Consulta: subjectFacets:"Ecosystems" Registros recuperados: 170
... A digital land cover map of South America has been produced using remotely sensed satellite data acquired between 1995 and the year 2000. The mapping scale is defined by the 1 km spatial resolution of the map grid-cell. In order to realize the product, different sources of satellite data were used, ...
... A digital land cover map of South America has been produced using remotely sensed satellite data acquired between 1995 and the year 2000. The mapping scale is defined by the 1 km spatial resolution of the map grid-cell. In order to realize the product, different sources of satellite data were used, ...
Biofouling protection for marine environmental
... First we must understand the purpose, why there is a need to protect the sensor housing against biofouling. In the context of in situ measurements there are several reasons. The most obvious one is to get a clean instrument or at least an “easy to clean” instrument at the end of deployment. This cou ...
... First we must understand the purpose, why there is a need to protect the sensor housing against biofouling. In the context of in situ measurements there are several reasons. The most obvious one is to get a clean instrument or at least an “easy to clean” instrument at the end of deployment. This cou ...
Untitled
... The Research Center / Cluster of Excellence “The Ocean in the Earth System” (MARUM) has the overarching scientific goal to achieve a better understanding of key processes in the marine environment in order to provide information for sustainable use of the ocean. The research themes are: Ocean and Cl ...
... The Research Center / Cluster of Excellence “The Ocean in the Earth System” (MARUM) has the overarching scientific goal to achieve a better understanding of key processes in the marine environment in order to provide information for sustainable use of the ocean. The research themes are: Ocean and Cl ...
Modelling phytoplankton succession on the Bering
... winds keep all the water in the coastal domain fairly mixed throughout the year. Solar heating in the warmer seasons stratifies the middle domain waters into two strongly isolated layers, the upper being mixed by winds and the lower being mixed by tides. The outer domain waters have a more complex st ...
... winds keep all the water in the coastal domain fairly mixed throughout the year. Solar heating in the warmer seasons stratifies the middle domain waters into two strongly isolated layers, the upper being mixed by winds and the lower being mixed by tides. The outer domain waters have a more complex st ...
Classifying the Biodiversity of the Great Barrier Reef World Heritage
... signatory to the Convention on Biological Diversity (United Nations Environment Program 1994), Australia recognises the importance of conserving biodiversity. These facts, combined with Australia‘s geographic location and socio-economic climate, have given it a major role as a storehouse of diversit ...
... signatory to the Convention on Biological Diversity (United Nations Environment Program 1994), Australia recognises the importance of conserving biodiversity. These facts, combined with Australia‘s geographic location and socio-economic climate, have given it a major role as a storehouse of diversit ...
The distribution of reactive iron in northern Gulf of Alaska coastal
... Coastal waters in the northern Gulf of Alaska (GoA) are considered iron-rich and nitrate-poor, in contrast to the iron-poor, high-nitrate, low chlorophyll (HNLC) waters of the central GoA. The degree of mixing between these two regimes, enhanced by mesoscale eddies, is essential to the high producti ...
... Coastal waters in the northern Gulf of Alaska (GoA) are considered iron-rich and nitrate-poor, in contrast to the iron-poor, high-nitrate, low chlorophyll (HNLC) waters of the central GoA. The degree of mixing between these two regimes, enhanced by mesoscale eddies, is essential to the high producti ...
of Abu Dhabi Emirate, United Arab Emirates
... at a fast pace in association with a dramatic increase in the human population. Most heavy industries are located on the coast to make use of seawater for desalination or cooling purposes. Landfill and dredging are common, with shallow intertidal flats and embayments being favoured for construction. I ...
... at a fast pace in association with a dramatic increase in the human population. Most heavy industries are located on the coast to make use of seawater for desalination or cooling purposes. Landfill and dredging are common, with shallow intertidal flats and embayments being favoured for construction. I ...
Progress in Oceanography - The Marine Biological Association
... With the ability to collect samples monthly over large space scales come some associated biases. The restriction to commercial shipping routes means that large areas of the North Atlantic are not sampled (Fig. 2). Another spatial bias is that the same CPRs are usually used for the same route each mo ...
... With the ability to collect samples monthly over large space scales come some associated biases. The restriction to commercial shipping routes means that large areas of the North Atlantic are not sampled (Fig. 2). Another spatial bias is that the same CPRs are usually used for the same route each mo ...
Coastal and Marine Resources Management in Latin America and t
... this topic. The strategy for coastal and marine resources management (GN-1906-2) was favorably considered by the Bank’s Board of Directors on June 17, 1998 and is being published concurrently with this report (SDS publication No. ENV-129). This document was prepared by Michele H. Lemay, Environment ...
... this topic. The strategy for coastal and marine resources management (GN-1906-2) was favorably considered by the Bank’s Board of Directors on June 17, 1998 and is being published concurrently with this report (SDS publication No. ENV-129). This document was prepared by Michele H. Lemay, Environment ...
International Governance and Regulation of the Marine Arctic
... the Arctic, it has become apparent that a new multilateral agreement for the protection of the arctic marine environment is urgently needed to respond to this crisis. As climate change causes the ice to melt and new areas to open up, this unique environment is facing unprecedented changes and seriou ...
... the Arctic, it has become apparent that a new multilateral agreement for the protection of the arctic marine environment is urgently needed to respond to this crisis. As climate change causes the ice to melt and new areas to open up, this unique environment is facing unprecedented changes and seriou ...
Marine Science
... evident in these data, with the steepest catch-per-unit-effort decline occurring in the last 5 years. Silver eel escapement values were assessed on the other side of the Baltic, in Germany (Brämick et al., 2016). The authors concluded that stocking was necessary to reach current escapement targets ...
... evident in these data, with the steepest catch-per-unit-effort decline occurring in the last 5 years. Silver eel escapement values were assessed on the other side of the Baltic, in Germany (Brämick et al., 2016). The authors concluded that stocking was necessary to reach current escapement targets ...
PDF - UNEP
... environmental problems facing the world’s oceans and coastal areas. Seven out of 10 people today lived within 80 kilometers of the coast. Half of the world’s cities with a population in excess of one million were sited near tide-washed river mouths. As much as 80 per cent of all marine pollution ori ...
... environmental problems facing the world’s oceans and coastal areas. Seven out of 10 people today lived within 80 kilometers of the coast. Half of the world’s cities with a population in excess of one million were sited near tide-washed river mouths. As much as 80 per cent of all marine pollution ori ...
Florida Institute of Oceanography - USF System
... construction of a new research vessel. The vessel is being built in Tarpon Springs, Florida by Duckworth Steel Boats, and completion is expected by July 2017. The official keel laying ceremony was held on June 1, 2016. The vessel will be 78ft long, with a crew of 4 and berthing for 10 scientists. T ...
... construction of a new research vessel. The vessel is being built in Tarpon Springs, Florida by Duckworth Steel Boats, and completion is expected by July 2017. The official keel laying ceremony was held on June 1, 2016. The vessel will be 78ft long, with a crew of 4 and berthing for 10 scientists. T ...
CV - Aquatic Biogeochemistry at NC State University
... 26. Ziervogel K., McKay L., Rhodes B., Osburn C.L., Dickson-Brown J.L.*, Arnosti, C., and Teske, A. (2012), Microbial activities and dissolved organic matter dynamics in oil-contaminated surface seawater from the Deepwater Horizon oil spill site. PLoS ONE 7(4): e34816. doi:10.1371/journal.pone.00348 ...
... 26. Ziervogel K., McKay L., Rhodes B., Osburn C.L., Dickson-Brown J.L.*, Arnosti, C., and Teske, A. (2012), Microbial activities and dissolved organic matter dynamics in oil-contaminated surface seawater from the Deepwater Horizon oil spill site. PLoS ONE 7(4): e34816. doi:10.1371/journal.pone.00348 ...
Geochemical conditions in continental margin - E
... the surface layer above the area of reductive dissolution, re-oxidation of ferrous iron along with subsequent re-adsorption of phosphate do not match the content as detected from extraction results. Only by downward transport of phosphorus associated to iron (oxyhydr)oxides, most likely due to biotu ...
... the surface layer above the area of reductive dissolution, re-oxidation of ferrous iron along with subsequent re-adsorption of phosphate do not match the content as detected from extraction results. Only by downward transport of phosphorus associated to iron (oxyhydr)oxides, most likely due to biotu ...
Seamounts of the North-East Atlantic
... resulted in the identification of just 596 invertebrate species from all seamounts explored up to the late 1980’s. The enhanced currents that sweep around the seamounts and the exposed rock surfaces provide ideal conditions for suspension feeders, and it is these that often dominate the benthos. Col ...
... resulted in the identification of just 596 invertebrate species from all seamounts explored up to the late 1980’s. The enhanced currents that sweep around the seamounts and the exposed rock surfaces provide ideal conditions for suspension feeders, and it is these that often dominate the benthos. Col ...
Seamounts of the North-East Atlantic - Mar-Eco
... resulted in the identification of just 596 invertebrate species from all seamounts explored up to the late 1980’s. The enhanced currents that sweep around the seamounts and the exposed rock surfaces provide ideal conditions for suspension feeders, and it is these that often dominate the benthos. Col ...
... resulted in the identification of just 596 invertebrate species from all seamounts explored up to the late 1980’s. The enhanced currents that sweep around the seamounts and the exposed rock surfaces provide ideal conditions for suspension feeders, and it is these that often dominate the benthos. Col ...
A Systems Engineering Approach to Designing an Ocean and
... many times before and I just want to let you know that your kindness means more to me than I can say. ...
... many times before and I just want to let you know that your kindness means more to me than I can say. ...
Co-occurring Synechococcus ecotypes occupy four major
... in ecotypes that occupy different temperature and nutrient regimes (Johnson et al., 2006; Coleman and Chisholm, 2007; Martiny et al., 2009; Malmstrom et al., 2012). Such integration of information about the biogeographic and phylogenetic relatedness of ecotypes provides insight into evolutionary pro ...
... in ecotypes that occupy different temperature and nutrient regimes (Johnson et al., 2006; Coleman and Chisholm, 2007; Martiny et al., 2009; Malmstrom et al., 2012). Such integration of information about the biogeographic and phylogenetic relatedness of ecotypes provides insight into evolutionary pro ...
Mesopelagic N-2 fixation related to organic matter composition in
... N2 fixation is considered to fuel ~50% of ‘new’ primary production (sensu Dugdale et al.; [1]) in oligotrophic oceanic areas, and hence has an important role in modulating the ability of the oceans to sequester carbon dioxide [2]. The amount of fixed N in the oceans depends on the difference between ...
... N2 fixation is considered to fuel ~50% of ‘new’ primary production (sensu Dugdale et al.; [1]) in oligotrophic oceanic areas, and hence has an important role in modulating the ability of the oceans to sequester carbon dioxide [2]. The amount of fixed N in the oceans depends on the difference between ...
Microzooplankton Community Structure and Grazing Impact Along the Western Antarctic Peninsula
... and participants of the Palmer Antarctica Long-Term Ecological Research (PAL LTER) project, as well as the technical support of the captain and crew of the R/V Laurence M. Gould and the Raytheon Polar Services Group, both on the L.M. Gould and at Palmer Station. Your excitement and love for Antarcti ...
... and participants of the Palmer Antarctica Long-Term Ecological Research (PAL LTER) project, as well as the technical support of the captain and crew of the R/V Laurence M. Gould and the Raytheon Polar Services Group, both on the L.M. Gould and at Palmer Station. Your excitement and love for Antarcti ...
Aquatic primary production in a high-CO2 world
... Figure 3. Types of co-limitation. Darkness of the tiles indicates productivity (rate or yield) standardized by maximum potential yield. Axes are relative amounts of each resource. (A) Serial co-limitation is consistent with Liebig’s law of the minimum. The addition of the primary resource (black arr ...
... Figure 3. Types of co-limitation. Darkness of the tiles indicates productivity (rate or yield) standardized by maximum potential yield. Axes are relative amounts of each resource. (A) Serial co-limitation is consistent with Liebig’s law of the minimum. The addition of the primary resource (black arr ...
Ocean Conservancy Gulf of Mexico Gap Analysis
... accessing and leveraging existing monitoring activities included in the inventory, restoration managers will be able to track recovery of a target resource more ef ciently and cost-effectively, reducing duplication and enhancing coordination. The environmental impact of the BP oil disaster is signi ...
... accessing and leveraging existing monitoring activities included in the inventory, restoration managers will be able to track recovery of a target resource more ef ciently and cost-effectively, reducing duplication and enhancing coordination. The environmental impact of the BP oil disaster is signi ...
Cover page - Worm Lab - Dalhousie University
... Fishing, nutrient pollution, climate variation, and temperature have significant impacts on marine ecosystems. Due to their life history strategies gelatinous zooplankton (or ‘jellyfish’) may benefit from all four factors, as they likely thrive in nutrient-rich warm waters with reduced fish predator ...
... Fishing, nutrient pollution, climate variation, and temperature have significant impacts on marine ecosystems. Due to their life history strategies gelatinous zooplankton (or ‘jellyfish’) may benefit from all four factors, as they likely thrive in nutrient-rich warm waters with reduced fish predator ...
Full text PDF - Geochemical Perspectives
... ABOUT THE COVER Sediment-laden iceberg from Antarctica showing bands of reddish, iron-rich subglacial debris. Photo credit: Øyvind Tangen ...
... ABOUT THE COVER Sediment-laden iceberg from Antarctica showing bands of reddish, iron-rich subglacial debris. Photo credit: Øyvind Tangen ...
Marine pollution
Marine pollution occurs when harmful, or potentially harmful, effects result from the entry into the ocean of chemicals, particles, industrial, agricultural and residential waste, noise, or the spread of invasive organisms. Most sources of marine pollution are land based. The pollution often comes from nonpoint sources such as agricultural runoff, wind-blown debris and dust. Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algae growth.Many potentially toxic chemicals adhere to tiny particles which are then taken up by plankton and benthos animals, most of which are either deposit or filter feeders. In this way, the toxins are concentrated upward within ocean food chains. Many particles combine chemically in a manner highly depletive of oxygen, causing estuaries to become anoxic.When pesticides are incorporated into the marine ecosystem, they quickly become absorbed into marine food webs. Once in the food webs, these pesticides can cause mutations, as well as diseases, which can be harmful to humans as well as the entire food web.Toxic metals can also be introduced into marine food webs. These can cause a change to tissue matter, biochemistry, behaviour, reproduction, and suppress growth in marine life. Also, many animal feeds have a high fish meal or fish hydrolysate content. In this way, marine toxins can be transferred to land animals, and appear later in meat and dairy products.