![DFO. 2006. Assessing Habitat Risks Associated with Bivalve](http://s1.studyres.com/store/data/004252277_1-e655fdd8b8fe5c2205bd0f03bd0ed57d-300x300.png)
DFO. 2006. Assessing Habitat Risks Associated with Bivalve
... 1. What are the positive and the negative effects (benthic and/or water column) of marine shellfish aquaculture on fish habitat? How do shellfish aquaculture effects on fish habitat differ from the natural effects of wild shellfish? What are the effects of the physical structures used in shellfish a ...
... 1. What are the positive and the negative effects (benthic and/or water column) of marine shellfish aquaculture on fish habitat? How do shellfish aquaculture effects on fish habitat differ from the natural effects of wild shellfish? What are the effects of the physical structures used in shellfish a ...
Temperature and substrates as interactive limiting factors for marine
... reduced in winter, growth and respiration may be increased experimentally either by raising the temperature or by increasing organic substrate concentrations, providing indirect evidence that the limitation is an effect of temperature on substrate uptake or assimilation. Experimental work with bacte ...
... reduced in winter, growth and respiration may be increased experimentally either by raising the temperature or by increasing organic substrate concentrations, providing indirect evidence that the limitation is an effect of temperature on substrate uptake or assimilation. Experimental work with bacte ...
Arctic sea surface height variability and change from satellite radar
... fluxes for the first time. Since changes in SSH reflect fluctuations in ocean volume, basin-wide estimates of Arctic SSH can add an important element to our current understanding of the Arctic hydrological cycle. There is evidence of a large seasonal cycle of Arctic SSH. Simply by considering the balanc ...
... fluxes for the first time. Since changes in SSH reflect fluctuations in ocean volume, basin-wide estimates of Arctic SSH can add an important element to our current understanding of the Arctic hydrological cycle. There is evidence of a large seasonal cycle of Arctic SSH. Simply by considering the balanc ...
Marine ecosystems and the role of marine protected areas as
... Similarly, mangrove ecosystems protect the coast from erosion, storm surges, and strong winds such as tsunamis in volcanic active regions. They maintain water quality by trapping silt from rivers and filtering out pollutants (buffer zone). Mangroves are rich habitats for animals and plants species s ...
... Similarly, mangrove ecosystems protect the coast from erosion, storm surges, and strong winds such as tsunamis in volcanic active regions. They maintain water quality by trapping silt from rivers and filtering out pollutants (buffer zone). Mangroves are rich habitats for animals and plants species s ...
Depth related amino acid uptake by Prochlorococcus cyanobacteria
... activities as well as inorganic nutrient acquisition, while less attention has been paid to its potential heterotrophic activity. Recently, it was shown that natural Procholorococcus populations could take up significant amounts of dissolved organic nitrogen in the form of amino acids [14]. The unexp ...
... activities as well as inorganic nutrient acquisition, while less attention has been paid to its potential heterotrophic activity. Recently, it was shown that natural Procholorococcus populations could take up significant amounts of dissolved organic nitrogen in the form of amino acids [14]. The unexp ...
Ecology of aerobic anoxygenic phototrophic bacteria - HAL-Insu
... or light intensity (Koblı́žek et al., 2003; Shiba, 1991) may influence AAP bacterial abundance. Increasing attention has been paid to AAP bacteria in marine environments exhibiting various trophic regimes. However, oligotrophic waters, which represent 60% of the surface of the oceans, have not been ...
... or light intensity (Koblı́žek et al., 2003; Shiba, 1991) may influence AAP bacterial abundance. Increasing attention has been paid to AAP bacteria in marine environments exhibiting various trophic regimes. However, oligotrophic waters, which represent 60% of the surface of the oceans, have not been ...
Printer-friendly Version
... occurs in the water column between 47 and 400 m below the sea-surface between stations C3 to C12 (Garfield et al., 1979; Codispoti and Packard, 1980; Table 2; Fig.5). Accordingly, the calculation of respiratory CO2 production in these waters from the ETS activity measurements has to be done differen ...
... occurs in the water column between 47 and 400 m below the sea-surface between stations C3 to C12 (Garfield et al., 1979; Codispoti and Packard, 1980; Table 2; Fig.5). Accordingly, the calculation of respiratory CO2 production in these waters from the ETS activity measurements has to be done differen ...
Changes in life-history traits in relation to climate change: bluefish
... The Catalan coast, located in the NW Mediterranean Sea, is characterized by a quite narrow continental shelf, which only widens clearly in the southernmost area around the Ebro River Delta and in the north between the main submarine canyons. The general surface circulation in the NW Mediterranean re ...
... The Catalan coast, located in the NW Mediterranean Sea, is characterized by a quite narrow continental shelf, which only widens clearly in the southernmost area around the Ebro River Delta and in the north between the main submarine canyons. The general surface circulation in the NW Mediterranean re ...
Sources of Marine Pollution on Nigerian Coastal Resources: An
... hazards of the pollutants. It has been reported that over 90% of the detergents which are the commonest in use today are biodegradable; many new pesticides such as the organo-phosphorous group break down readily in water, although not necessarily to simple inorganic salts [8]. Even where a substance ...
... hazards of the pollutants. It has been reported that over 90% of the detergents which are the commonest in use today are biodegradable; many new pesticides such as the organo-phosphorous group break down readily in water, although not necessarily to simple inorganic salts [8]. Even where a substance ...
Annual Report (2014) - Marine Research Institute
... initiative fund, since the middle of 2010. BASICS acted as a network of research across multiple disciplines at UCT, providing an umbrella for diverse projects on marine social and ecological systems and extending across different departments and faculties. Interdisciplinary collaboration was centra ...
... initiative fund, since the middle of 2010. BASICS acted as a network of research across multiple disciplines at UCT, providing an umbrella for diverse projects on marine social and ecological systems and extending across different departments and faculties. Interdisciplinary collaboration was centra ...
Marine and Coastal Biodiversity - International Coral Reef Initiative
... Understanding that regional progress has been made in analysing the impacts of underwater noise on marine and coastal biodiversity, such as under the Convention on Migratory Species, the Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR Convention), the Agreem ...
... Understanding that regional progress has been made in analysing the impacts of underwater noise on marine and coastal biodiversity, such as under the Convention on Migratory Species, the Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR Convention), the Agreem ...
Stationary Eddies and the Zonal Asymmetry of Net Precipitation and
... motion to the large-scale horizontal flow of the stationary eddies. Tools for understanding the response of stationary Rossby waves to large-scale forcing by heating and orography [e.g., Hoskins and Karoly 1981; see reviews by Held (1983) and Held et al. (2002)] can thus be applied directly to under ...
... motion to the large-scale horizontal flow of the stationary eddies. Tools for understanding the response of stationary Rossby waves to large-scale forcing by heating and orography [e.g., Hoskins and Karoly 1981; see reviews by Held (1983) and Held et al. (2002)] can thus be applied directly to under ...
Comparison of free-living, suspended particle, and aggregate
... reported for deeper waters on this or any Arctic shelf, or for aggregates descending into them, but elevated percentages of Archaea have been observed by FISH in nepheloid layers (particle-rich waters) advecting offshore at depth (Wells & Deming 2003, Wells et al. 2006). In the one Arctic study that ...
... reported for deeper waters on this or any Arctic shelf, or for aggregates descending into them, but elevated percentages of Archaea have been observed by FISH in nepheloid layers (particle-rich waters) advecting offshore at depth (Wells & Deming 2003, Wells et al. 2006). In the one Arctic study that ...
Deep-Sea Life
... methane keeps another potent greenhouse gas out of the atmosphere while trapping carbon in authigenic carbonates. Nutrient regeneration by all faunal size classes provides the elements necessary for fueling surface productivity and fisheries, and microbial processes detoxify a diversity of compounds ...
... methane keeps another potent greenhouse gas out of the atmosphere while trapping carbon in authigenic carbonates. Nutrient regeneration by all faunal size classes provides the elements necessary for fueling surface productivity and fisheries, and microbial processes detoxify a diversity of compounds ...
Mapping and classifying the seabed of West Greenland
... Our knowledge of the geographical range and ecological functioning of benthic habitat is still extremely limited due to the constraints of conventional seabed survey methods (Brown et al. 2011). Consequently, it’s a real challenge to manage resources adequately and protect important areas. In order ...
... Our knowledge of the geographical range and ecological functioning of benthic habitat is still extremely limited due to the constraints of conventional seabed survey methods (Brown et al. 2011). Consequently, it’s a real challenge to manage resources adequately and protect important areas. In order ...
Ecosystem Functioning and Biodiversity in the Deep Sea (EuroDEEP)
... Large-scale multidisciplinary studies are essential to understand how physical, geological and geochemical processes shape deep-sea habitats, control biological and biogeochemical processes, and determine their relationships with the global biosphere. Acquiring this knowledge is especially urgent in ...
... Large-scale multidisciplinary studies are essential to understand how physical, geological and geochemical processes shape deep-sea habitats, control biological and biogeochemical processes, and determine their relationships with the global biosphere. Acquiring this knowledge is especially urgent in ...
KeyNoteNew_Oct01_v9_sgb_edits
... the North Sea. Preliminary results show that the Sublittoral mud (EUNIS A5.3) is impacted most due to ...
... the North Sea. Preliminary results show that the Sublittoral mud (EUNIS A5.3) is impacted most due to ...
The Biology, Ecology and Vulnerability of Seamount Communities
... Distribution, geology and oceanography of seamounts Seamounts are undersea mountains that rise steeply from the seabed to waters below sea-level. Strictly, they are defined as having an elevation of more than 1000m and are of limited extent at the summit. However, even features of a few metres elev ...
... Distribution, geology and oceanography of seamounts Seamounts are undersea mountains that rise steeply from the seabed to waters below sea-level. Strictly, they are defined as having an elevation of more than 1000m and are of limited extent at the summit. However, even features of a few metres elev ...
Ocean Conservation Strategies and the Next Decade of Marine
... reflects two major geographies where the Foundation concentrates some of its philanthropy, both tropical and temperate marine and coastal ecosystems, and which possess a range of demographic, economic, social, and political attributes and systems. We also developed a narrative projecting the future ...
... reflects two major geographies where the Foundation concentrates some of its philanthropy, both tropical and temperate marine and coastal ecosystems, and which possess a range of demographic, economic, social, and political attributes and systems. We also developed a narrative projecting the future ...
Ocean Conservation Strategies and the Next Decade of Marine
... reflects two major geographies where the Foundation concentrates some of its philanthropy, both tropical and temperate marine and coastal ecosystems, and which possess a range of demographic, economic, social, and political attributes and systems. We also developed a narrative projecting the future ...
... reflects two major geographies where the Foundation concentrates some of its philanthropy, both tropical and temperate marine and coastal ecosystems, and which possess a range of demographic, economic, social, and political attributes and systems. We also developed a narrative projecting the future ...
Final Draft SAP 1202..
... region and is clearly linked to healthy marine environments, accounting for approximately 30-50% of GDP in island states such as Mauritius and Seychelles. Overall species composition is enormously rich, exceeding 11,000 species of plants and animals, 60-70% of which are found only in the Indo-Pacifi ...
... region and is clearly linked to healthy marine environments, accounting for approximately 30-50% of GDP in island states such as Mauritius and Seychelles. Overall species composition is enormously rich, exceeding 11,000 species of plants and animals, 60-70% of which are found only in the Indo-Pacifi ...
Exchange processes between the Gulf of Finland and
... revolution has been accompanied by a general decrease in oceanic pH. This main atmospheric signal is, however, largely modulated by ocean circulation and ecosystem processes. The pH in shelf seas is not only determined by the air-sea exchange and internal processes also present in the open ocean, bu ...
... revolution has been accompanied by a general decrease in oceanic pH. This main atmospheric signal is, however, largely modulated by ocean circulation and ecosystem processes. The pH in shelf seas is not only determined by the air-sea exchange and internal processes also present in the open ocean, bu ...
Ecology of aerobic anoxygenic phototrophic
... or light intensity (Koblı́žek et al., 2003; Shiba, 1991) may influence AAP bacterial abundance. Increasing attention has been paid to AAP bacteria in marine environments exhibiting various trophic regimes. However, oligotrophic waters, which represent 60% of the surface of the oceans, have not been ...
... or light intensity (Koblı́žek et al., 2003; Shiba, 1991) may influence AAP bacterial abundance. Increasing attention has been paid to AAP bacteria in marine environments exhibiting various trophic regimes. However, oligotrophic waters, which represent 60% of the surface of the oceans, have not been ...
WG3 Central and South Atlantic Region DRAFT
... expansion by commercial fishing (FAO, 2005; Freitas et al. 2008). Fish stocks are not well quantified in these areas, as it is still unknown whether 39-56% of the fish stocks have room for expansion or not (Freitas et al. 2008). At the same time, these sub-regions also experience various local-scale ...
... expansion by commercial fishing (FAO, 2005; Freitas et al. 2008). Fish stocks are not well quantified in these areas, as it is still unknown whether 39-56% of the fish stocks have room for expansion or not (Freitas et al. 2008). At the same time, these sub-regions also experience various local-scale ...
2016 - Plateforme Océan et Climat
... millennia. It is still unknown what polar ice caps will precisely contribute to sea-level rise in the next decades. However, some recent estimates suggest a mean sea-level rise of 60 cm to 1 meter by 2100, with significant variations from one region to another. In many low-lying coastal regions, sea ...
... millennia. It is still unknown what polar ice caps will precisely contribute to sea-level rise in the next decades. However, some recent estimates suggest a mean sea-level rise of 60 cm to 1 meter by 2100, with significant variations from one region to another. In many low-lying coastal regions, sea ...
Ecosystem of the North Pacific Subtropical Gyre
![](https://commons.wikimedia.org/wiki/Special:FilePath/North_Pacific_Subtropical_Convergence_Zone.jpg?width=300)
The North Pacific Subtropical Gyre (NPSG) is the largest contiguous ecosystem on earth. In oceanography, a subtropical gyre is a ring-like system of ocean currents rotating clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere caused by the Coriolis Effect. They generally form in large open ocean areas that lie between land masses.The NPSG is the largest of the gyres as well as the largest ecosystem on our planet. Like other subtropical gyres, it has a high-pressure zone in its center. Circulation around the center is clockwise around this high-pressure zone. Subtropical gyres make up 40% of the Earth’s surface and play critical roles in carbon fixation and nutrient cycling. This particular gyre covers most of the Pacific Ocean and comprises four prevailing ocean currents: the North Pacific Current to the north, the California Current to the east, the North Equatorial Current to the south, and the Kuroshio Current to the west. Its large size and distance from shore has caused the NPSG to be poorly sampled and thus poorly understood.The life processes in open-ocean ecosystems are a sink for the atmosphere’s increasing CO2. Gyres make up a large proportion, approximately 75%, of what we refer to as the open ocean, or the area of the ocean that does not consist of coastal areas. They are considered oligotrophic, or nutrient poor because they are far from terrestrial runoff. These regions were once thought to be homogenous and static habitats. However, there is increasing evidence that the NPSG exhibits substantial physical, chemical, and biological variability on a variety of time scales. Specifically, the NPSG exhibits seasonal and interannual variations in primary productivity (simply defined as the production of new plant material), which is important for the uptake of CO2.The NPSG is not only a sink for CO2 in the atmosphere, but also other pollutants. As a direct result of this circular pattern, gyres act like giant whirlpools and become traps for anthropogenic pollutants, such as marine debris. The NPSG has become recognized for the large quantity of plastic debris floating just below the surface in the center of the gyre. This area has recently received a lot of media attention and is commonly referred to as the Great Pacific Garbage Patch.