The annual cycle of surface CO2 and O2 in the Ross Sea
... southwestern Ross Sea along 76.5oS is presented in this study. From the surface data and sea ice concentrations annual sea-air fluxes of CO2 (-1.5±1.5 mol C m-2) and O2 (-3.7±3.0 mol C m-2) are calculated and confirmed by a mass balance approach which accounts for the total flux of CO2 (0.16±0.13) a ...
... southwestern Ross Sea along 76.5oS is presented in this study. From the surface data and sea ice concentrations annual sea-air fluxes of CO2 (-1.5±1.5 mol C m-2) and O2 (-3.7±3.0 mol C m-2) are calculated and confirmed by a mass balance approach which accounts for the total flux of CO2 (0.16±0.13) a ...
Circulation at the western boundary of the South and Equatorial
... Current. An exception to the net oceanic heat gain is the latitude domain 25S–40S, where the warm waters of the Brazil Current ow under a relatively cold air. This averaged situation, however, masks intense seasonal variations with crest-to-trough amplitudes of 250 W m2 2, 100 W m2 2, and 30 W m2 ...
... Current. An exception to the net oceanic heat gain is the latitude domain 25S–40S, where the warm waters of the Brazil Current ow under a relatively cold air. This averaged situation, however, masks intense seasonal variations with crest-to-trough amplitudes of 250 W m2 2, 100 W m2 2, and 30 W m2 ...
Relative Abundance and Diversity of Bacterial Methanotrophs at the
... Sitting at ∼5,000 m water depth on the Congo-Angola margin and ∼760 km offshore of the West African coast, the recent lobe complex of the Congo deep-sea fan receives large amounts of fluvial sediments (3–5% organic carbon). This organic-rich sedimentation area harbors habitats with chemosynthetic co ...
... Sitting at ∼5,000 m water depth on the Congo-Angola margin and ∼760 km offshore of the West African coast, the recent lobe complex of the Congo deep-sea fan receives large amounts of fluvial sediments (3–5% organic carbon). This organic-rich sedimentation area harbors habitats with chemosynthetic co ...
QUALITY INFORMATION DOCUMENT For Global Biogeochemical
... oxygen, carbon and the main nutrients controlling phytoplankton growth (nitrate, ammonium, phosphate, silicic acid and iron). The model distinguishes four plankton functional types based on size: two phytoplankton groups (small = nanophytoplankton and large = diatoms) and two zooplankton groups (sma ...
... oxygen, carbon and the main nutrients controlling phytoplankton growth (nitrate, ammonium, phosphate, silicic acid and iron). The model distinguishes four plankton functional types based on size: two phytoplankton groups (small = nanophytoplankton and large = diatoms) and two zooplankton groups (sma ...
Distribution of Surface Plastic Debris in the Eastern Pacific Ocean
... eddies and fronts in one numerical ocean model.24 Local winddriven turbulence has been shown to vertically distribute even buoyant debris to depths unsampled by the surface-towed net,28 introducing variability on short time and space scales. When observed plastic concentrations within the accumulati ...
... eddies and fronts in one numerical ocean model.24 Local winddriven turbulence has been shown to vertically distribute even buoyant debris to depths unsampled by the surface-towed net,28 introducing variability on short time and space scales. When observed plastic concentrations within the accumulati ...
Day 13 - Home Page
... - Canada is fourth-largest producer of farmed salmon in the world - Freshwater fish and shellfish (clams, oysters, ...
... - Canada is fourth-largest producer of farmed salmon in the world - Freshwater fish and shellfish (clams, oysters, ...
Tidal Energy and Large-Scale Fish Farming, Benefits
... offshore platforms or of wind-power plants from Tsunami waves and from high sea-waves caused by storms. In such a double-pipe structure the outer and the inner fences are connected and thus closed at the bottom. The construction is done in analogy to the Tsunami barrier construction. This annular st ...
... offshore platforms or of wind-power plants from Tsunami waves and from high sea-waves caused by storms. In such a double-pipe structure the outer and the inner fences are connected and thus closed at the bottom. The construction is done in analogy to the Tsunami barrier construction. This annular st ...
Contaminants in the arctic marine environment
... the combustion of fossil fuels but, due to the underlying natural cycle, it is often difficult to distinguish the anthropogenic contribution and its effect on the ecosystem. These naturally-occurring substances may enter the marine environment through weathering, forest fires, or biological processe ...
... the combustion of fossil fuels but, due to the underlying natural cycle, it is often difficult to distinguish the anthropogenic contribution and its effect on the ecosystem. These naturally-occurring substances may enter the marine environment through weathering, forest fires, or biological processe ...
PDF - compatibile with Acrobat 4.0
... Ewans & van der Vlugt (1999) discovered that the bimodality of the directional spectrum is also visible for the wave conditions occurring during tropical cyclones. Such sea states consist largely of a cyclone-generated swell component and a local wind sea. Following Kuik et al. (1988), they defined t ...
... Ewans & van der Vlugt (1999) discovered that the bimodality of the directional spectrum is also visible for the wave conditions occurring during tropical cyclones. Such sea states consist largely of a cyclone-generated swell component and a local wind sea. Following Kuik et al. (1988), they defined t ...
Nutrient gradients in the western North Atlantic Ocean
... analyses at the HOT site (Karl and Tien, 1992, 1997), and which we used in the SRP analyses reported here. The advantage of this method is that SRP is concentrated prior to the addition of the analytical reagents so that only the SRP signal is amplified and not the blank. The standard MAGIC protocol ...
... analyses at the HOT site (Karl and Tien, 1992, 1997), and which we used in the SRP analyses reported here. The advantage of this method is that SRP is concentrated prior to the addition of the analytical reagents so that only the SRP signal is amplified and not the blank. The standard MAGIC protocol ...
Scenarios and Drivers for Sustainable Growth from the Oceans, Seas
... and reaches hot magma and reacts with the surrounding rocks. Due to temperature rise, pressure increases until the hot fluid discharges through fractures (vents) between the tectonic plates. When the hot fluid reaches the cold sea water it precipitates over the sea-floor. The mineral and metal rich ...
... and reaches hot magma and reacts with the surrounding rocks. Due to temperature rise, pressure increases until the hot fluid discharges through fractures (vents) between the tectonic plates. When the hot fluid reaches the cold sea water it precipitates over the sea-floor. The mineral and metal rich ...
Ocean Science - International Science Center
... This surface layer is also called the sunlight zone and extends from the surface to 660 feet (200 meters). It is in this zone that most of the visible light exists. http://www.srh.noaa.gov/jetstream/ocean/layers_ocean.htm With the light comes heating from sun. This heating is responsible for wide ch ...
... This surface layer is also called the sunlight zone and extends from the surface to 660 feet (200 meters). It is in this zone that most of the visible light exists. http://www.srh.noaa.gov/jetstream/ocean/layers_ocean.htm With the light comes heating from sun. This heating is responsible for wide ch ...
How does the resuspension of the biofilm alter the functioning of the
... development of a microbial biofilm at the surface of the sediments at diurnal low tide. This biofilm is usually mainly composed of brown microalgae (diatoms) which constitute the microphytobenthos (Cariou-Le Gall and Blanchard, 1995) and prokaryotes, all of them linked by a matrix of extracellular pol ...
... development of a microbial biofilm at the surface of the sediments at diurnal low tide. This biofilm is usually mainly composed of brown microalgae (diatoms) which constitute the microphytobenthos (Cariou-Le Gall and Blanchard, 1995) and prokaryotes, all of them linked by a matrix of extracellular pol ...
the southern ocean observing system
... increase in sea level and strong regional trends linked to shifts in fronts of the ACC, though the sensitivity of ACC transport to winds is small. The average circumpolar extent of sea ice shows a small but significant increase during the satellite era (post-1978), due primarily to large increases i ...
... increase in sea level and strong regional trends linked to shifts in fronts of the ACC, though the sensitivity of ACC transport to winds is small. The average circumpolar extent of sea ice shows a small but significant increase during the satellite era (post-1978), due primarily to large increases i ...
The Southern Ocean Observing System
... increase in sea level and strong regional trends linked to shifts in fronts of the ACC, though the sensitivity of ACC transport to winds is small. The average circumpolar extent of sea ice shows a small but significant increase during the satellite era (post-1978), due primarily to large increases i ...
... increase in sea level and strong regional trends linked to shifts in fronts of the ACC, though the sensitivity of ACC transport to winds is small. The average circumpolar extent of sea ice shows a small but significant increase during the satellite era (post-1978), due primarily to large increases i ...
the Central Equatorial Pacific West of the East Pacific Rise
... the equatorial region the zone of divergence between the Pacific and Cocos plates was located west of the present East Pacific Rise crest for the period prior to approximately 10 million years BP. The most probable location for the old boundary is the Mathematicians Ridge and its southward extension ...
... the equatorial region the zone of divergence between the Pacific and Cocos plates was located west of the present East Pacific Rise crest for the period prior to approximately 10 million years BP. The most probable location for the old boundary is the Mathematicians Ridge and its southward extension ...
Modeling Larval Connectivity of Coral Reef Organisms in the Kenya
... among sample sites spanning 900 km along the coast. These studies do not address ecologically significant timescales of a few generations, and are in general concerned with large spatial scales (∼1000 s of km), therefore they cannot provide insights on population demography at temporal and spatial s ...
... among sample sites spanning 900 km along the coast. These studies do not address ecologically significant timescales of a few generations, and are in general concerned with large spatial scales (∼1000 s of km), therefore they cannot provide insights on population demography at temporal and spatial s ...
Major issues in the management of enclosed or semi
... Islands, in the north-east, to Trinidad and Tobago, off the Venezuelan coast, in the south-east. Islands in this chain include, moving in a generally southerly direction, Anguilla, St. Martin, Barbuda, St. Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat, Dominica, Martinique, Saint Luci ...
... Islands, in the north-east, to Trinidad and Tobago, off the Venezuelan coast, in the south-east. Islands in this chain include, moving in a generally southerly direction, Anguilla, St. Martin, Barbuda, St. Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat, Dominica, Martinique, Saint Luci ...
Quantity and bioavailability of sediment organic matter as signatures
... ABSTRACT: Tools used for assessing marine trophic status are generally based on water column characteristics, which, however, may provide unreliable classification of the benthic trophic status. Here, we provide evidence from the literature that quantity and bioavailability of sediment organic matte ...
... ABSTRACT: Tools used for assessing marine trophic status are generally based on water column characteristics, which, however, may provide unreliable classification of the benthic trophic status. Here, we provide evidence from the literature that quantity and bioavailability of sediment organic matte ...
the TRACES Science Plan (Nov 2009)
... offshore banks and seamounts they can only be reached with large sea-going research ships. This means that even the simplest questions about cold-water corals such as „What do they eat?‟ and „When do they reproduce?‟ need hugely expensive ships and sampling equipment. As well as producing a coherent ...
... offshore banks and seamounts they can only be reached with large sea-going research ships. This means that even the simplest questions about cold-water corals such as „What do they eat?‟ and „When do they reproduce?‟ need hugely expensive ships and sampling equipment. As well as producing a coherent ...
Chapter 2 Estimating virus production rates in aquatic systems
... In the late 1800s, the first reports of an ultramicroscopic virus named the tobacco mosaic virus, which infected the tobacco plant, was described by Dimitri Ivanowski (Ivanowski 1892; Iwanowski 1892), but his contributions were questioned since was unsure he had a new agent for infection. Martin Bei ...
... In the late 1800s, the first reports of an ultramicroscopic virus named the tobacco mosaic virus, which infected the tobacco plant, was described by Dimitri Ivanowski (Ivanowski 1892; Iwanowski 1892), but his contributions were questioned since was unsure he had a new agent for infection. Martin Bei ...
Marine habitats
The marine environment supplies many kinds of habitats that support marine life. Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean). A habitat is an ecological or environmental area inhabited by one or more living species.Marine habitats can be divided into coastal and open ocean habitats. Coastal habitats are found in the area that extends from as far as the tide comes in on the shoreline out to the edge of the continental shelf. Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area. Open ocean habitats are found in the deep ocean beyond the edge of the continental shelf.Alternatively, marine habitats can be divided into pelagic and demersal habitats. Pelagic habitats are found near the surface or in the open water column, away from the bottom of the ocean. Demersal habitats are near or on the bottom of the ocean. An organism living in a pelagic habitat is said to be a pelagic organism, as in pelagic fish. Similarly, an organism living in a demersal habitat is said to be a demersal organism, as in demersal fish. Pelagic habitats are intrinsically shifting and ephemeral, depending on what ocean currents are doing.Marine habitats can be modified by their inhabitants. Some marine organisms, like corals, kelp, mangroves and seagrasses, are ecosystem engineers which reshape the marine environment to the point where they create further habitat for other organisms.