Living Blue Planet Report - Sustain our seas
... WWF’s Living Planet Report, released every two years, is a leading science-based analysis on the health of our planet and the impact of human activity upon it. The Living Planet Report 2014 detailed alarming declines in biodiversity, showing species populations falling by half between 1970 and 2010. ...
... WWF’s Living Planet Report, released every two years, is a leading science-based analysis on the health of our planet and the impact of human activity upon it. The Living Planet Report 2014 detailed alarming declines in biodiversity, showing species populations falling by half between 1970 and 2010. ...
Living Blue Planet Report
... Sea cucumbers Sea cucumbers are distributed globally, and harvested and traded in more than 70 countries (Purcell et al., 2012). They play a vital role in the ecosystem, regulating water quality, turning over sediment, recycling nutrients, and as prey for commercial species such as crustaceans. They ...
... Sea cucumbers Sea cucumbers are distributed globally, and harvested and traded in more than 70 countries (Purcell et al., 2012). They play a vital role in the ecosystem, regulating water quality, turning over sediment, recycling nutrients, and as prey for commercial species such as crustaceans. They ...
Continental Margins 14.2 Ocean Floor Features
... The ocean basin floor is the area of the deep-ocean floor between the continental margin and the oceanic ridge. Deep-Ocean Trenches • Trenches form at the sites of plate convergence where one moving plate descends beneath another and plunges back into the mantle. ...
... The ocean basin floor is the area of the deep-ocean floor between the continental margin and the oceanic ridge. Deep-Ocean Trenches • Trenches form at the sites of plate convergence where one moving plate descends beneath another and plunges back into the mantle. ...
Oxygen and organic carbon fluxes in sediments of the
... calculated from sediment mass accumulation rate and the organic carbon content measured at the top of the sediment. The proportion of buried POC relative to total exported POC ranged at the most between 50% and 10%, depending on station location. Therefore, for a narrow geographic area like the Bay ...
... calculated from sediment mass accumulation rate and the organic carbon content measured at the top of the sediment. The proportion of buried POC relative to total exported POC ranged at the most between 50% and 10%, depending on station location. Therefore, for a narrow geographic area like the Bay ...
PROPOSITIONS DE THEMES DE MEMOIRES DE FIN D
... Objective : The swimming crab Thalamita crenata is an ambush predator that occupies mud flats and ancient coral reef flats in front of Kenyan mangrove forests. They have a home burrow that serves as refuge when water level is too high or too low, as a feeding or mating place and as a place where the ...
... Objective : The swimming crab Thalamita crenata is an ambush predator that occupies mud flats and ancient coral reef flats in front of Kenyan mangrove forests. They have a home burrow that serves as refuge when water level is too high or too low, as a feeding or mating place and as a place where the ...
Mesozooplankton in the Arctic Ocean in summer
... than has previously been reported for the Arctic Ocean, and it reached a maximum at ca. 873N in the Amundsen Basin. The lowest values were recorded in the Chukchi Sea and Nansen Basin, where ice cover was lower (50}80%) than in the central Arctic Ocean. In the deeper strata (200}500 m) of the Canadi ...
... than has previously been reported for the Arctic Ocean, and it reached a maximum at ca. 873N in the Amundsen Basin. The lowest values were recorded in the Chukchi Sea and Nansen Basin, where ice cover was lower (50}80%) than in the central Arctic Ocean. In the deeper strata (200}500 m) of the Canadi ...
HORIZONS Modelling emergent trophic strategies in plankton
... and Bricaud, 1981), clearance rates of phagotrophy (Kiørboe, 2011) and preferred predator-prey size ratios (Hansen et al., 1994). Further, size affects losses through size-dependent mortality risk (Hirst and Kiørboe, 2002) and size-dependent sinking rates (Alldredge and Gotschalk, 1989). Such size-b ...
... and Bricaud, 1981), clearance rates of phagotrophy (Kiørboe, 2011) and preferred predator-prey size ratios (Hansen et al., 1994). Further, size affects losses through size-dependent mortality risk (Hirst and Kiørboe, 2002) and size-dependent sinking rates (Alldredge and Gotschalk, 1989). Such size-b ...
Continental erosion and the Cenozoic rise of marine diatoms
... (tens of thousands of years) (23), our analysis of changing silicate weathering fluxes and their effect on diatom diversification encompasses time scales of million years. On these time scales, the ocean system can be treated as steady state with respect to silica, and therefore, unless the ancient ...
... (tens of thousands of years) (23), our analysis of changing silicate weathering fluxes and their effect on diatom diversification encompasses time scales of million years. On these time scales, the ocean system can be treated as steady state with respect to silica, and therefore, unless the ancient ...
Mangrove Reference Database and Herbarium
... centre became an integral part of international networks such as UNESCO’s IOC Project Office for International Ocean ographic Data and Information Exchange (IODE), OBIS, ESF Marine Board, MARS, EMODNET and other European networks. VMDC hosts the Mangrove Reference Database on its server and develop ...
... centre became an integral part of international networks such as UNESCO’s IOC Project Office for International Ocean ographic Data and Information Exchange (IODE), OBIS, ESF Marine Board, MARS, EMODNET and other European networks. VMDC hosts the Mangrove Reference Database on its server and develop ...
(PDF)
... 0.8 – 8 g/g) above detrital background levels (referred as particulate non-lithogenic U) is found in marine particulate matter (Miyake et al., 1970; Anderson, 1982; Knauss and Ku, 1983; Hirose and Sugimura, 1991). Anderson (1982) demonstrated that particulate non-lithogenic U (PNU) is completely re ...
... 0.8 – 8 g/g) above detrital background levels (referred as particulate non-lithogenic U) is found in marine particulate matter (Miyake et al., 1970; Anderson, 1982; Knauss and Ku, 1983; Hirose and Sugimura, 1991). Anderson (1982) demonstrated that particulate non-lithogenic U (PNU) is completely re ...
Organic-rich Facies and Hydrocarbon Source Rocks
... oxygen minimum is rarely sufficiently intense to give anoxic conditions and enhance organic matter preservation. Oxygen contents rise below the oxigen minimum zone because deep ocean water today is supplied by cold, oxygen-rich polar waters. The oxygen content of ocean bottom-water therefore decreas ...
... oxygen minimum is rarely sufficiently intense to give anoxic conditions and enhance organic matter preservation. Oxygen contents rise below the oxigen minimum zone because deep ocean water today is supplied by cold, oxygen-rich polar waters. The oxygen content of ocean bottom-water therefore decreas ...
Physical factors influencing active emergence of meiofauna from
... water column (either actively or by the help of currents; Armonies 1988b) may improve the physical environment without much energy expenditure. Laboratory studies of oxygen, temperature, salinity and light exposure effects on the meiobenthic emergence pattern are the subject of this paper. It has al ...
... water column (either actively or by the help of currents; Armonies 1988b) may improve the physical environment without much energy expenditure. Laboratory studies of oxygen, temperature, salinity and light exposure effects on the meiobenthic emergence pattern are the subject of this paper. It has al ...
Carbonate Rocks - Cal State LA
... Most carbonate sediments generated in photic zone Unlike sandstones, most carbonate grains formed in environment in which they are deposited Detrital grains in sandstones usually derived from outside the environment in which they were deposited ...
... Most carbonate sediments generated in photic zone Unlike sandstones, most carbonate grains formed in environment in which they are deposited Detrital grains in sandstones usually derived from outside the environment in which they were deposited ...
IOC report for SCOR, 2016 Ocean acidification Ocean acidification
... (CAFF)) with a view to jointly address non‐native species issues in the Arctic; and (ii) to consider the following three questions as material for development of demonstration advice: •How will climate change impact the risk of introduction, survival and/or esta ...
... (CAFF)) with a view to jointly address non‐native species issues in the Arctic; and (ii) to consider the following three questions as material for development of demonstration advice: •How will climate change impact the risk of introduction, survival and/or esta ...
Rate Processes and Fluxes of Marine Biogeochemical Cycles
... Current or planned space-based assets in low-earth polar orbit (LEO) are inadequate for constraining physical, ecological and biogeochemical fluxes and rates as well as the variability in biogeochemical stocks within the marine environment at regional to global scales. This is a key issue for assess ...
... Current or planned space-based assets in low-earth polar orbit (LEO) are inadequate for constraining physical, ecological and biogeochemical fluxes and rates as well as the variability in biogeochemical stocks within the marine environment at regional to global scales. This is a key issue for assess ...
Climate
... The climate of Northern Alaska can be divided onto three different zones: Arctic Coastal, Arctic Inland and Arctic Foothills. Extending 20 km from the ocean, the 1002 area falls under the category of Arctic Coastal, which is characterized by cool summers and relatively warm winters, due to the impac ...
... The climate of Northern Alaska can be divided onto three different zones: Arctic Coastal, Arctic Inland and Arctic Foothills. Extending 20 km from the ocean, the 1002 area falls under the category of Arctic Coastal, which is characterized by cool summers and relatively warm winters, due to the impac ...
Evidence for strong sediment redistribution by bottom currents along
... Southern Ocean. However, this method has not been used to understand the lateral sediment input at the scale of the ocean basin. Consequently, little information is available about the spatially current-controlled sediment redistribution, how redistribution varies during glacial}interglacial periods ...
... Southern Ocean. However, this method has not been used to understand the lateral sediment input at the scale of the ocean basin. Consequently, little information is available about the spatially current-controlled sediment redistribution, how redistribution varies during glacial}interglacial periods ...
National Oceanic and Atmospheric Administration
... species in Korean waters during the past 30 years in relation to climate change Long Term Changes and biomass yields in the Yellow Sea Large Marine Ecosystem and in the East China Sea LME Socioeconomic Benefits of the LME Approach in the Gulf of California and Pacific Central American LMEs Optimizin ...
... species in Korean waters during the past 30 years in relation to climate change Long Term Changes and biomass yields in the Yellow Sea Large Marine Ecosystem and in the East China Sea LME Socioeconomic Benefits of the LME Approach in the Gulf of California and Pacific Central American LMEs Optimizin ...
IOC/SCOR Workshop on Global Ocean Ecosystem Dynamics
... (IGBP)program is primarily concerned with averagechanges in the flux ofbiogenic elements (particularly carbon) and the role of ocean primary production in the exchange of carbon dioxide between the ocean and atmosphere especially in the context of global warming. In particular JGOFS addresses the ro ...
... (IGBP)program is primarily concerned with averagechanges in the flux ofbiogenic elements (particularly carbon) and the role of ocean primary production in the exchange of carbon dioxide between the ocean and atmosphere especially in the context of global warming. In particular JGOFS addresses the ro ...
Influence of bacterial uptake on deep
... bacterial production has also been shown to correlate with both temperature and chlorophyll in the surface layers of the global ocean [Rivkin and Legendre, 2001]. From these experiments we also determine a yield factor of w = 0.33 which lies within the range of earlier reported values for the marine ...
... bacterial production has also been shown to correlate with both temperature and chlorophyll in the surface layers of the global ocean [Rivkin and Legendre, 2001]. From these experiments we also determine a yield factor of w = 0.33 which lies within the range of earlier reported values for the marine ...
Growth rates and production of heterotrophic bacteria and
... bacterial production amounts to about 20% of primary production in the oceans’ surface waters. Cho and Azam (1990), however, have estimated that in oligotrophic marine waters, heterotrophic bacterial biomass is 2-3 times greater than that of phytoplankton. These two estimates are incompatible unless ...
... bacterial production amounts to about 20% of primary production in the oceans’ surface waters. Cho and Azam (1990), however, have estimated that in oligotrophic marine waters, heterotrophic bacterial biomass is 2-3 times greater than that of phytoplankton. These two estimates are incompatible unless ...
Using Space-Age Technologies to Monitor the Coast`s Health
... to the success of Delaware Sea Grant’s Coastal Ecosystem Health Project. Under the leadership of Professor Biliana Cicin-Sain, co-director of the UD Center for the Study of Marine Policy, DNREC hosted this workshop in a Managers Advisory Committee was January, co-sponsored by Delaware formed to prov ...
... to the success of Delaware Sea Grant’s Coastal Ecosystem Health Project. Under the leadership of Professor Biliana Cicin-Sain, co-director of the UD Center for the Study of Marine Policy, DNREC hosted this workshop in a Managers Advisory Committee was January, co-sponsored by Delaware formed to prov ...
why the world is green, the waters are blue and food webs in small
... regions of different productivity. Aquatic systems, especially those of plankton, tend to have much less plant biomass than terrestrial systems, and generally a much higher proportion of the living plant biomass is consumed by herbivores. Thus open-water aquatic systems appear transparent blue or gr ...
... regions of different productivity. Aquatic systems, especially those of plankton, tend to have much less plant biomass than terrestrial systems, and generally a much higher proportion of the living plant biomass is consumed by herbivores. Thus open-water aquatic systems appear transparent blue or gr ...
Chapter 13: Biological productivity and energy transfer
... Pfiesteria in temperate coastal waters Ciguatera (from) Gambierdiscus toxicus ...
... Pfiesteria in temperate coastal waters Ciguatera (from) Gambierdiscus toxicus ...