The love-darts of land snails: integrating physiology, morphology
... have spines on their penes that damage the female tract (Crudgington and SivaJothy, 2000; Hotzy and Arnqvist, 2009). A comparative analysis by Rönn et al. (2007) revealed that females belonging to species in which males have more elaborate penial spines had a thicker connective tissue layer in the v ...
... have spines on their penes that damage the female tract (Crudgington and SivaJothy, 2000; Hotzy and Arnqvist, 2009). A comparative analysis by Rönn et al. (2007) revealed that females belonging to species in which males have more elaborate penial spines had a thicker connective tissue layer in the v ...
Natural History, Ecology and Evolution of Aedes aegypti and Aedes
... sympatry with A. albopictus will evolve a mechanism(s) to avoid wasteful interspecific ...
... sympatry with A. albopictus will evolve a mechanism(s) to avoid wasteful interspecific ...
in Colombia - Revista Javeriana - Pontificia Universidad Javeriana
... Female 2 (Figure 4): Mature specimen with embryos macroscopically visible in utero. Right uterus with candle contained one embryo at an early stage of development (2.2 cm LTE) and a large external yolk sac, small follicles, and enlarged oviducal gland. Left uterus empty and expanded, developing foll ...
... Female 2 (Figure 4): Mature specimen with embryos macroscopically visible in utero. Right uterus with candle contained one embryo at an early stage of development (2.2 cm LTE) and a large external yolk sac, small follicles, and enlarged oviducal gland. Left uterus empty and expanded, developing foll ...
The Fishprint of Aquaculture Can the Blue
... The remainder of this report is organized as follows. Section II documents the recent explosion in the scope and scale of global aquaculture operations. In Section III, a typology of aquaculture systems is discussed along with a preliminary sustainability assessment. Section IV reviews the environme ...
... The remainder of this report is organized as follows. Section II documents the recent explosion in the scope and scale of global aquaculture operations. In Section III, a typology of aquaculture systems is discussed along with a preliminary sustainability assessment. Section IV reviews the environme ...
IOTC Science Glossary
... Effort. A measure of the resources used to harvest a fishery’s stocks. The measure of effort appropriate for a fishery depends on the methods used and the management arrangements. Common measures include the number of vessels, the number of hooks set and the number of fishing days or nights. Effort ...
... Effort. A measure of the resources used to harvest a fishery’s stocks. The measure of effort appropriate for a fishery depends on the methods used and the management arrangements. Common measures include the number of vessels, the number of hooks set and the number of fishing days or nights. Effort ...
Extinction Rates in North American Freshwater Fishes
... California Academy of Sciences [retired], personal communication, 28 August 2011). About 43% of the world’s fishes are freshwater or diadromous species (Nelson 2006). Comparatively, the freshwater fish diversity of North America is less than those of Africa (about 2945 species), Asia (3533), and So ...
... California Academy of Sciences [retired], personal communication, 28 August 2011). About 43% of the world’s fishes are freshwater or diadromous species (Nelson 2006). Comparatively, the freshwater fish diversity of North America is less than those of Africa (about 2945 species), Asia (3533), and So ...
Seasonal distribution of immature pollock in the northern Okhotsk Sea
... Okhotsk Sea have been many times larger that earlier levels. Scientists from different countries process large amounts of data on near surface atmosphere and the upper and baroclinic layers of the ocean to identify step changes in the environment. This yields an objective picture of interannual vari ...
... Okhotsk Sea have been many times larger that earlier levels. Scientists from different countries process large amounts of data on near surface atmosphere and the upper and baroclinic layers of the ocean to identify step changes in the environment. This yields an objective picture of interannual vari ...
A Literature Review on the Poor Knights Islands Marine Reserve
... Knights Islands have been published (Doak, 1991; Edney, 2001; Anthoni, 2007). The tropical and subtropical element of the Poor Knights Islands fish fauna is continually changing. While some tropical species are able to breed and recruit around the Poor Knights Islands, other species, such as the moo ...
... Knights Islands have been published (Doak, 1991; Edney, 2001; Anthoni, 2007). The tropical and subtropical element of the Poor Knights Islands fish fauna is continually changing. While some tropical species are able to breed and recruit around the Poor Knights Islands, other species, such as the moo ...
Dragonflies and damselflies in your garden
... male and female are ready to breed. Males use claspers at the end of their bodies to grab a female, and the couples fly in tandem while they mate. After mating, the female lays her eggs, either alone or while still in tandem with the male. The females of some species deposit eggs directly into the w ...
... male and female are ready to breed. Males use claspers at the end of their bodies to grab a female, and the couples fly in tandem while they mate. After mating, the female lays her eggs, either alone or while still in tandem with the male. The females of some species deposit eggs directly into the w ...
What`s the Catch? Challenges and Opportunities of the U.S. Fishing
... Today, roughly half of the fish caught in the United States are harvested from a fishery under catch share management. However, as shown in figure 2a, catch share adoption varies widely by region, with fisheries in Alaska and on the West Coast establishing catch shares more readily than other U.S. r ...
... Today, roughly half of the fish caught in the United States are harvested from a fishery under catch share management. However, as shown in figure 2a, catch share adoption varies widely by region, with fisheries in Alaska and on the West Coast establishing catch shares more readily than other U.S. r ...
Fishes on the Antarctic continental shelf: evolution of a marine
... The Antarctic shelf is not contiguous with other shelf areas of the Southern Hemisphere, and is isolated from other landmasses by deep water. Another characteristic feature of the Antarctic shelf is its great depth: at 500 m it is eight times the world average (Anderson, 1999). The depth is due to d ...
... The Antarctic shelf is not contiguous with other shelf areas of the Southern Hemisphere, and is isolated from other landmasses by deep water. Another characteristic feature of the Antarctic shelf is its great depth: at 500 m it is eight times the world average (Anderson, 1999). The depth is due to d ...
Fish assemblages across a complex, tropical freshwater/marine
... Gilbert & Kelso (1971) data set. Gilbert & Kelso's sample of 2689 Pomadasyscrocro larvae from the Laguna Tortuguero on August 15, 1963represented an unusual collection from a single massive aggregation of migrating fish larvae. Because this large number would have greatly affected the entire distrib ...
... Gilbert & Kelso (1971) data set. Gilbert & Kelso's sample of 2689 Pomadasyscrocro larvae from the Laguna Tortuguero on August 15, 1963represented an unusual collection from a single massive aggregation of migrating fish larvae. Because this large number would have greatly affected the entire distrib ...
Productivity and biomass of fishes in the California Current Large
... the ichthyoplankton abundance and absolute biomass estimate, if significant, provided a linear relationship between the two that allowed spawning stock biomass to be estimated from larval abundance for years without stock biomass estimates. The time series were tested first for normality and homosce ...
... the ichthyoplankton abundance and absolute biomass estimate, if significant, provided a linear relationship between the two that allowed spawning stock biomass to be estimated from larval abundance for years without stock biomass estimates. The time series were tested first for normality and homosce ...
Fish - IUCN OPEN OCEAN CARBON REPORT
... pteropods also make key contributions (Schiebel, 2002). The role of these species in the open ocean C cycle is discussed in Section 3.1 by Roberts, Hopcroft and Dupont. Of the shallow marine calcifiers, corals are perhaps the most charismatic and well known. However, due to their limited distributio ...
... pteropods also make key contributions (Schiebel, 2002). The role of these species in the open ocean C cycle is discussed in Section 3.1 by Roberts, Hopcroft and Dupont. Of the shallow marine calcifiers, corals are perhaps the most charismatic and well known. However, due to their limited distributio ...
Reproductive Functions - health sciences at chs
... What are the functions of the female reproductive system? What are some common disorders of the female reproductive system? How do you relate the body’s hormone control to the female reproductive system? How do you relate the body’s use of nutrients to the female reproductive system? 4.06 Understand ...
... What are the functions of the female reproductive system? What are some common disorders of the female reproductive system? How do you relate the body’s hormone control to the female reproductive system? How do you relate the body’s use of nutrients to the female reproductive system? 4.06 Understand ...
The Program of and Mechanisms of Fertilization in the Echinoderm
... death. Life if a successful fertilization occurs, since the resultant sperm-egg interaction will initiate the programmed development of a new individual. Death in the absence of such interaction, since the unfertilized egg will soon degenerate. For studies of fertilization, the gametes of echinoderm ...
... death. Life if a successful fertilization occurs, since the resultant sperm-egg interaction will initiate the programmed development of a new individual. Death in the absence of such interaction, since the unfertilized egg will soon degenerate. For studies of fertilization, the gametes of echinoderm ...
Effect of salinity on growth of juvenile Yarra pygmy perch
... drought) can lead to increasing selection pressure towards a particular genotype, which is able to withstand the current environmental condition. However since no individual genotype can be superior to all conditions, the remaining population is threatened when the environment either exceeds the spe ...
... drought) can lead to increasing selection pressure towards a particular genotype, which is able to withstand the current environmental condition. However since no individual genotype can be superior to all conditions, the remaining population is threatened when the environment either exceeds the spe ...
Influence of biotic and abiotic factors on the metazoan parasite
... the other hand, Percichthys trucha, the largest native piscivorous in these lakes, feeds on G. maculatus (Macchi et al. 1999; Ruzzante et al. 2011). Other piscivorous species in the fish assemblages are the native Galaxias platei and ...
... the other hand, Percichthys trucha, the largest native piscivorous in these lakes, feeds on G. maculatus (Macchi et al. 1999; Ruzzante et al. 2011). Other piscivorous species in the fish assemblages are the native Galaxias platei and ...
Miquela Research Poster Final
... many embryos in a short amount of time, the amount of time between fertilization and hatching is between three and six days, and their translucent bodies during development allow for observations that would be difficult to analyze in other species. Zebrafish contain many conserved genes that are sim ...
... many embryos in a short amount of time, the amount of time between fertilization and hatching is between three and six days, and their translucent bodies during development allow for observations that would be difficult to analyze in other species. Zebrafish contain many conserved genes that are sim ...
Dinoflagellates
... and c and fucoxanthin, as well as other accessory pigments – a few have chloroplasts with different pigmentation and structure, some with a nucleus – dinoflagellate chloroplasts may be remnants of diatoms ingested by a heterotrophic flagellate, which may have been the ancestor of modern dinoflagella ...
... and c and fucoxanthin, as well as other accessory pigments – a few have chloroplasts with different pigmentation and structure, some with a nucleus – dinoflagellate chloroplasts may be remnants of diatoms ingested by a heterotrophic flagellate, which may have been the ancestor of modern dinoflagella ...
PICES XV S6-3079 Oral A sardine growth model coupled with the
... individual-based models (IBMs) to simulate the life history of anchovy. Two attributes of every individual anchovy (or egg) include genotype and phenotype. Individual activities include consumption, metabolism, movement, spawning, hatching and death. We assume an individual’s genotype remain constan ...
... individual-based models (IBMs) to simulate the life history of anchovy. Two attributes of every individual anchovy (or egg) include genotype and phenotype. Individual activities include consumption, metabolism, movement, spawning, hatching and death. We assume an individual’s genotype remain constan ...
Reef fish of the Sugar Loaf Islands
... Act 1983 controlling commercial and recreational fishing in the area were gazetted in 1986. Further protection for the area from risks of oil prospecting and development was established with the passing of the Sugar Loaf Islands Marine Protected Area Act (SLIMPA Act) in 1991. The SLIMPA Act protects ...
... Act 1983 controlling commercial and recreational fishing in the area were gazetted in 1986. Further protection for the area from risks of oil prospecting and development was established with the passing of the Sugar Loaf Islands Marine Protected Area Act (SLIMPA Act) in 1991. The SLIMPA Act protects ...
bottom trawl discards in the gulf of suez, egypt. ices cm 2006/k:07
... multiple regression analysis. ...
... multiple regression analysis. ...
the water framework directive: using fish as a management tool
... consistency across all EU states, and this must be achieved through an intercalibration process. It appears to have been assumed that much more was known about fish communities than was actually known and that some form of ecological monitoring of this element was in place in European rivers, lakes ...
... consistency across all EU states, and this must be achieved through an intercalibration process. It appears to have been assumed that much more was known about fish communities than was actually known and that some form of ecological monitoring of this element was in place in European rivers, lakes ...
Fish reproduction
Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. There may also be a range of secondary organs that increase reproductive fitness. The genital papilla is a small, fleshy tube behind the anus in some fishes, from which the sperm or eggs are released; the sex of a fish often can be determined by the shape of its papilla.