Density-dependent migration in an Amphiura filiformis (Amphiuridae
... sea water system as above. To cancel out any current influences, brittle stars were added downstream of the empty half in one aquarium and upstream in the other. Activity on the surface was continuously recorded by video (5 images S-') in infrared radiation (IR) light in constant darkness for 4 wk. ...
... sea water system as above. To cancel out any current influences, brittle stars were added downstream of the empty half in one aquarium and upstream in the other. Activity on the surface was continuously recorded by video (5 images S-') in infrared radiation (IR) light in constant darkness for 4 wk. ...
State of the Environment | South Australia | 2013
... The large number of sheltered, sandy embayments in the Eyre bioregion—including Baird, Venus, Waterloo, Sceale, Coffin, Proper, Boston, Louth and Peake bays off Eyre Peninsula, and D’Estrees Bay at Kangaroo Island—boast extensive areas of seagrass meadows, which are estimated to cover an area of 56 ...
... The large number of sheltered, sandy embayments in the Eyre bioregion—including Baird, Venus, Waterloo, Sceale, Coffin, Proper, Boston, Louth and Peake bays off Eyre Peninsula, and D’Estrees Bay at Kangaroo Island—boast extensive areas of seagrass meadows, which are estimated to cover an area of 56 ...
3. deep-sea ecosystems: pristine biodiversity reservoir and
... the continental slope, between 3,000 and 6,000 m depth. Abyssal plains are covered by a thick layer of fine sediment that can reach thousands of metres in thickness, resulting in the popular picture of a flat, monotonous deep-sea bed. The main characteristics of water masses at abyssal plains are: l ...
... the continental slope, between 3,000 and 6,000 m depth. Abyssal plains are covered by a thick layer of fine sediment that can reach thousands of metres in thickness, resulting in the popular picture of a flat, monotonous deep-sea bed. The main characteristics of water masses at abyssal plains are: l ...
Marine geochemical data assimilation in an efficient Earth System
... Understanding how atmospheric CO2 is regulated thus necessarily requires feedbacks between CO2 and climate to be taken into account. Coupled GCM ocean-atmosphere plus carbon cycle models (e.g., “HadCM3LC”; Cox et al., 2000) are important tools for assessing climate change and associated feedbacks ov ...
... Understanding how atmospheric CO2 is regulated thus necessarily requires feedbacks between CO2 and climate to be taken into account. Coupled GCM ocean-atmosphere plus carbon cycle models (e.g., “HadCM3LC”; Cox et al., 2000) are important tools for assessing climate change and associated feedbacks ov ...
Chapter 4 Carbon and the Molecular Diversity of Life
... chapter lends itself to questions that emphasize recall and application; and many such questions are presented. But other topics in this chapter require synthesis and interpretation, as well as visualization of three-dimensional arrangements of atoms, and so we have added several questions that will ...
... chapter lends itself to questions that emphasize recall and application; and many such questions are presented. But other topics in this chapter require synthesis and interpretation, as well as visualization of three-dimensional arrangements of atoms, and so we have added several questions that will ...
Rationale: Atmospheric carbon dioxide concentrations have
... pH can now be measured to almost the degree of precision required for this work using a flowing liquid-junction, electrode-cell system (developed at PML for the EA) in an underway system to provide high resolution data . This system has a precision of typically ~0.005 pH and a quoted accuracy of 0.0 ...
... pH can now be measured to almost the degree of precision required for this work using a flowing liquid-junction, electrode-cell system (developed at PML for the EA) in an underway system to provide high resolution data . This system has a precision of typically ~0.005 pH and a quoted accuracy of 0.0 ...
David BARBER - 174460
... the project fills a regulatory need to understand its influence on Hudson Bay, and to collect baseline data prior to building additional generating capacity on the Nelson River. For other industries, such as shipping and tourism, an improved understanding of the future of Hudson Bay will help with s ...
... the project fills a regulatory need to understand its influence on Hudson Bay, and to collect baseline data prior to building additional generating capacity on the Nelson River. For other industries, such as shipping and tourism, an improved understanding of the future of Hudson Bay will help with s ...
In situ measurements of thermal diffusivity in sediments of the
... margin has been described at considerable length in the literature (e.g. Schmalzle et al., 2014; McCrory et al., 2014 and references within), as have the sediment types and physical properties for the alternating layers of pelagic clays and sandy silt turbidites on the Washington margin (see Davis a ...
... margin has been described at considerable length in the literature (e.g. Schmalzle et al., 2014; McCrory et al., 2014 and references within), as have the sediment types and physical properties for the alternating layers of pelagic clays and sandy silt turbidites on the Washington margin (see Davis a ...
IBDIOCC - Scientific Committee on Oceanic Research
... between temperature and carbonate saturation and multiple stressor impact involving carbonate saturation and deoxygenation and temperature. Motivation behind the goals: We submitted a proposal to SCOR for establishing a WG for combing Ocean Acidification (OA) and Cobalt Mining (CM) impacts on seamou ...
... between temperature and carbonate saturation and multiple stressor impact involving carbonate saturation and deoxygenation and temperature. Motivation behind the goals: We submitted a proposal to SCOR for establishing a WG for combing Ocean Acidification (OA) and Cobalt Mining (CM) impacts on seamou ...
Regulation of atmospheric CO2 by deep
... 4 and ALK in the deep ocean are insufficient constraints on the fluxes of POC and CaCO3 to the ocean floor, or that a general bias exists toward high CaCO3 rain rates and/or low POC fluxes in our representation of marine carbon cycling. [14] An additional potential source of bias in the model simula ...
... 4 and ALK in the deep ocean are insufficient constraints on the fluxes of POC and CaCO3 to the ocean floor, or that a general bias exists toward high CaCO3 rain rates and/or low POC fluxes in our representation of marine carbon cycling. [14] An additional potential source of bias in the model simula ...
A Benthic-optimised Marine Environment Classification
... Environmental predictors (Table 2), chosen for their functional relevance, were derived for all sample sites by overlay onto gridded data layers at a resolution of 1 km, stored in a GIS. Depth was one of the main predictors used, but in conceptual terms it is generally recognised as functioning as a ...
... Environmental predictors (Table 2), chosen for their functional relevance, were derived for all sample sites by overlay onto gridded data layers at a resolution of 1 km, stored in a GIS. Depth was one of the main predictors used, but in conceptual terms it is generally recognised as functioning as a ...
Energy budget and ecological role of mangrove epibenthos in the
... crabs through consumption or burial can range between 28 and 79% of annual leaf-litter fall in low and high intertidal mangroves respectively, thus considerably lowering export of organic material to coastal waters (Robertson & Daniel 1989, Robertson 1986, 1991). By shredding and mastication of the ...
... crabs through consumption or burial can range between 28 and 79% of annual leaf-litter fall in low and high intertidal mangroves respectively, thus considerably lowering export of organic material to coastal waters (Robertson & Daniel 1989, Robertson 1986, 1991). By shredding and mastication of the ...
Hydraulic piston coring of late Neogene and
... (Site 502, 4 holes) and in the eastern equatorial Pacific (Site 503, 2 holes). The sediment of Site 502 is primarily forambearing nanno marl which accumulated at about 3 to 4 cm/thousand yr. The bottom of Site 502 (228.7 m) is ~ 8 m.y. old. The sediment of Site 503 is primarily siliceous calcareous ...
... (Site 502, 4 holes) and in the eastern equatorial Pacific (Site 503, 2 holes). The sediment of Site 502 is primarily forambearing nanno marl which accumulated at about 3 to 4 cm/thousand yr. The bottom of Site 502 (228.7 m) is ~ 8 m.y. old. The sediment of Site 503 is primarily siliceous calcareous ...
Trophic Ecology: Bottom-Up and Top
... decomposer food webs Bottom-up forces in decomposer food webs Decomposers, primarily bacteria and fungi, but also detritivorous invertebrates and vertebrates, consume dead organic matter to obtain energy, and in the process of decomposition, break down macromolecules into smaller ones and excrete nu ...
... decomposer food webs Bottom-up forces in decomposer food webs Decomposers, primarily bacteria and fungi, but also detritivorous invertebrates and vertebrates, consume dead organic matter to obtain energy, and in the process of decomposition, break down macromolecules into smaller ones and excrete nu ...
Chapter 16: The Marine Environment
... benthic zone at nearly all depths. For the most part, the middle depths of the ocean below the photic zone are empty of life, except for the marine organisms that move through the oceanic zone on their way to feeding or mating grounds. The most productive ecosystems in the ocean, coral reefs, are lo ...
... benthic zone at nearly all depths. For the most part, the middle depths of the ocean below the photic zone are empty of life, except for the marine organisms that move through the oceanic zone on their way to feeding or mating grounds. The most productive ecosystems in the ocean, coral reefs, are lo ...
Summer School on Summer School on "Functioning and Evolution
... students from various countries. The high educational level of all the candidates made decisions very hard and challenging. However, all members of the Organising Committee have seen it as very promising development for the future of our Seas, as fine, talented, young scientists step forward from Eu ...
... students from various countries. The high educational level of all the candidates made decisions very hard and challenging. However, all members of the Organising Committee have seen it as very promising development for the future of our Seas, as fine, talented, young scientists step forward from Eu ...
The High Seas and Us
... Increasingly, industrial uses of the ocean and overuse of living resources threaten the ecological health of the ocean ecosystems and the benefits they produce. There is irrefutable evidence that both the physical and biological parts of the ocean play key roles in atmospheric and thermal regulation ...
... Increasingly, industrial uses of the ocean and overuse of living resources threaten the ecological health of the ocean ecosystems and the benefits they produce. There is irrefutable evidence that both the physical and biological parts of the ocean play key roles in atmospheric and thermal regulation ...
1 Carbon and Energy in Ecosystems Diagnostic Question
... “Gramma dies, is buried, decomposers consume her, they uptake C, then expel carbon as respired CO2 or as waste. The C is then taken in by plants as CO2 etc.. A cute little bunny is munching on the plant when a coyote prances, eating the bunny. Through metabolism the C moves into the coyote’s blood s ...
... “Gramma dies, is buried, decomposers consume her, they uptake C, then expel carbon as respired CO2 or as waste. The C is then taken in by plants as CO2 etc.. A cute little bunny is munching on the plant when a coyote prances, eating the bunny. Through metabolism the C moves into the coyote’s blood s ...
Grandma Johnson Diagnostic Question Cluster
... “Gramma dies, is buried, decomposers consume her, they uptake C, then expel carbon as respired CO2 or as waste. The C is then taken in by plants as CO2 etc.. A cute little bunny is munching on the plant when a coyote prances, eating the bunny. Through metabolism the C moves into the coyote’s blood s ...
... “Gramma dies, is buried, decomposers consume her, they uptake C, then expel carbon as respired CO2 or as waste. The C is then taken in by plants as CO2 etc.. A cute little bunny is munching on the plant when a coyote prances, eating the bunny. Through metabolism the C moves into the coyote’s blood s ...
Blue natural capital:towards a new economy
... destruction of ecosystems, territory loss, and climate change. Some of these threats are associated with tourism and recreation activities. In estuaries, major drivers of ecosystem change are urbanization, increased input of nutrients and pollutants, and decreased input of sediments due to upstream ...
... destruction of ecosystems, territory loss, and climate change. Some of these threats are associated with tourism and recreation activities. In estuaries, major drivers of ecosystem change are urbanization, increased input of nutrients and pollutants, and decreased input of sediments due to upstream ...
Preserving a balanced ocean: regulating climate change mitigation
... sinking of phytoplankton blooms into the deep ocean may reduce oxygen levels at these depths with adverse consequences for fisheries and other marine organisms. 20 The sustainability of this activity as a climate change mitigation option has also been called into question on the basis of the time fr ...
... sinking of phytoplankton blooms into the deep ocean may reduce oxygen levels at these depths with adverse consequences for fisheries and other marine organisms. 20 The sustainability of this activity as a climate change mitigation option has also been called into question on the basis of the time fr ...
Tentative List with Brief Descriptions
... composition of an unmown wooded disappears already within every 5-10 years. The area of wooed meadows in Estonia has decreased more that thousand times about 1000 ha of wooded meadows have survived up today, mainly concentrated in the western part of Estonia. Everywhere else in Europe the unique com ...
... composition of an unmown wooded disappears already within every 5-10 years. The area of wooed meadows in Estonia has decreased more that thousand times about 1000 ha of wooded meadows have survived up today, mainly concentrated in the western part of Estonia. Everywhere else in Europe the unique com ...
Ocean storage
... Dead phytoplankton and other biomass may be remineralized into inorganic carbon, nitrate, and ammonia by bacterial action, contributing to the total DIC and linking the biological pump with the solubility pump. Remaining dead biomass and decay products will be exported from the euphotic zone as part ...
... Dead phytoplankton and other biomass may be remineralized into inorganic carbon, nitrate, and ammonia by bacterial action, contributing to the total DIC and linking the biological pump with the solubility pump. Remaining dead biomass and decay products will be exported from the euphotic zone as part ...
Relationships between estuarine habitats and coastal
... characteristics to commercial fish catch, with particular focus on the role of mangroves, saltmarsh, seagrass, and mud- and sandflats as connected habitats driving observed fluctuations in fish catch. The connectivity of habitats can be a key factor in fish production by allowing exchange of energy ...
... characteristics to commercial fish catch, with particular focus on the role of mangroves, saltmarsh, seagrass, and mud- and sandflats as connected habitats driving observed fluctuations in fish catch. The connectivity of habitats can be a key factor in fish production by allowing exchange of energy ...