zones against the North African platform
caused ejection of the flysch nappes. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-5057.pdf
La marge nord-africaine considérée comme marge active
Provedor de dados: 5
Autores: Auzende, Jean-marie; Bonnin, Jean; Olivet, Jean-louis.
Based on the study of some seismic-reflection profiles, we demonstrate that the identified sedimentary units show a structural
anomaly at the bottom of the North-African continental margin compared to the situation observed on the other margins of the
western Mediterranean basin: all the deep Messinian and infra-Messinian deposits are subjected to a flexure when reaching the
North-African margin; the created depression is filled by the plio-quaternary deposits. This observation, set back in the
geodynamic context of the western Mediterranean, leads to the following interpretation: the North-African margin is a very active
margin at a very early evolutional stage. The abnormal structure of the gravity field in the considered region confirms this...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-5473.pdf
Modèle d'évolution de la Méditerranée occidentale : mise au point
Provedor de dados: 5
Autores: Auzende, Jean-marie; Bonnin, Jean; Olivet, Jean-louis.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00318/42913/42417.pdf
Upper miocene salt layer in the western mediterranean basin
Provedor de dados: 5
Autores: Auzende, Jean-marie; Bonnin, Jean; Olivet, Jean-louis; Pautot, Guy; Mauffret, Alain.
"Flexotir" profiles in the Western Mediterranean Basin reveal a uniform salt layer, overlain by a sedimentary sequence affected by
diapirism. The salt has been given an Upper Miocene age. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1971
URL: http://archimer.ifremer.fr/doc/1971/publication-4889.pdf
Affleurements des roches profondes de la croûte océanique et du manteau sur le mur sud de la
fracture Kane (Atlantique central) : observations par submersible
Provedor de dados: 5
Autores: Auzende, Jean-marie; Cannat, M; Gente, Pascal; Henriet, Jean-pierre; Juteau, Thierry; Karson, J; Lagabrielle, Yves;
Mevel, Christophe; Tivey, M.
The aim of the 20 Nautile dives of the recent Kanaut cruise was the study of the Kane Fracture Zone from its intersection with the
Mid-Atlantic Ridge up to 80 km to the west. The dives have been conducted along four massifs located along the southern wall of
the fracture valley. The flanks of the massifs consist of slightly tilted peridotites, gabbros and basalts, which have been exposed
along normal and strike-slip major faults. No dike complex similar to that observed along the ZF Vema was observed The
observed sections show pervasive cataclastic deformation and greenschist-facies metamorphic overprint.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00183/29470/27886.pdf
Le banc de gorringe (sud-ouest du portugal), un fragment de manteau et de croûte océanique reconnu
par submersible
Provedor de dados: 5
Autores: Auzende, Jean-marie; Charvet, J; Le Lann, Alain; Lepichon, X; Monteiro, Jh; Nicolas, Anne; Olivet, Jean-louis;
Ribeiro, A.
An almost complete geological section of the oceanic crust and upper mantle outcropping on the flanks of the Gorringe Bank has
been surveyed during eight dives of SP 3000 Cyana submersible. The section which is slightly tilted to the east bears a close
resemblance to an ophiolitic complex. [NOT CONTROLLED OCR]
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-5219.pdf
Le banc de Gorringe : résultats de la campagne Cyagor (août 1977)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Charvet, Jacques; Le Lann, Alain; Le Pichon, Xavier; Monteiro, José Hippolyte; Nicolas,
Adolphe; Olivet, Jean-louis; Ribeiro, Antonio.
Gorringe bank is one of the structures which are found on the Europe-Africa plate boundary. It is located between Tagus abyssal
plain in the North and Horseshoe plain in the South. It is oriented NE-SW and is in the exact prolongation of the large
"tardi-hercynien" fractures which cross the iberian peninsula and its continental margin. Gorringe bank show two summits just
under the sea levels, separated by a saddle. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5386.pdf
Accrétion océanique et déformation dans la partie méridionale du bassin Nord-Fidjien: résultats
préliminaires de la campagne océanographique SEAPSO III du N.O. Jean-Charcot (décembre 1985)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Eissen, Jean-philippe; Caprais, Marie-paule; Gente, Pascal; Gueneley, S; Harmegnies, Francois;
Lagabrielle, Yves; Lapouille, A; Lefevre, C; Maillet, P; Maze, Jean-pierre; Ondreas, Helene; Schaaf, A; Singh, R.
Seismic, Seabeam, magnetic and gravimetrie surveys in the southern part of the N-Fiji basin were conducted during the SEAPSO
LEG III Cruise. The active spreading axis was recognized between 17°30'S and 21°S. It consists of a continuous N-S Ridge
cross-cut by transverse directions oriented N25 and N45. North of 17°30'S, the spreading System is more complex due to the
existence of a possible triple junction located around 15° S. The eastern part of the N-Fiji basin, west of Viti Levu is mostly
characterized by alternating highs and deeps (<4,000 m). This area must be regarded no more as a spreading center, but as
complex boundary suffering transverse tectonics.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00184/29492/27835.pdf
Axial accretion in the north Fiji basin (SW Pacific) between 16° and 22° S
Provedor de dados: 5
Autores: Auzende, Jean-marie; Eissen, Jp; Lafoy, Y; Gente, P; Charlou, Jean-luc.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00070/18109/15657.pdf
Marine resources of the economic zone of New Caledonia
Provedor de dados: 5
Autores: Auzende, Jean-marie; Grandperrin, René; Bouniot, Emmanuel; Henin, Christian; Lafoy, Yves; De Forges, Bertrand;
Van De Beuque, Sabrina; Virly, Sabrina.
The ZoNeCo programme, devoted to the evaluation of living and non-living marine resources within the Economic Zone of New
Caledonia, illustrates clearly the Marine Benthic Habitats concept. It exhibits the study of the physical environment and
disciplines such as geology and physical oceanography. The results acquired in these fields are used as bases to study the presence
and the distribution of living species within a given habitat. The knowledge of all the parameters relative to each discipline is a
useful guide for the evaluation and the sustainable management of living and nonliving resources.
Tipo: Text
Palavras-chave: Ressources marines; Habitat; Nouvelle Calédonie; Ressources Sud Ouest Pacifique; Marine resources; Habitat;
New Caledonia; Southwest Pacific.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-832.pdf
Activité tectonique, magmatique et hydrothermale autour des triples jonctions de16°50'S-173°30'E et
de l6°30'S-l76°10E dans le bassin nord fidjien (SWPacifique): Campagne HYFIFLUX
Provedor de dados: 5
Autores: Auzende, Jean-marie; Halbach, P; Allspach, A; Becker, K; Blum, N; Bonnier, Olga; Van Gerven, M; Halbach, M;
Koschinsky, A; Lange, D; Madureira, Mj; Manoutsoglou, E; Mrazek, J; Munch, U; Pratt, C; Rahders, E; Van Reusel, A; Richter,
S; Seifert, T; Spangenberg, T; Stenzler, J; Thiermann, F; Turkay, M; Windoffer, R.
The aim of the HYFIFLUX-SONNE 99 cruise was the geological, biological and chemical study of the 2 triple-junctions
characterizing the oceanic accretion in the North Fiji Basin. Multibeam bathymetric coverage, in situ observations and sampling
confirmed the existence of an active spreading ridge immediately west of the Fiji islands (WFR), and gave an evaluation of the
magmatic and hydrothermal activity of the central ridge (CSR). New hydrothermal sites have been discovered and sampled.
Tipo: Text
Palavras-chave: SW Pacifique; Dorsales; Magmatisme; Tectonique; Hydrothermalisme.; SW PACIFIC; RIDGES;
MAGMATISM; TECTONISM; HYDROTHERMALISM.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00183/29453/27843.pdf
Propagation d'une zone d'accrétion à l'est de la dorsale du bassin Nord Fidjien (SW Pacifique)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Hey, R; Pelletier, Bernard; Lafoy, Yves.
The area located west of the Fiji Islands was previously interpreted as a strike-slip deformation zone. Based on comparison with
the Galapagos propagating rift in the East Pacific the area is reinterpreted in terms of a propagating accretion zone.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00183/29473/27836.pdf
Rift propagation and extensive off-axis volcanic and hydrothermal activity in the Manus Basin (Papua
New Guinea) : ANAUTE cruise
Provedor de dados: 5
Autores: Auzende, Jean-marie; Ishibashi, J; Beaudouin, Y; Charlou, Jean-luc; Delteil, J; Donval, Jean-pierre; Fouquet, Yves;
Gouillou, Jean-pierre; Ildefonse, B; Kimura, H; Nishio, Y; Radford-knoery, Joel; Ruellan, Etienne.
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00068/17937/15472.pdf
6. Multibeam Echo-Sounding Bathymetry of El Jadida Plateau and Escarpment, Mazagan, West
Morocco
Provedor de dados: 5
Autores: Auzende, Jean-marie; Monti, Serge; Ruellan, Etienne.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00184/29497/27814.pdf
Une structure compressive au nord de l'Algérie?
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Bonnin, Jean.
From the study of continuous seismic reflection profiles (Flexotir) we have revealed a marked morphological contrast between the
Northern Algerian margin and the other margins of the Balearic basin. Such a difference is made particularly clear by a
downwarping of the sedimentary layers at the limit of the Algerian margin. This downwarping could be explained by the existence
of a trench being formed by compression. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-4895.pdf
Nature du contact Sardaigne-Tunisie. son role tectonique
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Bonnin, Jean.
The analysis of the geological and geophysical data on the North African basin and its edges highlighted the importance of a
group of accidents in the NE-SW direction, embodied by the Alboran and Emile-Baudot ridges and the northern Tunisian fracture
zone. A recent work (Auzende et al., London, Feb. 1972) showed that this family of accidents could be interpreted as a unique
system of transforming faults linked to the creation of the North African basin.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-5126.pdf
La marge du Grand Banc et la fracture de Terre-Neuve
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Bonnin, Jean.
Some seismic and magnetic profiles carried out south of the Big Bank of Newfoundland during the Noratlante cruise show a
fracture zone which collapses the continental margin and continues to the south-east towards the Azores. This fracture zone
proves evidence of the drift movement of Africa towards the east during the Jurassic or Trias opening of the Atlantic. From the
south-east corner of the Big Bank, the fracture zone supports a sediment ridge formed by the underflows and which continues to
the meridian 430 West.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-4877.pdf
Sampling and observation of oceanic mantle and crust on gorringe bank
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Charvet, J; Le Lann, Alain; Le Pichon, Xavier; Monteiro, Jh; Nicolas, Anne;
Ribeiro, A.
THE structure and nature of the uppermost oceanic mantle and crust has been, and still is, the subject of a major international
research effort . Yet the direct field evidence known to us on this subject, whether obtained by drilling in the I.P.O.D. oceanic
crust programme² or by submersible surveying in the Famous programme , has been either very incomplete or limited to the upper
part of layer 2. As a result, the problem of the comparison between ophiolites and oceanic crust is still debated . We report here
the preliminary results of an in situ geological survey in which we have sampled and observed what we believe to be an almost
complete geological section starting a few kilometres below the Moho discontinuity and ending in the upper part of layer 2...
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5230.pdf
La dépression nord-baléare (Espagne)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Mauffret, Alain; Pautet, Guy.
This document is a structural scheme of the northern Balearic depression based on continuous seismic-reflection profiles and on
the results of the drilling cruise (n° 13) of the "Glomar Challenger" in the Mediterranean Sea. This scheme is linked, to a larger
extent, to the hypothesis of the opening of the north-western Mediterranean Sea during the Oligocene epoch.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-4903.pdf
Structural framework of selected regions of the western mediterranean 2. Balearic islands : southern
prolongation
Provedor de dados: 5
Autores: Auzende, Jean-marie; Olivet, Jean-louis; Pautot, Guy.
In a recent note (Mauffret et al, in press) we described the extension of the acoustic basement south of the Balearic mainland. One
series of arguments (position, morphology, and magnetism) led us to advance the hypothesis that the acoustic basement represents
a prolongation of the Balearic continental basement towards the south at least as far as 38' 30'N latitude. The prolongation appears
to be marked by a large topographic rise between the 1000 and 2600 meter isobaths. Figure 1 (Mauffret et al, in press)
schematically shows the continuation toward the south of this supposed Balearic continent. DSDP Leg 13 Drill Site 124 was
located near 5°E longitude and 39°N latitude at the inferred southeast extremity of the sunken "Balearic continent". With
reference...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-5036.pdf
Les bassins sédimentaires de la mer d'Alboran
Provedor de dados: 5
Autores: Auzende, Jean-marie; Pastouret, Léo; Olivet, Jean-louis; Rehault, Jean-pierre; Szep, Bela.
The study of seismic profiles (made with Sparker and with air-gun) recorded in the Alboran sea helps us to complete and modify
an interpretation which was previously made. Further to complementary data on the structural frame, we showed the existence of
a salt layer topped with evaporites, in the basins situated on both sides of the Alboran ridges. With regard to the thick infra-salt
layer in the western Alboran basin, it appears that the basement of the basin, as a whole, is at a depth similar to the depth of the
North-African basin. This supports the hypothesis of a common origin and evolution for both basins. [NOT CONTROLLED
OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-5464.pdf
La marge continentale algérienne et le phénomène de subsidence : exemple du Golfe de Bougie
Provedor de dados: 5
Autores: Auzende, Jean-marie; Pautot, Guy.
The study of a continuous seismic-reflection profile (Flexotir) carried out in the central part of the Bougie gulf, enabled the
identification of a thick sediment series leaning on the continental basement and continuing underneath the abyssal plain. On the
one hand, this series contains a formation (D) thought to be a Miocene salt layer, and on the other hand, it keeps the trace of some
upheaval and subsidence movements which define the recent tectonic history of the Bougie gulf. No trace of the current
compression phenomenon between the Eurasian and African plates could be found.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1970
URL: http://archimer.ifremer.fr/doc/1970/publication-4886.pdf
Considérations sur l'origine et la mise en place des ophiolites des Alpes Occidentales : apport de la
connaissance des structures océaniques
Provedor de dados: 5
Autores: Auzende, Jean-marie; Polino, R; Lagabrielle, Yves; Olivet, Jean-louis.
We suggest that some. ophiolites of the "Schistes Lustrés Nappe" (Western Alps) originated from oceanic massives thrusted and
tectonically incorporated into the ocean sediments during early compressive events. This interprétation is supported by field
observations and oceanic data.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00184/29500/27851.pdf
Résultats préliminaires des plongées du Shinkai 6500 sur la dorsale du Bassin Nord-Fidjien (SW
Pacifique) — Programme STARMER
Provedor de dados: 5
Autores: Auzende, Jean-marie; Tanahashi, M; Bendel, V; Fujikura, K; Geistdoerfer, P; Gracia Mont, Eulalia; Joshima, M;
Kisimoto, K; Mitsuzawa, K; Murai, M; Nojiri, Y; Ondreas, Helene; Pratt, C; Ruellan, Etienne.
The aim of the YOKOSUKA 91 cruise (October 1991) of the Japanese submersible Shinkai 6500 was to come back on two
hydrothermal sites of the axis of the North Fiji Basin ridge which had already been explored by the submersible Nautile in 1989.
This cruise gave us the opportunity to show that the hydrothermal manifestations vary a lot in terms of geology, geochemistry or
biology during a very short time. A new site which is located in a deep graben of the N 160 ridge axis showed only activity along
a fault system marked by sulphide deposits.
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00184/29486/27854.pdf
Première exploration in situ de la dorsale médio-Atlantique au sud de la zone de fracture Atlantis
(29"06'N-43"1l'W)
Provedor de dados: 5
Autores: Auzende, Jean-marie; Tivey, M; Cannat, M; Gente, Pascal; Henriet, Jean-pierre; Juteau, Thierry; Karson, J; Lagabrielle,
Yves.
During the Kanaut cruise of the submersible Nautile and its mothership Le-Nadir (15 November-16 December 1992), one dive
was devoted to the detailed study of a specific area of the neovolcanic ridge of the MAR around 29-degrees-06'N and
43-degrees-11'W. This study emphasizes the importance of the juxtaposition and the stacking of hundreds of small volcanoes in
the construction of a neovolcanic ridge and confirms the general observation made from multibeam and side-scan sonar data. The
very large magnetic anomaly associated with these massifs favours an extreme freshness.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00183/29475/27887.pdf
Stratigraphie des escarpements encadrant la baie de Porcupine : résultats préliminaires de la
campagne Cyaporc (juillet-août 1986)
Provedor de dados: 5
Autores: Auzende, Jm; Cousin, M; Coutelle, A; Dobson, M; Geoghegan, M; Masson, D; Rolet, J; Vaillant, P.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00106/21742/19315.pdf
Extensive magmatic and hydrothermal activity in Manus Basin, Papua New Guinea
Provedor de dados: 5
Autores: Auzende, Jm; Ishibashi, J; Beaudouin, Y; Charlou, Jean-luc; Delteil, J; Donval, Jp; Fouquet, Yves; Gouillou, Jp;
Ildefonse, B; Kimura, H.
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00069/18055/15597.pdf
Analysis of the black-chinned tilapia Sarotherodon melanotheron heudelotii reproducing under a
wide range of salinities: from RNA-seq to candidate genes
Provedor de dados: 5
Autores: Avarre, Jean-christophe; Dugue, R.; Alonso, Pascal; Diombokho, A.; Joffrois, C.; Faivre, N.; Cochet, C.; Durand, Jean
Dominique.
The black-chinned tilapia Sarotherodon melanotheron heudelotii is an ecologically appealing model as it shows exceptional
adaptive capacities, especially with regard to salinity. In spite of this, this species is devoid of genomic resources, which impedes
the understanding of such remarkable features. De novo assembly of transcript sequences produced by next-generation sequencing
technologies offers a rapid approach to obtain expressed gene sequences for non-model organisms. It also facilitates the
development of quantitative real-time PCR (qPCR) assays for analysing gene expression under different environmental
conditions. Nevertheless, obtaining accurate and reliable qPCR results from such data requires a number of validations prior to
interpretation....
Tipo: Text
Palavras-chave: Gene expression; Non-model organism; Reference gene; Salinity; Spermatogenesis; Tilapia.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28255/26625.pdf
The Seismic Structure of the Western approaches and the South Armorican Continental Shelf and its
Geological Interpretation
Provedor de dados: 5
Autores: Avedik, F.
Based on all available seismic refraction data, the seismic structure of the Western Approaches to the English Channel and the
South Armorican continental shelf has been established. The correlation of seismic velocities showed a three-fold structure,
related to geological layers as follows: 1. High-velocity, deep sequence (4.4-6.6km/sec): metamorphic basement and Lower to
Middle Palaeozoic. 2. Intermediate sequence (3.6-4.3km/sec): Permo-Triassic (and Jurassic?) and possibly also Lower Cretaceous
on the margin of the Western Approaches. 3. Upper sequence (1.9-3.6km/sec): Cretaceous and Cenozoic sediments. An acoustic
unconformity appears to be present between the Upper sequence and the High velocity and Intermediate sequences. Different
geomorphology...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-5465.pdf
Observatoires sismiques sur le fond de la mer
Provedor de dados: 5
Autores: Avedik, Felix.
Detecting and localizing nuclear blasts was an essential stimulus of the actions undertaken in the 1960's to emplace seismological
observatories on the seafloor. The plate-tectonic theory, in which the oceanic areas play a major role, greatly accelerated the
evolution of modern oceanology. The contribution of Ifremer's department of Marine Geosciences, in helping to advance this area
of research, has been significant since 1972. The need for refraction studies to explore the deep structure of the margins and
ocean-continent transition zones led us to design a deep-sea Ocean Bottom Seismograph (OBS) MK I in 1975, rated to 6,000
metres depth. This system introduced, for the first time, the concept of "isolated seismic sensors". This principle was adopted...
Tipo: Text
Palavras-chave: Geology; Seismometers; Digital records; Seismology; Surveys; Marine technology; Seismic data.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-1140.pdf
New high-energy implosion seismic source
Provedor de dados: 5
Autores: Avedik, Felix; Combe, Robert.
Elimination of bubble pulses has been the main concern of air gun users for the past years. Until now, the proposed solutions:
divided chambers, spheres, have resulted in an appreciable loss of acoustic energy. The Casios-Simplon Water Gun, developed by
CNEXO and SODERA, solved this problem using surprisingly simple means, which not only eliminate the disturbing secondary
effects (bubbles) but greatly increase the acoustic efficiency of the air gun. The system uses the air gun as a pneumatic accelerator
and creates the acoustic pulse by implosion. The emitted signal is free of disturbing secondary effects and its power spectrum
closely approaches the spectrum of dynamite type sources. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-4977.pdf
Preliminary results of a seismic refraction study in the meriadzek-trevelyan area, bay of biscay
Provedor de dados: 5
Autores: Avedik, Félix; Howard, David.
Seismic refraction studies over the Meriadzek-Trevelyan area in the north of the Bay of Biscay have established four main
geological sequences : Cenozoic (1.9 to 2.8 km/s) ; Cretaceous (3.2 to 4.0 km/s); lower to middle Mesozoic (4.5 to 5.0 km/s) ;
pre-Mesozoic (5.4 to 6.3 km/s). These agree broadly with the adjoining Western Approaches and English Channel areas to the
northeast. The sub-sedimentary structure between the Meriadzek Terrace and the Trevelyan escarpment is of continental origin
having a block-faulted pattern and is interpreted as a southwestward prolongation of the continental structure. The blockfaulted
form is considered to have originated during the rifting of the Armorican Continental margin and may have been influenced by a
tectonic...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-5247.pdf
Seismic refraction on continental shelves with detectors on sea floor
Provedor de dados: 5
Autores: Avedik, Felix; Renard, V.
Seismic refraction at sea and on continental shelves requires most of all a precise positioning of the shooting and receiving
stations and a good signal to noise ratio. A new system has been developed using detectors anchored on the sea floor and radio
transmission of signal for refraction work on continental shelves. This technique satisfies both requirements. The system has
been tested in the western Channel in December 1971. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-5125.pdf
Ocean bottom refraction seismograph (obrs)
Provedor de dados: 5
Autores: Avedik, Félix; Renard, Vincent; Buisine, Didier; Cornic, Jean-yves.
This paper describes a pop-up ocean bottom seismograph designed primarily for refraction surveys both on the continental shelf
and in deep sea. Its development is the extension of our system based on seismic detectors located on the sea floor with radio
transmission of seismic signals and used for seismic refraction studies on the continental shelf. The seismic detectors (vertical
geophone or hydrophone and two orthogonally mounted horizontal geophones) are located outside of the pressure vessel on the
main frame. Optionally, the seismic sensors may be decoupled from the main frame assembly.This decoupling is performed by a
mobile arm positioning the separate three component sensor package on the sea floor. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5174.pdf
Production de naissain de bivalves à moyenne échelle : buts et perspectives
Provedor de dados: 5
Autores: Aveline, C.; Flassch, Jean-pierre; Koike, Y.
This issue could be tackled from two different point of views: It was indeed possible to turn towards the Japanese techniques
(semi-intensive experiments using large volumes superior to one cubic metre, providing immediate results but hardly repeatable,
with a need for a large and non-specialized manpower), or to go for the enclosed system with a high controlled production (long
implementation, heavier immediate investment, use ,in series, of small volumes with high concentrations, artificially produced
natural food provided in known quantities, lower manpower needs but highly specialized). For a better knowledge of the issues
raised and an easier future adaptation to the European socio-economic context, considering the knowledge brought by the
Anglo-Saxon...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-5980.pdf
Evaluation des apports fluviatiles dans l''estuaire de la Seine
Provedor de dados: 5
Autores: Avoine, J.
Economic activities and urbanization along the Seine watershed, are the main factors of increased river discharge with natural
deposits. A long term supervision of this river has allowed the assessment of the liquid flow rate, the solid load, and the metallic
pollution.
Tipo: Text
Palavras-chave: Seasonal variations; Trace metals; Sediment transport; Fluid flow; Brackishwater pollution; Estuarine
sedimentation; River discharge.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1274.pdf
Contributions des traceurs radioactifs a l''etude des mouvements sedimentaires en Baie de Seine
Provedor de dados: 5
Autores: Avoine, J; Caillot, A; Hoslin, R; Larsonneur, C; Massias, L; Quesney, M.
Sediment dynamics have been studied from 1979 to 1984 by the use of radio active tracers, to quantify sediment transport and to
know the limits of tides and swell action in terms of sediment composition and depth. This technique has allowed the study of
sand drifting (between -2 m and -15 m) and resuspension of muddy sediments. The effects of sediment movements on estuarine
sediment accumulation are included in this report.
Tipo: Text
Palavras-chave: Radioactive tracers; Sediment movement; Sediment dynamics.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1285.pdf
Influence des apports fluviatiles en Baie de Seine
Provedor de dados: 5
Autores: Avoine, J; Crevel, L.
Hydrological study of Seine Bay displays two areas differentiated by salinity distribution. One has marine characteristics and the
other is under fluvial influence. In this paper the authors give the main results of exchanges between the environments, obtained
by the study of water dilution, solid particles dispersion, and their contribution to sedimentation.
Tipo: Text
Palavras-chave: Estuarine front; River plumes; Trace metals; Salinity; Residual flow; Seasonal variations; Environmental effects;
Sediment dynamics; Estuarine sedimentation; River discharge.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1275.pdf
La dynamique sedimentaire dans les estuaires de la Baie de Seine. Consequences sur l''environnement
Provedor de dados: 5
Autores: Avoine, J; Dubrulle, L; Larsonneur, C.
Tides and fluvial flow rate, factors of estuarine dynamics, explain physicochemical and biological properties, silting and clogging
of these environments. Seine Bay is a macrotidal environment into which discharge several estuaries (Seine, Orne, Veys Bay).
After speaking about the characteristics of water and sediment dynamics, the authors deal with the effects of man-made
modifications and the necessity to protect the environment.
Tipo: Text
Palavras-chave: ANE; France; Basse Normandie; Orne estuary Temporal variations Sedimentation Stream flow Residual flow
Environmental effects Estuaries Sediment dynamics.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1282.pdf
Port autonome Du Havre - Synthèse des connaissances sur l'estuaire de la Seine - Partie 2 Sédimentologie
Provedor de dados: 5
Autores: Avoine, Jacques.
A la demande du Port Autonome du Havre, l'IFREMER a été chargé de réaliser une synthèse des connaissances existantes sur
l'estuaire de la Seine. IFREMER a confié à l'Université de Caen (Centre Régional d'Etudes Côtières- Laboratoire de Géologie
marine) la rédaction d'une synthèse sédimentologique comportant les points suivants : - évolution historique de l'estuaire, en
particulier durant les 20 dernières années, - état actuel des connaissances sur la couverture sédimentaire et ses fluctuations
saisonnières, - synthèse des connaissances hydrosédimentaires précisant les acquis et les lacunes, - migration du bouchon vaseux mécanismes et sites d'accumulation des vases, dans l'estuaire de la Seine et la partie orientale de la Baie de Seine, - exploitation
des...
Tipo: Text
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00104/21556/19135.pdf
Bilan des connaissances sur la biologie et la pêche du hareng (Clupea Harengus L.) dans le golfe de
Gascogne
Provedor de dados: 5
Autores: Avrilla, J.l.
Tipo: Text
Palavras-chave: Biscay bay; Clupea harengus; Biology; Fishing; Golfe de Gascogne; Biologie; Clupea harengus; Capture.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/rapport-2186.pdf
Détermination des taux d'accumulation des hydrocarbures par les moules dans des conditions de
pollution chronique
Provedor de dados: 5
Autores: Awad, Hassan.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-7159.pdf
Etude comparative des methodes d'analyses de la contamination petroliere dans l'environment marin.
1. Etude fluorometrique.
Provedor de dados: 5
Autores: Awad, Hassan.
Although the determination of hydrocarbons in the marine environment is based usually on the same analytical steps, organic
solvents extraction, column chromatography purification, and means for hydrocarbons detection and identification, the variations
in the equipment and solvent systems included in the different established techniques hinder to obtain a global idea about the oil
contamination state of the seas. Many authors and conferences declared the necessity of carrying out a comparative study on the
efficiencies of the various published analytical techniques in this field. According to the facilities available in the laboratory, 25
applications of 16 published techniques were applied on a fixed weight of unique sample of sediments, mussels, fishes,...
Tipo: Text
Palavras-chave: Analytical techniques; Hydrocarbons; Fluorescence spectroscopy.
Ano: 1977
URL: http://archimer.ifremer.fr/doc/1977/publication-1990.pdf
Phytoplankton growth formulation in marine ecosystem models: Should we take into account
photo-acclimation and variable stoichiometry in oligotrophic areas?
Provedor de dados: 5
Autores: Ayata, S. -d.; Levy, Marina; Aumont, Olivier; Sciandra, Antoine; Sainte-marie, J.; Tagliabue, A.; Bernard, Olivier.
The aim of this study is to evaluate the consequences of accounting for variable Chl:C (chlorophyll:carbon) and C:N
(carbon:nitrogen) ratios in the formulation of phytoplankton growth in biogeochemical models. We compare the qualitative
behavior of a suite of phytoplankton growth formulations with increasing complexity: 1) a Redfield formulation (constant C:N
ratio) without photo-acclimation (constant Chl:C ratio), 2) a Redfield formulation with diagnostic chlorophyll (variable and
empirical Chl:C ratio), 3) a quota formulation (variable C:N ratio) with diagnostic chlorophyll, and 4) a quota formulation with
prognostic chlorophyll (dynamic variable). These phytoplankton growth formulations are embedded in a simple marine ecosystem
model in a 1D framework...
Tipo: Text
Palavras-chave: Biogeochemical modeling; Phytoplankton; Photo-acclimation; Redfield ratio; Internal quota; BATS;
Optimization; Micro-genetic algorithm.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00159/27071/25460.pdf
Modelling larval dispersal and settlement of the reef-building polychaete Sabellaria alveolata: Role of
hydroclimatic processes on the sustainability of biogenic reefs
Provedor de dados: 5
Autores: Ayata, Sakina-dorothee; Ellien, Celine; Dumas, Franck; Dubois, Stanislas; Thiebaut, Eric.
The honeycomb worm Sabellaria alveolata forms biogenic reefs which constitute diversity hotspots on tidal flats. The largest
known reefs in Europe, located in the Bay of Mont-Saint-Michel (English Channel), are suffering increasing anthropogenic
disturbances which raise the question of their sustainability. As the ability to recover depends partly on the recolonization of
damaged reefs by larval supply, evaluating larval dispersal and the connectivity between distant reefs is a major challenge for their
conservation. In the present study, we used a 3D biophysical model to simulate larval dispersal under realistic hydroclimatic
conditions and estimate larval retention and exchanges among the two reefs of different sizes within the bay. The model takes
into...
Tipo: Text
Palavras-chave: Bay of Mont Saint Michel; English Channel; Modelling; Larval settlement; Larval transport; Connectivity;
Biogenic reefs; Sabellaria alveolata.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6841.pdf
How does the connectivity between populations mediate range limits of marine invertebrates? A case
study of larval dispersal between the Bay of Biscay and the English Channel (North-East Atlantic)
Provedor de dados: 5
Autores: Ayata, Sakina-dorothee; Lazure, Pascal; Thiebaut, Eric.
For many marine species, larval dispersal plays a crucial role in population persistence, re-colonization of disturbed areas, and
distribution of species range limits through the control of population connectivity. Along the French Atlantic coast (NE Atlantic),
a biogeographical transition zone has been reported between temperate and cold-temperate marine faunal assemblages.
Hydrodynamics in this area are highly complex and variable including numerous mesoscale features (e.g. river plumes, fronts,
upwellings, low salinity lenses), which could constrain larval transport and connectivity. In this context, the aim of this study was
to assess how hydrodynamic conditions and biological traits influence larval transport and contribute to population connectivity...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00030/14174/11506.pdf
Etude technique et financière sur la filière de production intensive de la palourde en marais
Provedor de dados: 5
Autores: Ayel, J. P.
The development of the intensive method for producing Manila clams (Ruditapes philippinarum) in marshes is the result of five
years of research at the Ifremer station in Bouin. The method developed here produces a clam of commercial size in 19 months
instead of two to three years. Batches of intensively farmed clams are more homogenous than batches of extensively farmed
clams. The many advantages of this method suggest that the clam farming profession would be very interested in these new
culture techniques. Before considering technology transfer, it is necessary to carry out an economic study. The project retained for
this study concerns the installation of a new farm that is to produce 15 or 20 t of commercial-size clams (>35 mm) in
Bourgneuf Bay. The...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-4170.pdf
Production and downward flux of zooplankton fecal pellets in the anticyclonic gyre off shikoku, japan
Provedor de dados: 5
Autores: Ayukai, T; Hattori, H.
Sediment trap experiments were conducted to assess the production, disintegration and downward flux of zooplankton fecal
pellets in the upper 500 m water column of the anticyclonic gyre off Shikoku, Japan. The particulate organic carbon (POC) flux
decreased from 53.7 mgC M-2 d-1 at 50 m to 23.7 MgC M-2 d-1 at 500 m. The POC flux at the bottom of the euphotic layer (100
m) was 37.9 mgC m-2 d-1, which was equivalent to about 5 % of the daily primary production in the gyre. The estimated pellet
carbon flux accounted for 0.4-1.7 % of the total POC flux. The pellet flux rapidly decreased in the upper 150 m layer, in parallel
with the decrease in zooplankton abundance. A mid-depth peak of pellet flux, not associated with a noticeable population of
zooplankton,...
Tipo: Text
Palavras-chave: SEDIMENT TRAP; FECAL PELLETS; PRODUCTION; DOWNWARD FLUX.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00100/21150/18769.pdf
Etude de la structure des communautés bactériennes du sédiment et de l'écologie de Vibrio
aestuarianus pathogène de l'huître creuse Crassostrea gigas dans deux sites ostréicoles
Provedor de dados: 5
Autores: Azandegbe, Afi.
Since several years, the French oyster farming copes with high mortality affecting juveniles and some adults of the Pacific oyster
Crassostrea gigas. Studies conducted in the framework of a multidisciplinary project (MOREST) showed that mortality was
related to several factors like physiological and genetic status of oyster, pathogens including bacteria of the genus Vibrio, and
revealed that the sediment, on which the oyster cages are installed, might play a particular role. This has been suggested because
of the concomitance of the mortalities and increased toxic compounds like ammonia and sulphides in the sediment. Moreover, the
presence of Vibrio bacteria in the sediment indicates a dual role of sediment in the mortality onset. The physico-chemical...
Tipo: Text
Palavras-chave: Huître; Crassostrea gigas; Bactéries; Vibrio aestuarianus; Écologie; Sédiment; Ammonium; Sulfures; Oyster;
Crassostrea gigas; Bacteria; Vibrio aestuarianus; Ecology; Sediment; Ammonia; Sulphide.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14277/11561.pdf
Occurrence and seasonality of Vibrio aestuarianus in sediment and Crassostrea gigas haemolymph at
two oyster farms in France
Provedor de dados: 5
Autores: Azandegbe, Afi; Gamier, Matthieu; Andrieux, Francoise; Kerouel, Roger; Philippon, Xavier; Nicolas, Jean-louis.
Vibrio aestuarianus is frequently found in coastal areas and can infect and induce mortalities in the pacific oyster Crassostrea
gigas. However, nothing is known about its distribution and seasonality in the estuarine environment, especially where oyster
farming is practiced. Its occurrence was investigated in sediment and oyster haemolymph at 2 oyster farms in Brittany (France)
over 2 yr during 2 periods, from June to September 2007 and from February to June 2008. Total heterotrophic bacteria (HB) were
cultured on marine agar while total Vibrio spp. and V. aestuarianus were selectively numerated using thiosulfate citrate bile salts
sucrose agar (TCBS agar) and the species-specific hybridisation method, respectively. PCR was performed to detect V....
Tipo: Text
Palavras-chave: Vibrio aestuarianus; Crassostrea gigas Sediment; Seasonal abundance; Colony-blot.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00017/12813/9756.pdf
Influence of oyster culture on biogeochemistry and bacterial community structure at the
sediment-water interface
Provedor de dados: 5
Autores: Azandegbe, Afi; Poly, Franck; Andrieux, Francoise; Kerouel, Roger; Philippon, Xavier; Nicolas, Jean-louis.
Bacterial community structure and some biogeochemical parameters were studied in the sediment of two Pacific oyster farming
sites, Aber Benoît (AB) and Rivière d'Auray (RA) in Brittany (France), to examine the ecological impact of oysters and to
evaluate the emission of sulfide and ammonia from sediment. At AB, the organic matter accumulated in the sediment beneath the
oyster tables was rapidly mineralized, with strong fluxes of ammonia and sulfide that reached 1014 μmol m−2 h−1 - and 215 μmol
m−2 h−1, respectively, in June 2007. At RA, the fluxes were about half as strong on average and better distributed through the
year. The ammonia and sulfide concentrations in the overlying water never reached levels that would be toxic to oysters in either
site, nor...
Tipo: Text
Palavras-chave: Sediment; Biogeochemical parameters; Fluxes; Bacterial structure; Crassostrea gigas.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00079/19010/17083.pdf
Hydrocarbon pollution along Moroccan coasts and BPH activity in the mussel Perna perna
Provedor de dados: 5
Autores: Azdi, M.; Moukrim, A.; Burgeot, Thierry; Budzinski, H.; Chiffoleau, Jean-francois; Kaaya, A.; Zekhnini, A.; Narbonne,
J. F.; Guarrigues, Ph.
Specimens of the mussel Perna perna were collected along Moroccan coasts to determine the concentrations of polycyclic
aromatic hydrocarbons ( PAHs) bioaccumulated in the tissues, and to measure benzo[ a] pyrene hydroxylase (BPH) activity.
Chemical analysis of PAHs show that the Mediterranean (Nador, Martil, Tanger) and central Atlantic coasts ( from Rabat to Jorf
Lihoudi) are those most contaminated ( 351 245 ng.g(-1) dry weight in Tanger). The mussel contaminants were of mixed origin
for most of the locations with non negligible inputs of petrogenic origin in many of them. Baseline levels of PAHs were between 6
and 55 ng.g(-1) dry weight. BPH activity showed significant correlation (r(s) = 0.64, P < 0.05) with total PAH concentrations at
the six most...
Tipo: Text
Palavras-chave: Mussel; Perna perna; Moroccan coasts; Polycyclic aromatic hydrocarbons; Benzoapyrene hydroxylase; Baseline
level.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00000/10995/12929.pdf
Can selection for resistance to OsHV-1 infection modify susceptibility to Vibrio aestuarianus infection
in Crassostrea gigas? First insights from experimental challenges using primary and successive
exposures
Provedor de dados: 5
Autores: Azema, Patrick; Travers, Marie-agnes; De Lorgeril, Julien; Tourbiez, Delphine; Degremont, Lionel.
Since 2008, the emergent virus OsHV 1μvar has provoked massive mortality events in Crassostrea gigas spat and juveniles in
France. Since 2012, mortality driven by the pathogenic bacteria Vibrio aestuarianus has stricken market sized adults. A hypothesis
to explain the sudden increase in mortality observed in France since 2012 is that selective pressure due to recurrent viral infections
could have led to a higher susceptibility of adults to Vibrio infection. In our study, two OsHV-1-resistant lines (AS and BS) and
their respective controls (AC and BC) were experimentally challenged in the laboratory to determine their level of susceptibility to
V. aestuarianus infection. At the juvenile stage, the selected lines exhibited lower mortality (14 and 33%) than...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00299/41054/40215.pdf
Estimation of the Agulhas ring impacts on meridional heat fluxes and transport using ARGO floats
and satellite data
Provedor de dados: 5
Autores: Azevedo Correia, Joao Marcos; De Boyer Montegut, Clement; Cabanes, Cecile; Klein, Patrice.
A method that combines vertical profiles from the ARGO floats program and satellite Sea Surface Height (SSH) data is used to
reconstruct the vertical structure of the Agulhas rings. All eddies shed by the Agulhas retroflection in the period between January
2005 and December 2008 were successfully reconstructed. The velocity structures obtained are tilted and phase shifted in relation
to the temperature anomalies, resulting in an annual mean eddy meridional heat flux across the ring paths of 0.062 +/- 0.012 PW
(northward). A first order estimate indicates 0.07 PW entering the Atlantic from the Indian Ocean through Agulhas rings. The
volume transport by Agulhas rings is believed to play a central role in the overturning circulation, being the main process...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00051/16221/13746.pdf
Evolution des hydrocarbures et activité bactérienne dans les sédiments côtiers méditerranéens
Provedor de dados: 5
Autores: Azoulay, E.; Dubreuil, J.; Colin, H.; Dou, H.; Mille, G; Giusti, G.
The evolution of the hydrocarbons in the marine sediments of the mediterranean coast was studied by two different but
complementary methods. In the first part of this study we describe results obtained through a technique specially adapted to
sediments. It leads to a relatively accurate and reproducible determination of the hydrocarbon concentrations in sediments
collected at many sites of the mediterranean coast polluted or not by chroni-cal petroleum inpout (Brusc lagoon, zones of Embiez,
Fos, Carry-le-Rouet, and Etang de Berre). The hydrocarbon concentrations in the non-polluted sediments are always inferior to
300 mg/kg of dry sediment with important variations according to seasons (x 4 during winter). In the polluted sediments the
hydrocarbon...
Tipo: Text
Palavras-chave: Hydrocarbures; Sédiments côtiers méditerranéens; Populations bactériennes mixtes; Pollutions pétrolières;
Biodégradation.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00306/41751/40962.pdf
Dégradation des hydrocarbures et dénitrification bacterienne dans les sédiments marins de la cote
mediterranéenne
Provedor de dados: 5
Autores: Azoulay, E.; Violet, M.; Giusti, G.; Stragier, C.
The bacterial populations located in marine sediments or in the areas of "Etang de Berre" which are regularly polluted by
petroleum rejects, are able to degrade hydrocarbons in the presence of ammonium and at a lesser degree in the presence of nitrate
as sole nitrogen source. Denitrifying activity was determinated by different methods. The obtained results lead in first
approximation to the general following conclusions: - Most of the bacteria which degrade hydrocarbons possess a constitutive
nitrate reductase, oxygene and ammonium insensible, which is different from the classical dissimilatory or assimilatory nitrate
reductase. - In these bacteria, the lack of nitrite reductase activity allows to explain the nitrite accumulation in the medium where
these...
Tipo: Text
Palavras-chave: Dénitrification; Nitrate réductase; Associations bactéries phytoplancton; Cycle de l'azote dans les sédiments
méditerranéens; Biodégradation.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00306/41740/40951.pdf
Statistical Descriptors of Ocean Regimes From the Geometric Regularity of SST Observations
Provedor de dados: 5
Autores: Ba, Sileye O.; Autret, Emmanuelle; Chapron, Bertrand; Fablet, Ronan.
In this letter, we evaluate to which extent the activity of ocean fronts can be retrieved from the geometric regularity of ocean
tracer observations. Applied to sea surface temperature (SST), we propose a method for the characterization of this geometric
regularity from curvature-based statistics along temperature level lines in front regions. To assess the effectiveness of the
proposed descriptors, we used six years (from 2003 to 2008) of daily SST observations of the regions of Agulhas in the South of
Africa and of Malvinas off the southern Brazilian coast. These experiments stress the relevance of geometric regularity features of
tracer observation at ocean surface to characterize seasonal variations in ocean regimes.
Tipo: Text
Palavras-chave: Geosciences and remote sensing; Image analysis; Image classification; Image processing; Oceans; Ocean
temperature; Sea surface.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00109/21993/20230.pdf
Interpolation par assimilation variationnelle de séquences multimodales d’images satellitaires de
l’océan
Provedor de dados: 5
Autores: Ba, Sileye O.; Corpetti, Thomas; Chapron, Bertrand; Fablet, Ronan.
In this paper we address the problem of missing data interpolation in multi-modal geophysical satellite observation sequences.
Main issues relate to the large percentage of missing data, from 20 % to 90 % for daily high-resolution observations; and the
requirement for reconstructing fine-scale structures in accordance with the underlying turbulent dynamics. To solve the missing
data interpolation problem, a variational data assimilation model is developped. Using synthetic and real ocean surface
observations, numerical and qualitative evaluations demonstrate the relevance of two key components of the proposed model: the
fusion of multi-modal observations through a geometric front-driven constraint and the proposed variational assimilation setting
using an...
Tipo: Text
Palavras-chave: Assimilation variationnelle de données; Interpolation de données manquantes; Inpainting.; Data assimilation;
Variational method; Missing data interpolation; Geophysical tracers dynamics; Multimodal interpolation.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00139/24980/23061.pdf
Innovation dans les systèmes halieutiques : du rejet à la métamorphose
Provedor de dados: 5
Autores: Babin, D; Rey, Hélène.
Taking into account the complexity in renewable natural resources exploitation makes innovation challenge researchers. This
paper transposes some theoritical aspects of innovation process in fishery context system. Before explaining "emergence
potential" and its adaptative conditions, a framework of analysis is choosed with respect to a systemic approach. A screen is
proposed and examples are exposed in fishery sector both in developing and industrialized countnes. This analysis brings out
questions about the role of developers and researchers in the fishery system. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: SEM.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-4159.pdf
The Kramis fan offshore western Algeria: the role of sediment waves in turbiditic levee growth
Provedor de dados: 5
Autores: Babonneau, Nathalie; Cattaneo, Antonio; Savoye, Bruno; Barjavel, Guy; Deverchere, Jacques; Yelles, Karim.
The Kramis deep-sea fan extends over 45 km at the base of the western Algerian continental slope between 2000 and 2550 m
water depth and covers an area of approximately 1200 km2. The Kramis Fan was initiated after Messinian time, evolved during
the Plio-Quaternary, and, is still active, as proved by submarine cable breaks during the 1954 Orléansville earthquake. The Kramis
Fan is fed by two perpendicular canyons: the Kramis Canyon and the Khadra Canyon, merging in a single E–W-oriented channel
confined at the foot of the slope. It is strongly asymmetric with a super-developed levee on the right-hand side of the channel, the
Kramis Ridge. Based on recent multibeam, side-scan sonar, and sediment core data (Maradja, 2003 and 2005, Prisma, 2004, and
Prisme,...
Tipo: Text
Palavras-chave: Algerian margin; Turbidity currents; Sediment waves; Scours.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00129/24021/21978.pdf
Direct sediment transfer from land to deep-sea: Insights into shallow multibeam bathymetry at La
Réunion Island
Provedor de dados: 5
Autores: Babonneau, Nathalie; Delacourt, Christophe; Cancouet, R.; Sisavath, Emmanuelle; Bachelery, Patrick; Mazuel, Aude;
Jorry, Stephan; Deschamps, Anne; Ammann, Jerome; Villeneuve, N.
Submarine canyon heads are key areas for understanding the triggering factors of gravity currents responsible for the transfer of
detrital sediment to the deep basins. This contribution offers a detailed picture of canyon heads off La Réunion Island, with
high-resolution multibeam bathymetry in the water depth range of 4–220 m. The present feeding of the Cilaos turbidite system,
one of the largest modern volcaniclastic systems in the world, is deduced from morphological and sedimentological interpretations
of newly acquired data. The study highlights small-scale sedimentary features indicating hydrodynamic and sedimentary
processes. A direct connexion between the Saint-Etienne river mouth and submarine canyons is evidenced by the complete
incision of the...
Tipo: Text
Palavras-chave: Submarine canyon; Canyon head; Turbidity current; Hyperpycnal flow; Coastal instability.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00156/26697/24790.pdf
Correlations between dioxin-like and indicators PCBs: Potential consequences for environmental
studies involving fish or sediment
Provedor de dados: 5
Autores: Babut, M.; Miege, C.; Villeneuve, B.; Abarnou, Alain; Duchemin, J.; Marchand, P.; Narbonne, J. F.
Among the numerous PCB congeners, most of the dioxin-like PCBs (DL-PCBs) need to be characterized by hyphenated
techniques. It has been shown in several instances that these congeners are well related to the total PCB content in fish. We
examined datasets collected mainly in France, on freshwater and marine fish and sediments. A statistical model linking DL- and
indicator PCBs was developed for a dataset composed of freshwater fishes, and proved to predict well DL-PCBs from indicator
PCBs in all other fish sets, including marine ones. Type II error rates remained low in almost all fish sets. A similar correlation
was observed in sediments. Non-dioxin-like PCBs elicit various adverse effects and represent 95% of the total PCBs. A European
guideline for them...
Tipo: Text
Palavras-chave: Sediment; Fish; Correlations; Indicator PCB; Dioxin like PCB.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6979.pdf
Etude cytologique ultrastructurale des anomalies hepatiques du loup, de la daurade, et de l'anguille,
induites par une alimentation artificielle
Provedor de dados: 5
Autores: Bac, N; Biagianti, S; Brusle, J.
In the three species Dicentrarchus labrax, Sparus auratus , and Anguilla anguilla an artificial feeding (dry pellets) disturbs liver
cells as revealed at ultrastructural level. In hepatocytes, anomalies consist of lipids storage (liposomes) considered as deviation in
fatty acids metabolism. Moreover are observed cellular alterations (mitochondrial vacuolization, nuclear pycnosis) related to
degenerative process. It is of great interest to understand wether liver modifications are just a reaction to an unbalanced feeding or
a true trophic pathology.
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Serranidae; Pisces; Natural populations; Fish culture; Lipids; Fatty acids; Cytology;
Ultrastructure; Cells; Diseases; Pellet feeds; Metabolism; Liver; Artificial feeding; Nutrition disorders.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1250.pdf
Etude des voies metaboliques des sucres chez l'huitre creuse crassostrea gigas. Implication dans les
mortalites estivales.
Provedor de dados: 5
Autores: Bacca, Helene.
Glycogen, the main form of glucose reserve in bivalves, is known to play a key energetic role in the Pacific oyster (Crassostrea
gigas) annual reproduction cycle. The aim of this work was to study the pathways of glycogen synthesis and utilization in order to
explain the relationships between energy, reproduction and oyster summer mortality events. We first characterized full length
mRNA sequences of Glycogen synthase (Cg-GYS) and Glycogen phosphorylase (Cg-GPH). Biochemical determination of
enzymatic activities and adjustment of a RNA absolute quantification method allowed us to study several regulation levels for
both markers. Quantities of Cg-GYS and Cg-GPH mRNAs showed seasonal variations, with opposite maximum periods,
corresponding to glycogen...
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-3333.pdf
Molecular cloning and seasonal expression of oyster glycogen phosphorylase and glycogen synthase
genes
Provedor de dados: 5
Autores: Bacca, Helene; Huvet, Arnaud; Fabioux, Caroline; Daniel, Jean-yves; Delaporte, Maryse; Pouvreau, Stephane; Van
Wormhoudt, A; Moal, Jeanne.
To investigate the control at the mRNA level of glycogen metabolism in the cupped oyster Crassostrea gigas, we report in the
present paper the cloning and characterization of glycogen phosphorylase and synthase cDNAs (Cg-GPH and Cg-GYS,
respectively, transcripts of main enzymes for glycogen use and storage), and their first expression profiles depending on oyster
tissues and seasons. A strong expression of both genes was observed in the labial palps and the gonad in accordance with specific
cells located in both tissues and ability to store glucose. Cg-GPH expression was also found mainly in muscle suggesting ability to
use glycogen as readily available glucose to. supply its activity. For seasonal examinations, expression of Cg-GYS and Cg-GPH
genes...
Tipo: Text
Palavras-chave: Reproduction; Regulation; Oyster; Glycogen; Expression; Gene; Energy; Crassostrea gigas; Bivalve.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-435.pdf
Nouvelles especes de Nannastacidae (Crustaces, Cumaces) dans les eaux sahariennes de l'Atlantique.
Provedor de dados: 5
Autores: Bacescu, M.; Muradian, Zarui.
While only 4 species were known for the family Nannastacidae in West Africa, a recent study has revealed 11 more species Procampylaspis maurini, P. arguini, P.thalassae, Cumella africana, Schizotrema atlantica, Campylaspis macrophthalma, C.
mauritanica, C. bonetti, C. legendrei africana, C. jonesi. Of these, S. atlantica and the last 4 Campylaspis species are new species,
and are described. Both male and female adults are described, with explanatory diagrams, and additional observations are
included. The species of Campylaspis are incorporated modified form. It is thought that this description completes not only
acquaintance with the fauna of the Saharian section of the Atlantic, but also the whole of the Atlantic Ocean.
Tipo: Text
Palavras-chave: Species; Saharian waters; Nannastacidae Crustaceans; Indexing in process.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2046.pdf
Age, growth and feeding of anchovy (Engraulis encrasicolus L.) in the Bay of Bénisaf (SW
Mediterranean , west Algerian coast)
Provedor de dados: 5
Autores: Bacha, Mahmoud; Amara, Rachid; Benmansour, N; Brylinski, Jean-michel; Moali, A; Mahe, Kelig.
Age, growth and feeding of anchovy were studied for the first time from samples collected in the Benisaf Bay (west Algerian
coast) during summer (spawning period) and autumn (recruitment period) 2007. Age structure and growth parameters were
determined by otolith (sagitta) analyses. The von Bertalanffy growth function fitted to age-length data showed that growth was
almost achieved during the first year of life. Significant growth difference was recorded between males and females. Growth
parameters were for females (L∞=17,46 cm, k=0,31 per year and t0= -3,46 years) and for male (L∞=16,67 cm, k= 0,35 per year
and t0= -3,26 years). The parameters of the otoliths (surface, length, weight and width) were significantly correlated with age and
fish length (LT)...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00012/12277/9068.pdf
Relationships between age, growth, diet and environmental parameters for anchovy (Engraulis
encrasicolus L.) in the Bay of Benisaf (SW Mediterranean, west Algerian coast)
Provedor de dados: 5
Autores: Bacha, Mahmoud; Moali, Aissa; Benmansour, Nasr-eddine; Brylinski, Jean-michel; Mahe, Kelig; Amara, Rachid.
Age, growth and diet of anchovy were studied for the first time from samples collected in the Bay of Benisaf (west Algerian
coast) during summer (spawning period) and autumn (recruitment period) 2007. Age structure and growth parameters were
determined by otolith (sagitta) analyses. The von Bertalanffy growth function fitted to age-length data showed that most of
anchovy growth is achieved during the first year of life, suggesting that this stock is primarily supported by the smallest age
groups and has a strong dependence on recruitment. There were no significant differences between males and females, and pooled
mean parameters were: L infinity = 15.61 cm, k = 0.75 per year and to, -1.32 years. Whatever the age-class anchovy is strictly
zooplanktivorous....
Tipo: Text
Palavras-chave: Engraulidae; Engraulis encrasicolus; MED; West Algeria; Anchovy; Growth; Age; Diet; Ontogenetic.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12212/9046.pdf
Evolution oligo miocène des marges du micro océan Liguro-Provençal
Provedor de dados: 5
Autores: Bache, François.
The Gulf of Lion margin has been created by an Oligo-Aquitanian rifting followed by oceanic accretion in the Provencal basin
during the Burdigalian. Two main periods have been detailed in this thesis:
• The Messinian event that needs to be
differentiated from earlier strata deposition. The event also represents a clear marker (between 7 and 5,3 Ma) within the history of
the basin. • The initial period of margin formation, from the beginning of continental extension (35-30 Ma) to oceanisation
(around 20 Ma) The database for this study has been built using all available data (seismic and wells from industry) on the shelf,
the slope and the deep basin of the Gulf of Lion. The gathering of this huge database occurred in the framework of the French
GDRMarges...
Tipo: Text
Palavras-chave: Thermal anomaly; Passive Margins; Subsidence; Rifting; Detritism; Erosion; Salinity Crisis; Miocene;
Messinian; Mediterranean; Gulf of Lion; Anomalie thermique; Marges passives; Subsidence; Rifting; Détritisme; Érosion; Crise
de salinité; Miocène; Messinien; Méditerranée; Golfe du Lion.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-4768.pdf
Messinian evaporite deposition during sea level rise in the Gulf of Lions (Western Mediterranean)
Provedor de dados: 5
Autores: Bache, Francois; Gargani, Julien; Suc, Jean-pierre; Gorini, Christian; Rabineau, Marina; Popescu, Speranta-maria;
Leroux, Estelle; Do Couto, Damien; Jouannic, Gwenael; Rubino, Jean-loup; Olivet, Jean-louis; Clauzon, Georges; Dos Reis,
Antonio Tadeu; Aslanian, Daniel.
The Messinian Salinity Crisis resulted from desiccation of the Mediterranean Sea after its isolation from the Atlantic Ocean at the
end of the Miocene. Stratal geometry tied to borehole data in the Gulf of Lions show that the pre-crisis continental shelf has been
eroded during a major sea-level fall and that sediments from this erosion have been deposited in the basin. This detrital package is
onlapped by high amplitude seismic reflectors overlain by the “Messinian Salt” and the “Upper Evaporites”. Towards the shelf,
the transition between regressive deposits and overlying onlapping sediments is characterised by a wave-ravinement surface,
suggesting that a significant part of the onlapping reflectors and overlying Messinian Evaporites were deposited during...
Tipo: Text
Palavras-chave: Messinian; Mediterranean; Gulf of Lions; Seismic stratigraphy; Evaporites.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00248/35887/34408.pdf
La crise de la salinité messinienne dans le Golfe du Lion : de la marge érodée au bassin évaporitique
Provedor de dados: 5
Autores: Bache, Francois; Gorini, C; Olivet, Jean-louis; Rabineau, Marina; Aslanian, Daniel; Baztan, Juan; Moulin, Maryline.
The Messinian erosional surface that can be observed on the Mediterranean margins is a good marker of the relative lowering of
the sea level which happened during the Messinian salinity crisis. The estimate of the volume of Miocene sediments on the Gulf
of Lion platform gives a minimum eroded volume of 5 300 Km . The eroded layer reaches one kilometre in numerous places
(Figures 2 and 3). This volume demonstrates the erosion of the continental shelf in the Gulf of Lion and does not include the
eroded volumes in the Rhone valley, the surroundings of the Gulf of Lion and on the slope. Thus, this minimum eroded volume is
logically transferred towards the basin.
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-4680.pdf
Messinian Events: View from the Provence Basin (Gulf of Lion,Western Mediterranean)
Provedor de dados: 5
Autores: Bache, François; Gorini, C; Olivet, Jean-louis; Rabineau, Marina; Aslanian, Daniel; Suc, J.p.
Though the late Miocene "Messinian Salinity Crisis" has been intensely researched along the circum- Mediterranean basins, few
studies have focused on the central part of the Mediterranean Basin and, especially, the pre-salt deposits. Within the Western
Mediterranean, the Gulf of Lion is exceptional in that its sedimentary strata have not been significantly deformed. In addition, the
Gulf of Lion is characterized by a relatively constant subsidence with continuous accommodation space for sediment
accumulation. This configuration, together with the availability of a wealth of offshore information (seismic profiles, boreholes),
enables us to precisely describe the sedimentary geometries on the margin and in the central basin. This study gives new elements
for...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6942.pdf
Miocene of the gulf of Lions (France) : a passive margin ?
Provedor de dados: 5
Autores: Bache, François; Gorini, C; Olivet, Jean-louis; Rabineau, Marina; Rubino, J.l.; Mauffret, A; Lofi, J.
The continental shelf of the "Golfe du Lion" (Gulf of Lions) has been considered for a long time as a privileged place for the study
of passive margins. However, the model usually adopted to explain the formation of this type of margin does not apparently fit the
subsidence history of the Gulf of Lions. Indeed, the evolution of this basin is characterized by a high subsidence rate, comparable
to those of Atlantic margins, although it is only 30 MY old. Previous studies show anomalies in subsidence rate in the Gulf of
Lions (Bessis and Burrus, 1986; Bessis, 1984). Seismic data from a dense grid of seismic reflection profiles acquired by the
petroleum industry (RM96, LIGO and HR Total profiles) and by IFREMER (Marion and Calmar campaigns) provided by the...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-4683.pdf
Evolution of rifted continental margins: The case of the Gulf of Lions (Western Mediterranean Basin)
Provedor de dados: 5
Autores: Bache, Francois; Olivet, Jean-louis; Gorini, Christian; Aslanian, Daniel; Labails, Cinthia; Rabineau, Marina.
The formation of rifted continental margins has long been explained by numerous physical models. However, field observations
are still lacking to validate or constrain these models. This study presents major new observations on the broad continental margin
of the Gulf of Lions, based on a large amount of varied data. Two contrasting regions characterize the thinned continental crust of
this margin. One of these regions corresponds to a narrow rift zone (40–50 km wide) that was highly thinned and stretched during
rifting. In contrast with this domain, a large part of the margin subsided slowly during rifting and then rapidly after rifting. The
thinning of this domain cannot be explained by stretching of the upper crust. We can thus recognize a zonation of...
Tipo: Text
Palavras-chave: Subsidence; Passive margins; Back-arc; Rifting; Erosion; Stretching; Thinning; Western Mediterranean; Gulf of
Lions.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00001/11230/7736.pdf
Messinian erosional and salinity crises: View from the Provence Basin (Gulf of Lions, Western
Mediterranean)
Provedor de dados: 5
Autores: Bache, Francois; Olivet, Jean-louis; Gorini, Christian; Rabineau, Marina; Baztan, Juan; Aslanian, Daniel; Suc,
Jean-pierre.
Though the late Miocene "Messinian Salinity Crisis" has been intensely researched along the circum-Mediterranean basins, few
studies have focused on the central part of the Mediterranean Basin and, especially, the pre-salt deposits. To improve our
knowledge of the Messinian events, it is imperative to better understand this domain. In this study, we provide a more complete
understanding of this central domain in the Provence Basin. We were able to recognize: a) thick marine detrital series (up to 1000
m) derived from the Messinian subaerial erosion which is partly prolongated in the distal part by b) a thick unit of deep marine
deposits (up to 800 m) prior to the evaporites; c) a thick presumed alternation of detritals and evaporites (1500 m) below the...
Tipo: Text
Palavras-chave: Erosion; Detrital deposits; Miocene; Provence Basin; Mediterranean; Gulf of Lions; Salinity Crisis; Messinian.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6870.pdf
Subsidence of the gulf of Lions continental margin (France)
Provedor de dados: 5
Autores: Bache, François; Olivet, Jean-louis; Rabineau, Marina; Gorini, C; Baztan, Juan; Aslanian, Daniel.
The Gulf of Lion margin has been created by an Oligo-Aquitanian rifting followed by oceanic accretion in the Provencal basin
during the Burdigalian. Two main periods have been detailed in this study. The Messinian event represents a clear marker
(between 7 and 5.3 Ma) within the history of the basin. The study of sedimentary geometries on the margin and in the deep basin
gave new elements for the understanding of the messinian crisis: • The first element is the identification of a thick detritic series
(up to 1000 m) at the transition between the sub aerially eroded shelf and the slope. The base of this series corresponds to the very
first event of the Messinian crisis. • The second important element is the identification of a thick stratum of lower...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-4687.pdf
A two-step process for the reflooding of the Mediterranean after the Messinian Salinity Crisis
Provedor de dados: 5
Autores: Bache, Francois; Popescu, Speranta-maria; Rabineau, Marina; Gorini, Christian; Suc, Jean-pierre; Clauzon, Georges;
Olivet, Jean-louis; Rubino, Jean-loup; Melinte-dobrinescu, Mihaela Carmen; Estrada, Ferran; Londeix, Laurent; Armijo, Rolando;
Meyer, Bertrand; Jolivet, Laurent; Jouannic, Gwenael; Leroux, Estelle; Aslanian, Daniel; Dos Reis, Antonio Tadeu; Mocochain,
Ludovic; Dumurdzanov, Nikola; Zagorchev, Ivan; Lesic, Vesna; Tomic, Dragana; Cagatay, M. Namik; Brun, Jean_pierre;
Sokoutis, Dimitrios; Csato, Istvan; Ucarkus, Gulsen; Cakir, Ziyadin.
The Messinian Salinity Crisis is well known to have resulted from a significant drop of the Mediterranean sea level. Considering
both onshore and offshore observations, the subsequent reflooding is generally thought to have been very sudden. We present here
offshore seismic evidence from the Gulf of Lions and re-visited onshore data from Italy and Turkey that lead to a new concept of
a two-step reflooding of the Mediterranean Basin after the Messinian Salinity Crisis. The refilling was first moderate and
relatively slow accompanied by transgressive ravinement, and later on very rapid, preserving the subaerial Messinian Erosional
Surface. The amplitude of these two successive rises of sea level has been estimated at =500 similar to m for the first rise and...
Tipo: Text
Palavras-chave: Paleo environmental changes; Miocene pliocene boundary; Section marche province; Earliest zanclean age;
Desiccated deep basin; Di tetto formations; Northern apennines; Southern France; Decic basin; Depositional environments.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00076/18774/16490.pdf
What can we learn about the history of oceanic shield volcanoes from deep marine sediments?
Example from La Reunion volcanoes
Provedor de dados: 5
Autores: Bachelery, Patrick; Babonneau, Nathalie; Jorry, Stephan; Mazuel, Aude.
The discovery in 2006, during the oceanographic survey FOREVER, of large volcaniclastic sedimentary systems off La Réunion
Island (western Indian ocean) revealed a new image of the evolution of oceanic shield volcanoes and their dismantling. Marine
data obtained from 2006 to 2011 during the oceanographic surveys ERODER 1 to ERODER 4 included bathymetry, acoustic
imagery, echosounding profiles, dredging and coring. Six major turbidite systems were mapped and described on the submarine
flanks of La Reunion volcanic edifice and the surrounding oceanic plate. The interpretation of sediment cores enable us to
characterise the processes of gravity-driven sediment transfer from land to deep sea and also to revisit the history of the volcanoes
of La Réunion...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00200/31118/29529.pdf
Quelques problèmes liés à l'estimation de la production secondaire. Cas des bivalves Macoma balthica
et Scrobicularia plana
Provedor de dados: 5
Autores: Bachelet, G.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00121/23183/21028.pdf
Distribution quantitative de la macrofaune benthique des sables intertidaux du bassin d'Arcachon
Provedor de dados: 5
Autores: Bachelet, G; Dauvin, Jc.
The species composition and spatial distribution of macrofaunal assemblages in intertidal sands of Arcachon Bay, on the
southwestern Atlantic coast of France, were investigated through a quantitative sampling of twenty stations representative of the
various sandy habitats found in the bay, excluding the exposed beaches. Sampling was done on a single occasion, during the
winter of 1988. A total of 150 macrobenthic species (> 1 mm) were collected. The abundance of macrofauna ranged from 89 to
52000 ind.m-2 (with a high dominance of the gastropod Hydrobia ulvae in some sites) and the biomass ranged from 1.3 to 42.5
g.m-2 dry weight. Thirteen additional species (belonging to temporary meiofauna and small macrofauna) were also sampled in the
sieving fraction...
Tipo: Text
Palavras-chave: INTERTIDAL MACROZOOBENTHOS; INFAUNAL ASSEMBLAGES; BIOMASS; ARCACHON BAY;
ORDINATION.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00100/21133/18753.pdf
Invasion of the eastern Bay of Biscay by the nassariid gastropod Cyclope neritea: origin and effects on
resident fauna
Provedor de dados: 5
Autores: Bachelet, G; Simon-bouhet, B; Desclaux, C; Garcia-meunier, P; Mairesse, G; De Montaudouin, X; Raigne, H;
Randriambao, K; Sauriau, Pierre-guy; Viard, F.
The distribution area of the nassariid gastropod Cyclope neritea (L.) includes the Mediterranean and the Black Sea, as well as the
Atlantic coasts of the southern Iberian Peninsula. The species has spread north to the eastern Bay of Biscay (Arcachon Bay in
1976, Marennes-Oleron area and Morbihan Gulf in 1983-84). This spread might be explained either by (1) a natural spread
favoured by environmental changes (e.g. an increase of temperature) or (2) a sudden range expansion due to the introduction of
individuals from distant native populations. Molecular genetic analyses based on mitochondrial markers suggest that the present
C. neritea population in Arcachon Bay has been introduced, probably unintentionally with oyster transfers, from several source...
Tipo: Text
Palavras-chave: Introduced species; Scavenging gastropods; Population genetics; Interspecific competition; Behaviour parasites.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00000/10848/7582.pdf
Les mollusques invasifs des bassins conchylicoles du littoral Manche-Atlantique : diversité et
structure génétiques des populations invasives, compétition avec les taxons indigènes, gestion du
risque pour les écosystèmes et la conchyliculture
Provedor de dados: 5
Autores: Bachelet, Pierrre; De Montaudouin, Xavier; Desclaux, C.; Mairesse, G.; Raigne, H.; Randriambao, K.; Garcia Meunier,
Pascale; Martel, C.; Pascal, P. Y.; Sauriau, Pierre-guy; Simon-bouhet, Benoît; Robert, Stephane; Geairon, Philippe; Goulletquer,
Philippe; Grangere, Karine; Guilpain, Patrice; Le Moine, Olivier; Rossi, Nadege; Seugnet, Jean-luc; Soletchnik, Patrick.
Shellfish areas usually receive a large number of introduced species. During the present project, we specially focused on 4 marine
benthic molluscs introduced in shellfish areas along the Channel and Atlantic coasts of France: the gastropods Crepidula fornicata,
Ocinebrellus inornatus and Cyclope neritea, and the bivalve Ruditapes philippinarum. Our study was conducted according to three
main axes: (i) the characterization of introduction and expansion patterns of species within their newly colonized area. In the
three invasive gastropods C. fornnicata, C. neritea and 0. inornatus, a high level of genetic diversity was detected in the French
populations which indicated a complex process of introduction (with multiple population sources or secondary...
Tipo: Text
Palavras-chave: Recommandations; Transfert; Ecosystèmes marins; Insularité; Expansion; Introduction espèces; Invasions
biologiques; Mollusques.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3305.pdf
Contamination de moules (Mytilus sp.) en milieu marin par des substances pharmaceutiques et
produits de soin
Provedor de dados: 5
Autores: Bachelot, Morgane.
Pharmaceutical and personal care products used for human health protection are detected in all aquatic ecosystems. Among them,
some compounds have physico-chemical or pharmacological caracteristics that suggest a bioaccumulation capability. It’s the case
of the UV filters, EHMC and OC, with log Kow higher than 5 or pharmaceuticals like diazepam and tetrazepam, with log Kow
higher than 2.82. The aim of these Phd works was to assess marine mussels contamination for UV filters and benzodiazepines. So,
a new analytical method was developed and validated for the determination of these compounds in mussels. EHMC and OC
analysis realized in mussels sampled in french coastal waters showed that mainly contamination came from recreational activities
in summer...
Tipo: Text
Palavras-chave: Benzodiazépines; Filtres UV; Médicaments; Moules; Contamination marine; Surveillance des eaux côtières;
Benzodiazepine; UV filters; Pharmaceuticals; Mussels; Marine contamination; Coastal water monitoring.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12259/9028.pdf
Etude de l'impact du stock d'huîtres et des mollusques compétiteurs sur les performances de
croissance de Crassostrea ggias, à l'aide d'un modèle de croissance
Provedor de dados: 5
Autores: Bacher, Cedric.
A model coupling biological and hydrodynamical processes is used in order to study the influence of the amount of cultivated
oysters (Crassostrea gigas) on growth performance in the Bay of Marennes-Oléron. The model is based on an energetic budget
equation of a mean oyster and on a transport equation of particulate organic and inorganic matter through 12 spatial boxes.
Sensitivity analysis is performed and allows computation of the impact of the distribution of oysters among the boxes on the
growth performance of a mean oyster in each box. Il is shown that, mainly in the south of the bay, individual growth is affected by
the increase in the stock. The same approach also shows that the response of individual growth to the amount of natural benthic...
Tipo: Text
Palavras-chave: Modélisation; Modéle croissance; Compétiteurs; Crassostrea gigas; Stocks huîtres.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3053.pdf
Use of an ecosystem model for the assessment of the influence of cultivated oysters (Crassostrea gigas)
on the nitrogen cycling in the Marennes-Oleron Bay
Provedor de dados: 5
Autores: Bacher, Cedric.
A model of the growth of cultivated oyster in the Marennes-Oléron bay was developped to assess the influence of the nutrients
input and of the amount of oysters on the growth performance (Railiard. 1991). The ecosystem main characteristics are: - short
residence time of the water. - high turbidity level, depending on the season, tidal level, bathymetry, currents and wind. The
turbidity acts on the primary production through light limitation and on oyster production as a food dilution factor. - presence of
high density cultivated areas on mid-tidal flats. The amount of oysters is ranging between 80 000 and 110 000 tons according to
the year. - spatial variability of the biological and physical features. - coupling effects of the physic process (transport,...
Tipo: Text
Palavras-chave: Ecosystem model; Oyster; Crassostrea gigas; Nitrogen cycling; Marennes Oleron Bay; Charente Maritime.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00102/21300/18914.pdf
Ecosystem Modelling: sensitivity of physical characteristics to spatial box design
Provedor de dados: 5
Autores: Bacher, Cedric.
The residence time of the water in different parts of the Marennes-Oléron Bay is one important characteristic of the biological
system (Raillard, 1990). For instance, the primary production potentiality of a given area depends on the local turbidity and the
residence time of the waters in that area. Further, global assessments of the nitrogen flow between the biological compartments
and inflows from the ocean or the Charente river derived from the ecosystem model by Raillard (1990), showed the predominance
of the latter term onto the former. A new hydrological model of the Marennes-Oléron Bay yielded two dimensional velocity fields
for sorne standard tidallevels: neap-tide, spring-tide, mean tide (Lazur, unpub.). These computations were the basis for the...
Tipo: Text
Palavras-chave: Ecosystem modelling; Box model; Marennes Oleron Bay; Charente Maritime.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00102/21306/18919.pdf
Production of shellfish production models
Provedor de dados: 5
Autores: Bacher, Cedric.
The first definition we could give to model is quite general : a model is any representation of the real world or what it is supposed
to be at a given moment ; it clearly depends on the knowledge about reality or part of it ; as an abstraction it is necessary based on
concepts and assumptions. This paper deals with mathematical modls only and among them, those which try to simulate biological
mechanisms (for about 15 years however, other mathematicial approaches have been developping such as adaptative strategies,
adapted from economics). Simulation alloxs to study dynamical behaviour of the elements of the ecosystem (which we denoted
the real world) defined by the modeliser. Then two main purposes may be reached by the model : - prediction and management...
Tipo: Text
Palavras-chave: Mathemical model; Ecosystem; Management; Aquaculture.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00015/12635/9523.pdf
Development of shellfish production models
Provedor de dados: 5
Autores: Bacher, Cedric.
Mathematical models for biological processes are presented as a set of tools for research, which ilave been created for specifie
tasks impact studies, energy budget, test of hypothesis. Before using it, the mecanisms involved must be analysed, depending
upon wether a whole ecosystem or one animal is studied (biological scale), physical conditions are taken into account (physical
scale), with a predetermined scale for time. The no general method for analysis can be, as conditions of studies are so different,
but sorne typical cases can show the approach of the modelizer and the recent developments of its tools.
Tipo: Text
Palavras-chave: Shellfish; Test of hypothesis; Energy budget; Impact studies; Mathematical models; Conchyliculture; Validation
hypothèse; Bilan énergétique; Etude d'impact; Modélisation.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-6220.PDF
Capacité trophique du bassin de Marennes-Oléron : couplage d'un modèle de transport particulaire
et d'un modèle de croissance de l'huître Crassostrea gigas
Provedor de dados: 5
Autores: Bacher, Cedric.
The trophic relationship between a population of cultivated oysters and potential food was modeled in Marennes-Oleron Bay.
Coupling the transport process of particulate matter with assimilation by a population of oysters was achieved through a box
mode!. Transport between boxes was based on a mass conservation equation. Parameters were derived from volumes of the boxes,
tidal movements and residual 110ws between boxes, and were computed from a numerical hydrodynamical model. Consumption,
assimilation and respiration terms were put into an energetic budget equation which enabled simulation of growth. A result of the
model was the variability of growth along an axis from North to South, which was related to the oysters' accumulated
consumption of food....
Tipo: Text
Palavras-chave: Marennes Oleron Bay; Growth; Energetic budget; Crassostrea gigas; Trophic capacity; Box model; Marennes
Oléron; Croissance; Bilan énergétique; Crassostrea gigas; Capacité trophique; Modèle en boîtes.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-2882.pdf
Intensive rearing of juvenile oysters Crassostrea gigas in an upwelling system : optimization of
biological production
Provedor de dados: 5
Autores: Bacher, Cedric; Baud, Jean-pierre.
Seasonal growth of juvenile oysters (Crassostrea gigas) kept in an intensive upwelling system was studied from 1984 to 1986 in
60 to 90-day growth experiments. Saline ground water was used to produce Skeletonema costatum which was injected as food
into the water supplying the upwelling system. Oyster density, water flow, phytoplankton concentration, temperature and
frequency of food addition were controlled. Oyster growth was analysed with multidimensional contingency tables and
correspondence analysis. The factors, in order of decreasing influence on growth, were temperature, food concentration and oyster
density. A rearing strategy was deduced from the growth analysis for summer and winter. In summer, the density of 120,000
oysters/m2, the flow rate of...
Tipo: Text
Palavras-chave: Nursery; Growth; Correspondence analysis; Multidimensional contingency table analysis; Economic efficiency;
Skeletonema costatum; Crassotrea gigas; Nourriture; Croissance; Analyse des correspondances; Table de contingence
multidimensionnelle; Rentabilité économique; Skeletonema costatum; Crassostrea gigas.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-3061.pdf
A methology for the stocks assessments of cultivated oysters among along the French Atlantic coasts
Provedor de dados: 5
Autores: Bacher, Cedric; Baud, Jean-pierre; Bodoy, Alain; Deslous-paoli, Jean-marc; Dreno, Jean-paul; Heral, Maurice; Maurer,
Daniele; Prou, Jean.
An assessment of the reared stocks of the Pacific oyster (Crassostrea gigas ) has been recently conducted on the major French
areas of molluscs culture. The methodology proposed included both estimates of densities obtained by subsampling in the field,
and aerial photographs which covered the cultivated, intertidal area. The size and the number of samples were designed to reach a
precision of 10% on the final assessment in each area. The field work consisted in weighing and counting the oyster in unit areas
of 0.5 m2 for the bottom culture or in trays or bags, for the off bottom technique. These results give a better knowledge of the
technique evolution and of the general structures in the cultivated areas.
Tipo: Text
Palavras-chave: Modeling; Estimation; Stocks; Crassostrea gigas; Oysters.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-2864.pdf
Modelling the impact of a cultivated oyster population on the nitrogen dynamics: the Thau lagoon
case (France)
Provedor de dados: 5
Autores: Bacher, Cedric; Bioteau, Hélène; Chapelle, Annie.
The Thau lagoon (France) is an important site for the cultivation of Crassastrea gigas. The relationship belween the oyster
population and the environment was assessed through a model of trophic relationships. The results represent the initial step
lowards a more precise assessment of the biological fluxes in the lagoon. This preliminary model was based on the nitrogen
dynamics among the following compartments: phytoplankton, zooplankton. oysters. detritus and dissolved inorganic nitrogen in
the water column. Two other compartments were also considered in the sediment: detritus and dissolved nitrogen. The model
considered the watershed input and seawater exchange belween the lagoon and the open sea . The parameters were estimated from
experiments on oyster...
Tipo: Text
Palavras-chave: Oyster; Crassostrea gigas; Nitrogen dynamics; Impact.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00039/15069/12403.pdf
Réseau trophique du bassin de Marennes-Oléron (rapport 1996). Région Poitou-Charentes
Provedor de dados: 5
Autores: Bacher, Cedric; Blanchard, Gerard; Bougrier, Serge; Cariou-le Gall, Valerie; Delmas, D.; Deslous Paoli, Jean-marc;
Dinet, A.; Garet, Marie-josee; Geairon, Philippe; Jonquieres, Gerard; Laisne, A.; Maffei, E.; Montagna, P. A.; De Montaudouin,
Xavier; Morin, S.; Richard, P.; Riera, Pascal; Sauriau, Pierre-guy; Vrignaud, N.
Les cartographies annuelles des biomasses microphytobenthiques ont été réalisées pour le bassin de Marennes-Oléron.
Parallèlement les cartographies des caractéristiques sédimentaires ont été établies simultanément aux cartes d'abondance et
biomasse macrofauniques en portant un effort particulier sur les densités des compétiteurs des huîtres notamment les Crépidules.
Simultanément les études des mécanismes contrôlant le réseau trophique sur la vasière de Brouage ont été poursuivies notamment
les relations entre les flux de sels nutritifs et le microphytobenthos. L'importance de ce dernier compartiment dans la nutrition de
l'huître a été clairement mis en évidence par l'utilisation des traçeurs isotopiques naturels. Enfin, les caractéristiques de filtration...
Tipo: Text
Palavras-chave: Bassin de Marennes Oléron; Microphytobenthos; Physiologie; Crassostrea gigas; Crépidules; Modèle réseau
trophique; Cartographie; Charente-Maritime.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00102/21294/18911.pdf
Use of the kriging method for the stock assessment of oysters in the Chesapeake Bay
Provedor de dados: 5
Autores: Bacher, Cedric; Chai, Ai-ling; Goulletquer, Philippe.
The krlging technique Is now employed ln more and more fields: mlnlng (Journel. 1977), hydrology (Delhomme, 197B; Shamsi et
al" 1988; Dingman et al" 1988), fishery (Conan, 1989) and ecology (Robertson, 1987; Schotzko and O'Keeffe, 1989, 1990).
Recent developments of the mathematlcal theory tend to extend the number of applications where Il may be used. Baslcally
defined for the case of a statlonary spatial process, It now encompasses more general processes assuming less and less strong
hypotheses (Intrinsic hypothesls, Intrlnsic generalised hypothesis, disjunctive krlglng). In its most general formulation, it allows to
study the spatial structure of a process including large scale or local trends. The basic idea remains to take Into account the
spatial...
Tipo: Text
Palavras-chave: Kringing technique; Stock assessment; Oysters; Crassostrea virginica; Chesapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31110/29518.pdf
Amélioration de l'évaluation des stocks de mollusques cultivés en Charente- Maritime
Provedor de dados: 5
Autores: Bacher, Cedric; Deslous-paoli, Jean-marc; Heral, Maurice; Prou, Jean.
The expansion of shellfish culture businesses (oysters, mussels, clams...) gives way to a competition for the use of limited food
resources, especially in the Marennes-Oléron basin where water circulation is slow. Increasing the amount of cultivated molluscs
leads, from a biological point of view, to:- a drop in growth performances- a rise in chronic mortalities, higher and higher, due to a
weakness in the physiological state with a lack of stocks which would have compensated the habitat seasonal shortages (end of
winter, etc...)- a greater weakness to diseases, linked to a deficient physiological state and a density rise which increases the
proximity rate and thus, parasite propagation speed.For these primary reasons, and for the future of oyster culture,...
Tipo: Text
Palavras-chave: Modélisation; Estimation; Echantillonnage; Mollusques; Marennes Oléron; Evaluation stocks.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/rapport-3841.PDF
Probabilistic approach of water residence time and connectivity using Markov Chains with
application to tidal embayments
Provedor de dados: 5
Autores: Bacher, Cedric; Filgueira, R.; Guyondet, T.
Markov Chain analysis was recently proposed to assess the time scales and preferential pathways into biological or physical
networks by computing residence time, first passage time, rates of transfer between nodes and number of passages in a node. We
propose to adapt an algorithm already published for simple systems to physical systems described with a high resolution
hydrodynamic model. The method is applied to bays and estuaries on the Eastern Coast of Canada for their interest in shellfish
aquaculture. Current velocities have been computed by using a 2 dimensional grid of elements and circulation patterns were
summarized by averaging Eulerian flows between adjacent elements. Flows and volumes allow computing probabilities of
transition between elements...
Tipo: Text
Palavras-chave: Transfer time; Transfer rate; Residual flow; Indicators; Aquaculture; Hydrodynamics.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00280/39124/37677.pdf
Bassin de la Charente et Baie associée de Marennes-Oléron
Provedor de dados: 5
Autores: Bacher, Cedric; Fillon, Alain; Prou, Jean; Heral, Maurice.
Les modèles d'apports de nitrates par le fleuve Charente, les modèles de productivité de production primaire et les modèles de
croissance des huîtres développés précédemment ont été adaptés pour préciser l'impact de la Charente en période d'étiage sur la
productivité des huîtres. L'impact de la construction éventuelle du barrage de la Charente a été évalué en fonction de son
dimensionnement et de ses modalités de gestion.
Tipo: Text
Palavras-chave: Bassin de Marennes-Oléron; Modélisation; Crassostrea gigas; Charente; Trézence.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00077/18796/16373.pdf
Use of dynamic energy budget and individual based models to simulate the dynamics of cultivated
oyster populations
Provedor de dados: 5
Autores: Bacher, Cedric; Gangnery, Aline.
We successfully tested a Dynamic Energy Budget (DEB) model of the oyster Crassostrea gigas using published environmental
data and growth data collected in Than lagoon (France). Estimates of most DEB parameters were based on independent datasets
and only two parameters were calibrated using our datasets: the shape parameter, which was used to convert body volume into
shell length, and the half-saturation coefficient, which controlled the functional response of assimilation to food concentration,
represented by chlorophyll-a concentration. The DEB model proved to be robust and generic: it was able to reproduce oyster
growth in Than lagoon and other ecosystems. We also assessed population dynamics by coupling DEB equations and an
Individual Based Model (IBM)...
Tipo: Text
Palavras-chave: Thau Lagoon; Growth variability; Harvested production; Dynamic Energy Budget; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2329.pdf
Comparaison des relations trophiques de Ruditapes philippinarum en milieux estuarien et océanique
à partir d'un modèle de croissance
Provedor de dados: 5
Autores: Bacher, Cedric; Goulletquer, Philippe.
A comparison of trophic relationships for Ruditapes philippinarum in estuarine and oceanic areas: the use of a growth mode!.
Trophic relationships in Ruditapes philippinarum were studied in estuarine and oceanic areas of Marennes-Oleron during 1985
and 1986. Principal components analysis (P.C.A.) was used to reveal the fluctuations of the descriptors from the principal axes.
Changes in dry weight were predicted in each area through an allometric growth model and were related to the principal axes
derived from the P.C.A. The results of the model were used to compare the growth in each area and to point out the descriptors
responsible for the discrepancies, such as autumnal blooms or silt resuspension. Attention was paid to the sampling strategy
related to...
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-2884.pdf
Modelling the effect of food depletion on scallop growth in Sungo Bay (China)
Provedor de dados: 5
Autores: Bacher, Cedric; Grant, Jon; Hawkins, Anthony; Fang, Jianguang; Zhu, Mingyuan; Besnard, Melanie.
Sungo Bay (China) has a mean depth of 10 m, a total area of 140 km(2) and is occupied by several types of aquaculture, whilst
opening to the ocean. The production of scallops (Chlamys farreri) cultured on long lines is estimated to exceed 50 000 tonnes
(total weight) per year. Selection of sites for scallop growth and determination of suitable rearing densities have become important
issues. In this study, we focused on the local scale (e.g. 1000 m) where rearing density, food concentration and hydrodynamics
interact. We have developed a depletion model coupling a detailed model of C. farreri feeding and growth and a one-dimensional
horizontal transport equation. The model was applied to assess the effect of some environmental parameters (e.g. food...
Tipo: Text
Palavras-chave: Chlamys farreri; Transport equation; Rearing density; Energy budget.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-570.pdf
Modèle énergétique uniboite de la croissance des huîtres (Crassostrea gigas) dans le bassin de
Marennes-Oléron
Provedor de dados: 5
Autores: Bacher, Cedric; Heral, Maurice; Deslous-paoli, Jean-marc; Razet, Daniel.
The growth of oysters (Crassostrea gigas) is modeled in order to study the trophic capacity of the Bay of Marennes Oléron. Total
seston and amount of protids, lipids, and carbohydrates converted to energy are the environmental factors taken into account.
Time series of these variables are derived during 2 yr with a daily time step from a linear regression including the tidal velocity,
the height of the water column, and the wind velocity. A model of the energetic budget based on assimilation and respiration
terms and depending on the previous time series is run to simulate the individual growth of an oyster. The knowledge of the
number of oysters, the flow of water entering the bay, and the volume of the bay allows us then to estimate that 7% of the...
Tipo: Text
Palavras-chave: Marennes Oléron; Crassostrea gigas; Huîtres; Croissance; Modélisation; Marennes Oleron bay; Crassostrea
gigas; Oysters; Growth; Modelisation.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3051.pdf
Structure spatiale et cartographie des peuplements benthiques du bassin de Marennes- Oléron :
première approche par la méthode du krigeage
Provedor de dados: 5
Autores: Bacher, Cedric; Sauriau, Pierre-guy.
Les peuplements benthiques du bassin de Marennes-Oléron ont été échantillonnées au printemps 1984 dans le but d'étudier le
stock des compétiteurs des populations de filtreurs cultivés (huître Crassostrea gigas et moule Mytilus edulis). 370 échantillons
ont été prélevés sur une surface d'étude de 18Okm2 en utilisant un plan aléatoire stratifié. Les résultats ont été regroupés en deux
groupes d'espèces ayant des stratégies nutritionnelles différentes (mollusques déposivores ou suspensivores). Ces deux groupes
trophiques ont été cartographiés, après une transformation logarithmique en utilisant la technique du krigeage. Pour chaque groupe
trois modèles de structure spatiale ont été utilisés: covariance généralisée, semi-variogrammme unidirectionnel ou...
Tipo: Text
Palavras-chave: France; Estimation stocks; Structure spatiale; Stratification; Peuplement benthique; Bassin Marennes Oléron;
Cartographie; Modélisation.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/acte-6863.pdf
Use of satellite data to predict shellfish growth
Provedor de dados: 5
Autores: Bacher, Cedric; Thomas, Yoann; Alunno-bruscia, Marianne; Mazurie, Joseph.
The advent of remote sensing in biological oceanography in the 1990s offers a very powerful tool able to capture temporal and
spatial changes of chlorophyll-a concentration and temperature at several temporal scales (decadal, inter annual and seasonal), and
at local as well as at the oceanic scale. Such data have the advantage over traditional measurements of being inexpensive, spatially
extensive, automatically repeated in time and validated. They have been very useful for phytoplankton monitoring in relation to
eutrophication in coastal waters and the number of applications in the field of coastal zone management is growing. We present
here a real case application to shellfish aquaculture. We assessed the potential for mussel aquaculture in Mont Saint...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00083/19459/17093.pdf
Cell separation by centrifugal elutriation
Provedor de dados: 5
Autores: Bachere, Evelyne; Chagot, Dominique; Grizel, Henri.
There is an ongoing need to isolate and purify ceIls in bivalve mollusc disease research. Many separation techniques differentiate
cells solely by a single factor and usually require additives in the medium that may damage live cells. Centrifugai elutriation is a
technique that separates particles by size and density simultaneously and can be conducted in physiological media without
additives. Living cells can be separated without chemical damage and, because the procedure can be conducted aseptically, cells
can be maintained in vitro after elutriation. A description of the technique, methods to determine flow rates and rotor speeds, and a
preliminary separation of oyster hyalinocytes is presented
Tipo: Text
Palavras-chave: Bivalve mollusc; Centrifugal elutriation; Cell separation.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/publication-3118.pdf
Study of a haplosporidian (Ascetospora), parasitizing the Australian flat oyster Ostrea angasi
Provedor de dados: 5
Autores: Bachere, Evelyne; Chagot, Dominique; Tige, Gilbert; Grizel, Henri.
Considering the epizootics which affect the French stock of flat oysters, Ostrea edulis (Grizel, 1985), trials to introduce an
Australian oyster, Ostrea angasi, have been undertaken. The spat produced in a hatchery from breeders imported from Australia
were reared in the south ofBrittany and in Normandy (Bougrier et al., 1986). Following mass mortalities (65% of individuals) a
haplosporidian was observed in this species. Sporogenesis of the parasite was studied using Iight and electron microscopy.
Tipo: Text
Palavras-chave: Haplosporidian; Parasitology; Pathology; Ostrea angasi; Oysters.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-3112.pdf
Bonamia ostreae (Pichot et Coll., 1979) parasite de l'huître plate : comparaison de deux méthodes de
diagnostic
Provedor de dados: 5
Autores: Bachere, Evelyne; Durand, Jean-louis; Tige, Gilbert.
The parasite, Bonamia ostreae, was diagnosed in several South Brittany flat oyster's samples, from gills tissues's prints, stained in
May-Grunwald-Giemsa and from corresponding digestive glands sections. The comparaison of results shows quantitative
differences relating to the infested oyster's rate, and qualitative differences relating to the early stages of infestation. Gill's print
technic seems more intersting for the only Bonamia ostreae diagnosis.
Tipo: Text
Palavras-chave: Pathologie; Parasite; Huître plate; Ostrea edulis; Bonamia ostreae.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/acte-5013.PDF
Receptivite de trois populations naturelles d'huitres plates Ostrea edulis L. au protozoaire Bonamia
ostreae (Pichot et al., 1980).
Provedor de dados: 5
Autores: Bachere, Evelyne; Grizel, Henri.
Experimental infections by inoculation of Bonamia ostreae have been conducted on three flat oysters Ostrea edulis populations
coming from wild beds. All of these are disease sensible and the infection rates are respectively 56, 45 and 37% for population
from Belle-Isle, La Rochelle and Thau. Receptivity values, compared by Chi-square test, have not revealed significant differences
between these three populations.
Tipo: Text
Palavras-chave: MED; France ANE; France Bonamia ostreae Protista Ostrea edulis Bivalvia Parasitic diseases Disease resistance
Oyster reefs.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-1827.pdf
Mise en évidence d'Haplosporidium sp. (Haplosporida - Haplosporidiidae) parasite de l'huître plate
Ostrea edulis L.
Provedor de dados: 5
Autores: Bachere, Evelyne; Grizel, Henri.
A new Haplosporidie has been observed in the flat oyster Ostrea edulis from the Mediterranean Sea. Different development stages
have been described in light and electron microscopy. The characteristics of the spores and especially the presence of at least four
sporal filaments enable us to distinguish this Haplosporidie from those already described in the Atlantic flat oysters. Different
haplosporidies have been described in the oyster. Some are known as being pathogenic, Minchinia costalis (Andrews et al., 1962
and 1978; Couch 1967) and Minchinia nelsoni (Haskin et al., 1966; Farley 1968 and 1975), others, identified only recently, are
considered as occasional parasites (Van Banning, 1977). During the research conducted on Bonamia ostreae (Pichot et al.,...
Tipo: Text
Palavras-chave: Pathologie; Haplosporidium; Parasite; Ostrea edulis; Huître plate.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/1982/publication-6576.PDF
Luminol-dependent chemiluminescence by hemocytes of two marine bivalves, Ostrea edulis and
Crassostrea gigas
Provedor de dados: 5
Autores: Bachere, Evelyne; Hervio, Dominique; Mialhe, Eric.
Microbicidal phagocytic function and oxidative metabolism of the hemocytes of 2 oyster species, Ostrea edulis and Crassostrea
gigas, were investigated using a luminol-enhanced chemiluminescence (technique. First, experimental parameters adapted to
marine bivalve hemocytes were established on hemolymph pools of C. gigas in order to obtain qualitatively and quantitatively
homogeneous samples and so to perform statistically comparable assays. The use of Modified Alsever Solution (allowed
hemocytes to be kept non-aggregated and in a non-stimulated state until starting the assays. A number of aliquots of 2 X 10(5)
hemocytes with an MAS final concentration of 3.5 % showed high chemiluminescent response after stimulation by zymosan
particles A particle:hemocyte...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2761.pdf
Studies of a European shellfish disease: Bonamia ostreae parasite of the flat oyster Ostrea edulis ;
control and treatment. Final Report
Provedor de dados: 5
Autores: Bachere, Evelyne; Ifremer, Unité de Pathologie, Immunologie et Génétique Moléculaire des Invertébrés Marins,
F-17390 La Tremblade, France; CEV, Centro Experimental de Vilaxoan, Conselleria de Pesca, Villagarcia de Arosa, Spain; CSIC,
Consejo Superior Investigaciones Cientificas, Peira de Bouzas S/N, Avda E. Cabello 636208, Vigo, Spain; UCC, University
College Cork, Dept of Zoology Cork, Ireland; FCR, Fisheries Research Center, Abbotstown, Castleknock, Dublin 15, Ireland; US,
University of Southampton, Dept of Oceanography Southampton S09 5NH, United Kingdom.
Bonamia ostreae, an intrahemocytic protozoan parasite infecting the oyster Ostrea edulis, is responsible for an endemic disease
affecting all intensive breeding areas of European countries. Epidemiological studies showed variable prevalences, 43% in Galicia
(Spain), from 6% to 32% in France and 45% in the most important area of Ireland. The impact of oyster transfers, handlings, high
densities have been implicated in the disease development but environmental stressors could be more involved than zootechnical
methods. The effect of water temperature, salinity and tidal exposure were particulary examined to assess stress induced changes
and determine physiological, biochemical and immunological state indices of oyster populations, which will contribute to...
Tipo: Text
Palavras-chave: Disease; Oyster; Ostrea edulis; Parasitology; Bonamia ostreae; Epidemiology.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00273/38383/36713.pdf
Strategy of researches on marine bivalve defense mechanisms
Provedor de dados: 5
Autores: Bachere, Evelyne; Mialhe, Eric; Noel, Thierry; Boulo, Viviane; Hervio, Dominique; Le Gall, Ghyslaine; Morvan,
Annie.
Because of the impact of infectious diseases in marine mollusc aquaculture, research has been initially developed in pathology in
term of epidemiology and diagnosis. The establishment of basic techniques for in vitro and in vivo studies of host/pathogen
interactions and the progresses in the field of cellular and molecular biology have permitted to undertake researches in
immunology. Parallel to fundamental interest in understanding defense mecanisms of molluscs against pathogens, applications
may be expected for resistant strains obtained by genetic engineering.
Tipo: Text
Palavras-chave: Defense mechanisms; Hosts; Immunology; Pathogens; Crassostrea gigas; Mytilus edulis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14884/12207.pdf
The new insights into the oyster antimicrobial defense: Cellular, molecular and genetic view
Provedor de dados: 5
Autores: Bachere, Evelyne; Rosa, Rafael Diego; Schmitt, Paulina; Poirier, Aurore; Merou, Nicolas; Charriere, Guillaume;
Destoumieux-garzon, Delphine.
Oysters are sessile filter feeders that live in close association with abundant and diverse communities of microorganisms that form
the oyster microbiota. In such an association, cellular and molecular mechanisms have evolved to maintain oyster homeostasis
upon stressful conditions including infection and changing environments. We give here cellular and molecular insights into the
Crassostrea gigas antimicrobial defense system with focus on antimicrobial peptides and proteins (AMPs). This review highlights
the central role of the hemocytes in the modulation and control of oyster antimicrobial response. As vehicles for AMPs and other
antimicrobial effectors, including reactive oxygen species (ROS), and together with epithelia, hemocytes provide the oyster...
Tipo: Text
Palavras-chave: Mollusk; Immunity; Antimicrobial peptide; Hemocyte; Defensin.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00254/36552/35097.pdf
Le bleuissement des diatomées et le verdissement des huîtres-revue critique
Provedor de dados: 5
Autores: Bachrach, E.
For more than a century, botanists have been focusing on a microscopic alga, a blue protoplasmic diatom causing the oysters to
turn green. In 1669, the Englishman Sprat observed for the first time the relation between the turning green of the sea bottom and
that of the oysters. In 1820, Gaillon studied the green matter covering the bottom, including the rocks and the shells, of the oyster
ponds with a microscope, and noticed that it was made up of some long mobile organisms, with pointed ends and loaded with
green pigment. He named them Vibrio ostrearia. He provided some very good explanations leading to the conclusion that these
Vibrio were the cause of the oysters' colour change. A few years later, Bory de Saint-Vincent, classifies them in the genus...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1935
URL: http://archimer.ifremer.fr/doc/1935/publication-5718.pdf
Actions réciproques des diatomées, des huîtres et du milieu
Provedor de dados: 5
Autores: Bachrach, E.; Jullien, A.; Lucciardi, N.; Richard, J.-g.
The ponds are a cultivation environment not only for the oyster but also for the rich microscopic flora and fauna which go together
with the lamellibranch. The Diatoms are the focus of the oyster farmers as they not only contribute to the molluscs' nutrition but
are also susceptible to change the colour of their gills in specific environmental conditions. We carried out in parallel an
experimental study on the oyster and on the marine diatoms, and aimed to precise the optimal conditions for these two organisms,
in order to know if they are the same for both of them.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1936
URL: http://archimer.ifremer.fr/doc/1936/publication-5754.pdf
Le phénomène du bleuissement chez les diatomées
Provedor de dados: 5
Autores: Bachrach, E.; Simonet, M.
A biological fact, which seemed to have a limited impact, has turned into a wider phenomenon since our experimental studies. In a
critical review written by one of us (1), we had already demonstrated that the turning blue of Navicula ostrearia could not be
considered as a property specific to this individual. In a dissertation (2), Hinard names other oyster bottom diatoms, less numerous
than Navicula ostrearia, but showing a blue pigment as well (Storoneis crucigerum, Amphiprora paludosa). A few years ago, one
of us, in collaboration with A. Jouvent (3) showed that, in specific environmental condition, some marine diatoms, belonging to
other genera than Navicula (Nitzschia, Grammatophora) show this blue pigmentation phenomenon. Moreover, our unpublished...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1936
URL: http://archimer.ifremer.fr/doc/1936/publication-5737.pdf
Biogeographic relationships among deep-sea hydrothermal vent faunas at global scale
Provedor de dados: 5
Autores: Bachraty, Charleyne; Legendre, P.; Desbruyeres, Daniel.
The discovery of deep-sea hydrothermal vent fauna, kilometres deep in the oceans, is a great achievement of 20th-century marine
biology. The deep-sea hydrothermal food web does not directly depend on the sun's energy. Vent communities rely primarily on
trophic associations between chemoautotrophic bacteria and consumers A small. number of endemic taxa are adapted to the
inhospitable vent environments that are distributed along ridge crests. Where these vent communities originated and how they
dispersed are among the important questions ecologists must answer. Here, by statistical analysis of the most comprehensive
database ever assembled about deep-sea hydrothermal fauna, we delineate six major hydrothermal provinces in the world ocean
and identify seven...
Tipo: Text
Palavras-chave: Multivariate regression tree; Minimum spanning tree; Deep sea hydrothermal vent communities; Coefficients of
dispersal direction; Centre of dispersal; Biogeographic provinces.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6936.pdf
Modélisation environnementale de l'estuaire de la Seine
Provedor de dados: 5
Autores: Bacq, Nicolas; Cugier, Philippe; Grasso, Florent; Le Gendre, Romain; Le Hir, Pierre; Lemoine, Jean-philippe; Riou,
Philippe; Schulz, Elisabeth; Thouvenin, Benedicte; Verney, Romaric.
Dans le cadre du programme de recherche Seine-Aval 5, différentes stratégies de modélisation numérique sont mises en place
pour aider à répondre aux questionnements scientifiques et sociétaux associés au fonctionnement physique, biologique, chimique
et écologique de l'estuaire de la Seine (ex. projets RESET et HYMOSED). Les forçages météo-marins (vent, vague, marée) et
hydrologique (débit) contrôlent le fonctionnement hydro-morpho-sédimentaire et biogéochimique de l'estuaire, modifiant ainsi les
paramètres environnementaux de l’estuaire amont jusqu’à la baie de Seine (ex. nature des fonds, courant, turbidité, salinité,
température, oxygène dissous, chlorophylle-a). La modélisation de ces paramètres, ainsi que leur évolution face à différents
scénarios...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00284/39480/37966.pdf
Spring and summer in the gulf of california - observations of surface thermal patterns
Provedor de dados: 5
Autores: Badandangon, A; Koblinsky, Cj; Baumgartner, T.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00112/22298/19973.pdf
Extrapolating Satellite Winds to Turbine Operating Heights
Provedor de dados: 5
Autores: Badger, Merete; Pena, Alfredo; Hahmann, Andrea N.; Mouche, Alexis; Hasager, Charlotte B.
Ocean wind retrievals from satellite sensors are typically performed for the standard level of 10 m. This restricts their full
exploitation for wind energy planning, which requires wind information at much higher levels where wind turbines operate. A
new method is presented for the vertical extrapolation of satellite-based wind maps. Winds near the sea surface are obtained from
satellite data and used together with an adaptation of the Monin–Obukhov similarity theory to estimate the wind speed at higher
levels. The thermal stratification of the atmosphere is taken into account through a long-term stability correction that is based on
numerical weather prediction (NWP) model outputs. The effect of the long-term stability correction on the wind profile is...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00334/44477/44158.pdf
Modèles loglinéaires pour l'étude des associations entre captures par unité d'effort et variables
hydroclimatiques
Provedor de dados: 5
Autores: Badia, Jacques; Prouzet, Patrick.
In this paper we study associations between categorical variables. We present an approach based on loglinear modelling. A better
knowledge of the influence of the intensity of tidal coefficient (cm) and of the rate of river flow (df) on catch per unit effort (cpue)
of allis shad (Alosa alosa) was obtained. Analysis performed indicated that an increase of catch per unit effort is proportionally
associated with the increase in the tidal coefficient. We also noted the influence of the rate of flow.
Tipo: Text
Palavras-chave: Modèle loglinéaire; Capture par unité d'effort; Variables environnementales; Alosa alosa; Grande alose ou alose
vraie; Loglinear model; Catch per unit effort; Environmental variables; Alosa alosa; Allis shad.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29889/28338.pdf
Bilan financier 1983-1993 coût du programme pluriannuel sur les pectinides (coquille Saint Jacques)
Provedor de dados: 5
Autores: Badia Vilato, E.; Kerael, A.; Bonnot, C.
Des actions concertées de recherche développement sur la coquille Saint-Jacques en Bretagne ont été décidées après deux années
de préparation entre 1980 et 1982, sous l'égide du G.S.G. (Groupe de Support Général de Gestion des Stocks), groupe d'experts
interorganismes (CNEXO, ISTPM, ORSTOM) placé sous l'autorité de la Direction des Pêches et Cultures Marines au Secrétariat
d'Etat à la Mer. La Rade de Brest et la Baie de Saint Brieuc ont été choisis comme sites ateliers.
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00080/19081/16676.pdf
Geophysical evidence for a transform margin offshore Western Algeria: a witness of a
subduction-transform edge propagator?
Provedor de dados: 5
Autores: Badji, Rabia; Charvis, Philippe; Bracene, Rabah; Galve, Audrey; Badsi, Madjid; Ribodetti, Alessandra; Benaissa, Zahia;
Klingelhoefer, Frauke; Medaouri, Mourad; Beslier, Marie-odile.
For the first time, a deep seismic data set acquired in the frame of the Algerian-French SPIRAL program provides new insights
regarding the origin of the westernmost Algerian margin and basin. We performed a tomographic inversion of traveltimes along a
100-km-long wide-angle seismic profile shot over 40 ocean bottom seismometers offshore Mostaganem (Northwestern Algeria).
The resulting velocity model and multichannel seismic reflection profiles show a thin (3-4 km thick) oceanic crust. The narrow
ocean-continent transition (less than 10 km wide) is bounded by vertical faults and surmounted by a narrow almost continuous
basin filled with Miocene to Quaternary sediments. This fault system, as well as the faults organized in a negative-flower structure
on the...
Tipo: Text
Palavras-chave: Seismic tomography; Continental margins: transform; Crustal structure; Africa; Europe.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00255/36670/35278.pdf
Effects of 16 pure hydrocarbons and two oils on haemocyte and haemolymphatic parameters in the
Pacific oyster, Crassostrea gigas (Thunberg)
Provedor de dados: 5
Autores: Bado Nilles, A; Gagnaire, Beatrice; Thomas-guyon, Helene; Le Floch, S; Renault, Tristan.
The in vitro effects of polycyclic aromatic hydrocarbons (PAHs) on haemocyte and haemolymphatic parameters of the Pacific
oyster, Crassostrea gigas, were tested using field concentrations (10(-7) and 10(-9) mg mL(-1)) observed in the Marennes-Oleron
Basin (Charente-Maritime, France) and high concentrations (10(-3) and 10(-5) mg mL(-1)) observed during oil spills. As a first
step, the effects of pollutants, after a 24 h contamination period, were monitored on individual and pooled haemolymph samples
and similar results were observed for both sample types. In a second step, haemolymphs from 45 oysters were withdrawn and
pooled. Eighteen pollutants were tested in vitro after a 4 and 24 h contamination period and 10 of them showed significant
modulations of...
Tipo: Text
Palavras-chave: Toxicity; PAHs; Pacific oyster; Spectrophotometry; Flow cytometry; Haemocyte activity.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4696.pdf
Effets de pollutions par hydrocarbures sur les capacités de défense d'organismes marins
Provedor de dados: 5
Autores: Bado Nilles, Anne.
The effects of PAHs, considered among the most toxic by the United States Environmental Protection Agency, were tested in
vitro and in vivo on two commercial species of the Pertuis-Charentais (Charente-Maritime, France): sea bass, Dicentrarchus
labrax, and the Pacific oyster, Crassostrea gigas. This study was carried out as part of the European project EROCIPS with the aim
of finding new immunological biomarkers caused by occasional pollution by hydrocarbons. During in vitro experimentation,
pollutants and immunological biomarkers were choosen. Thereafter, the in vitro exposures to the soluble fraction of Erika's heavy
fuel oil and its fluxant, light cycle oil, began. These exposures enable the validation of the experimental system used, with, in...
Tipo: Text
Palavras-chave: Biliary metabolites; Bioaccumulation; Toxicity; Immune défense; European sea bass; Pacific oyster; Métabolites
biliaires; Bioaccumulation; Toxicité; Capacités de défense; Hydrocarbure; Bar commun; Huître creuse.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-7401.pdf
Environment and immunomodulation : effects of the soluble fraction of Norwegian heavy fuel on the
immune system of Pacifc oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Bado-nilles, Anne; Auffret, Michel; Quentel, Claire; Le Floch, Stéphane; Arzel, Jacqueline; Gagnaire, Beatrice;
Renault, Tristan; Thomas-guyon, Hélène.
Estuaries and coastal areas are often subjected to much pollution, including pesticides and polycyclic aromatic hydrocarbons
(PAHs) produced by anthropic activities. Bay of Marennes-Oléron is an estuarine coastal zone in which there is a high level of
aquacultural production and this has adverse effects in aquatic organisms. In fact, PAHs, which are widely spread throughout
aquatic ecosystems, have a low polarity and so there is a clear tendency to bioaccumulate in marine organisms (1). The harmful
effects of such contaminants on the organism's immune system, leading to a decreased resistance to pathogens, is a relatively new
area of research and it still poorly understood. The aim of the present work was to detect the impact in vivo of PAHs on the
immune...
Tipo: Text
Palavras-chave: PaHs; Contamination; Crassostrea gigas; Oyster.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3428.pdf
Environment and immunomodulation : effects of the soluble fraction of Norwegian heavy fuel on the
immune system of Sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Bado-nilles, Anne; Quentin, Claire; Le Floch, Stéphane; Arzel, Jacqueline; Auffret, Michel; Gagnaire, Beatrice;
Renault, Tristan; Thomas-guyon, Hélène.
Estuaries and coastal areas are often subjected to much pollution, including pesticides and polycyclic aromatic hydrocarbons
(PAHs) produced by anthropic activities. Bay of Marennes-Oléron is an estuarine coastal zone in which there is a high level of
aquacultural production and this has adverse effects in aquatic organisms. In fact, PAHs, which are widely spread throughout
aquatic ecosystems, have a low polarity and so there is a clear tendency to bioaccumulate in marine organisms (1). The harmful
effects of such contaminants on the organism's immune system, leading to a decreased resistance to pathogens, is a relatively new
area of research and it still poorly understood. The aim of the present work was to detect the impact in vivo of PAHs on the
immune...
Tipo: Text
Palavras-chave: PaHs; Fish; Contamination; Dicentrarchus labrax.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3427.pdf
Compte-rendu d'expérimentation : comparaison entre l'Acal et le Frippak utilisés en nurserie de
Penaeus vannamei
Provedor de dados: 5
Autores: Bador, Régis; Boisson, Gilles; Delafosse, Jean-charles; Le Moullac, Gilles; AQUACOP.
Deux séries d'expérimentation ont été menées pour tester les performances en nurserie des deux microparticules mises au point
dans le groupe IFREMER/FA/SANOFI : l'ACAL et le FRIPPAK FLAKES. Alors qu'en survie et en croissance en taille (longueur
totale) aucune différence n'est mise en évidence, l'ACAL permet de produire des prégrossies de poids sec supérieur et nettement
plus résistantes aux chocs de salinité que le FRIPPAK.
Tipo: Text
Palavras-chave: Crevette peneide; Nutrition; Post-larve; Nurserie; Microparticule; Survie; Croissance; Résistance; Salinité;
Qualité.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00161/27209/25408.pdf
Guide de la mensuration des espèces en halieutique, poissons, mollusques, crustacés, reptiles marins,
mammifères marins
Provedor de dados: 5
Autores: Badts, Vincent; Bertrand, Jacques.
This guide presents the rules for measuring fi shes, mollusks, shellfi shes, reptiles and marine mammals applicable to the fisheries
surveys coordinated by Ifremer, including tasks carried out at the international level, in particular within the European regulation
related to the fishery data collection.
Tipo: Text
Palavras-chave: Mensuration; Taille; Poisson; Mollusque; Crustacé; Reptile marin; Mammifère marin; Halieutique; Protocole;
Measurement; Size; Fishe; Mollusk; Shellfishe; Marine reptile; Marine mammal; Fishery; Guideline.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00001/6237/7655.pdf
Manuel de l'observateur à bord des navires de pêche commerciaux
Provedor de dados: 5
Autores: Badts, Vincent; Peronnet, Isabelle; Tetard, Alain; Gaudou, Olivier.
Ce manuel détaille les missions d’observation à bord des navires de pêche commerciaux et se veut un guide opérationnel pour
l’observateur embarqué. Il décrit les tâches à réaliser et les résultats attendus. Les observations à bord des navires de pêche
commerciaux sont réalisées dans le cadre du Règlement (CE) N° 665/2008 de la Commission Européenne du 14 juillet 2008
établissant les modalités d'application du règlement (CE) n° 199/2008 du Conseil concernant l’établissement d’un cadre
communautaire pour la collecte, la gestion et l’utilisation de données dans le secteur de la pêche et le soutien aux avis
scientifiques sur la politique commune de la pêche Journal officiel des Communautés européennes, L 186 DU 15.07.2008.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00018/12895/9855.pdf
Dossier d'observation à bord des navires de pêche
Provedor de dados: 5
Autores: Badts, Vincent; Peronnet, Isabelle; Tetard, Alain; Gaudou, Olivier.
Formulaire d'enregistrement des données observées à bord des navires de pêche commerciaux.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00018/12896/9856.pdf
Evaluation de la qualité des zones de production conchylicole. Départements de l’Hérault et du Gard.
Edition 2015
Provedor de dados: 5
Autores: Baehr, Antoine.
Résumé : Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel des départements de l’Hérault et du Gard. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la
qualité microbiologique et chimique des zones de production de coquillages classées.
Tipo: Text
Palavras-chave: REMI; E. Coli; Contamination bactériologique des coquillages; ROCCH; Contaminants chimiques; Milieu
marin; Classement sanitaire des zones de production; Départements de l’Hérault et du Gard; Alertes; Pluviométrie.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40395/38896.pdf
Evaluation de la qualité des zones de production conchylicole - Départements de l’Aude et des
Pyrénées-Orientales. Edition 2015
Provedor de dados: 5
Autores: Baehr, Antoine.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel des départements de l’Aude et des Pyrénées orientales. Il présente l’ensemble des résultats obtenus, en particulier
l’estimation de la qualité microbiologique et chimique des zones de production de coquillages classées.
Tipo: Text
Palavras-chave: REMI; E. Coli; Contamination bactériologique des coquillages; ROCCH; Contaminants chimiques; Milieu
marin; Classement sanitaire des zones de production; Départements de l’Hérault et du Gard; Alertes; Pluviométrie.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40386/38893.pdf
Réseau Hydrologique Littoral Normand - RHLN - Année 2012
Provedor de dados: 5
Autores: Baehr, Antoine; Menet-nedelec, Florence; Riou, Philippe; Etourneau, Claude; Fontaine, Bruno; Francoise, Sylvaine;
Gangnery, Aline; Jacqueline, Franck; Lamort, Laure; Lesaulnier, Nadine; Maheux, Frank; Picoche, Coralie; Pierre-duplessix,
Olivier; Rabiller, Emilie; Schapira, Mathilde; Simon, Benjamin.
Le Réseau Hydrologique Littoral Normand (RHLN) a été approuvé en 2007 par ses partenaires, avec le triple objectif (1) de
maintenir le suivi de la qualité des masses d’eau et d’évaluer leur niveau d’eutrophisation en réponse aux réglementations
(Directive Nitrate, OSPAR, DCE), (2) de poursuivre la réflexion sur la définition des indicateurs DCE, puis (3) de développer les
connaissances et de fournir des données à la modélisation. Ce rapport réalise la synthèse des résultats obtenus en 2012, onzième
année depuis le début du suivi en Normandie. Le climat de cette année 2012 a été caractérisé par des températures saisonnières
proches des normales malgré des écarts de température parfois importants d’un mois sur l’autre (notamment en hiver). Par rapport
aux...
Tipo: Text
Palavras-chave: Abondance; Baie de Seine; Biomasse chlorophyllienne; Bloom; DCE; Écosystème côtier; Éléments de qualité;
Eutrophisation; Grille d’évaluation de l’eutrophisation; Hydrologie; Limitation potentielle; Normandie; Nutriments;
Phytoplancton; Production primaire; Réseau hydrologique; RHLN; Stocks hivernaux.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00211/32224/30672.pdf
The significance of colour patterns in fish for the study of some fundamental issues in behaviour.
Provedor de dados: 5
Autores: Baerends, Gerard P.
In this paper, the author shows why fish can be extremely valuable subjects for the study of a number of behaviour problems of
crucial fundamental importance. As this special suitability is based on the capacity of changing rapidly and reversibly the body
colouration and its marking patterns, he gives examples of the relation between colours and behaviour in fish.
Tipo: Text
Palavras-chave: Pisces; Colour; Behaviour.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-1998.pdf
Vortex multipoles in two-layer rotating shallow-water flows
Provedor de dados: 5
Autores: Baey, Jean-michel; Carton, Xavier.
The stability of elliptically perturbed circular vortices is investigated in a two-layer shallow-water model, with constant
background rotation. The fluid is bounded above and below by rigid and flat surfaces. The linear stability analysis shows that
elliptical perturbations are most unstable for moderate Burger numbers and vorticity shears. Shorter waves dominate for more
sheared vortices. Shallow-water and quasigeostrophic growth rates exhibit a striking similarity, except at each end of the Burger
number domain. There, cyclones (anticyclones) with finite Rossby numbers are more (less) unstable than their quasi-geostrophic
counterparts. A simple model gives a first-order trend for this bias.
Nonlinear model runs with initially perturbed vortices also...
Tipo: Text
Palavras-chave: Stability analysis; Vortex; Shallow water.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-645.pdf
An automated-method for the assessment of mercury adsorption rates on particulate suspended
matter
Provedor de dados: 5
Autores: Baeyens, W; Decadt, G; Dehairs, F; Goeyens, L.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00120/23162/21007.pdf
Study of the distribution of mercury in the various compartments of the north-sea and scheldt estuary
ecosystems
Provedor de dados: 5
Autores: Baeyens, W; Decadt, G; Elskens, I.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00122/23374/21201.pdf
Trace-metals in the eastern part of the north-sea .1. analyses and short-term distributions
Provedor de dados: 5
Autores: Baeyens, W; Gillain, G; Decadt, G; Elskens, I.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00109/22067/19709.pdf
Trace-metals in the eastern part of the north-sea .2. flows of cd, cu, hg, pb and zn through the coastal
area
Provedor de dados: 5
Autores: Baeyens, W; Gillain, G; Ronday, F; Dehairs, F.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00108/21910/19501.pdf
Influence des facteurs environmentaux sur l'aneuploïdie chez l'huître creuse, Crassostrea gigas
Provedor de dados: 5
Autores: Baffard, Vincent.
Différents travaux menés depuis 1984 chez l'huître creuse en particulier, montrent qu'i existe, dans les branchies
(Thiriot-Quiévreux C., 1982), une certaine proportion de cellules possédant un nombre de chromosomes inférieur au nombre
habituel 2N=20. Ce phénomène est l'aneuploïdie. Cette anomalie cytogénétique est mise en évidence par un comptage de
chromosomes d'une suspension cellulaire obtenue à partir de branchies. Il est apparu que le taux d'aneuploïdie affectait
négativement les taux de croissance (Leitao & al. 2001). Il existe deux types d'origines possibles à l'aneuploïdie. La première
peut être génétique (Leitao & al. 2001), et la seconde environnementale. L'effet de l'atrazine sur l'aneuploïdie a déjà fait
l'objet de travaux. Il existe...
Tipo: Text
Palavras-chave: Génétique; Aneuploïdie; Huître creuse; Crassostrea gigas; Mercure; Cadmium; Atrazine; Impact.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00033/14405/11698.pdf
L'ichtyosarcotoxisme de type ciguatera : phénomène complexe de biologie marine et humaine
Provedor de dados: 5
Autores: Bagnis, R.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00131/24206/22199.pdf
Quelques aspects bioécologiques de Gamberdiscus toxicus, peridinien benthique responsable de la
ciguareta à Tahiti
Provedor de dados: 5
Autores: Bagnis, R.; Inoue, A.; Rongeras, S.; Galonnier, M.; Bennett, J.; Chanteau, S.; Pastural, J.
We have carried out on a fringing reef of Tahiti, catching periodically ciguateric fishes, a comparative dynamic survey of the
population density of GAMBERDISCUS TOXICUS and some linked environmental factors, during a four year period. Half of the
marine parameters, i.e. temperature, salinity, dissolved NO2, NO3, PO34, SiO2, have been systematically studied according to a
weekly or a monthly rhythm ; the other parameters, i.e. pH, dissolved NH3, 02, C and B12 vitamin have been studied episodically.
The local pluviometry for the two weeks preceeding the samplings has also been measured. The statis-tical analysis of the data did
not allow us to observe any significant simple correlation between the physical or chemical parameters and the density of G,...
Tipo: Text
Palavras-chave: Toxines naturelles; Ciguatera; Peridiniens; Récifs coralliens.
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00306/41755/40966.pdf
Impact of aquaculture on the genetic structure of Mediterranean populations of Dicentrarchus
Provedor de dados: 5
Autores: Bahri Sfar, Lilia; Lemaire, Christophe; Chatain, Beatrice; Divanach, Pascal; Ben Hassine, Oum Kalthoum; Bonhomme,
Francois.
A phylogeographic analysis based on 6 polymorphic microsatellites was performed on 15 sea bass samples. five from Western
Mediterranean, seven from Eastern Mediterranean and three coming from French aquaculture stocks. Among the eastern samples,
three did not cluster according to their geographic origin but rather with the occidental group. Furthermore. a somewhat lower
allelic diversity was observed within these particular samples, indicating that they originated from a limited number of progenitors
of foreign origin. Among the aquaculture stocks, only one revealed a significant reduction of genetic variability, indicating that
these stocks are largely outbred and open to wild fishes. The fact that the use of occidental fingerlings to seed broodstocks in...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Farmed populations; Escapees; Molecular marker.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-410.pdf
N-Glycans of Phaeodactylum tricornutum Diatom and Functional Characterization of Its
N-Acetylglucosaminyltransferase I Enzyme
Provedor de dados: 5
Autores: Baiet, Berengere; Burel, Carole; Saint-jean, Bruno; Louvet, Romain; Menu-bouaouiche, Laurence; Kiefer-meyer,
Marie-christine; Mathieu-rivet, Elodie; Lefebvre, Thomas; Castel, Helene; Carlier, Aude; Cadoret, Jean-paul; Lerouge, Patrice;
Bardor, Muriel.
N-Glycosylation, a major co- and post-translational event in the synthesis of proteins in eukaryotes, is unknown in aquatic
photosynthetic microalgae. In this paper, we describe the N-glycosylation pathway in the diatom Phaeodactylum tricornutum.
Bio-informatic analysis of its genome revealed the presence of a complete set of sequences potentially encoding for proteins
involved in the synthesis of the lipid-linked Glc(3)Man(9)GlcNAc(2)-PP-dolichol N-glycan, some subunits of the
oligosaccharyltransferase complex, as well as endoplasmic reticulum glucosidases and chaperones required for protein quality
control and, finally, the alpha-mannosidase I involved in the trimming of the N-glycan precursor into Man-5 N-glycan. Moreover,
one...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00031/14184/11951.pdf
Genetic Diversity of Oilseed Rape Fields and Feral Populations in the Context of Coexistence with
GM Crops
Provedor de dados: 5
Autores: Bailleul, Diane; Ollier, Sébastien; Lecomte, Jane.
Despite growing concern about transgenes escaping from fields, few studies have analysed the genetic diversity of crops in an
agroecosystem over several years. Accurate information about the dynamics and relationship of the genetic diversity of crops in
an agroecosystem is essential for risk assessment and policies concerning the containment of genetically modified crops and their
coexistence with crops grown by conventional practices. Here, we analysed the genetic diversity of oilseed rape plants from fields
and feral populations over 4 years in an agricultural landscape of 41 km2. We used exact compatibility and maximum likelihood
assignment methods to assign these plants to cultivars. Even pure lines and hybrid cultivar seed lots contained several...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00344/45532/45091.pdf
Southern elephant seals from Kerguelen Islands confronted by Antarctic Sea ice. Changes in
movements and in diving behaviour
Provedor de dados: 5
Autores: Bailleul, Frédéric; Charrassin, Jean-benoit; Ezraty, Robert; Ardhuin, Fanny; Mcmahon, Clive R.; Field, Iain C.; Guinet,
Christophe.
The behaviour of southern elephant seals from Kerguelen Island (4950′S, 7030′E) was investigated in
relation to the oceanographic regions of the Southern Ocean. The oceanographic and the seal behaviour data, including location
and diving activity, were collected using a new generation of satellite-relayed devices measuring and transmitting pressure,
temperature, and salinity along with locations. Dive duration, maximum diving depth, time spent at the bottom of the dives, and
shape of dive profiles were compared between male and female seals, and were related to the oceanographic characteristics of
areas prospected by the seals. Most animals travelled to the Antarctic shelf. However, during winter, adult females travelled away
from the...
Tipo: Text
Palavras-chave: Mirounga leonina; Diving Behaviour; Pelagic environment; Benthic environment; Temperature profiles; Marine
ecology.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2500.pdf
Analyse des stries de croissance des post-larves de coquilles Saint-Jacques (Pecten marimus).
Méthodologie et perspectives d'application pour la description de stress d'élevage
Provedor de dados: 5
Autores: Baillon, Nathalie.
Cette étude s'inscrit dans le cadre de travaux orientés vers la compréhension des stress du passage en mer. Cette approche
s'effectue grâce à des analyses purement zootechniques réalisées par PHILIPPE (1991) et par l'observation des stries de croissance
visibles sur les coquilles du naissain de Pecten maximus. Cette étude est tout d'abord axée sur la mise au point d'une méthodologie
d'analyse de ces stries. La question est ensuite de cerner l'utilité de ces stries dans une meilleure perception du stress consécutif au
passage en mer affectant les juvéniles de coquille Saint-Jacques issus d'écloserie.
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00080/19100/16695.pdf
Du côté de l'Ecole normale supérieure (partenariat Ifremer)
Provedor de dados: 5
Autores: Bailly, Chantal.
En octobre 1991, l'IFREMER et l'École normale supérieure ont signé une convention de coopération portant sur la création
d'unités de recherche marine qui lient une équipe de l'IFREMER avec une équipe de l'École, sur le modèle des unités associées
CNRS-Universités, mais sans regroupement physique des participants.
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-7463.pdf
Quelques réflexions sur la conception japonaise de l'aménagement des pêches
Provedor de dados: 5
Autores: Bailly, Denis.
Coastal fisheries and marine cultures developed under strong biological, economical and social constraints. Among others are
limitation of space and resources, limited availibility of capital, hardship of work,... Industrial, urbanistic and touristic
development add to these constraints in coastal areas. Coherent scheme for coastal fisheries management, capture and culture, is
of an urgent need. In renewable resources and environnement economics, depletion and pollution resulting from common
ownership have been the core of the theory about fisheries management. The chronology of Japanese coastal fisheries
management system shows a different approach. In law and decision making, social and economic consequences of conflictual
uses and of their regulation...
Tipo: Text
Palavras-chave: Japan; Management; Marine cultures; Coastal fisheries; SEM; Japon; Aménagement; Cultures marines; Pêche
côtière.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/publication-4166.pdf
La Grèce, un des futurs "eldorados" de l'aquaculture en Europe ? Etat des difficultés du
développement aquacole
Provedor de dados: 5
Autores: Bailly, Denis.
Dans le pénible périple du développement de l'aquaculture nouvelle en Europe, les pays de l'Europe du Sud apparaissent comme
des concurrents sérieux. Les conditions naturelles offertes par leur localisation et le soutien actif de la CEE leur donnent des
avantages certains pour développer la plupart des productions techniquement maîtrisées, ou en voie de l'être. Parmi ceux-ci la
Grèce occupe une position de choix de par la qualité de ses sites et de par les schémas de financement des investissements
permettant d'obtenir jusqu'à 60 % d'aides. Un tour d'horizon de l'état et des difficultés de ce développement permettra de mieux
évaluer la menace d'une part, et d'autre part de présenter une approche sectorielle qui dépasse les analyses de faisabilité...
Tipo: Text
Palavras-chave: SEM.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/publication-4240.pdf
Les tendances du marché français de la salmoniculture
Provedor de dados: 5
Autores: Bailly, Denis.
Trout and salmon market is one of the major markets for fish in France. The domestic production covers the demand for trout
and it is very stable (30.000 tons) after a rapid expansion during the early eighties. With the rapid expansion of the world
production, the price for salmon has been steadily decreasing since 1986. The French market for salmon depends completely on
imports. The quantity imported increases more rapidly than the drop of the price. Salmon import is the main cause for the deficit
of the trade of seaproducts in France. Salmon production is not likely to expand significantly during the coming years. The
troutproduction sector seems to be at the point where the commercial benefits (quality control, trade scale economies,
promotion...) may...
Tipo: Text
Palavras-chave: SEM.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-4234.pdf
Aspects economiques de la gestion des bassins conchylicoles
Provedor de dados: 5
Autores: Bailly, Denis.
The biologists have presented the conclusions of their study. Some work on identifying the causes of the difficulties that the
profession is experiencing (death rates, lengthening of growth cycles, epizootics, contamination...). Others are aiming to open up
new prospects to the profession through management of shellfish stocks, genetic research and/or diversification of the farms. Each
of these aspects is manifested by economic (costs, income, profitability ...) and social (employment, hours of work ...)
consequences across the profession and the local economy. It is these consequences that we want to evaluate. To do that, the
objectives of the "Socio-economic studies in shellfish farming" programme are to define the factors making it possible to create:...
Tipo: Text
Palavras-chave: SEM.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/acte-2522.pdf
Peche et aquaculture au Japon
Provedor de dados: 5
Autores: Bailly, Denis.
Tipo: Text
Palavras-chave: SEM.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-2479.pdf
La gestion des bassins conchylicoles
Provedor de dados: 5
Autores: Bailly, Denis.
Developed at the end of the last century, oyster farming and mussel farming are the two main components of shellfish farming in
France. Recent advances in hatchery and farming techniques of species such as the clam and scallop open up new growth potential
for new farming. This is already the case for the former, because clam farming produced 560 tonnes of clams in 1987. The volume
of shellfish production, 170,000 tonnes in 1987, puts France among the foremost producing countries out of a world production of
shellfish greater than 1.5 million tonnes. In value, this production represents, depending on the year, 15 to 20 percent of the total
production of the French marine fishing and farming sector. This is therefore an extremely important business, which...
Tipo: Text
Palavras-chave: SEM.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-2215.pdf
Bioeconomic modelling and resource distribution (Workshop Report)
Provedor de dados: 5
Autores: Bailly, Denis.
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-2290.pdf
Economics of aquaculture development in greece
Provedor de dados: 5
Autores: Bailly, Denis.
(OCR non controlé) General terms of reference for the project and conclusions reached by other consultants point out that Greece
offers good opportunities to develop aquaculture to the level of a socially and economically significant industry. Aquaculture
development is stated to contribute to Government aims such as food security, preservation of foreign exchange, social and
economic development of remote rural areas and contribution to the gross national product by rational use of water resources.
The assessment of the contribution of a new industry to the national economy, as is the case for the aquaculture industry, is
difficult to make in quantitative terms. There is a lack of historical records and figures on costs and benefits covering the first...
Tipo: Text
Palavras-chave: SEM.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-2419.pdf
Evaluation of the effectiveness of the aquaculture support policies of the commission with special
reference to regulation eec 4028/86
Provedor de dados: 5
Autores: Bailly, Denis; Antona, Martine; Paquotte, Philippe.
During the 80s, aquafarming saw the development of new lines of production alongside older sectors of shellfish farming and
trout farming that have also seen significant changes. Aid from the Commission of European Communities, along with national
aid, has played an important role in the formation of this new aquafarming landscape. At the request of the Commission and under
the aegis of the European Association of Fisheries Economists (EAFE), this report presents the current state and future prospects
of growth of the main marine and continental aquafarming lines on the one hand, and evaluates the role of this community aid on
the other. These experimental or developmental lines, as well as those that can benefit from community aid are not addressed in...
Tipo: Text
Palavras-chave: SEM.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/rapport-2203.pdf
Economie et droit des ressources naturelles renouvelables de la mer - aspects théoriques et application
à la zone côtière de la manche occidentale française - tome 1 - etude economique
Provedor de dados: 5
Autores: Bailly, Denis; Boncoeur, Jean; Guyader, Olivier; Le Floc'H, Pascal.
Le premier tome de ce rapport est consacré aux aspects économiques du problème de l'aménagement des usages des ressources et
écosystèmes marins et littoraux. Il comporte deux parties : • La première offre une grille de lecture économique du problème
étudié par le programme AMURE. • La seconde présente les résultats d'une enquête menée en mai-juin 1996 sur le littoral de la
zone-atelier du programme.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00082/19300/16894.pdf
An introduction to japanese and french fisheries
Provedor de dados: 5
Autores: Bailly, Denis; Bourguignon, G; Kase, K.
Fisheries and aquaculture in Japan and France are very different in terms of scale and management schemes. Japan, a leading
country in the world for fisheries, has developed a unique mixed system of community based coastal management and licensing
schemes for off-shore and distant-water fisheries. Increasing demand, changes in consumption and the heavy constraint of access
limitation to third countries waters, make Japan more and more depending upon imports. Though few effort and access limitation
schemes are locally implemented in France, most of the management rules comply with the Common Fisheries Policy (CFP). The
basic lines are the technical measures, the Total Allowable Catches (TACs) allocated into quotas at the regional level and the
reduction of...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-4153.pdf
La consommation des produits de la mer au Japon
Provedor de dados: 5
Autores: Bailly, Denis; Henocque, Yves.
Known for the presence of its fleet on all the oceans of the globe and its position as world leader in terms of production
(12,739,000 tonnes in 1988), Japan also has one of the largest trade balance deficits of seafood. Consumption of fish, a principal
source of animal proteins in the Japanese diet, takes on many and sometimes indirect forms with fish- or fishmeal-based farming.
Tipo: Text
Palavras-chave: SEM.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-2466.pdf
Etude économique de la crevetticulture dans la Province de Lampung - Sumatra
Provedor de dados: 5
Autores: Bailly, Denis; Raux, Pascal.
Un constat s'impose : l'explosion de l'activité crevettière tropicale en Asie, n'a pas laissé entrevoir de développement durable en un
même lieu géographique au delà d'un horizon de dix ans. L'objectif est donc de définir les moyens et les actions à mettre en
oeuvre en vue d'un développement durable du secteur. Une initiation du personnel Indonésien au traitement d'enquête, à la
construction et à la gestion d'une base de données étant une condition sine qua none au suivi du projet.
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00081/19205/16800.pdf
In-situ database toolbox for short-term dispersion model validation in macro-tidal seas, application
for 2D-model
Provedor de dados: 5
Autores: Bailly Du Bois, P.; Dumas, Franck; Solier, L.; Voiseux, C.
Appropriate field data are required to check the reliability of hydrodynamic models simulating the dispersion of soluble
substances in the marine environment. This study deals with the collection of physical measurements and soluble tracer data
intended specifically for this kind of validation. The intensity of currents as well as the complexity of topography and tides around
the Cap de La Hague in the centre of the English Channel make it one of the most difficult areas to represent in terms of
hydrodynamics and dispersion. Controlled releases of tritium-in the form of HTO-are carried out in this area by the AREVA-NC
plant, providing an excellent soluble tracer. A total of 14,493 measurements were acquired to track dispersion in the hours and
days...
Tipo: Text
Palavras-chave: Modelling; Data collection; Tritium; Dispersion; Tidal dynamics; English Channel.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00077/18775/16484.pdf
TRANSMER, un modèle hydrodynamique rapide et précis pour la simulation à moyen et long terme
des transferts de radionucléides en Manche et dans le sud de la Mer du Nord
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Dumas, Franck.
TRANSMER hydrodynamic model simulates dispersion of dissolved substances in seawater at the scale of the English Channel
and the south of the North Sea with a mesh size of one kilometre and a time step of 30 minutes. It has been qualitatively and
quantitatively validated by 1400 measurement of 125Sb in seawater. This model evaluates the medium- and long-term
consequences of releases of soluble pollutants in the marine ecosystem under normal or accidental conditions, at a very low
computation cost (it takes less than one hour to simulate one year).
Tipo: Text
Palavras-chave: English Channel; North Sea; Radionuclide; Concentration; Dispersion; Dissolved substances; Seawater;
Hydrodynamic model; Modèle; Sb 125; Dispersion; Mer du Nord; Manche.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-563.pdf
Fast hydrodynamic model for medium- and long-term dispersion in seawater in the English Channel
and southern North Sea, qualitative and quantitative validation by radionuclide tracers
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Dumas, Franck.
The database for medium- and long-term model validation using Sb-125 released by the La Hague reprocessing plant includes
1400 measurements performed between 1987 and 1994 in the English Channel and the North Sea and data for each release since
1982. Antimony-125 has a conservative behaviour in water masses over a period of several years. These data can be used
qualitatively and quantitatively to compare the measured concentrations with the calculated ones and quantities of tracers. Tritium
measurements are also available for model calibration.
A two-dimensional hydrodynamic model has been developed to allow
repetitive long-term simulations. This model uses a database of residual tidal currents calculated using the Lagrangian barycentric
method [Salomon,...
Tipo: Text
Palavras-chave: North Sea; English Channel; European Continental Shelf; Tritium; Sb 125; Radioactive tracer; Wind stress;
Calibration; Modelling.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-731.pdf
Modélisation hydrodynamique de la dispersion à court terme dans une mer macrotidale: validation
par des mesures à haute résolution de radiotraceurs solubles
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Dumas, Franck.
DISPRO project aims to validate hydrodynamic models dispersion parameters by field data for the short-term (hours to week) and
short distances (100 meters to 30 km). This project is based on a 2D instantaneous currents model with a mesh size of 110 m,
coupled with high frequency field data collected in the release plume. At this step of the works, measurements confirm the
reliability of the model during six hours following a release. This validation made possible developpement of models with known
incertitude to simulate dispersion of dissolved substances in realistic conditions for normal or accidental situations in macrotidal
seas.
Tipo: Text
Palavras-chave: Validation; Tritium; Dispersion; North sea; Hydrodynamic model; Validation; Tritium; Dispersion; Manche;
Modèle.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-564.pdf
TRANSMER, hydrodynamic model for medium- and long-term simulation of radionuclides transfers
in the English Channel and southern North Sea
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Dumas, Franck.
TRANSMER hydrodynamic model simulates dispersion of dissolved substances in seawater at the scale of the English Channel
and the south of the North Sea with a mesh size of one kilometre and a time step of 30 minutes. This model evaluates the mediumand long-term consequences of releases of soluble pollutants in the marine ecosystem under normal or accidental conditions, at a
very low computation cost (it takes less than one hour to simulate one year). It has been qualitatively and quantitatively validated
by 1400 measurements of 125Sb in seawater in the English Channel and the North Sea. Budgets of measured and simulated
radionuclide quantities are balanced for theses seas. The correlation factor between individual measurements in seawater and
calculation...
Tipo: Text
Palavras-chave: Pollutant; Ecosystem; Radionuclides; Dispersion; Dissolved substances; Hydrodynamic model.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-552.pdf
Hydrodynamic modelling of short-term dispersion in a macro-tidal sea, validation by high-resolution
radionuclide tracer measurements
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Dumas, Franck; Solier, L.
This work aims to validate the dispersion parameters of hydrodynamic models for the short term (hour to week), and short
distances (100 m - 30 km), by using high precision and high frequency measurements of tritium obtained in the release plume. An
instantaneous 2D hydrodynamic model has been developed with a mesh size of 110m and an area of 5050 km. More than 7,000
samples have been collected and measured for tritium concentrations in 2002 and 2003. Currents and bathymetric measurements,
as well as drifters observations complete these measurements. Results confirm the efficiency of the hydrodynamic model, main
differences being attributable to bathymetry incertitudes. After calibration, the model gives accurate results during six hours
following a...
Tipo: Text
Palavras-chave: Dispersion parameter; Plume; Macro tidal sea; Hydrodynamic model.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-544.pdf
Improving Knowledge of Water-Mass Circulation in the English Channel Using Radioactive Tracers
Provedor de dados: 5
Autores: Bailly Du Bois, Pascal; Rozet, M; Thoral, K; Salomon, Jean-claude.
New tools are now available to make more accurate deteminations of radio-tracer distribution : - Repositioning of station
locations at the same tide reference-time, giving a homogeneous spatial data set, coupled with the possibility of interpolating and
quantifying the amounts of dissolved radioactivity flowing through the English Channel. - The first measurements of tritium (3H)
in seawater on a large scale in the English Channel demonstrate that this fully conservative radionuclide is a clearly identifiable
marker of industrial releases. Recent campaigns carried out during the FluxManche II CCE (1994) programme show the general
distribution of dissolved radionuclides 137Cs, 134Cs, 125Sb and 3H in the English Channel and Irish Sea. The re-utilization of...
Tipo: Text
Palavras-chave: English channel; Tritium; Radioactive tracer; Watre mass circulation.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-559.pdf
Réseau de surveillance des biocénoses benthiques côtières (REBENT). Bilan des actions sur la région
Bretagne pour l’année 2008
Provedor de dados: 5
Autores: Bajjouk, Touria.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00354/46508/46270.pdf
Réseau de surveillance des biocénoses benthiques côtières (REBENT). Bilan des actions sur la région
Bretagne pour l’année 2009. Edition 2010
Provedor de dados: 5
Autores: Bajjouk, Touria.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00026/13753/10875.pdf
Typologie d'habitats marins benthiques : Analyse de l’existant et propositions pour la cartographie.
Habitats côtiers de la région Bretagne - Note de synthèse n°2 - Habitats du circalittoral
Provedor de dados: 5
Autores: Bajjouk, Touria; Derrien-courtel, Sandrine; Gentil, Franck; Hily, Christian; Grall, Jacques.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00063/17416/14923.pdf
Les fonds marins de Bretagne, un patrimoine remarquable : connaître pour mieux agir
Provedor de dados: 5
Autores: Bajjouk, Touria; Duchene, Julie; Guillaumont, Brigitte; Maud, Bernard; Blanchard, Michel; Derrien-courtel, Sandrine;
Dubois, Stanislas; Grall, Jacques; Hamon, Dominique; Hily, Christian; Le Gal, Aodren; Rigolet, Carine; Rossi, Nadège; Ledard,
Michel.
Depuis la fin des années 90, les besoins de connaissance et de suivi de la biodiversité marine se sont accrus sensiblement. Les
attentes sont motivées par la nécessité de mieux évaluer aussi bien l’impact du changement climatique que celui des activités
anthropiques. Fortement convoitées, la faune et la flore benthiques sont en effet soumises à de multiples perturbations générées
par les activités humaines, soit physiquement (effets de la pêche aux engins traînants, extractions de granulats, conchyliculture,
etc.), soit résultant de pollutions chroniques (rejets urbains, industriels et agricoles) ou d’apports accidentels (pollutions
pétrolières, introduction d'espèces exogènes). Il s’agit également de contribuer aux mesures de gestion ou de protection des...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42243/41811.pdf
Classification EUNIS, Système d’information européen sur la nature : Traduction française des
habitats benthiques des Régions Atlantique et Méditerranée. Vol. 1. Habitats Littoraux
Provedor de dados: 5
Autores: Bajjouk, Touria; Guillaumont, Brigitte; Michez, Noemie; Thouin, Benoît; Croguennec, Chantal; Populus, Jacques;
Louvel-glaser, Justine; Gaudillat, Vincent; Chevalier, Claire; Tourolle, Julie; Hamon, Dominique.
Ce document est une traduction française que l’on espère transcrire au mieux les descriptions d’habitats de la classification
EUNIS. Il vient compléter la traduction en français des habitats terrestres et d’eau douce réalisée par le MNHN‑SPN (Louvel et
al., 2013). Il a pour objectif de faciliter l’appropriation de cette typologie par les acteurs concernés (scientifiques, gestionnaires ou
bureaux d’études) et favoriser les échanges de connaissance sur la biodiversité des habitats benthiques en cohérence avec ce
standard. Il s’agit dans ce document du dictionnaire de la typologie EUNIS dans sa version 2007, revue en 2012 pour des
modifications des codes de la classification paléarctique et ceux de la classification des habitats marins de la Grande Bretagne....
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00271/38222/36382.pdf
Classification EUNIS, Système d’information européen sur la nature : Traduction française des
habitats benthiques des Régions Atlantique et Méditerranée. Vol. 2. Habitats subtidaux &
complexes d’habitats
Provedor de dados: 5
Autores: Bajjouk, Touria; Guillaumont, Brigitte; Michez, Noemie; Thouin, Benoît; Croguennec, Chantal; Populus, Jacques;
Louvel-glaser, Justine; Gaudillat, Vincent; Chevalier, Claire; Tourolle, Julie; Hamon, Dominique.
Ce document est une traduction française que l’on espère transcrire au mieux les descriptions d’habitats de la classification
EUNIS. Il vient compléter la traduction en français des habitats terrestres et d’eau douce réalisée par le MNHN‑SPN (Louvel et
al., 2013). Il a pour objectif de faciliter l’appropriation de cette typologie par les acteurs concernés (scientifiques, gestionnaires ou
bureaux d’études) et favoriser les échanges de connaissance sur la biodiversité des habitats benthiques en cohérence avec ce
standard. Il s’agit dans ce document du dictionnaire de la typologie EUNIS dans sa version 2007, revue en 2012 pour des
modifications des codes de la classification paléarctique et ceux de la classification des habitats marins de la Grande Bretagne....
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00271/38223/36383.pdf
Cartographie prédictive du champ de laminaires du plateau Molène sur la base des données
physiques et biologiques
Provedor de dados: 5
Autores: Bajjouk, Touria; Rochette, Sebastien; Ehrhold, Axel; Cordier, Celine; Laurans, Martial; Tourolle, Julie; Hamdi, Anouar;
Tourolle, Julie; Gaffet, Jean-dominique; Caisey, Xavier; Vasquez, Mickael; Populus, Jacques.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00280/39159/37722.pdf
Mediterranean marine aquaculture sector. Present state of development and perspectives on
cooperation
Provedor de dados: 5
Autores: Bakela, Z; Paquotte, Philippe.
Due to good natural conditions and political will, marine aquaculture has developed recently around the Mediterranean sea and
particularly in the non European Mediterranean countries. Both private entrepreneurship and public international cooperation have
participated in this development. Most of its products are aiming at supplying European markets, where they compete not only
with similar products from the European Mediterranean countries but also with other aquaculture products from the northern
European countries. Advantages and constraints of aquaculture in the Mediterranean countries are analysed with regard to the
project of "Euro-Mediterranean partnership" which should give birth within 25 years to a large free trade area. In order to develop
a...
Tipo: Text
Palavras-chave: SEM.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/publication-4162.pdf
The Australian mariculture industry: Finfish, molluscs and crustaceans.
Provedor de dados: 5
Autores: Baker, J; Kenway, M.
Australia's interest in mariculture has been comparatively recent when compared with the developments in many other Pacific
countries. Two exceptions are native oysters, cultivated for food since the late 1880's, and pearl oysters which have been cultured,
particularly in the northern part of Australia, following the initial work of Saville-Kent.
Tipo: Text
Palavras-chave: Australia Coasts; Crustacea; Tridacna gigas; Mytilus edulis planulatus; Pinctada maxima; Ostrea angasi;
Crassostrea gigas; Saccostrea commercialis; Mollusca; Coryphaena hippurus; Lates calcarifer; Pisces; Marketing; Economics;
Research programmes; Aquaculture development.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1499.pdf
Etude préalable à la diversification d'huîtres creuses en France : isolement reproductif entre
Crassostrea gigas et C. angulata
Provedor de dados: 5
Autores: Balabaud, Karen.
Avec 30 000 tonnes d'huîtres produites chaque année, l'ostréiculture est l'activité principale du bassin de Marennes-Oléron.
Caractérisé par une très forte interaction avec les milieux professionnels de la conchyliculture, l'Ifremer se doit avant tout de
répondre à leurs questions, en particulier en matière de croissance, de reproduction et surtout en matière de mortalité de l'huître
creuse. En effet, l'huître portugaise Crassostrea angulata fut décimée de 1968 à 1972 par un agent pathogène de type iridovirus.
Pour faire face à cette disparition des populations d'huîtres japonaises Crassostrea gigas sont alors introduites en France. Mais, les
professionnels s'interrogent sur la bonne adaptation de l'huître creuse japonaise à l'environnement français et...
Tipo: Text
Palavras-chave: Génétique; Croisement; Isolement reproductif; Huîtres creuses; Hybrides; Marqueurs moléculaires; PCR;
Crassostrea gigas; Crassostrea angulata.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00033/14441/11740.pdf
Seasonal sediment movement in the tamar estuary
Provedor de dados: 5
Autores: Bale, Aj; Morris, Aw; Howland, Rjm.
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00112/22295/19970.pdf
Survie et maintien de la virulence de Salmonella Typhimurium VNC exposée simultanément à trois
facteurs stressants expérimentaux
Provedor de dados: 5
Autores: Baleux, B; Caro, A; Lesne, J; Got, P; Binard, S; Delpeuch, B.
The release of enteric pathogenic bacteria in aquatic environments poses the problem of the fate of these bacteria under the effects
of environmental factors (solar radiation, salt concentration, temperature, nutrient level, pH, competition). Frequently, these
bacterial cells, potentially pathogenic, enter into a non-culturable state on routine bacteriological plating media. However, the use
of direct detection methods (DAPI stained cells) allows the visualization of these Viable but Non Culturable cells (VNC). But,
beyond the characterization of the viability of the cells (electron transport activity, metabolic activity, membrane integrity,
structure and/or quantity of DNA), what happens with the virulence of these cells? This problem was experimentally...
Tipo: Text
Palavras-chave: Salmonella; Survie; Virulence; VNC; Stress; Salmonella; Survival; Virulence; VNC; Stress.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00325/43645/43245.pdf
Numération et approche qualitative des populations bactériennes des lagunes aménagées de Certes
(Arcachon). II. Bactéries sulfo-oxydantes photosynthétiques
Provedor de dados: 5
Autores: Baleux, B.; Caumette, P.; Trousselier, M.
Chromatiaceae are unceasing present in the sediment of Certes's lagoons. The genera isolated ares Thiocapsa (80%),Chromatium
and Ectothio- rhodospira. From august to October 1977, physical-chemical and bacteriological analysis, in red water present in
lagoons, show the Chromatiaceae proliferation and presence of hydrogen sulfide. In October 1977, a study of white water
development display the absence of sulphurbacteria and the presence of hydrogen sulfide,carbon dioxide and carbonate. The
important role of photo-trophic bacteria in the sulphur cycle are demonstrated by comparison between these waters.
Tipo: Text
Palavras-chave: Bactéries phototrophes; Eaux rouges; Eaux blanches; Lagunes; Phototrophic bacteria; Red water; White water;
Lagoons.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41678/40887.pdf
Numération et approche qualitative des populations bactériennes des lagunes aménagées de Certes
(Arcachon). I. Bactéries hétérotrophés aérobies
Provedor de dados: 5
Autores: Baleux, B.; Caumette, P.; Trousselier, M.
Numeration, biomass, distribution within time, some physiological characters and a taxonomical outline, with a standardized
micro method, of aerobic hétérotrophie bacteria isolated from sediments an waters, from fishponds of "Domaine de Certes"
(Arcachon) from june 1977 to may 1978 are described. Number of hétérotrophie bacteria evolved in a significant way, according
to seasons, and bacterial biomass is higher in the sediments than in the waters. Metabolic or physiological differences (proteolysis,
denitrification) appeared among populations due to the origin of sediments. Moreover the qualitative study pointed out
taxonomical units as Bacillus associated to seasons, or Agrobacterium associated to vegetable detritical sediments.
Tipo: Text
Palavras-chave: Lagunes; Bactéries hétérotrophes aerobies; Biomasse; Taxonomie; Micro méthode; Enzymatiques; Lagoons;
Aerobic heterotrophic bacteria; Biomass; Taxonomy; Enzymatic micro methods.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41677/40886.pdf
Elements sur le comportement experimental et numerique de la structure d'un voilier de 7m70 en
cours de navigation
Provedor de dados: 5
Autores: Baley, C; Cailler, M.
The experimental sailing boat "Mesure Z," has been designed and built on behalf of F.I.N., (the French marine industry
association). This research project has been managed in close collaboration with Bureau Veritas, Ifremer and the CEA. The GRP
hull is similar to that of a production sailing boat, but it has been designed as a transducer-hull, i.e. a hull sufficiently sensitive to
allow measurements (hull strains, acceleration, spar loads, etc), due to its structure and mechanical characteristics. This paper
presents different aspects of the experimental boat, the materials and structure of the transducer-hull, and the behaviour of the
central and bow regions of the hull during sailing.
Tipo: Text
Palavras-chave: Finite element method; Navigation; Measurement; Boating; Sailing ships; Mechanical properties; Ship
technology; Composite materials; Navigation; Comportement mécanique; Eléments finis; Mesure; Matériau composite; Voilier.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1073.pdf
Transverse tensile behaviour of unidirectional plies reinforced with flax fibres
Provedor de dados: 5
Autores: Baley, C; Perrot, Yves; Busnel, F; Guezenoc, H; Davies, Peter.
Flax provides a renewable source of fibres with good mechanical properties, which justifies its use as a reinforcement for
polymers. Composite materials made with flax which has only undergone mechanical treatments (stripping followed by combing)
results in the presence of bundles of fibres. When a unidirectional flax/polyester ply is loaded in transverse tension the damage
mechanisms are complex; cracks develop in the matrix, and at the fibre/matrix interface, but they also appear within the fibres
themselves and in the lamellae within the fibre bundles. This emphasises the highly anisotropic nature of these flax fibres, whose
average longitudinal Young's modulus is 59 GPa and whose transverse modulus is estimated here to be 8 GPa. (c) 2006 Elsevier
B.V....
Tipo: Text
Palavras-chave: Unidirectional; Transverse tensile; Polyester; Glass; Flax; Composite materials.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-6362.pdf
Mechanical properties of composites based on low styrene emission polyester resins for marine
applications
Provedor de dados: 5
Autores: Baley, Christophe; Perrot, Yves; Davies, Peter; Bourmaud, Alain; Grohens, Yves.
Glass fibre reinforced polyester composites are used extensively for hulls and decks of pleasure boats. Boat-builders must
optimise manufacturing technology, not only with respect to mechanical properties but also limiting volatile organic compounds
(VOC) emissions. One way to achieve this is through modified polyester resin formulations such as low styrene content, low
styrene emission or combinations of these. The resin matrix selection procedure is based on design specification (mechanical
behaviour) but also manufacturing requirements and cost considerations. For this application post-cure is rarely used so it is
important to optimise curing conditions. In this study the influence of the curing cycle on mechanical properties was examined
first for two...
Tipo: Text
Palavras-chave: Mat; Unidirectional; Glass fibres; Styrene emission; Mechanical properties; Transverse tensile; Unsaturated
polyester; Composite materials.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2320.pdf
Molecular Profiling of Shiga Toxin-Producing Escherichia coli and Enteropathogenic E. coli Strains
Isolated from French Coastal Environments
Provedor de dados: 5
Autores: Baliere, Charlotte; Rince, A.; Delannoy, S.; Fach, P.; Gourmelon, Michele.
Shiga toxin-producing Escherichia coli (STEC) and enteropathogenic E. coli (EPEC) strains may be responsible for food-borne
infections in humans. Twenty-eight STEC and 75 EPEC strains previously isolated from French shellfish-harvesting areas and
their watersheds and belonging to 68 distinguishable serotypes were characterized in this study. High-throughput real-time PCR
was used to search for the presence of 75 E. coli virulence-associated gene targets, and genes encoding Shiga toxin (stx) and
intimin (eae) were subtyped using PCR tests and DNA sequencing, respectively. The results showed a high level of diversity
between strains, with 17 unique virulence gene profiles for STEC and 56 for EPEC. Seven STEC and 15 EPEC strains were found
to display a large...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00344/45514/45076.pdf
Prevalence and Characterization of Shiga Toxin-Producing and Enteropathogenic Escherichia coli in
Shellfish-Harvesting Areas and Their Watersheds
Provedor de dados: 5
Autores: Baliere, Charlotte; Rince, Alain; Blanco, Jorge; Dahbi, Ghizlane; Harei, Josee; Vogeleer, Philippe; Giard,
Jean-christophe; Mariani-kurkdfian-, Patricia; Gourmelon, Michele.
Tipo: Text
Palavras-chave: STEC; EPEC; Shellfish; Water; MLST; PFGE; Biofilms.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00298/40904/39949.pdf
Successful detection of pathogenic Shiga-toxin-producing Escherichia coli in shellfish, environmental
waters and sediment using the ISO/TS-13136 method
Provedor de dados: 5
Autores: Baliere, Charlotte; Rince, Alain; Thevenot, Delphine; Gourmelon, Michele.
The presence of highly pathogenic Shiga-toxin-producing Escherichia coli (STEC) in shellfish, upstream waters and sediment
from coastal shellfish sites was evaluated using the ISO/TS-13136 method. Shellfish (oysters, mussels and cockles), water and
sediment samples were collected monthly over a period of 1 year. The method used real-time PCR detection of stx1, stx2 and eae
genes and genetic markers corresponding to the five major serogroups (O157, O26, O103, O111 and O145) on enrichment broths
and the identification of STEC when these genes and markers were detected. stx genes were detected in the broth of 33% of
shellfish batches (n = 126), 91% of water samples (n = 117) and 28% of sediment (n = 39). One stx1+, eae+ O26:H11 strain was
isolated from a...
Tipo: Text
Palavras-chave: Eae; Sediment; Shellfish; Shiga-toxin-producing Escherichia coli; Stx; Water.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00250/36124/34975.pdf
Effets du chlorure de cadmium et du chromate de plomb sur deux mollusques bivalves
Provedor de dados: 5
Autores: Ballan-dufrancais, C.; Jeantet, A.y.; Martoja, R.; Truchet, M.
La contamination expérimentale d'huîtres par le chlorure de cadmium (500 µg/1 pendant 7 et 26 jours) ne cause aucune lésion
histologique ou cytologique, mais elle accélère la déplétion testiculaire et, dans quelques cas, s'oppose au stockage du glycogène.
L'excellente résistance des huîtres est due à l'efficacité de deux types de mécanismes de détoxication. Le premier consiste en une
immobilisation du cadmium, dans les organes absorbants, dans un état chimique stable et inerte sur le plan métabolique
(phosphate ?). Le second, le plus important, fait intervenir les amoebocytes à stockage naturel de zinc dans la synthèse d'une
métallothionéine qui complexe le cadmium. Les huîtres de sites pollués de l'estuaire de la Gironde contiennent moins de cadmium
que...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00132/24329/22328.pdf
Concentration naturelle de germanium dans les noyaux et les lysosomes des cellules branchiales de
l'huître Crassostrea gigas
Provedor de dados: 5
Autores: Ballandufrancais, C; Jeantet, Ay; Truchet, M.
A systematic search for germanium was undertaken on oyster gills. Molluscs were collected at different times of the year in seven
different areas in the Channel and the Atlantic Ocean. Some of these areas are protected; others may be polluted by industrial
wastes. Oyster cells never present any signs of damage at the ultrastructural level. Lysosomes have heterogeneous densities and
frequently contain germanium, detected by electron probe microanalysis. Nuclei, which are classical in aspect, may contain
germanium, especially in the dense chromatin and nucleolus. Irrespective of period and locality, the amounts of the detected
element are of the same order. It seems unlikely that germanium originates from pollution of the marine environment or
contamination...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20424/18091.pdf
Ecologie trophique de la tortue verte Chelonia mydas dans les herbiers marins et algueraies du
sud-ouest de l’océan Indien
Provedor de dados: 5
Autores: Ballorain, Katia.
Reproduction of sea turtles primarily relies on body reserves stored during the time spent on foraging grounds prior to the nesting
season. Accordingly, the investigation of foraging behaviour of sea turtles is critical for better assessing their biology but also for
conservation issues of these endangered species. Sea turtles contribute significantly to the consuming biomass of their ecosystem
and hence to its functioning, thus providing natural indications of the health of the ecosystem. Yet the trophic ecology of sea
turtles is poorly documented because their feeding grounds remain poorly known and for most of them hardly accessible. Among
sea turtles the green turtle is the only species where sub-adults and adults are mostly herbivorous feeding on...
Tipo: Text
Palavras-chave: Tortue verte Chelonia mydas; Herbier marin; Phanérogame; Algueraie; Mayotte; Réunion; Sud-ouest de l’Océan
Indien; Écologie trophique; Green turtles Chelonia mydas; Seagrass; Algae; Mayotte; Reunion Island; Southwestern Indian
Ocean; Trophic ecology.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00031/14254/11538.pdf
Habitat use of a multispecific seagrass meadow by green turtles Chelonia mydas at Mayotte Island
Provedor de dados: 5
Autores: Ballorain, Katia; Ciccione, Stephane; Bourjea, Jerome; Grizel, Henri; Enstipp, Manfred; Georges, Jean-yves.
We investigated the habitat use in green turtles exploiting a 13-ha multispecific seagrass meadow at Mayotte Island, south-western
Indian Ocean. A phytoecological survey shows the occurrence of eight seagrass species, dominated by Halodule uninervis and
Syringodium isoetifolium, distributed according to four distinct seagrass communities along the depth gradient. Direct underwater
censuses show that green turtles occurred all over the meadow. Yet when community relative surface area was taken into account
green turtles preferentially frequented the most seaward, biomass-richer S. isoetifolium-dominated community, suggesting that
green turtles compensate for their intrinsically nutrient-poor herbivorous diet. Additionally, smaller (\80 cm standard curved...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00018/12918/10201.pdf
Résultats de quelques expériences sur l'élevage d'animaux et d'algues en aquarium d'eau de mer
fonctionnant en circuit fermé
Provedor de dados: 5
Autores: Balloy, Maxime.
The good performance of a sea water aquarium in closed circuit poses a number of problems. The conservation of animals and
vegetals can be quite difficult. Only a few coastal animals can be kept alive for several months (for example gobies and blennies,
palemons and some actinians).The related bibliography is thin and pretty vague. However, one can note that:1° all authors have
observed a change in the chemical constitution of the aquarium water, without being able to explain it;2° all attempts at keeping
alive fragile animals or plants (mostly algae) in an aquarium running in closed circuit have failed;3° unlike fresh water aquariums,
no publication, at least to our knowledge, deals with PH variations and their impact on the physiological state of the...
Tipo: Text
Ano: 1957
URL: http://archimer.ifremer.fr/doc/1957/publication-4643.pdf
Nutrient behavior in 2 contrasting scottish estuaries, the Forth and Tay
Provedor de dados: 5
Autores: Balls, Pw.
The distribution and behaviour of nutrients (nitrate, nitrite, ammonia, silicate and phosphate) have been examined over the course
of a year in two major Scottish estuaries, the Forth and Tay. Maximum concentrations of nitrate and silicate in both estuaries
occur in winter, when mixing is conservative. By contrast maximum phosphate, ammonia and nitrite concentrations (notably in
the Forth) are observed in summer, these are related to lower oxygen concentrations both within the water column and sediments.
Phosphate, ammonia and nitrite concentrations are high in the Forth relative to the Tay. Phosphate behaviour in plots for both
estuaries show some common features including removal at low salinity, mid estuary inputs and simple dilution at high salinity....
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00100/21160/18779.pdf
Listric Normal Faults
Provedor de dados: 5
Autores: Bally, A W; Bernoulli, D; Davies, Ga; Montadert, L.
The importance of listric normal faults in the formation of sedimentary basins is becoming increasingly more obvious. Based on
reflection seismic sections and surface observations, the following genetic types may be differentiated: - listric normal faults
involving the basement that are associated with some crustal attenuation. Such faults occur during the formation of rifts that often
precede the formation of passive continental margins (e.g., Gulf of Biscay, Galicia Bank); - superficial soft-sediment listric
normal faulting related to deltaic systems and/or to drifting sequences associated with the subsidence of passive continental
margins (e.g., Gulf of Mexico); - listric normal faulting associated with the genesis of accretionary wedges of active...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00246/35677/34185.pdf
The Ocean Reanalyses Intercomparison Project (ORA-IP)
Provedor de dados: 5
Autores: Balmaseda, M. A.; Hernandez, F.; Storto, A.; Palmer, M. D.; Alves, O.; Shi, L.; Smith, G. C.; Toyoda, T.; Valdivieso,
M.; Barnier, B.; Behringer, D.; Boyer, T.; Chang, Y-s.; Chepurin, G. A.; Ferry, N.; Forget, Gael; Fujii, Y.; Good, S.; Guinehut, S.;
Haines, K.; Ishikawa, Y.; Keeley, S.; Koehls, A.; Lee, T.; Martin, M. J.; Masina, S.; Masuda, S.; Meyssignac, B.; Mogensen, K.;
Parent, L.; Peterson, K. A.; Tang, Y. M.; Yin, Y.; Vernieres, G.; Wang, X.; Waters, J.; Wedd, R.; Wang, O.; Xue, Y.; Chevallier,
M.; Lemieux, J-f.; Dupont, F.; Kuragano, T.; Kamachi, M.; Awaji, T.; Caltabiano, A.; Wilmer-becker, K.; Gaillard, Fabienne.
Uncertainty in ocean analysis methods and deficiencies in the observing system are major obstacles for the reliable reconstruction
of the past ocean climate. The variety of existing ocean reanalyses is exploited in a multi-reanalysis ensemble to improve the
ocean state estimation and to gauge uncertainty levels. The ensemble-based analysis of signal-to-noise ratio allows the
identification of ocean characteristics for which the estimation is robust (such as tropical mixed-layer-depth, upper ocean heat
content), and where large uncertainty exists (deep ocean, Southern Ocean, sea ice thickness, salinity), providing guidance for
future enhancement of the observing and data assimilation systems.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39090/37655.pdf
Etudes sur la pathologie des huîtres
Provedor de dados: 5
Autores: Balouet, G.
French summary: In 1974, at the request of a group of oyster farmers in the Brittany region, the Pathology Laboratory of the
U.E.R. Medicine of Brest undertook a series of theoretical and applied research projects concerning the problem of flat oyster
digestive gland disease, due to Marteilia refringens, the primary economic problem of that time. In 1978, in the research report of
Contract C.N.E.X.O. 77/1690, the main results obtained since the beginning of the study of the parasitosis were made public. The
present report has as its objective to show: - The results obtained in 1978-1979 while monitoring the parasitosis, and most
especially the epidemiological evolution of the disease; - Information concerning the presence of other infectious diseases...
Tipo: Text
Palavras-chave: Parasite; Ostrea edulis; Oyster; Pathology.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/rapport-1927.pdf
Etude expérimentale de l'effet toxique du phosphogypse et du fluorure de sodium sur des poissons
élevés en milieu marin
Provedor de dados: 5
Autores: Balouet, G.; Baudin Laurencin, Félix.
OBJECTIFS : * Mettre en évidence un éventuel impact direct et à long terme du phosphogypse sur la sa~té des poissons en
milieu marin. * Apprécier de la même façon l'action du fluor, constituant important du phosphogypse, élément éminemment
toxique dans certaines conditions Seule l'açtion toxique directe des produits polluants est recherchée dans cette expérience: les
poissons sont maintenus dans un circuit ouvert, dans lequel le polluant est ajouté de façon permanente. Il n 'y a pas ou peu
présence, dans ce circuit dt élevage, de matériel inerte ou vivant susceptible de permettre une action indirecte des polluants. Le
présent rapport fait état des résultats obtenus au cours d'une pollution maintenue pendant 9 mois et permet donc d'envisager un
effet à...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00151/26210/24274.pdf
Etude épidémiologique et pathologique de la maladie de l'huître plate en Bretagne
Provedor de dados: 5
Autores: Balouet, G; Chastel, C; Cahour, A; Quillard, A; Poder, M.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-7155.pdf
Dynamique sédimentaire des marges de nouvelle Ecosse et des entrées de la Manche au quaternaire
Provedor de dados: 5
Autores: Baltzer, Agnès.
La comparaison des dynamiques sédimentaires sur deux portions de marges continentales, Verrill Canyon en Nouvelle Ecosse et
Mériadzek dans les Entrées de la Manche, révèle l'existence de multiples processus sédimentaires qui peuvent se diviser en deux
grandes familles : les processus de dépôt et les processus d'érosion ou de rupture.
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00034/14518/11836.pdf
Etude d’un champ de pockmarks associé à un peuplement de Haploops dans la Baie de Concarneau :
apport de la prospection géophysique THR
Provedor de dados: 5
Autores: Baltzer, Agnes; Ehrhold, Axel; Rigolet, Carinne; Dubois, Stanislas; Cordier, Celine.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00281/39232/37792.pdf
Seistec seismic profiles: A tool to differentiate gas signatures
Provedor de dados: 5
Autores: Baltzer, Agnès; Tessier, Bernadette; Nouze, Herve; Bates, R; Moore, C; Menier, D.
The presence of gas is a common feature in many seismic sections. However, the origin of the gas is often difficult to determine.
Recently acquired very high resolution seismic profiles using an IKB Seistec boomer provide useful insight to the understanding
of the gas origins in a range of environmental settings including sea lochs and coastal lagoons. The gas features are described both
from a qualitative point of view through their acoustic facies, and quantitatively through the associated seismic signal
(polarisation, amplitude). Acoustic facies include acoustic turbidity, gas "curtains" and "blankets" as well as "white fringes" and
"black shadows". All the features encountered have been related to specific gas nature generated by different sources...
Tipo: Text
Palavras-chave: Signal amplitude; Signal polarisation; Gas; Acoustic facies; Seistec profiles.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-835.pdf
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer
Provedor de dados: 5
Autores: Balzano, S.; Gourvil, P.; Siano, Raffaele; Chanoine, M.; Marie, D.; Lessard, S.; Sarno, D.; Vaulot, Daniel.
During the MALINA cruise (summer 2009), an extensive effort was undertaken to isolate phytoplankton strains from the
northeast (NE) Pacific Ocean, the Bering Strait, the Chukchi Sea, and the Beaufort Sea. In order to characterise the main
photosynthetic microorganisms occurring in the Arctic during the summer season, strains were isolated by flow cytometry sorting
(FCS) and single cell pipetting before or after phytoplankton enrichment of seawater samples. Strains were isolated both onboard
and back in the laboratory and cultured at 4 °C under light/dark conditions. Overall, we isolated and characterised by light
microscopy and 18 S rRNA gene sequencing 104 strains of photosynthetic flagellates which grouped into 21 genotypes (defined
by 99.5% 18 S rRNA...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00114/22491/20172.pdf
Calcium-carbonate saturometry by alkalinity difference measurement
Provedor de dados: 5
Autores: Balzer, W.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00121/23266/21095.pdf
Redox-turnover at the sediment water interface studied in a large bell jar system
Provedor de dados: 5
Autores: Balzer, W; Grasshoff, K; Dieckmann, P; Haardt, H; Petersohn, U.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00120/23121/20968.pdf
Trophic structure in the Gulf of Lions marine ecosystem (north-western Mediterranean Sea) and
fishing impacts
Provedor de dados: 5
Autores: Banaru, Daniela; Mellon, Capucine; Roos, David; Bigot, Jean-louis; Souplet, Arnauld; Jadaud, Angelique; Beaubrun, P.;
Fromentin, Jean-marc.
The Gulf of Lions ecosystemwas described using the Ecopath mass-balancemodel to characterise its structure and functioning and
to examine the effects of themultispecific fisheries operating in this area. The model is composed of 40 compartments, including 1
group of seabirds, 2 groups of etaceans, 18 groups of fish, 12 groups of invertebrates, 5 groups of primary producers, detritus and
discards. Input datawere based on several recurrent scientific surveys, two alternative datasets for fishing data, stock assessment
outputs, stomach content analyses and published information. Results showed that the functional groups were organised into five
trophic levels with the highest one represented by dolphins, anglerfish, Atlantic bluefin tuna, European hake and...
Tipo: Text
Palavras-chave: Gulf of Lions; Ecopath with Ecosim; Food web; Fishing impacts.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00116/22758/20614.pdf
Short time scale changes in underwater irradiance in a wind-exposed lagoon (Vaccares lagoon,
France): efficiency of infrequent field measurements of water turbidity or weather data to predict
irradiance in the water column
Provedor de dados: 5
Autores: Banas, D; Grillas, P; Auby, Isabelle; Lescuyer, F; Coulet, E; Moreteau, J; Millet, B.
High frequency water sampling in the wind-exposed Vaccares lagoon revealed frequent and rapid changes in suspended solid (SS)
concentrations in the water column. SS concentrations, sometimes higher than 800 mg l(-1), were significantly correlated with
antecedent wind conditions. Mean wind velocity during the 5-33 h before water sampling or maximal wind velocity during the
previous 8.5-22 h were good predictors of SS concentrations in the water column. Underwater irradiance at canopy level was
modeled (r(2) = 0.66, n = 7584) using the SS calculated from the relationship between SS and antecedent mean wind velocity and
the surface irradiance data measured at the weather station close to the study site. On the other hand, we have shown that in this...
Tipo: Text
Palavras-chave: Shallow lagoon; Submerged macrophyte; Wind; Light.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3690.pdf
Multibeam bathymetry and sidescan imaging of the Rivera Transform-Moctezuma spreading segment
junction, northern East Pacific Rise: New constraints on Rivera-Pacific relative plate motion
Provedor de dados: 5
Autores: Bandy, W; Michaud, F; Dyment, Jerome; Mortera Gutierrez, C; Bourgois, J; Calmus, T; Sosson, M; Ortega Ramirez, J;
Royer, J; Pontoise, B; Sichler, Bertrand.
To better understand the recent motion of the Pacific plate relative to the Rivera plate and to better define the limitations of the
existing Rivera-Pacific plate motion models for accurately predicting this motion, total-field magnetic data, multibeam
bathymetric data and sidescan sonar images were collected during the BART and FAMEX campaigns of the N/O L'Atalante
conducted in April and May 2002 in the area surrounding the Moctezuma Spreading Segment of the East Pacific Rise, located
offshore of Manzanillo, Mexico, at 106 degrees 16'W, between 17.8 degrees N and 18.5 degrees N. Among the main results are:
(1) the principle transform displacement zone of the Rivera Transform is narrow and well defined east of 107 degrees 15'W and
these azimuths should be...
Tipo: Text
Palavras-chave: Plate motions; Plate boundary morphology; Mexico; Rivera plate; Rivera Transform; East Pacific Rise.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4486.pdf
Three dimensional simulation of tide and tidal current characteristics in the East China Sea
Provedor de dados: 5
Autores: Bao, Xw; Gao, Gp; Yan, J.
With the fine horizontal (5' x 5') and vertical (15 levels) grids, a three-dimensional model, imbedded a closure turbulence
sub-model, was used to calculate the barotropic tides and tidal currents in the Bohai Sea, Yellow Sea, and East China Sea. The
computational results are in good agreement with the observed M2, S2, K1 and O1 tides in the domain. Comparison with fifty tide
gauges showed that the averaged absolute differences between the simulated and observed amplitudes are only 3.95, 2.96, 2.5 and
1.78 cm for the M2, S2, K1 and O1 tidal waves, respectively. The averaged phase-lag differences of the four tides are 6.88, 6.96,
5.96 and 6.16 degrees. The model reproduces well the tidal charts and this characteristic is discussed in detail. Comparison with...
Tipo: Text
Palavras-chave: Modèle 3D; Marée et courants de marée; Mer de Chine; 3D model; Tide; East China Sea.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43360/42855.pdf
Daily food intake of reared larvae of the european seabass (dicentrarchus labrax L.) Statistical
analysis and modelling
Provedor de dados: 5
Autores: Barahona-fernandes, Maria Helena; Conan, Gérard.
Modelling the relationship between daily food intake of larval fishes and age is useful for estimating the amount of prey required
daily in an aquaculture project and for studying changes in the metabolism of larvae throughout their growth. The information
given on daily food intake of larval marine fishes such as Sparus aurata (Alessio, 1975), Solea solea (Flücher, 1974), Pleuronectes
platessa (Riley, 1966; Howell, 1973), Engraulis mordax (Lasker, 1976; Hunter, 1976), Archosarqus rhomboidalis (Stepien, 1976)
frequently do not match, even for similar species. This is possibly because of a wide variability in individual feeding rates and of
different rearing conditions. We analyze and model the daily amount in number and in weight of prey eaten by European...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/publication-5306.pdf
Effect of different food levels on the growth and survival of laboratory-reared sea-bass larvae
(Dicentrarchus labrax (L.))
Provedor de dados: 5
Autores: Barahona-fernandes, Maria Helena; Girin, Michel.
Four batches of 7 500 larvae were reared during a period of one month in 150 l tanks at 18° C. The first one was fed on the basis
of estimates of the required daily amount of organisms that were made by one of the authors ; the second batch was fed on the
average , of the estimates made by both authors ; the third and the fourth batches were fed, respecti-vely, with,20 % above and 20
% below this average. The densities of food in the tanks varied from 0 to 16 organisms /ml before the daily meal and from 1 to 25
organisms/ml after it. There was no significant difference in the final weight or length of the larvae, although the larvae receiving.
the highest food level showed a significantly better growth at the age of 15 days. Survival seemed to be better at...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00305/41620/40829.pdf
Improved impact performance of marine sandwich panels using through-thickness reinforcement:
Experimental results
Provedor de dados: 5
Autores: Baral, N.; Cartie, D. D. R.; Partridge, I. K.; Baley, C.; Davies, Peter.
This paper presents results from a test developed to simulate the water impact (slamming) loading of sandwich boat structures. A
weighted elastomer ball is dropped from increasing heights onto rigidly supported panels until damage is detected. Results from
this test indicate that honeycomb core sandwich panels, the most widely used material for racing yacht hulls, start to damage due
to core crushing at impact energies around 550 J. Sandwich panels of the same areal weight and with the same carbon/epoxy
facings but using a novel foam core reinforced in the thickness direction with pultruded carbon fibre pins, do not show signs of
damage until above 1200 J impact energy. This suggests that these will offer significantly improved resistance to wave impact....
Tipo: Text
Palavras-chave: Honeycomb; Three-dimensional reinforcement; Impact behaviour; Mechanical testing.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00002/11311/7840.pdf
Delamination behaviour of very high modulus carbon/epoxy marine composites
Provedor de dados: 5
Autores: Baral, N; Davies, Peter; Baley, C; Bigourdan, Benoit.
This paper presents a study of the delamination resistance Of unidirectional carbon fibre reinforced epoxy composites
manufactured from prepreg for racing yacht mast applications. Fibre modulus has been varied from 290 to 640 GPa. Two
manufacturing methods, oven cure under vacuum and autoclave, were used to produce samples. Results show that delamination
resistance tinder mode I and mixed mode loading decreases as fibre modulus increases. The manufacturing route affects G, values
by modifying interlaminar layer geometry but does not change the trend of lower toughness with increasing fibre modulus. For the
pitch composites crack propagation is observed within the fibres, in addition to more usual matrix and interface cracking. For the
very high modulus...
Tipo: Text
Palavras-chave: Mixed mode; Fracture toughness; Polymers; Carbon fibres; Delamination.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3772.pdf
High modulus carbon fibre composites: Correlation between transverse tensile and mode I
interlaminar fracture properties
Provedor de dados: 5
Autores: Baral, N; Guezenoc, H; Davies, Peter; Baley, C.
This paper presents test results from mode I interlaminar fracture and transverse tensile tests on unidirectional carbon/epoxy
composites used in racing yacht construction. Fibre modulus has been varied from 380 to 640 GPa. PAN fibre reinforced
composite properties, delamination resistance (G(Ie) and G(Ip)) and transverse strain to failure, decrease as fibre modulus
increases. Composites based on the highest modulus pitch fibres show higher transverse failure strains than the highest modulus
PAN fibre composites. A distinct failure mechanism, crack propagation within the fibres, was observed for the pitch based
reinforcement. The transverse tensile tests allowed transverse fibre modulus to be estimated as 11.5 GPa for the PAN and 9 GPa
for the pitch...
Tipo: Text
Palavras-chave: Carbon fibre; Fracture; Deformation; Delamination; Composite materials.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3723.pdf
Utilisation des chaînes alimentaires naturelles et du recyclage des eaux usées dans la production à
grande échelle de juvéniles pour l'aquaculture
Provedor de dados: 5
Autores: Barbabé, G.
The production of Juveniles, key of aquaculture, needs for the alimen-tation of the larvae, to dispose plankton preys, which cannot
be supplied by rea-ring. The collections realised with adapted implements, have led to very po-sitive results In both types of
media, situated in the surroundings of Séte : mar shes and oxydation ponds (used for waste water purifying). The most abundant
plankton in these two kinds of media are uni-cellular algae, Rotlfera, Copepoda, Daphne (oxydation pont) and Aetemia (marshes).
These populations constitute a complete alimentation sequence without an equivalent for the necessities of larvae and juveniles.
Our qualitative collections (from 0,2 to 20 kg/h) plankton, dependent on the species) have allowed to rear, without any...
Tipo: Text
Palavras-chave: Collecte zooplancton; Aquaculture; Eaux usées; Zooplankton collection; Aquaculture; Waste waters.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00305/41663/40872.pdf
Etude des possibilités de culture de l'algue rouge Eucheuma Spinosum aux Antilles - Rapport n°4
Provedor de dados: 5
Autores: Barbaroux,; Dreno,; Lagin,.
Les objectifs de ces missions étaient de continuer l'étude de la biologie de l'algue et de suivre l'évolution de la culture de
l'Eucheuma sur module de culture intensive en Guadeloupe, en Martinique, et d'approfondir les connaissances des conditions de
croissance à une échelle significative à Saint Martin et à la Désirade.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00046/15732/13134.pdf
Recherches sur les algues d'intérêt commercial aux antilles Françaises
Provedor de dados: 5
Autores: Barbaroux, M.
A l'occasion d'un séjour en Martinique, M. Olivier Barbaroux, de l'équipe d'intervention pour les régions tropicales de l'ISTPM à
Nantes, a été chargé d'une mission de prospection à Saint Martin, dépendante de la Guadeloupe, pour tenter d'identifier la
présence d'algues d'intérêt commercial dans les baies et lagunes de cette Ile et plus particulièrement celles du genre Eucheu : ma
recherchées pour leur haute teneur en carraghénane.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00047/15789/13190.pdf
Compte rendu de mission à Mayotte (7 au 17 septembre 1977)
Provedor de dados: 5
Autores: Barbaroux, Olivier.
Dans la perspective d'une action sur les possibilités de développement de la pêche à Mayotte, une série de missions a été organisée
par l'I.S.T.P.M., avec le soutien financier du Secrétariat d'Etat chargé des Départements et Territoires d'Outre-Mer. Les deux
premières missions effectuées par M. LEBEAU du 2 au 18 décembre 1976 et du 4 au 13 mai 1977 n'ont pu dépasser le cadre des
entretiens avec les autorités locales et les pêcheurs et l'organisation des travaux futurs ; elles ont fait l'objet de rapports antérieurs.
Celle de M. BARBAROUX, du 7 au 17 septembre 1977 a bénéficié de moyens matériels et notamment d'une vedette mise à sa
disposition par les Services de la Préfecture. L'expert tient à souligner l'accueil et l'aide qui lui ont été réservés à cette...
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00046/15754/13156.pdf
Étude des possibilités de culture de l'algue rouge Eucheuma Spinosum aux Antilles - Rapport n°3
Provedor de dados: 5
Autores: Barbaroux, Olivier; Dreno, Jean-paul.
La mission effectuée du 8 au 24 août 1980 par M. DRENO du Centre Antilles-Guyane et M. BARBAROUX du Centre de Nantes
se situe dans le cadre des missions prévues dans le programme de recherches sur les possibilités de culture de l'algue Eucheuma
spinosum aux Antilles. Elle avait deux objectifs : * faire le point sur la biologie de l'algue et en particulier sur sa croissance; *
construire un module de culture intensive de 2 SOO m² pour évaluer les incidences financières de la culture sur une grande
échelle.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00046/15692/13094.pdf
Recherches sur les possibilités d'exploitation et de culture de l'algue rouge Eucheuma Spinosum aux
Antilles
Provedor de dados: 5
Autores: Barbaroux, Olivier; Perez, Rene.
L' industrie française des algues rouges qui occupe en 1982 le deuxième rang mondia extrait de certaines espèces d'algues telles
que Chondrus crispus, Gigartina stellata, G. skotsbergi, Eucheuma cottonii, E. spinosum, Iridea sp. des polysaccharides appelés
carraghénanes
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00045/15656/13059.pdf
Étude des possibilités de culture de l'algue rouge Eucheuma spinosum aux Antilles - Compte rendu de
la mission effectuée du 14 mars au 6 mai 1980
Provedor de dados: 5
Autores: Barbaroux, Olivier; Perez, Rene.
En 1978, lors d'une mission de prospection, un chercheur de l'Institut scientifique et technique des Pêches maritimes (I.S.T.P.M.) a
localisé un petit peuplement d'Eucheuma spinosum aux Antilles, à l'est de l'île Saint-Martin. On sait que cette algue rouge contient
un colloide (iota carraghenane) de haute qualité. Elle pourrait faire l'objet d'une culture rentable si sa productivité s'avérait
suffisante. Le but principal du programme qui a été entrepris consiste à définir cette productivité et à rechercher les lieux ainsi que
les conditions pour qu'elle soit maximale.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00046/15693/13095.pdf
L'algue rouge Eucheuma spinosum possibilités d'exploitation et de culture aux Antilles
Provedor de dados: 5
Autores: Barbaroux, Olivier; Perez, René; Dreno, Jean-paul.
L'industrie française des algues rouges qui occupe en 1983 le 2e rang mondial, extrait des polysaccharides appelés carraghénanes
de certaines espèces d'algues telles que Chondrus crispus, Gigartina stellata, G. skotsbergi, Eucheuma cottonii, E. spinosum, Iridea
sp. La principale propriété de ces carraghénanes est de réagir avec les composants du lait pour donner du gel à fine structure, d'ou
leur utilisation dans tous les dérivés actuels du lait (pâtisserie, flans, crèmes, glaces, fromages, laits chocolatés, sauces). Cette
industrie a besoin de 7 500 t d'algues sèches ; le littoral métropolitain en fournit à peine 900 t. Le reste, soit plus de 6 000 t
provient de l'étranger (Extreme-Orient, Afrique de l'Est, Amérique du Sud, Amérique du Nord). Eucheuma...
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-7039.pdf
L'adaptation ecophysiologique et sanitaire de l'ecrevisse turque Astacus leptodactylus a des milieux
saumatres: Contribution a l'astaciculture
Provedor de dados: 5
Autores: Barbe, D; Lautier, J; Vernet, G; Vey, A.
This influence of salt media on different aspects of biological cycle and on most common pathogenic agents of Turkish freshwater
crayfish Astacus leptodactylus is investigated survival and growing of juveniles O super(+) and intermediary individuals 1
super(+) are also studied. Total osmotic metabolism and reproduction, have been recorded. It appears that youngest individuals are
particularly sensitive to low salinities (7 ppt.). Intermediary ones are more resistant nevertheless salinity does not improve neither
survival nor growing. Copulation, laying and pleopod egg fixation are particularly affected by salt waters. The only promising
application of salinity parameter on astaciculture could be whether prophylactic or curative treatment with concentrated...
Tipo: Text
Palavras-chave: Astacus leptodactylus; Malacostraca; Infectious diseases; Sexual reproduction; Growth; Mortality; Survival;
Osmotic adaptations; Crayfish culture; Pathology; Metabolism; Salinity; Ecophysiology; Astaciculture; Régulation osmotique;
Reproduction; Survie; Croissance; Pathologie; Ecophysiologie; Salinité; Astacus leptodactylus; Ecrevisse.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1185.pdf
Evaluation de la qualité des zones de production conchylicole - Département de la GIRONDE Edition 2013
Provedor de dados: 5
Autores: Barbier, Claire; Auby, Isabelle.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département de la Gironde. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées pour la période 2010-2012. La qualité a pu être
estimée pour 10 zones de production conchylicole. Suivant les seuils microbiologiques du règlement (CE) n° 854/2004, sur le
Bassin d’Arcachon 2 zones suivies sont estimées de qualité A pour le groupe 3, 2 zones suivies sont estimées de qualité B pour le
groupe 3 et sont...
Tipo: Text
Palavras-chave: REMI; E. coli; Contamination bactériologique des coquillages; ROCCH; Contaminants chimiques; Milieu
marin; Classement sanitaire des zones de production; Département de la Gironde.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00151/26269/24353.pdf
Evaluation de la qualité des zones de production conchylicole - Département des LANDES - Edition
2013
Provedor de dados: 5
Autores: Barbier, Claire; Auby, Isabelle.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département des Landes. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées pour la période 2010-2012. La qualité a pu être
estimée pour la zone de production conchylicole. Suivant les seuils microbiologiques du règlement (CE) n° 854/2004, la zone
suivie sur le Lac d’Hossegor est estimé de qualité B pour le groupe 3. L’étude des tendances met en évidence une augmentation de
la contamination...
Tipo: Text
Palavras-chave: REMI; E. coli; Contamination bactériologique des coquillages; ROCCH; Contaminants chimiques; Milieu
marin; Classement sanitaire des zones de production; Département des Landes.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00151/26270/24354.pdf
Evaluation de la qualité des zones de production conchylicole. Département des Landes. Edition 2011
Provedor de dados: 5
Autores: Barbier, Claire; Cantin, Christian.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI, ce rapport dresse un bilan national et le bilan départemental pour le département des Landes. Il présente
l’ensemble des résultats obtenus, en particulier l’estimation de la qualité des zones de production de coquillages classées et
l’évolution de leur qualité.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00056/16725/14178.pdf
Evaluation de la qualité des zones de production conchylicole. Département de la Gironde. Edition
2011
Provedor de dados: 5
Autores: Barbier, Claire; Cantin, Christian.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI, ce rapport dresse un bilan national et le bilan départemental pour le département de la GIRONDE. Il
présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité des zones de production de coquillages classées
et l’évolution de leur qualité.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00056/16724/14177.pdf
Evaluation de la qualité des zones de production conchylicole. Département des Landes. Edition 2012
Provedor de dados: 5
Autores: Barbier, Claire; Duval, Magali.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département des Landes. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00073/18468/16018.pdf
Evaluation de la qualité des zones de production conchylicole. Département de la Gironde. Edition
2012
Provedor de dados: 5
Autores: Barbier, Claire; Duval, Magali.
Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle
microbiologique REMI et du réseau de surveillance chimique ROCCH, ce rapport inclut un bilan national et décrit le programme
annuel du département de la Gironde. Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité
microbiologique et chimique des zones de production de coquillages classées.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00073/18469/16019.pdf
Le littoral de la région Nord-Pas de Calais - qualité du milieu marin
Provedor de dados: 5
Autores: Barbier, Georges; Arnal, Olivier; Delattre, Jean-marie; Grossel, Hubert; Morel, Marc.
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00083/19377/16971.pdf
Sterols in aerosols, surface microlayer and subsurface water in the northeastern tropical atlantic
Provedor de dados: 5
Autores: Barbier, M; Tusseau, D; Marty, Jc; Saliot, A.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00121/23238/21072.pdf
Cyclones and Anticyclones in Seismic Imaging
Provedor de dados: 5
Autores: Barbosa Aguiar, A. C.; Menesguen, Claire; Le Gentil, Sylvie; Schopp, Richard; Carton, Xavier; Ardhuin, Fabrice.
Nearly all the subsurface eddies detected in seismic imaging of sections in the northeast Atlantic have been assumed to be
anticyclones containing Mediterranean Water (MW). Fewer MW cyclones have been observed and studied. In this study, the work
of previous numerical studies is extended to investigate some characteristics of layering surrounding MW cyclones, using a
primitive equation model with equal diffusivities for salinity and temperature to suppress the effects of double diffusion. It is
shown that, after a stable state is reached, both anticyclones and cyclones display similar patterns of layering: stacked thin layers
of high acoustic reflectivity located above and below the core of each vortex, which do not match isopycnals. The authors
conclude...
Tipo: Text
Palavras-chave: Geographic location/entity; North Atlantic Ocean; Circulation/ Dynamics; Small scale processes; Atm/Ocean
Structure/ Phenomena; Eddies; Vortices; Observational techniques and algorithms; Acoustic measurements/effects; Models and
modeling; Primitive equations model.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39190/37746.pdf
A census of Meddies in a long-term high-resolution simulation
Provedor de dados: 5
Autores: Barbosa Aguiar, Ana Claudia; Peliz, Alvaro; Carton, Xavier.
The output from a high-resolution two-decade long Mediterranean Outflow simulation is analysed here to provide a census of
Mediterranean Water eddies (aka Meddies), both anticyclones and cyclones. The formation rate of Meddies that survive for at
least 90 days is of 12 Meddies yr(-1) of which similar to 12% are cyclones. The rate of formation reaches 40 Meddies yr(-1) (30%
cyclones) when considering all the Meddies living over 15 days. About 70% of the population is born along the southwestern
Iberian slope, but several robust Meddles also originate in points of convergence of the main pathways into the open ocean. The
longest-lived Meddies propagate northwestwards, but most of the anticyclones veer southwestwards after a while. As the Meddies
drift away...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00159/27073/25474.pdf
Mediterranean outflow transports and entrainment estimates from observations and high-resolution
modelling
Provedor de dados: 5
Autores: Barbosa Aguiar, Ana; Peliz, A.; Neves, F.; Bashmachnikov, I.; Carton, Xavier.
We use cross-slope sections of direct current observations together with a high resolution numerical simulation to revisit estimates
of transports and entrainment in the Gulf of Cadiz. We provide a three dimensional picture of the outflow from the Mediterranean
into the intermediate layers of the Atlantic. In the model, the time-averaged Mediterranean Undercurrent is characterised by two
cores of zonal velocity at 8°30′8°30′W: one at 500 m (in the σ1σ1 interval 31.6-31.831.6-31.8 kg m-3) and another around 1100 m
(∼32.2∼32.2 kg m-3) with maximum westward velocity of 0.36 m s-1. A single well defined vein of saltier and warmer water
(salinity maximum ∼36.9∼36.9 psu, 1 psu = 1 kg salt/1000 kg seawater) is found attached to the slope, centred at 1300 m...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00238/34908/33221.pdf
Mass mortality in bivalves and the intricate case of the Pacific oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Barbosa-solomieu, Valerie; Renault, Tristan; Travers, Marie-agnes.
Massive mortality outbreaks in cultured bivalves have been reported worldwide and they have been associated with infection by a
range of viral and bacterial pathogens. Due to their economic and social impact, these episodes constitute a particularly sensitive
issue in Pacific oyster (Crassostrea gigas) production. Since 2008, mortality outbreaks affecting C. gigas have increased in terms
of intensity and geographic distribution. Epidemiologic surveys have lead to the incrimination of pathogens, specifically OsHV-1
and bacteria of the Vibrio genus, in particular Vibrio aestuarianus. Pathogen diversity may partially account for the variability in
the outcome of infections. Host factors (age, reproductive status…) including their genetic background that has...
Tipo: Text
Palavras-chave: Pacific oyster; Spat; OsHV-1; Vibrio aestuarianus; Mortality.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00274/38534/37051.pdf
Demographic response of a population of white-chinned petrels Procellaria aequinoctialis to climate
and longline fishery bycatch
Provedor de dados: 5
Autores: Barbraud, Christophe; Marteau, Cedric; Ridoux, Vincent; Delord, Karine; Weimerskirch, Henri.
1. Fisheries can affect non-target species through bycatch, and climate change may act simultaneously on their population
dynamics. Estimating the relative impact of fisheries and climate on non-target species remains a challenge for many populations
because the spatio-temporal distribution of individuals remains poorly known and available demographic information is
incomplete. <br>2. We used population survey data, capture-mark-recapture methods, population modelling and the
demographic invariant method to investigate the effects of climate and fisheries on the demography of a predator species affected
by bycatch. These complementary approaches were used to help account for different sources of uncertainty. <br>3. The
white-chinned petrel...
Tipo: Text
Palavras-chave: Survival; Demographic invariants; El Nino; Longline fishing; Population model; Procellaria aequinoctialis;
Recruitment.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00000/11048/11321.pdf
Disponibilité à des fins d'aquaculture des différents âges de thon rouge en atlantique est
Provedor de dados: 5
Autores: Bard, François-xavier.
In order to clear up possibilities to get bluefin tuna of various age in Eastern Atlantic, main conclusions on availability of bluefin
in Eastern Atalntic are given, using results of International Commission for Conservation of Atlantic Tuna.
Tipo: Text
Palavras-chave: Thons rouges; Méditerranée; Atlantique Est; Pêcheries; Disponibilité; Bluefin tuna; Mediterranea; East Atlantic;
Fisheries; Availability.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-6027.pdf
Estudio de las capturabilidades relativas de las diferentes clases de edad de atun blanco o bonito del
Provedor de dados: 5
Autores: Bard, François-xavier; Gonzalez-garces, A.
La pesca del atun blanco (Thunnus alalunga) en superficie en el norte del Atlantico se realiza mediante dos tipos distintos de
barcos: los de currican y los de cebo vivo. Los de cebo vivo aparecieron alrededor del a o 1952, mientras que los caceros (barcos
que pescan con currican) explotan el atun blanco desde hace cerca de un siglo. Hemos podido reconstruir los desembarcos de cada
clase de navios desde 1957.Estos datos son presentados en la figura 1. Puede observarse que la importancia de las dos pesquerias
es bastante proxima a la relacion 2 a 1.Las zonas de pesca fueron muy constantes desde 1957 hasta 1970. [NOT CONTROLLED
OCR]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-5178.pdf
Bilan des observations phytoplanctoniques réalisées sur le littoral de Loire-Atlantique et Vendée
(1983-1992)
Provedor de dados: 5
Autores: Bardin, Benoît; Baud, Dominique; Dumont, Francoise; Menanteau, Chantal; Pezeron, Annie.
L'apparition épisodique d'épidémies de gastro-entérites, souvent estivales, après consommation de coquillages, a conduit au début
des années 80 à mener des études pour comprendre l'origine de ces phénomènes. Secteur sensible, la baie de Vilaine fut le lieu
d'importants programmes de recherches et de suivi de la qualité du milieu qui mirent en évidence l'origine phytoplanctonique des
troubles constatés, et le rôle particulier tenu par un dinoflagellé du genre Dinophysis. Le présent rapport rappelle l'acquis de ces
études sur ce secteur, ainsi que la mise en place sur le littoral de Loire-Atlantique et de Vendée, en 1984, du réseau national
REPHY (réseau de surveillance phytoplanctonique) en commentant, par année et par secteur, les principaux résultats...
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00104/21554/19133.pdf
What is the heritable component of spinal deformities in the European sea bass (Dicentrarchus
labrax)?
Provedor de dados: 5
Autores: Bardon, Agnes; Vandeputte, Marc; Dupont-nivet, Mathilde; Chavanne, Herve; Haffray, Pierrick; Vergnet, Alain;
Chatain, Beatrice.
Malformations in farmed fish are a prime research topic as it has a major impact on fish welfare and on the economical value of
the product. In this study, the genetic component of spine deformities was estimated in European sea bass, a major species of
Mediterranean aquaculture, with the use of a posteriori reconstruction of pedigree with microsatellites. Our population exhibited a
very high malformation rate (81%),probably due to intense swimming of fish during pre-growing The heritability of global spine
deformities was evaluated to be 0.21 +/- 0.04 on the underlying scale (033 +/- 0.06 for lordosis, 0.13 +/- 0.04 for scoliosis).
Deformities scored by an internal or external examination turned out to be genetically the same trait (genetic...
Tipo: Text
Palavras-chave: Genetic correlations; Heritability; Growth; Deformities; Dicentrarchus labrax; European sea bass.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6768.pdf
Study of the ontogeny of the orbicular batfish (Platax orbicularis)
Provedor de dados: 5
Autores: Bardon-albaret, Agnes; Gasset, Eric; Teissier, Alexandre; Teiri, W; Maamaatuaiahutapu, M; David, R; Tayale,
Alexandre; Belliard, Corinne; Levy, Peva; Basset, Caline; Sicard, Julien; Magre, Kevin; Herne, Antoine; Reverter, Myriam; Sasal,
Pierre; Coves, Denis; Saulnier, Denis.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39246/37819.pdf
Influence d'un traitement au chlore sur la croissance d'une diatomée : Phaeodactylum Tricornutum
(BOHLIN)
Provedor de dados: 5
Autores: Bardouil, Michele; Bocquene, Gilles; Le Dean, Loic.
Ces travaux complètent l'étude de l'influence de chocs thermiques sur la croissance de la diatomée Phaeodactylum tricornutum
(BOHLIN). Ils concernent les effets d'un traitement au chlore sur le développement de cette diatomée.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00046/15749/13151.pdf
Feeding responses of Crassostrea gigas (Thunberg) to inclusion of different proportions of toxic
dinoflagellates in their diet
Provedor de dados: 5
Autores: Bardouil, Michele; Bohec, Madeleine; Bougrier, Serge; Lassus, Patrick; Truquet, Philippe.
An experimental flow-through system allowing determination of the feeding behaviour of individual molluscs was used to study
oysters exposed to mixed diets composed of varying proportions of the diatom Thalassiosira weissflogii and two strains (toxic and
nontoxic) of the dinoflagellate Alexandrium larnarense. Our results show that, when compared to a T. weissflogii unialgal diet,
even a diatomltoxic dinoflagellate ratio as low in biomass as 90/10 reduced clearance rates and biodeposit production by oysters.
Consumption was slightly but significantly decreased for a 50/50 diatomltoxic dinoflagellate mixture. For the toxic dinoflagellate
unialgal diet, ingestion, absorption and consumption were completely inhibited. Thus, the inclusion of low amounts of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Thalassiosira weissflogii; Alexandrium tamarense; Ecophysiologie; Toxine paralysante des
coquillages; Crassostrea gigas; Thalassiosira weissflogii; Alexandrium tamarense; Ecophysiology; Paralytic shellfish poison.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00017/12788/9729.pdf
Evolution annuelle du phytoplancton dans le Pertuis Breton - Charente-Maritime
Provedor de dados: 5
Autores: Barille, Anne-laure.
Afin d'améliorer les gestion des bassins conchylicoles, de nombreux auteurs ont élaboré des modèles mathématiques simulant les
activités physiques et biologiques des bassins étudiés (Bacher et al.. 1990, bassin de Marennes-Oléron ; Bioteau, 1993, étang de
Thau ; Chapelle, 1993, Baie de la Vilaine ; Radford. 1993, mer du Nord ; Smaal et Scholten, 1989, bassins mytilicoles hollandais;
Santhanam et al., 1990, sud-est de l'Inde ; Keizer et al., 1987, bassin de Cumberland). Un des problèmes majeurs qui se pose au
modélisateur est l'estimation de la capacité trophique d'un bassin. Quel facteur est le plus représentatif de la nourriture disponible
pour les mollusques filtreurs ? Widdows et al. (1979) caractérisent le potentiel nutritif disponible pour les...
Tipo: Text
Palavras-chave: Phytoplancton; Variations annuelles; Facteurs climatiques; Répartition; Marennes Oléron; Pertuis Breton.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00078/18905/16491.pdf
Hydrobiologie d'un écosystème conchylicole : le Pertuis Breton (17)
Provedor de dados: 5
Autores: Barille, Anne-laure.
La Baie de l'Aiguillon fut le berceau de la conchyliculture: les premiers parcs à moules furent établis au XIII""'· siècle par un
irlandais P. Walton, naufragé en 1235 prés du port d'Esnande. C'est à lui que l'on attribut l'invention des bouchots. L'élevage
traditionnel sur bouchot, initialement implanté à l'intérieur de la Baie de l'Aiguillon, a entraîné un tel envasement, que la culture
des moules y est devenue impraticable. Les mytiliculteurs ont du installer leur bouchot à la sortie de la baie. Cette culture
représente 20 000 tonnes; ce qui fait . du Pertuis Breton le plus important secteur de production mytilicole de la façade Atlantique.
Cet élevage traditionnel occupe actuellement tous les sites exploitables, il faut donc conquérir de nouveaux...
Tipo: Text
Palavras-chave: Hydrobiologie; Capacité trophique; Estimation biomasse; Mytiliculture; Mytilus edulis; Pertuis Breton.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00165/27639/25787.pdf
Mise en place de la DCE dans les masses d'eau côtières des Pays de la Loire - Prospection de la flore et
de la faune benthiques et proposition d'un réseau de surveillance
Provedor de dados: 5
Autores: Barille, Anne-laure; Harin, Nicolas; Sauriau, Pierre-guy; Truhaud, Nicolas; Oger-jeanneret, Helene.
The Water Framework Directive (WFD) sets an objective of "good condition" for aquatic environments by 2015. Its
implementation along the shoreline is the object of a well-established collaboration between the Ministry of Ecology and
Sustainable Development (which became the Ministry of Sustainable Ecology, Development and Urban Planning), the Water
Agencies and IFREMER. While the MEDD/IFREMER national agreement brings elements of methodology and general
knowledge for managing French shoreline policy, it covers only very partially the needs of shoreline politics in Brittany and the
Pays de la Loire region, and requires supplementary items linked to the specifics of the Loire-Brittany shoreline: very widespread
and numerous water masses due to the presence...
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-2591.pdf
Observations des éléments structuraux intervenant dans les mécanismes de nutrition préingestifs chez
l'huître japonaise Crassostrea gigas
Provedor de dados: 5
Autores: Barille, Laurent.
Recent feeding-physiology experiments have shown that the Japanese oyster Crassostrea gigas was able to operate a selection
among inorganic and organic particles before ingestion. However, the underlying mechanisms are not well understood.
Anatomical observations of different structures which may play a raie in the selection processes are brought together and
submitted to the actual knowledge on bivalve feeding. The mantle lobes, the ciliary structure of the ordinary filaments, the
marginal ventral groove and the labial palps are described.
Tipo: Text
Palavras-chave: Nutrition; Crassostrea gigas; Huîtres; Ecophysiologie.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3077.pdf
Alimentation expérimentale de l'huître Crassostrea gigas à l'aide de navicules bleus Haslea ostrearia
(Simonsen) de différentes tailles
Provedor de dados: 5
Autores: Barille, Laurent; Bougrier, Serge; Geairon, Philippe; Robert, Jean-michel.
The influence on the feeding physiology (clearance, filtration, ingestion, absorption) of the Japanese oyster Crassostrea gigas of
low concentrations of suspended particulate matter (SPM ranging from 2 to 20 mg.l-l) and high food quality (mean organic
fraction =54 %) was studied in the laboratory. Experimental diets were made up with three strains of the "blue diatom" Haslea
ostrearia, which is responsible of the greening of oyster-ponds. The strains were characterized by different sizes (48, 65 and 98
µm respectively) but possessed the same density and biochemical composition. Clearance rate was found constant at 2.2 1.h(-l).g-l
dry weight and therefore was not influenced by increasing seston load. Pseudofaeces production was observed for SPM...
Tipo: Text
Palavras-chave: Taille des particules; Qualité alimentaire; Haslea ostrearia; Crassostrea gigas; Alimentation; Particle size; Food
quality; Haslea ostrearia; Crassostrea gigas; Feeding.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3070.pdf
Ecophysiological deterministic model for Crassostrea gigas in an estuarine environment
Provedor de dados: 5
Autores: Barille, Laurent; Heral, Maurice; Barilleboyer, Al.
An ecophysiological deterministic model of growth, reproduction and interactions between the bivalve and its estuarine environ
ment was established for the Japanese oyster Crassostrea gigas. The environmental variables used in the model are: total
particulate matter, particulate organic matter, particulate inorganic matter, chlorophyll, phaeopigments, proteins, lipids and
carbohydrates. Rates of clearance, filtration, ingestion, absorption and respiration along with efficiencies of retention, selection
and absorption are modelled with endogenous (dry weight of the animal, energy allocation between growth and reproduction) and
exogenous variables (temperature, food quality and quantity). The model simulate the temporal evolution of two compartments:
somatic...
Tipo: Text
Palavras-chave: Crassoslrea gigas; Croissance; Écophysiologie; Modélisation; Turbidité; Crassostrea gigas; Ecophysiology;
Growth; Modelling; Turbidity.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00038/14892/12219.pdf
Growth of the Pacific oyster (Crassostrea gigas) in a high-turbidity environment: Comparison of
model simulations based on scope for growth and dynamic energy budgets
Provedor de dados: 5
Autores: Barille, Laurent; Lerouxel, Astrid; Dutertre, Mickael; Haure, Joel; Barille, Anne-laure; Pouvreau, Stephane;
Alunno-bruscia, Marianne.
We compared growth simulations by dynamic energy budget (DEB) and scope for growth (SFG) models of the Pacific oyster
Crassostrea gigas, cultivated in Bourgneuf Bay on the French Atlantic coast. This bay is located at a latitude in the middle of the
European range of the species, and is characterized by high concentrations of suspended particulate matter (SPM) and a marked
gradient between high-turbidity sites in the north (daily SPM > 500 mg L-1) and intermediate-turbidity sites in the south. The
models use two forcing variables: seawater temperature and food density. We tested two indices of food availability: chlorophyll a
and microalgal concentrations. In the SFG model, food intake is simulated by a type-II Holling functional response, as in the
DEB...
Tipo: Text
Palavras-chave: Oyster; Dynamic Energy Budget model; Scope for growth model; Turbidity.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15433/12783.pdf
Modeling Japanese oyster physiological processes under natural tidal variation in suspended
particulate matter
Provedor de dados: 5
Autores: Barille, Laurent; Prou, Jean.
Feeding and growth of the Japanese oyster Crassostrea gigas is simulated by a deterministic model. However, physiological
processes, estimated by statistical relationships, have not been tested under extreme environmental conditions such as high level
of suspended particulate matter. Ecophysiological experiments were therefore conducted in situ in the Bay of Marennes-Oléron
during a spring and neap tide cycle in May 1991, to get a better representation of 2 important components of the energy budget of
the Japanese oyster: clearance rate and selection efficiency. The relationships previously established by Raillard et al. (1993) are
re-evaluated by integrating the action of high seston load, typical of tidal effect within estuaries, on the physiological...
Tipo: Text
Palavras-chave: Tidal cycles; Oysters culture; Growth; Feeding; Energy budget; Ecophysiology.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-3827.PDF
Feeding of Crassostrea gigas at high seston load : modeling requirements
Provedor de dados: 5
Autores: Barille, Laurent; Prou, Jean.
Ecophysiological experiments conducted in situ in the Bay of Marennes-Oléron during a spring and neap tide cycle in May 1991 ,
were designed to get a better representation of 2 important components of the energy budget of the Japanese oyster Crassostrea
gigas : clearance rate and selection efficiency. The relationships previously established by Raillard et al. ( 1993) are re-evaluated
by integrating the effects of high seston loads, typical of tidal effect within estuaries, on the physiological processes. For the
clearance rate, the re-evaluated parameterization includes: - a negative effect of turbidity. - a clogging threshold set to 192 mg/l.
Selection efficiency parameterizations are modified by incorporating : - a constant inorganic ingestion for...
Tipo: Text
Palavras-chave: Matematical model; Oyster; Crassostrea gigas; Clearance rate; Seclection efficency; Marennes Oleron; Charente
Maritime.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00102/21299/18913.pdf
Retention efficiency in oyster Crassostrea gigas exposed to variable food quantity and quality
Provedor de dados: 5
Autores: Barille, Laurent; Prou, Jean; Heral, Maurice; Bougrier, Serge.
Relative retention efficiency (Er%) of Crassostrea gigas was estimated in the laboratory with 7 diets consisting of algae and silt.
Total particulates varied from 1.34 mg/l in natural sea water to 27.65 mg/l in natural sea water enriched with silt. It was also
calculated from field experiment to get high concentration of seston up to 66 mg/l. It appeared that Crassostrea gigas did not
adjust its retention according to the food quality and the gill porosity was controlled by the concentration of particulate matter. In
low seston load (1.34 mg/l) the oyster showed no change in retention for particles larger than 3-4 µm (Equivalent Spherical
Diameter, ESD) but at the highest concentration (66 mg/l) it could only retain with a maximum efficiency particles...
Tipo: Text
Palavras-chave: Crassostrea gigas; Dietary quality; Particle concentration; Physiological model; Retention efficiency.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00100/21096/18721.pdf
L'ostréiculture en baie de Bourgneuf. Relation entre la croissance des huîtres Crassostrea gigas et le
milieu naturel : synthèse de 1986 a 1995
Provedor de dados: 5
Autores: Barille-boyer, Anne-laure; Haure, Joel; Baud, Jean-pierre.
The oyster growth has been studied for a 10 year period, from 1986 to 1995, in four locations of the bay of Bourgneuf (French
Atlantic Coast). The relations between oysters growth and the main molluscs stocks (cultivated oysters and wild mussels) or
environmental factors (hydrobiology, currents, climatology) are analysed to understand the functioning of this shellfish
ecosystem. As the water renewal time is about two months, primary production is essentially autochtonal. Phytoplankton
development is controlled by the nutrients brought by the river Loire. An important part of the microalgac is composed by the
microphytobenthos resuspended by west wind. High seston concentrations, measured on the North of the bay (150 mg/1 as an
average), have a negative...
Tipo: Text
Palavras-chave: Ecosystem; Shellfish culture; Global growth model; Bay of Bourgneuf; Crassostrea gigas; Ecosystème
conchylicole; Modèle global de croissance; Baie de Bourgneuf; Crassostrea gigas.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/rapport-1633.pdf
Les chaines alimentaires naturelles et l'aquaculture
Provedor de dados: 5
Autores: Barnabe, G.
Aquaculture sets up manipulation of natural food chains. This paper describes some utilizations of photosynthetic bacteria,
phytoplankton and zooplankton taken out sewage ponds, wetlands or neritic waters.
Tipo: Text
Palavras-chave: Bacteria; Photosynthesis; Aquaculture; Ecosystems; Zooplankton; Phytoplankton; Food chains.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1254.pdf
Les potentialités géographiques et techniques du littoral languedocien pour l'aquaculture des thons
Provedor de dados: 5
Autores: Barnabe, G.
On Languedoc shore, several hatcheries may be used at research and development level, to solve tuna aquaculture problems.
Therefore, incubation and hatching of air-transported eggs collected on spawning ground with different technics are possible.
Natural zooplancton now used to feed bass larvae in Sète is to be used for tuna rearing.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/publication-6035.pdf
Compte-rendu sommaire de la campagne 1972-1973 de reproduction controlée du loup à Sète
Provedor de dados: 5
Autores: Barnabe, G.
Before I get to the heart of the matter, I would like to precise the main objectives of this cruise as well as the conditions in which it
took place. A year earlier, we had managed to obtain for the first time 12 000 Atlantic wolffish fries from farmed spawners.
Therefore we had to demonstrate that these experiments were repeatable and that they could be adapted to a mass production
leading to the rearing of 30 000 to 50 000 fries. These are the terms of the collaboration contract between the C.N.E.X.O. and the
Sete Station.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-5995.pdf
Experiences de reproduction artificielle de Loup Dicentrarchus labrax (Linne 1758).
Provedor de dados: 5
Autores: Barnabe, G.; Tournamille, J.-c.
Mature eggs were expressed from captured female and fertilised artificially with slightly bloody sperm, in dry conditions or in a
humid atmosphere, both at 13 degree C. The best incubation conditions proved to be 13 degree C, with streptomycin and
penicillin. Another sample was kept at 18 degree C. Hatching occurred after 4 or 5 days, larvae showing positive phototropism.
The system of renewal of water and artificial food is described. The embryonic reserve drop of lipid disappeared between day 14
and 16. Observations on larvae were like previous ones, but live larvae had larger mouths than had fixed specimens, and it was
found that temperatures of 13 degree C or 18 degree C were suitable beyond the egg stage. A sudden change in temperature
caused by a...
Tipo: Text
Palavras-chave: Temperature; Sperm; Eggs; Dicentrarchus labrax; Artificial reproduction.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2063.pdf
Etude morphologique du loup Dicentrarchus labrax L. de la region de Sete
Provedor de dados: 5
Autores: Barnabe, Gilbert.
Sampling of a population of D. Labrax was one with spear diving catches. Morphometric and meristic data were used to calculate
a biometric index. This index showed that all the bass of the Sete area belong to Dicentrarchus labrax, even if they were black
spotted on the upper part of the body. Morphology was slightly different according to sex, but sex determination was not always
possible using morphometric data. This inshore population shows some morphological characteristics (branchiospine and lateral
line scale number) different from the data collected on the same sp along the Maroc Atlantic coast by Gravier, 1961.
Tipo: Text
Palavras-chave: Mediterranean sea; Biometry; Anatomy; Morphology; Dicentrarchus labrax.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-2153.pdf
Etude de la dynamique du parasite Marteilia refringens chez son hôte Ostrea edulis
Provedor de dados: 5
Autores: Barnaud, Antoine.
Après une synthèse des principaux agents pathogènes en conchyliculture, l'auteur présente le protozoaire Marteilia refringens,
parasite majeur de l'huître plate Ostrea edulis en Europe, dont le cycle reste inconnu. Suit une étude expérimentale de la
dynamique du parasite dans l'huître, intégrée à un modèle d'étude de la marteiliose en claire ostrécole, montrant l'existence d'une
fenêtre temporelle d'infection et aboutissant à une nouvelle hypothèse de cycle parasitaire. Ces résultats sont enfin mis en relation
avec la détection récente de Marteilia refringens dans le copépode Acartia grani, hôte intermédiaire potentiel.
Tipo: Text
Palavras-chave: Marteilia refringens; Ostrea edulis; Huître; Conchyliculture; Pathologie; Paramyxea.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00109/22038/19683.pdf
Accumulation and fragmentation of plastic debris in global environments
Provedor de dados: 5
Autores: Barnes, David K. A.; Galgani, Francois; Thompson, Richard C.; Barlaz, Morton.
One of the most ubiquitous and long-lasting recent changes to the surface of our planet is the accumulation and fragmentation of
plastics. Within just a few decades since mass production of plastic products commenced in the 1950s, plastic debris has
accumulated in terrestrial environments, in the open ocean, on shorelines of even the most remote islands and in the deep sea.
Annual clean-up operations, costing millions of pounds sterling, are now organized in many countries and on every continent.
Here we document global plastics production and the accumulation of plastic waste. While plastics typically constitute
approximately 10 per cent of discarded waste, they represent a much greater proportion of the debris accumulating on shorelines.
Mega- and...
Tipo: Text
Palavras-chave: Microplastic; Landfill; Plastic production; Marine debris; Persistent organic pollutants.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6952.pdf
A multiple corer for taking virtually undisturbed samples from shelf, bathyal and abyssal sediments
Provedor de dados: 5
Autores: Barnett, Pro; Watson, J; Connelly, D.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00113/22438/20125.pdf
DRAKKAR: developing high resolution ocean components for European Earth system models
Provedor de dados: 5
Autores: Barnier, B.; Blaker, A.t.; Biatosch, A.; Böning, C.w.; Coward, A.; Deshayes, Julie; Hirshi, J.; Le Sommer, J.; Madec,
G.; Maze, Guillaume; Molines, J.m.; New, A.; Penduff, T.; Scheinert, M.; Talandier, Claude; Treguier, Anne-marie.
DRAKKAR is a consortium of European ocean modelling teams. It was “created to take up the challenges of developing realistic
global eddy-resolving/ permitting ocean/sea-ice models, and of building an ensemble of high resolution model hindcasts
representing the ocean circulation from the 1960s to present” (quoting the DRAKKAR Group, 2007, in a CLIVAR Exchanges
paper where the DRAKKAR strategy was presented for the first time). Now in the second decade of its existence, the DRAKKAR
Group is active and thriving, and it is now timely to present recent developments and future plans in this special issue of CLIVAR
Exchanges.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00326/43698/43123.pdf
Impact of partial steps and momentum advection schemes in a global ocean circulation model at
eddy-permitting resolution
Provedor de dados: 5
Autores: Barnier, B; Madec, G; Penduff, T; Molines, J; Treguier, Anne-marie; Le Sommer, J; Beckmann, A; Biastoch, A;
Boning, C; Dengg, J; Derval, C; Durand, E; Gulev, S; Remy, E; Talandier, Claude; Theetten, Sebastien; Maltrud, M; Mcclean, J;
De Cuevas, B.
Series of sensitivity tests were performed with a z-coordinate, global eddy-permitting (1/4 degrees) ocean/sea-ice model (the
ORCA-R025 model configuration developed for the DRAKKAR project) to carefully evaluate the impact of recent state-of-the-art
numerical schemes on model solutions. The combination of an energy-enstrophy conserving (EEN) scheme for momentum
advection with a partial step (PS) representation of the bottom topography yields significant improvements in the mean
circulation. Well known biases in the representation of western boundary currents, such as in the Atlantic the detachment of the
Gulf Stream, the path of the North Atlantic Current, the location of the Confluence, and the strength of the Zapiola Eddy in the
south Atlantic, are...
Tipo: Text
Palavras-chave: Eddy/topography interactions; Partial step topography; Momentum advection scheme; Eddy permitting ocean
model; Global ocean.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-3514.pdf
Séminaire d'hydrodynamique côtière, Brest 15-17 septembre 2003. Compilation des interventions
Provedor de dados: 5
Autores: Barnier, Bernard; Lazure, Pascal.
L'océanographie physique côtière a pour objet d'observer, de comprendre et de prévoir le fonctionnement hydrodynamique du
milieu côtier, avec comme enjeux, dans le cadre d'applications pluridisciplinaires, la pollution côtière, la gestion et la préservation
des écosystèmes et des ressources halieutiques, la contribution des zones côtières aux puits de carbone, l'hydrodynamique
sédimentaire et les échanges eau - sédiments. Contrairement à l'océanographie du large, l'océanographie côtière n'a pas bénéficié
de grands programmes internationaux (tel que le World Ocean Circulation Experiment -WOCE) pour structurer ses activités de
recherche dans le domaine de l'observation et de la modélisation au niveau national ou international. De plus, les problèmes
traités...
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00020/13162/10212.pdf
Technologies marines : à la recherche d'une identité
Provedor de dados: 5
Autores: Barnouin, Bruno.
Le développement de systèmes destinés à être opérés en milieu marin, que ce soit pour la mesure, le prélèvement, l'extraction, le
transport, l'enfouissement présente des caractéristiques communes : prise en compte, incontournable, de contraintes
opérationnelles "fortes" (manutention, mise à l'eau, et récupération, interaction avec l'environnement), intégration de composants
multiples, relevant des disciplines variées, et donc maîtrise de ces dernières, de leurs interfaces, voire de leur interaction,
obligation d'une sélection rigoureuse des matériaux et constituants du système.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/publication-7474.pdf
Dommage composites pendant l'expertise de bateaux en matériaux composites
Provedor de dados: 5
Autores: Barnouin, Bruno; Renaud, P.
The main conclusions drawn from examinations made by an expert over the last twelve years on boats in the Bay of Arcachon,
including both motor and sailing boats, are presented. The different types of damage most frequently observed in different areas of
the boats are described, with distinctions made between superstructures, areas below the water-line and other components. The
damage is defined, common repair methods are described and simple design modifications to avoid the problems are discussed. In
conclusion, it is apparent that the problems related specifically to aging of the material are rare or very rare. With improved
fabrication methods and mastery of the design process in-service experience fully justifies the position of composite materials as...
Tipo: Text
Palavras-chave: Motor boats; Inspection; Accidents; Yachts; Damage; Ship technology; Composite materials; Plaisance;
Réparation; Accident; Dommage; Avarie.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1066.pdf
Etude du plancton dans le bassin de Marennes
Provedor de dados: 5
Autores: Baron, G.
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1938
URL: http://archimer.ifremer.fr/doc/1938/publication-6889.pdf
Etude de l'extrusion
Provedor de dados: 5
Autores: Baron, Regis.
Ce rapport fait suite au stage effectué au sein du laboratoire «Génie Alimentaire», de l'Institut Français de Recherche pour
l'Exploitation de la MER. Ce stage fait partie du cycle de préparation à la Maîtrise de Sciences et Techniques en Systèmes
Automatiques Industriels. Il s'est déroulé du 25 Février au 17 Mai 1991.Ce rapport porte sur l'étude du procédé d'extrusion.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00137/24870/22958.pdf
Continuous fluorescence recording as a way to improve Pacific oyster (Crassostrea gigas) models of
paralytic shellfish toxin accumulation
Provedor de dados: 5
Autores: Baron, Regis; Couedel, Marielle; Joret, Camille; Garen, Pierre; Truquet, Philippe; Masselin, Pierre; Bardouil, Michele;
Lassus, Patrick.
A simple system was used to simulate the effect of alternating toxic (paralytic shellfish poisoning toxins) and non-toxic microalgal
diets on oyster feeding behaviors and rates of toxin accumulation. These experimental conditions were meant to reflect, to some
extent, the incoming and outgoing fluxes of toxic algae observed at the mouth of the Penze estuary (Northern Brittany, France).
Physiological and toxicological parameters were estimated based oil fluorescence measurements recorded continuously at the
outlet of each experimental tank, which contained a single oyster. Q(tox), this variable describes toxin uptake in oysters, it was
used (instead of the toxin ingestion rate): i) in simple graphical analyses, ii) as well as in one- and two-compartment...
Tipo: Text
Palavras-chave: Skeletonema costatum; Alexandrium minutum; Fluorescence; Modeling; Kinetics; Toxin uptake; Shellfish
toxin; PSP.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1400.pdf
Numerical and experimental study of a continuous electrostatic smoking process
Provedor de dados: 5
Autores: Baron, Regis; Havet, Michel; Solliec, Camille; Pierrat, Daniel; Touchard, Gerard.
The smoking process is a batch one with long duration processing (some hours). Deposition of smoke particles can be enhanced
by electrostatic precipitation. However, a better knowledge of the fundamental physics is needed to optimize the process. We
carried out experimental and numerical studies to obtain essential information on the smoke flow. First, experiments physically
characterized the wood smoke. These measures lead us to study the turbulent two-phase flow using an algebraic slip model. The
main coupling with electrical forces is taken into account through the slip velocity. Various assumptions were tested concerning
the coupled phenomena in order to build an algorithm that is able to simulate these phenomena. Numerical resolutions are
compared...
Tipo: Text
Palavras-chave: Smoked salmon; Smoke particles; Electrostatic precipitators.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4695.pdf
Optimisation d'un nouveau procédé de fumage du poisson par précipitation électrostatique des
particules de fumée
Provedor de dados: 5
Autores: Baron, Regis; Sanquer, Odile; Département Sciences et Techniques Alimentaires Marines de l'IFREMER de Nantes;
UMR CNRS GEPEA; CETIM; UMR LEA Univ. Poitiers.
Cette étude porte sur l'optimisation d'un nouveau procédé de fumage en continu par précipitation électrostatique des particules de
fumée. Le principe est de faire circuler Ia fumée, produite par pyrolyse de bois, entre deux électrodes. Sous des conditions
électriques spécifiques, un flux ionique entre les électrodes est généré.
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00065/17626/15155.pdf
Kinetic study of solid phase demineralization by weak acids in one-step enzymatic bio-refinery of
shrimp cuticles
Provedor de dados: 5
Autores: Baron, Regis; Socol, Marius; Arhaliass, A.; Bruzac, Sandrine; Le Roux, Karine; Del Pino, J. Rodriguez; Berge,
Jean-pascal; Kaas, Raymond.
We describe a one-step bio-refinery process for shrimp composites by-products. Its originality lies in a simple rapid (6 h)
biotechnological cuticle fragmentation process that recovers all major compounds (chitins, peptides and minerals in particular
calcium). The process consists of a controlled exogenous enzymatic proteolysis in a food-grade acidic medium allowing chitin
purification (solid phase), and recovery of peptides and minerals (liquid phase). At a pH of between 3.5 and 4, protease activity is
effective, and peptides are preserved. Solid phase demineralization kinetics were followed for phosphoric, hydrochloric, acetic,
formic and citric acids with pKa ranging from 2.1 to 4.76. Formic acid met the initial aim of (i) 99 % of demineralization yield...
Tipo: Text
Palavras-chave: Bio-refinery; Acidic enzymatic proteolysis; Shrimp cuticles; Demineralization kinetics and modeling.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39244/37809.pdf
Dynamical modelling of a reactive extrusion process: Focus on residence time distribution in a fully
intermeshing co-rotating twin-screw extruder and application to an alginate extraction process
Provedor de dados: 5
Autores: Baron, Regis; Vauchel, Peggy; Kaas, Raymond; Arhaliass, Abdellah; Legrand, Jack.
The context of this study is the modelling of reactive extrusion process based on an alginate extraction protocol. Residence Time
Distribution (RTD) is one important part to predict the kinetics of reactive compounds. A simple model is proposed to predict
RTD in fully intermeshing co-rotating twin-screw extruders without reaction. This model, which can be easily extended to
reactive case in a future work, is based on the extension of an axial dispersion model, including control parameters (screw speed
and flow rate) and geometrical parameters (screw profile and die design). Simulations were performed for various operating and
geometrical conditions so as to illustrate possibilities offered by the proposed model. Validation was conducted for two different...
Tipo: Text
Palavras-chave: Alginate; Extraction; Extrusion; Mathematical modelling; Residence time distribution; Simulation; Laminaria
digitata.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00005/11592/8985.pdf
Interannual Changes in Biomass Affect the Spatial Aggregations of Anchovy and Sardine as
Evidenced by Geostatistical and Spatial Indicators
Provedor de dados: 5
Autores: Barra, Marco; Petitgas, Pierre; Bonanno, Angelo; Somarakis, Stylianos; Woillez, Mathieu; Machias, Athanasios;
Mazzola, Salvatore; Basilone, Gualtiero; Giannoulaki, Marianna.
Geostatistical techniques were applied and a series of spatial indicators were calculated (occupation, aggregation, location,
dispersion, spatial autocorrelation and overlap) to characterize the spatial distributions of European anchovy and sardine during
summer. Two ecosystems were compared for this purpose, both located in the Mediterranean Sea: the Strait of Sicily (upwelling
area) and the North Aegean Sea (continental shelf area, influenced by freshwater). Although the biomass of anchovy and sardine
presented high interannual variability in both areas, the location of the centres of gravity and the main spatial patches of their
populations were very similar between years. The size of the patches representing the dominant part of the abundance (80%)
was...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00276/38758/37299.pdf
Molecular characterization of penaeidins from two Atlantic Brazilian shrimp species,
Farfantepenaeus paulensis and Litopenaeus schmitti
Provedor de dados: 5
Autores: Barracco, Margherita; De Lorgeril, Julien; Gueguen, Yannick; Bachere, Evelyne.
We report here the molecular cloning of new members of the penaeidin family from two Atlantic penaeids from Brazil,
Litopenaeus schmitti and Farfantepenaeus paulensis. The presence of penaeidins in the granular hemocytes of both shrimps was
first evidenced by immunofluorescence, using polyclonal antibodies raised against L. vannamei penaeidin Litvan PEN3-1. cDNAs
from the hemocytes of both Brazilian species were obtained by reverse transcription and the sequences encoding penaeidins were
amplified by PCR, using primers based on penaeidin consensus sequences. Five penaeidin clones were obtained. According to the
international penaeidin classification (PenBase, http://www.penbase.immunaqua.com), the deduced amino acid sequences of two
clones from L. schmitti...
Tipo: Text
Palavras-chave: Immuno detection; Molecular cloning; Litopenaeus schmitti; Farfantepenaeus paulensis; Brazilian penaeid
shrimps; Hemocytes; Antimicrobial peptides; Penaeidins.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3582.pdf
Étude chez l'huître creuse, Crassostrea gigas, des anomalies génomiques provoquées par l'exposition à
des concentrations environnementales de diuron : caractérisation des atteintes, étude de leur
héritabilité et conséquences pour la survie et la croissance des naissains
Provedor de dados: 5
Autores: Barranger, Audrey.
The aims of this PhD were to determine (1) the effects of the herbicide diuron on the genome of the oyster, Crassostrea gigas, (2)
the possible transmission to the offspring of damaged DNA and (3) its consequences on oyster physiology. The genotoxicity of
diuron and the vertical transmission of DNA damage were highlighted after parental exposure to environmental concentrations of
diuron during the gametogenesis. Primary DNA lesions were detected in both somatic cells and germ cells of exposed genitors.
Detection of the oxidized base 8-oxodGuo in gonads shows that exposure to diuron led to an oxidative stress which likely explains
the observed DNA strand breaks in spermatozoa. The transmission of these DNA damage was confirmed by fluorescent in situ...
Tipo: Text
Palavras-chave: Crassostrea gigas; Herbicide; Diuron; Génotoxicité; Effets trans-générationnels; Cytogénétique; Test des
comètes; Cytométrie en flux; Crassostrea gigas; Herbicide; Diuron; Genotoxicity; Trans-generational effects; Cytogenetic; Comet
assay; Flow cytometry.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00271/38237/36419.pdf
Study of genetic damage in the japanese oyster induced by an environmentally-relevant exposure to
diuron: evidence of vertical transmission of dna damage
Provedor de dados: 5
Autores: Barranger, Audrey; Akcha, Farida; Rouxel, Julien; Brizard, Raphael; Maurouard, Elise; Pallud, Marie; Menard,
Dominique; Tapie, N.; Budzinski, Helene; Burgeot, Thierry; Benabdelmouna, Abdellah.
Pesticides represent a major proportion of the chemical pollutants detected in French coastal waters and hence a significant
environmental risk with regards to marine organisms. Commercially-raised bivalves are particularly exposed to pollutants, among
them pesticides, as shellfish farming zones are subject to considerable pressure from agricultural activities on the mainland. The
aims of this study were to determine (1) the genotoxic effects of diuron exposure on oyster genitors and (2) the possible
transmission of damaged DNA to offspring and its repercussions on oyster fitness. To investigate these points, oysters were
exposed to concentrations of diuron close to those detected in the Marennes-Oleron Basin (two 7-day exposure pulses at 0.4 and
0.6 μg...
Tipo: Text
Palavras-chave: Herbicide; Diuron; Oyster; Genotoxicity; Comet assay; Cytogenetics.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00162/27311/25541.pdf
Parental exposure to environmental concentrations of diuron leads to aneuploidy in embryos of the
Pacific oyster, as evidenced by fluorescent in situ hybridization
Provedor de dados: 5
Autores: Barranger, Audrey; Benabdelmouna, Abdellah; Degremont, Lionel; Burgeot, Thierry; Akcha, Farida.
Changes in normal chromosome numbers (i.e. aneuploidy) due to abnormal chromosome segregation may arise either
spontaneously or as a result of chemical/radiation exposure, particularly during cell division. Coastal ecosystems are continuously
subjected to various contaminants originating from urban, industrial and agricultural activities. Genotoxicity is common to several
families of major environmental pollutants, including pesticides, which therefore represent a potential important environmental
hazard for marine organisms. A previous study demonstrated the vertical transmission of DNA damage by subjecting oyster
genitors to short-term exposure to the herbicide diuron at environmental concentrations during gametogenesis. In this paper,
Fluorescent in...
Tipo: Text
Palavras-chave: Aneuploidy; FISH; Diuron; Crassostrea gigas.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00238/34911/33216.pdf
Parental exposure to the herbicide diuron results in oxidative DNA damage to germinal cells of the
Pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Barranger, Audrey; Heude-berthelin, Clothilde; Rouxel, Julien; Adeline, Beatrice; Benabdelmouna, Abdellah; Burgeot,
Thierry; Akcha, Farida.
Chemical pollution by pesticides has been identified as a possible contributing factor to the massive mortality outbreaks observed
in Crassostrea gigas for several years. A previous study demonstrated the vertical transmission of DNA damage by subjecting
oyster genitors to the herbicide diuron at environmental concentrations during gametogenesis. This trans-generational effect
occurs through damage to genitor-exposed gametes, as measured by the comet-assay. The presence of DNA damage in gametes
could be linked to the formation of DNA damage in other germ cells. In order to explore this question, the levels and cell
distribution of the oxidized base lesion 8-oxodGuo were studied in the gonads of exposed genitors. High-performance liquid
chromatography...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oxidative stress; DNA damage; Germ cell; Pesticides.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00295/40655/39753.pdf
Benthic microphytic activity at 2 mediterranean shellfish cultivation sites with reference to benthic
fluxes
Provedor de dados: 5
Autores: Barranguet, C; Alliot, E; Plantecuny, Mr.
Microphytobenthos activity in coastal waters has been studied at two shellfish fanning sites: an oyster farm in Thau lagoon and a
mussel farm in Carteau bay (NW Mediterranean coast). In both cases, shellfish are cultivated on ropes hanging from rigid
structures (tables) in shallow waters (- 5 m). An ''under table'' station and an ''outside table'' (reference) station were chosen at each
site. Oxygen and ammonia fluxes at the water-sediment interface were measured in dark and transparent benthic chambers.
Chlorophyll a concentrations were two- to threefold higher in ''under table'' sediments than outside (260 mg Chl a m(-2) under the
oyster table, 436 mg Chl a m(-2) under the mussel table in winter). Net oxygen fluxes were negative at all stations, except...
Tipo: Text
Palavras-chave: MICROPHYTOBENTHOS; FLUXES; PRIMARY PRODUCTION; SHELLFISH CULTIVATION.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00098/20884/18498.pdf
Live benthic foraminiferal faunas from the French Mediterranean Coast: Towards a new biotic index
of environmental quality
Provedor de dados: 5
Autores: Barras, Christine; Jorissen, Frans J.; Labrune, Celine; Andral, Bruno; Boissery, Pierre.
In this study, living (Rose Bengal stained) foraminiferal faunas from 31 stations along the entire French Mediterranean Sea coast
except Corsica have been analysed. In the context of the Water Framework Directive, the aim was to develop a biotic index to
evaluate the benthic ecosystem quality. Therefore, different faunal parameters (diversity indices, wall structure proportion, and
indicative species groups) have been tested to determine their relevance as indicators of environmental conditions. The best results
are obtained with a biotic index based on the relative proportion of stress-tolerant taxa. For ecosystem quality evaluation, it is
essential to distinguish between natural and anthropogenic eutrophication phenomena. In order to do so, we applied a...
Tipo: Text
Palavras-chave: Coastal Mediterranean Sea; Foraminiferal faunas; Indicative species; Tolerant species; Biotic index; Water
Framework Directive.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00162/27312/28371.pdf
Historique, expériences en cours et perspectives du programme de sélection de l'huître plate Ostrea
edulis pour la résistance à la bonamiose
Provedor de dados: 5
Autores: Barre, Marc; Naciri, Yamama; Boudry, Pierre; Goyard, Emmanuel; Launey, Sophie; Cochennec, Nathalie; Heurtebise,
Serge; Ledu, Christophe; Phelipot, Pascal; Gerard, Andre.
The Aquaculture and Pathological Genetics (GAP) laboratory at La Tremblade has been monitoring three populations of European
flat oyster since 1985 or 1989 under selection for higher survival rates in the presence of the parasite Bonamia ostrea. One
selection cycle (1985 population) or two (1989 populations) were carried out by mass selection by placing the oysters for several
years in a highly infested zone, and then harvesting spawns from survivors.
Tipo: Text
Palavras-chave: Huîtres plates; Génétique; Selection génétique; Ostrea edulis.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3244.pdf
Étude d'une programmation d'un prégrossissement de palourde - Ruditapes philippinarum - selon
une méthode rustique
Provedor de dados: 5
Autores: Barret, Jean; Flassch, Jean-pierre.
L'élevage de la Palourde Ruditapes phillipinarum, entre dans sa phase de développement; données d'élevage, méthodes de
protection, lutte contre les prédateurs ... sont maintenant bien connues. Pour des raisons économiques, certains vénériculteurs
assurent eux-même le prégrossissement du naissain, c'est-à-dire le passage d'une taille correspondant à la sortie des écloseries :
T.2 - trié sur un tamis de 2 mm d'où l'appellation tamis de 2 : T.2 - à une taille compatible avec un semis. Ces éleveurs prennent
différentes options: certains préfèrent prégrossir le naissain en début d'année, d'autres en fin d'année, le semis étant effectué
lorsque le naissain a atteint une taille acceptable, selon l'appréciation de l'éleveur. Ces méthodes opportunistes, ne...
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00109/22001/19616.pdf
Response of North-Atlantic Ocean circulation to atmospheric weather regimes
Provedor de dados: 5
Autores: Barrier, Nicolas; Cassou, Christophe; Deshayes, Julie; Treguier, Anne-marie.
A new framework is proposed for investigating the atmospheric forcing of North-Atlantic ocean circulation. Instead of using
classical modes of variability, such as the North-Atlantic Oscillation (NAO) or the East-Atlantic Pattern, we here use the weather
regimes paradigm. Using this framework we avoid problems associated with the assumptions of orthogonality and symmetry that
are particular to modal analysis and known to be unsuitable for the NAO.
Using ocean-only historical and sensitivity
experiments, we investigate the impacts of the four winter weather regimes on horizontal and overturning circulations. Our results
suggest that the Atlantic Ridge (AR), NAO− and NAO+ regimes induce a fast (monthly to interannual timescales) adjustment of
the gyres via...
Tipo: Text
Palavras-chave: Circulation; Dynamics; Meridional overturning circulation; Atm; Ocean Structure; Phenomena; Gyres; North
Atlantic Oscillation; Wind; Physical Meteorology and Climatology; Climate classification; Regimes; Models and modeling;
Ocean models.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00161/27258/25467.pdf
Heat budget in the North Atlantic subpolar gyre: impacts of atmospheric weather regimes on the 1995
warming event
Provedor de dados: 5
Autores: Barrier, Nicolas; Deshayes, Julie; Treguier, Anne-marie; Cassou, Christophe.
In the mid 1990’s, the North Atlantic subpolar gyre has shown a dramatic warming event that has been thoroughly investigated
from observations and numerical simulations. Some studies suggest that it is due to an interannual, wind-driven weakening and
shrinking of the gyre that facilitated the penetration of warm Atlantic Water, the weakening of the gyre being attributed to changes
in the North Atlantic Oscillation (NAO) and the East Atlantic Pattern, which are the two dominant modes of atmospheric
variability in the North Atlantic. However, other studies suggest that the warming event is due to a decadal, buoyancy-driven
strengthening of the meridional overturning circulation and subsequent intensification of the poleward heat transport, in response
to the...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00218/32882/31753.pdf
Impact of the winter North-Atlantic weather regimes on subtropical sea-surface height variability
Provedor de dados: 5
Autores: Barrier, Nicolas; Treguier, Anne-marie; Cassou, Christophe; Deshayes, Julie.
Interannual variability of subtropical sea-surface-height (SSH) anomalies, estimated by satellite and tide-gauge data, is
investigated in relation to wintertime daily North-Atlantic weather regimes. Sea-level anomalies can be viewed as proxies for the
subtropical gyre intensity because of the intrinsic baroclinic structure of the circulation. Our results show that the strongest
correlation between SSH and weather regimes is found with the so-called Atlantic-Ridge (AR) while no significant values are
obtained for the other regimes, including those related to the North Atlantic Oscillation (NAO), known as the primary actor of the
Atlantic dynamics. Wintertime AR events are characterized by anticyclonic wind anomalies off Europe leading to a northward
shift...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27248/25480.pdf
Expériences de remorquage de fils et filets
Provedor de dados: 5
Autores: Barrillon, X.
L'étude de la résistance de remorquage des filets de pêche pose une série de problèmes pour lesquels le Service Scientifique des
Pêches a demandé au Bassin d'Essais une étude expérimentale portant, d'une part, sur la résistance de remorquage de brins isolés à
diverses vitesses, diverses inclinaisons sur la vitesse de route, diverses natures de fil ; d'autre part, sur la résistance d'éléments de
filets. Les études faites ont porté sur des fils isolés dans leur état naturel, sur des fils avec noeuds, enfin sur des éléments de
filets. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1933
URL: http://archimer.ifremer.fr/doc/1933/publication-5842.pdf
Rapprochement entre les essais de résistance de fils et les essais de résistance de filets
Provedor de dados: 5
Autores: Barrillon, X.
Le remorquage de fils et de filets a donné lieu à une note antérieure résumant les résultats obtenus avec des fils lisses et avec des
avenos. Ces essais ont été poursuivis avec des fils à noeuds. Nous rendons compte ici des résultats obtenus. Les méthodes
expérimentales et les modes de calcul sont les mêmes que précédemment. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1934
URL: http://archimer.ifremer.fr/doc/1934/publication-5803.pdf
Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and
Platax orbicularis
Provedor de dados: 5
Autores: Barros, Breno; Sakai, Yoichi; Pereira, Pedro H. C.; Gasset, Eric; Buchet, Vincent; Maamaatuaiahutapu, Moana; Ready,
Jonathan S.; Oliveira, Yrlan; Giarrizzo, Tommaso; Vallinoto, Marcelo.
Mimesis is a relatively widespread phenomenon among reef fish, but the ontogenetic processes relevant for mimetic associations
in fish are still poorly understood. In the present study, the allometric growth of two allopatric leaf-mimetic species of ephippid
fishes, Chaetodipterus faber from the Atlantic and Platax orbicularis from the Indo-Pacific, was analyzed using ten morphological
variables. The development of fins was considered owing to the importance of these structures for mimetic behaviors during early
life stages. Despite the anatomical and behavioral similarities in both juvenile and adult stages, C. faber and P. orbicularis showed
distinct patterns of growth. The overall shape of C. faber transforms from a rounded-shape in mimetic juveniles to...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00302/41370/40561.pdf
Coastal GIS at the turn of the century
Provedor de dados: 5
Autores: Barrtlet, Darius; Fowler, Cindy; Longhorn, Roger; Cuq, François; Loubersac, Lionel.
The final session of CoastGIS'99 took the form of a panel discussion, led and chaired by Darius Barrlett with contributions From
Cindy Fowler, Roger Longhorn, Francois Cuq, Ron Furness ancl Lionel Loubersac. This was followed by a wider discussion of
topics and issues raised, and included several interventions and commentaries from the floor. What follows is an edited transcript
of the main points raised. While based on the verbal contributions from those named, editorial responsibility rests entirely with the
session chair.
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00191/30235/28658.pdf
Etude et optimisation du fonctionnement d'une colonne airlift à dépression : application à
l'aquaculture
Provedor de dados: 5
Autores: Barrut, Bertrand.
The aim of this work was to study the three functions of a vacuum airlift, which are water pumping, mass transfer and foam
fractionation. The investigations mainly focused on the treatment of fish culture water and on phytoplancton harvesting_ Each
function was studied separately, in order to assess the performance of the vacuum airlift with specific operating conditions. By
studying the airlift pump, the effects of water and diffuser types, air injection conditions and depression level were shown. In fresh
water, bubble coalescence was observed, which reduced gas holdup compared to sea water. Consequently, the water flow of the
vacuum airlift appeared higher in fresh water than in sea water (30 to 35 m3.h-1 against 10 to 20 m3.h-l) for the same air flow...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00050/16091/13979.pdf
Foam fractionation efficiency of a vacuum airlift—Application to particulate matter removal in
recirculating systems
Provedor de dados: 5
Autores: Barrut, Bertrand; Blancheton, Jean-paul; Callier, Myriam; Champagne, Jean-yves; Grasmick, Alain.
The accumulation of particulate organic matter (POM) in recirculating aquaculture systems (RAS) has become an important issue
with the intensification of finfish production. The objective of this study was to assess the foam fractionation efficiency of a
vacuum airlift in different conditions (POM concentrations, airflow rates, bubble sizes, water renewal rates and feed addition). In
sea water, the vacuum airlift allowed removing 20% of the initial POM concentration per hour (foam fractionation efficiency),
corresponding to a 20.7-fold concentration factor between the tank and the foam. In rearing conditions, efficiency increased with
decreasing water renewal rate or increasing POM concentration. An increase in airflow rate from 10 to 80 L min−1 in the...
Tipo: Text
Palavras-chave: POM; Vacuum airlift; Foam fractionation efficiency; RAS; Aquaculture.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00138/24910/23576.pdf
Water delivery capacity of a vacuum airlift – Application to water recycling in aquaculture systems
Provedor de dados: 5
Autores: Barrut, Bertrand; Blancheton, Jean-paul; Champagne, Jean-yves; Grasmick, Alain.
A study was undertaken to measure the water flow (Qw) delivered by a vacuum airlift designed for recirculating aquaculture
systems (RAS) in fresh (<1‰ of salinity) and sea water (35‰ of salinity). The vacuum airlift consists of two concentric tubes
connected at their top to a depression chamber. The water rises in the inner tube as a result of air being injected in its lower section
and flows back through the external downcomer tube. The vacuum airlift was adjusted at three different lengths: 2, 4 or 6 m and
water discharge could be lifted from 0 to 30 cm. Air flow rate (Qg) varied from 0 to 80 L min−1. Different types of air injectors
were tested, delivering different bubble sizes (0.1–5 mm) depending on porosity and functioning at low or high...
Tipo: Text
Palavras-chave: Water circulation; Airlift; Vacuum; Aquaculture; RAS; Salinity.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00073/18457/16005.pdf
Mass transfer efficiency of a vacuum airlift-Application to water recycling in aquaculture systems
Provedor de dados: 5
Autores: Barrut, Bertrand; Blancheton, Jean-paul; Champagne, Jean-yves; Grasmick, Alain.
In aquaculture, oxygen transfer and carbon dioxide stripping are the first limiting factors to fish rearing intensification. In this
study we measured the O-2 and CO2 mass transfer coefficient (K(L)a) for a vacuum airlift in fresh (<1% salinity) and sea water
(35 parts per thousand salinity) recirculating aquaculture systems (RAS). The airlift was composed of two concentric tubes: an
inner riser tube and an external downcomer tube and can be adjusted at three different heights: 2,4 or 6 m. Several types of air
injectors were tested, delivering different sizes of bubble swarms depending on their porosity and functioning conditions (low or
high injection pressure), with air flows varying from 0 to 80 L min(-1). Experiments were also carried out at...
Tipo: Text
Palavras-chave: Mass transfer; Airlift; Vacuum; Aquaculture; RAS; Aeration; Degasification; Salinity.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00072/18324/16001.pdf
Separation efficiency of a vacuum gas lift for microalgae harvesting
Provedor de dados: 5
Autores: Barrut, Bertrand; Blancheton, Jean-paul; Muller-feuga, Arnaud; Rene, Francois; Narvaez, Cesar; Champagne,
Jean-yves; Grasmick, Alain.
Low-energy and low-cost separation of microalgae from water is important to the economics of microalgae harvesting and
processing. Flotation under vacuum using a vacuum gas lift for microalgae harvesting was investigated for different airflow rates,
bubble sizes, salinities and harvest volumes. Harvesting efficiency (HE) and concentration factor (CF) of the vacuum gas lift
increased by around 50% when the airflow rate was reduced from 20 to 10 L min(-1). Reduced bubble size multiplied HE and CF
10 times when specific microbubble diffusers were used or when the salinity of the water was increased from 0 parts per thousand
to 40 parts per thousand. The reduction in harvest volume from 100 to 1 L increased the CF from 10 to 130. An optimized vacuum
gas lift...
Tipo: Text
Palavras-chave: Microalgae; Foam; Flotation; Vacuum gas lift; Harvesting efficiency.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00130/24107/22369.pdf
Etude et modélisation d'un procédé innovant de traitement de l'eau : l'airlift sous dépression
Provedor de dados: 5
Autores: Barrut, Bertrand; Blancheton, Jean-paul; Rene, Francois; Champagne, Jean-yves; Grasmick, Alain; Bosc, Pierre.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00050/16089/13566.pdf
Choosing altimeter orbits as a problem in experiment design
Provedor de dados: 5
Autores: Barth, Nh.
A quantitative approach based on sampling theory and experiment design was used to evaluate configurations of satellite borne
altimeters. A simple 2D representation of the experiment design problem, retaining most of the major design issues was
implemented. Two different oceanic regions - a large/slow (equatorial Pacific) and a small/fast (Atlantic mid-latitude) region were selected. The sampling characteristics of configurations of two or three altimeters - all constrained to be of the
Topex/Poseidon (T/P) type - vis a vis the two regions were investigated under changes in phase angle between the orbital planes
of the altimeters. The preferred arrangement for two T/P altimeters is a separation of 180-degrees. This arrangement
simultaneously samples the...
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00101/21176/18793.pdf
Étude théorique de l'action des courants de marée et des houles sur les sédiments du plateau
continental du Golfe de Gascogne
Provedor de dados: 5
Autores: Barthe, X; Castaing, P.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00106/21730/19303.pdf
Lutte biologique contre la proliferation de l'etoile de mer: Asterias rubens en baie de Quiberon
Provedor de dados: 5
Autores: Barthelemy, G.
In 1989 and 1990, the Brittany Region has conceded a subvention to the shellfish professional organisation, for a study on the sea
star proliferation Asterias rubens ; this species is a predator of reared oysters in subtidal zone, specially in the Bay of Quiberon
(South Brittany). The sea star species Luidia ciliaris has been identified as an A. rubens predator in laboratory. In presence of A.
rubens and various molluscs species, the exclusive prey L. ciliaris is A. rubens . Even deprived of A. rubens they do not eat any
bivalve. The first result led us to set up an introduction test of L. ciliaris as the main predator of A. rubens and their relative spatial
stability. In prospect of mass introduction of L. ciliaris in the bay, reproduction experiments...
Tipo: Text
Palavras-chave: ANE; France; Brittany; Quiberon Bay Asterias rubens Luidia ciliaris Marine molluscs Biological control Oyster
culture Predators.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-921.pdf
Meanders, eddies and intrusions in the thermohaline front off northwest africa
Provedor de dados: 5
Autores: Barton, Ed.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00108/21903/19494.pdf
Lee region of Gran Canaria
Provedor de dados: 5
Autores: Barton, Ed; Basterretxea, G; Flament, Pierre; Mitchelson-jacob, Eg; Jones, B; Aristegui, J; Herrera, F.
The mountainous Canary Islands present obstacles to the trade winds and to the Canary Current flowing equatorward past them. In
situ observations of hydrographic properties and surface winds south of Gran Canaria, together with advanced very high
resolution radiometer and synthetic aperture radar images during 2 weeks in summer 1995 are analyzed, A cyclonic eddy shed
from the west of the island drifted southwestward at 5 cm s(-1), while the southeast coast was approached by an upwelling
filament originating: off NW Africa. A wind lee region bounded by intense horizontal sheer lines had a weak return islandward
wind in its center. The lee formed a triangular, diurnally varying, warm water pool with two sea surface temperature maxima
separated by lower...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00000/10502/9400.pdf
Vertical shear observed at contrasting sites over the continental-slope off nw africa
Provedor de dados: 5
Autores: Barton, Ed; Hughes, P; Simpson, Jh.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00120/23153/20998.pdf
Processus hydrodynamiques et morphosedimentaires de l'environnement des barres d'avant-cote du
littoral du Golfe du Lion
Provedor de dados: 5
Autores: Barusseau, J P; Brissaud, L; Drapeau, G; Long, B.
Factors such as the origin of the material involved in the profile equilibrium, or the rate of sea level rise are important in partially
controlling the shoreline evolution. In the Gulf of Lions (Mediterranean Sea), the linear and crescentic offshore bars constitute
another factor which prevents the use of simple models such as the power function y = ax super(b). A relevant parameter to
improve our understanding seems to be the shape of the profile recorded normally to the shore and the definition of its interannual
fluctuations. This project works out a number of regular surveys, in time and space, from permanently located landmarks. Each
landmark constitutes an observatory and the measurements reported here: bathymetry, topography, sedimentology and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37881/35962.pdf
Méthodologie pour une simulation des transformations granulométriques de sables de la zone
d'avant-côte
Provedor de dados: 5
Autores: Barusseau, Jp; Diouf, Mb; De La Bardonnie, M; El Ghandour, N.
The grain-size of mature coastal sands changes rapidly in response to the variation of the energy regime which provokes either
erosion or deposition of fractions of the textural assemblage. Whatever the dynamic conditions, questions of paramount
importance such as the size of grain populations transported simultaneously, the most common size of the grains in movement and
the grain-size range of the sediment fraction involved ape still poorly understood. The present paper deals with an attempt to
describe this fraction without any consideration of the processes responsible for the observed changes. A major problem results
from the fact that the distribution of the mobilized fraction cannot be known and described by direct comparison between the
initial and...
Tipo: Text
Palavras-chave: Granulométrie; Fraction mobile; Modélisation; Simulation; Grain-size; Mobile fraction; Modelling; Simulation.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43619/43919.pdf
Origin of surface textures on quartz grains in sediments of the upper cayar deep-sea fan
(senegal-gambia abyssal-plain)
Provedor de dados: 5
Autores: Barusseau, Jp; Kounkou, Gl.
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00131/24223/22216.pdf
Disposition, caractères et formation des barres d'avant-côte festonnées du Golfe du Lion
Provedor de dados: 5
Autores: Barusseau, Jp; Saintguily, B.
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00131/24197/22190.pdf
Apports et limites de l’économie industrielle à l’analyse des performances d’une filière halieutique
Provedor de dados: 5
Autores: Bas, Adeline; Fresard, Marjolaine; Guyader, Olivier; Lesur-irichabeau, Gabrielle; Fournier, Nicolas; Le Gallic,
Bertrand.
Ce document présente une des tâches en économie réalisée dans le cadre du projet ANR Comanche (Interactions écosystémiques
et impacts anthropiques dans les populations de COquilles Saint-Jacques de la MANCHE). Ce projet d’une durée de trois ans
(2011-2013) a vocation à améliorer la connaissance de la coquille St Jacques à l’échelle de l’ensemble de la Manche, à travers une
approche écosystémique des pêcheries, en faisant appel à un large éventail de disciplines scientifiques (physique, chimie,
génétique, écologie, géostatistique, modélisation, économie….). La tâche en économie de ce projet (tâche 9) vise à étudier les
relations entre les systèmes de régulation des deux principaux gisements (baie de St Brieuc et baie de Seine) et les performances...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00241/35225/33728.pdf
Consequences of larval feeding environment for settlement and metamorphosis of a temperate
echinoderm
Provedor de dados: 5
Autores: Basch, Lv; Pearse, Js.
Relationships between phytoplankton biomass and recruitment strength of benthic invertebrates with feeding larvae have been
considered only in the numerical sense, not in terms of the condition of individuals at settlement. Since material and energy in
some larval structures is transformed at metamorphosis into post-larval structures, and since their development is food-dependent,
we hypothesized that plankton food availability links the ecology of the transition between invertebrate larvae and juveniles. We
tested this hypothesis in laboratory and field experiments with the sea star Asterina miniata. Sibling larvae were reared in sea
water containing natural phytoplankton at three concentrations simulating either (1) oligotrophic offshore, (2) temperate...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20487/18157.pdf
Surface signature of Mediterranean water eddies in the Northeastern Atlantic: effect of the upper
ocean stratification
Provedor de dados: 5
Autores: Bashmachnikov, I.; Carton, Xavier.
Meddies, intra-thermocline eddies of Mediterranean water, can often be detected at the sea surface as positive sea-level anomalies.
Here we study the surface signature of several meddies tracked with RAFOS floats and AVISO altimetry. While pushing its way
through the water column, a meddy raises isopycnals above. As a consequence of potential vorticity conservation, negative
relative vorticity is generated in the upper layer. During the initial period of meddy acceleration after meddy formation or after a
stagnation stage, a cyclonic signal is also generated at the sea-surface, but mostly the anticyclonic surface signal follows the
meddy. Based on geostrophy and potential vorticity balance, we present theoretical estimates of the intensity of the surface...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00133/24424/22437.pdf
Characteristics of surface signatures of Mediterranean water eddies
Provedor de dados: 5
Autores: Bashmachnikov, I.; Carton, Xavier; Belonenko, T. V.
In this work, we obtain new results on the manifestation of meddies (or of other deep eddies) at the sea-surface, further developing
the results by Bashmachnikov and Carton (2012). The quasi-geostrophic equations are used to describe a near-axisymmetric
vortex in the upper ocean, forced at its lower boundary by the isopycnal elevation of a moving meddy. The solution thus obtained
provides a better approximation of the characteristics of meddy surface signals. The results show that in subtropics large meddies
with dynamic radius R-m >30 km are always seen at the sea-surface with AVISO altimetry, that medium-size meddies with
R-m = 20 km may be seen at the sea-surface only if they are sufficiently shallow and strong, while small meddies with R-m =10
km...
Tipo: Text
Palavras-chave: Meddies; Surface signal; Altimetry.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00245/35615/34134.pdf
Temperature-salinity distribution in the northeastern Atlantic from ship and Argo vertical casts
Provedor de dados: 5
Autores: Bashmachnikov, I.; Neves, F.; Nascimento, A.; Medeiros, J.; Ambar, I.; Dias, J.; Carton, Xavier.
The present study defines new interpolation functions for hydrological data. These functions are applied to generate climatological
maps of temperature-salinity distribution with a 25 m depth interval and a 30 km space interval (MEDTRANS data set). The data
undergo rigorous initial data quality control, having passed several filtering procedures. The gridding is done on neutral density
surfaces, which allows better representation of thermohaline fronts for the same gridding radius. The multi-pass Barnes optimum
interpolation procedure with spatially variable size of the gridding window is used. The shape of the window accounts for the
dominant along-isobath direction of water mass transport over steeply sloping topography. A local ratio of topographic to...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00266/37729/35735.pdf
The 100-ka and rapid sea level changes recorded by prograding shelf sand bodies in the Gulf of Lions
(western Mediterranean Sea)
Provedor de dados: 5
Autores: Bassetti, Maria-angela; Berne, Serge; Jouet, Gwenael; Taviani, M; Dennielou, Bernard; Flores, J; Gaillot, Arnaud;
Gelfort, R; Lafuerza, S; Sultan, Nabil.
Thick forced regressive units on the wide continental shelf of the Gulf of Lions (western Mediterranean) recorded the composite
effect of sea level changes during the Quaternary. They are mostly composed of coastal siliciclastic and bioclastic wedges
showing clinoform geometry. These deposits have been intensively explored through high-resolution seismic investigations, but
only recently it was possible to ground truth seismic interpretations, based on a long (100 m) borehole that crossed the succession
and recovered a large part of the mainly sandy deposits (similar to 84% recovery). A multiproxy analysis of the sedimentary
succession shows that (1) the stratal architecture of the shelf margin is defined by major bounding surfaces that are polygenic...
Tipo: Text
Palavras-chave: Paleoclimate; Mediterranean; Quaternary; Shoreface.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4929.pdf
Sand bodies at the shelf edge in the Gulf of Lions (Western Mediterranean): Deglacial history and
modern processes
Provedor de dados: 5
Autores: Bassetti, Maria-angela; Jouet, Gwenael; Dufois, Francois; Berne, Serge; Rabineau, Marina; Taviani, M.
The outer continental shelf of the Gulf of Lions is covered by thick, mainly regressive, sand deposits. A combination of seismic,
sedimentological and geochronological methods allows us to demonstrate that a veneer of transgressive sand bodies, few m to less
than 1 m thick, reworks these deposits. They take the form of sand ridges and transverse dunes that formed at different periods. In
fact, the low-gradient outer shelf of the Gulf of Lions displays a complete record of deglacial history, including not only
transgressive deposits that formed during sea-level rise, but also bedfonns that still evolve under episodic high-energy events that
occur under more highstand conditions. Core lithology, C-14 dates and regional sea-level curve suggest that the...
Tipo: Text
Palavras-chave: Gulf of Lions; Sand transport; Deglacial transgression; Outer shelf; Sand ridges.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2321.pdf
Acceptabilité du milieu - rade de Brest. Etude des suspensions au microscope électronique à balayage
et à la microsonde (sédimentologie et microbiologie)
Provedor de dados: 5
Autores: Bassoulet, Philippe; Pommepuy, Monique; Cormier, Michel.
Dans le programme "Acceptabilité du Milieu -Rade de Brest" on observe une décroissance des concentrations bactériennes des
émissaires vers le large.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00048/15948/13378.pdf
Hydrosedimentological processes and soils of the barito estuary (south-kalimantan, indonesia)
Provedor de dados: 5
Autores: Bassoullet, Philippe; Djuwansah, R; Gouleau, D; Marius, C.
A pluridisciplinary study was carried out in the south-eastern part of Kalimantan (Indonesia) in a deltaic area close to Banjarmasin
town. Upstream from Banjarmasin, Barito river divides into two branches, one of which meets the Kapuas river slightly further to
the west, to form the Kapuas Murung estuary. This programme is designed to increase knowledge about the physical and
sedimentological processes, physical and chemical properties of the soils, and hydrological and chemical parameters of the Barito
estuary. Barito estuary was chosen for two main reasons. First, it constitutes an important waterway for the region, on which
Banjarmasin harbour is located; second, the management of the sparsely occupied coastal areas is becoming a priority. The...
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00110/22110/19748.pdf
Rejets urbains. Volet Manche - Atlantique - Site de Morlaix - Etudes sédimentologique et
Bathymétrique de l' estuaire de Morlaix
Provedor de dados: 5
Autores: Bassoullet, Philippe; L'Yavanc, Jacky; Guillaud, Jean-francois; Loarer, Ronan; Breton, Marguerite.
In order to increase our knowledge about sediment transport in the bay and maritime part of the River of Morlaix (Finistère),
measurernènts have been perforrned on site. This report gives the granulometrical and physical parameters of the sediments as
weIl as the hydrodynamics, used for a model of particulate transport in the area. The rnodel and its application will be published
later
Tipo: Text
Palavras-chave: Rejet urbain; Sédiment; Granulométrie; Hydrodynamique; Modèle de transport particulaire; Sable; Vase;
Estuaire de Morlaix.; Urban wastes; Model; Sediment; Granulometry; Hydrodynamics; Sand; Mud; Sedimentary transport model;
Morlaix estuary.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00345/45658/45293.pdf
Utilisation d’un altimètre (ALTUS) destiné à la quantification des dépôt/érosion en domaine littoral
pour l’étude des corrélations avec les caractéristiques de vagues et les interfaces de dépôt
Provedor de dados: 5
Autores: Bassoullet, Philippe; Verney, Romaric; Kervella, Youen; Kervella, Stephane; Jestin, Herve; Voineson, Guillaume.
Quantitative evaluation of erosion/deposition events of surficial sediments is crucial to understand the processes and establish
sedimentary budgets in coastal areas The ALTUS system was designed for more than a decade, to meet this objective The
possibilities offered by this altimeter (short-term or several months measurements) are particularly fitted for validation of
sedimentary transport numerical models The recent integration of a large capacity memory card has allowed to optimize the
system Indeed it is well established that wave activity is one of the key parameters for the erosion and hence govern sediment
transport in intertidal/shallow water areas The ALTUS system in addition to bottom level variation recordings allows access to
wave...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00019/13036/10170.pdf
Looking for Mnemiopsis leidyi in Dunkirk Harbour (Southern North Sea, France)
Provedor de dados: 5
Autores: Bastian, Thomas; Antajan, Elvire; Vincent, Dorothee.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00259/37020/35520.pdf
Benthic communities of the argentine continental-shelf
Provedor de dados: 5
Autores: Bastida, R; Roux, A; Martinez, De.
The benthic macroinvertebrate assemblages of the Argentine continental shelf were studied from samples of molluscs,
echinoderms and bryozoans collected by the RN Shinkai Maru. Two major faunal groups were distinguished: one inhabiting the
warmer inner shelf off Buenos Aires and northern Patagonia, and the other occupying the colder middle and outer shelf off
Buenos Aires and most of the Patagonian shelf. These results confirm the traditional biogeographic division of the Argentine
continental shelf into two provinces: Argentine and Magellanic. Furthermore, the results suggest the possibility of subdividing the
Atlantic sector of the Magellanic province into two districts: Patagonian and Malvinean, under the influence of the Patagonian and
the Malvinas...
Tipo: Text
Palavras-chave: BENTHIC COMMUNITIES; ARGENTINE CONTINENTAL SHELF; SOUTHWESTERN ATLANTIC;
BIOGEOGRAPHY; SEDIMENTS.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00101/21234/18851.pdf
Influence d'un parasite haemarophagen: Lernalocera bronchialis (L., 1767) (Crustacea, Copepoda,
(Pennellidae), sur les constances erythrocytaires de son hote Merluccius merluccius (L., 1758)
Provedor de dados: 5
Autores: Bastide-guillaume, C; Douellou, L; Romestand, B; Trilles, J.
A hematological study of erythrocytic constants of a teleost fish, the European hake Merluccius merluccius has been undertaken
to evaluate the effect of infestation by the branchial parasitic copepode: Lernaeocera branchialis . As the levels of parasitic
infestation increased: a normocytic, normochromic anaemia when fish had one adult female parasite present, a microcytic anaemia
when between 2 and 4 adult females were found and a macrocytic anaemia when at least 5 adult females were present. There was
no significant difference in body condition or the coefficient of spleen to body weight between the control sample and samples of
individuals infested by Lernaeocera branchialis.
Tipo: Text
Palavras-chave: Merluccius merluccius; Lernaeocera branchialis; Anemia; Hematology; Parasitic diseases.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-1775.pdf
Analyse des pêches et modes de régulation - Rapport sur la journée d'échange
Recherche-Administration-Profession
Provedor de dados: 5
Autores: Bastien, Françoise; Catanzano, Joseph.
Depuis la dernière journée RECHERCHE-ADMINISTRATIONPROFESSION consacrée aux « licences », trois ans se sont
écoulés, au cours desquels sont apparus de nouveaux impératifs et de nouvelles contraintes tant économiques que politiques,
parmi lesquelles de nombreux systèmes de régulation visant à limiter directement ou indirectement l'effort de pêche. Certains
systèmes de gestion des pêcheries, aujourd'hui assez largement éprouvés, avaient été abordés et analysés lors de la première
rencontre de ce type, et la mise en commun des idées par les différents acteurs de l'interprofession avait permis, sinon de mieux
accepter, à tout le moins, de mieux appréhender les grands principes qui avaient présidé aux prises de décision nationales.
Depuis lors, d'autres...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00086/19697/17338.pdf
Les mortalités d'ormeaux en Bretagne et Normandie : mise en évidence de l'agent causal
Provedor de dados: 5
Autores: Basuyaux, Olivier; Nicolas, Jean-louis; Mazurie, Joseph; Thebault, Anne.
In summer 1997, massive abalone Haliotis tuberculata mortalities are monitored on the coast of Brittany, near Concarneau. They
then spread out to the north of Brittany (1998) and to the Norman-Breton Bay in 1999. 60 to 80 % of the abalone populations died
without any noticeable symptoms. In 1999, these mortalities reached cultivated abalones at the SMEL hatchery (Blainville). A
septicemic bacteria was isolated from every organ (muscle, mucus gland, haemolymph ...) collected from abalones that had just
died.
Tipo: Text
Palavras-chave: Haliotis tuberculata; Ormeaux; Pathologie; Mortalités.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3276.pdf
Impact hydrodynamique de la mise en place d’un parc d’hydroliennes en Baie du Mont Saint-Michel
Provedor de dados: 5
Autores: Batifoulier, Francois; Kervella, Youen; Laborde, Renaud; Cuny, Jérôme; Caillaud, Matthieu; Lazure, Pascal; Cayocca,
Florence.
Les fortes vitesses rencontrées à l’entrée de la Baie du Mont Saint-Michel font de cet environnement macro-tidal un endroit
privilégié, en termes de ressources énergétiques, pour l’implantation d’une ferme d’hydroliennes. Afin d’établir plus précisément
son potentiel énergétique et d’évaluer l’impact de l’implantation de telles machines sur son hydrodynamisme, une modélisation
hydrodynamique de la Baie du Mont Saint-Michel est mise en oeuvre à l’aide du modèle de circulation régionale MARS3D
(LAZURE & DUMAS, 2008) dans sa version tridimensionnelle. La validation hydrodynamique de cette configuration est
réalisée à partir de comparaisons à des mesures courantologiques récentes (KERVELLA, 2010). A partir de cette modélisation,
une cartographie du...
Tipo: Text
Palavras-chave: Modélisation régionale; Hydroliennes; Baie du Mont Saint-Michel; Hydrodynamisme; Potentiel énergétique.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00195/30599/29055.pdf
Poleward coastal jets induced by westerlies in the Bay of Biscay
Provedor de dados: 5
Autores: Batifoulier, Francois; Lazure, Pascal; Bonneton, Philippe.
Two hydrodynamic surveys based on acoustic Doppler current profiler (ADCP) and drift buoys measurements taken in summer
2008 and 2009 revealed poleward coastal jets of up to 32 cm s(-1) that lasted up to 22 d along the Aquitaine shelf in the
southeastern area of the Bay of Biscay. A strong increase in bottom temperature was associated with these currents, up to 4
degrees C in 5 d at 54 m depth. These observations occurred after a few days of westerlies, cross-shore winds which were thought
to have only a limited impact on longshore circulation. Here, the MARS3D hydrodynamic model was used with a schematic
bathymetry of the southeastern area of the Bay of Biscay to reproduce and analyze these coastal jets. Simulations revealed that the
triggering mechanism...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00074/18569/16123.pdf
Infestation of the cupped oysters Crassostrea angulata, C. gigas and their first-generation hybrids by
the copepod Myicola ostreae: differences in susceptibility and host response
Provedor de dados: 5
Autores: Batista, F. M.; Boudry, Pierre; Dos Santos, A.; Renault, Tristan; Ruano, F.
We Studied the prevalence and intensity of the parasitic copepod Myicola ostreae in 2 closely related oysters Crassostrea angulata
and C. gigas and their F1 hybrids. The effects on host and host reaction were also analysed to better understand host-parasite
relationships between copepods and bivalve molluscs. Full reciprocal crosses were carried out between C. angulata and C. gigas
and the progenies were reared in the wild in Ria Formosa Lagoon (Portugal), allowing natural infestation by M. ostreae.
Prevalence and intensity were significantly higher in C. angulata than in C. gigas. The parasite level of F1 hybrids was similar to
C. angulata and significantly higher than in C. gigas. The results of our study support a hypothesis of dominantly inherited...
Tipo: Text
Palavras-chave: Encapsulation; Host reaction; Host parasite relationship; Dominance inherence; Parasitism; Hybridization;
Copepods; Oysters.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6442.pdf
Detection of ostreid herpesvirus 1 DNA by PCR in bivalve molluscs: A critical review
Provedor de dados: 5
Autores: Batista, Frederico; Arzul, Isabelle; Pepin, Jean-francois; Ruano, Francisco; Friedman, Carolyn S.; Boudry, Pierre;
Renault, Tristan.
Herpes-like viral infections have been reported in different bivalve mollusc species throughout the world. High mortalities among
hatchery-reared larvae and juveniles of different bivalve species have been associated often with such infections. The diagnosis of
herpes-like viruses in bivalve molluscs has been performed traditionally by light and transmission electron microscopy. The
genome sequencing of one of these viruses, oyster herpesvirus 1 (OsHV-1), allowed the development of DNA-based diagnostic
techniques. The polymerase chain reaction (PCR) has been used for the detection of OsHV-1 DNA in bivalve molluscs at different
development stages. In addition, the PCR used for detection of OsHV-1 has also allowed the amplification of DNA from an
OsHV-1...
Tipo: Text
Palavras-chave: Oyster; Bivalve molluscs; PCR; Detection; OsHV 1; Herpesvirus.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2322.pdf
Comparative study of shell shape and muscle scar pigmentation in the closely related cupped oysters
Crassostrea angulata, C. gigas and their reciprocal hybrids
Provedor de dados: 5
Autores: Batista, Frederico; Ben-hamadou, Radhouan; Fonseca, Vera; Taris, Nicolas; Ruano, Francisco; Reis-henriques, Maria;
Boudry, Pierre.
The taxonomic status of the cupped oysters Crassostrea angulata and C. gigas has received considerable attention in the last
decades. Based on larval shell morphology, experimental hybridization, allozymes and nuclear DNA studies several authors have
considered these two taxa as being synonymous. However, mitochondrial data showed clear genetic differences between the two
taxa. In addition, microsatellite-based studies and cytogenetic studies have also provided evidence that supports their
differentiation. Considerable differences have also been observed at the phenotypic level in terms of growth rate and
ecophysiological parameters. In the present study, C. angulata from Sado estuary (Portugal) and C. gigas from Seudre estuary
(France) were collected and...
Tipo: Text
Palavras-chave: Crassostrea gigas; Crassostrea angulata; Hybridization; Shell pigmentation; Shell morphology.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3904.pdf
Is the Portuguese oyster Crassostrea angulata in Southern Europe endangered by the expansion of the
Pacific oyster C. gigas?
Provedor de dados: 5
Autores: Batista, Frederico; Boudry, Pierre; Lapegue, Sylvie; Heurtebise, Serge; Monteiro, C. C.
The Portuguese oyster, Crassostrea angulata, was introduced from Portugal to the French Atlantic Coast in the 1860s. C. angulata
quickly settled and expanded and leaded to the development of a new aquacultural industry in France. In the late 1960s, mortality
associated with the detection of an iridovirus, led to the wipe out of C. angulata from French Atlantic waters and to the massive
introduction of C. gigas to sustain production. In Southern Europe, similar symptoms were also observed in natural stocks of C.
angulata from Sado River (Portugal) and from the area of Cadiz (Spain). Nowadays, only very few «pure» populations of C.
angulata remain in southern Europe. These populations are potentially endangered by the current expansion of C. gigas...
Tipo: Text
Palavras-chave: Selection; Hybridization; Settlement pattern; Population genetic; Genetic; Oysters; Crassostrea angulata;
Crassostrea gigas.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3310.pdf
Hybridization and morphological differences between the two closely related oyster taxa Crassostrea
angulata and C. gigas
Provedor de dados: 5
Autores: Batista, Frederico; Fonseca, Vera; Ben-hamadou, Radhouan; Taris, Nicolas; Henriques, Maria; Boudry, Pierre.
Unlike in some crops, no large heterotic effects have been observed in most farmed animals. Interestingly, significant hybrid
vigour for some traits has been reported in the Pacific oyster, Crassostrea gigas. Crossbreeding between closely related taxa can be
seen as an efficient way to exploit the dominance component of the genetic variance of a trait. Factorial crosses between the
Portuguese oyster C. angulata (from Sado estuary, Portugal) and C. gigas (from Seudre estuary, France) were done to evaluate the
aquaculture potential of hybrids. Juveniles of the different progenies were reared in Ria Formosa (Portugal) under usual farming
conditions. The genetic confirmation of all progenies was done using mitochondrial and nuclear markers in order to detect...
Tipo: Text
Palavras-chave: Hybridization; Crassostrea angulata; Crassostrea gigas; Genetic; Oyster.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3429.pdf
The taxonomic status and origin of the Portuguese oyster Crassostea angulata (Lamark, 1819)
Provedor de dados: 5
Autores: Batista, Frederico; Leitao, Alexandra; Huvet, Arnaud; Lapegue, Sylvie; Heurtebise, Serge; Boudry, Pierre.
The taxonomic status of the Portuguese oyster Crassostrea angulata and the Pacific oyster Crassostrea gigas has often been a
matter of controversy. Based on larval shell morphology, experimental hybridisation and electrophoretic studies of enzyme
polymorphism several authors have considered these two species as being synonymous. During the recent years, several genetic
studies based on mitochondrial DNA and microsatellites data have provided evidences that the two taxa are genetically distinct
although closely related. Furthermore, karyotype analyses have also highlighted the close genetic similarity of these taxa in
comparison with other cupped oyster species. However, a comparative analysis of restriction enzymes ideograms revealed
differences between...
Tipo: Text
Palavras-chave: Geographical origin; Phylogenetic; Genetic; Taxonomic status; Crassostrea angulata; Oyster.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3433.pdf
Insights on the association between somatic aneuploidy and ostreid herpesvirus 1 detection in the
oysters Crassostrea gigas, C. angulata and their F1 hybrids
Provedor de dados: 5
Autores: Batista, Frederico M.; Lopez-sanmartin, Monserrat; Boudry, Pierre; Navas, Jose I.; Ruano, Francisco; Renault, Tristan;
Fonseca, Vera G.; Leitao, Alexandra.
Cytogenetic abnormalities associated with viral infections, including from viruses of the Herpesvirales order, have been reported
in vertebrate species. Ostreid herpesvirus 1 (OsHV-1) has been detected worldwide during mortality outbreaks of the Pacific
oyster Crassostrea gigas. On the other hand, a high proportion of aneuploid cells in somatic tissues have been observed in C.
gigas. In this study, we analysed the putative association between aneuploidy levels and the detection of OsHV-1 in gills of C.
gigas, the Portuguese oyster C. angulata and their F1 hybrids cultured in Ria Formosa (Portugal). OsHV-1 was detected by PCR in
5.4% of the total of oysters analysed (n = 111) namely in 11.1%, 8.0% and 1.7% of C. gigas, C. angulata and F1 hybrid...
Tipo: Text
Palavras-chave: Aneuploidy; Ostreid herpesvirus 1; Oyster; Crassostrea.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00215/32581/35759.pdf
Detection of ostreid herpesvirus-1 (OsHV-1) by PCR using a rapid and simple method of DNA
extraction from oyster larvae
Provedor de dados: 5
Autores: Batista, Frederico; Taris, Nicolas; Boudry, Pierre; Renault, Tristan.
A DNA extraction procedure was developed for the detection of ostreid herpesvirus-1 (OsHV-1) using the polymerase chain
reaction (PCR) in oyster larvae. The DNA extraction procedure developed was tested on 8 larval samples. Abnormal nuclei with
characteristic features associated with OsHV-1 infections were only observed in samples in which the viral DNA was detected by
PCR. A previously described competitive PCR method was applied to detect inhibition during PCR reactions. The results show
that the method can be used on small amounts of oyster larvae (3 mg) for the detection of OsHV-1 DNA by PCR.
Tipo: Text
Palavras-chave: DNA extraction; Detection; L