Secondary Productivity and the Fate of Organic Matter - Secondary Productivity refers to production...
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Secondary Productivity and the Fate Secondary Productivity and the Fate of Organic Matterof Organic Matter
-- Secondary ProductivitySecondary Productivity refers to production by refers to production by heterotrophicheterotrophic organisms organisms
-- This production comes about by consumption of organic material This production comes about by consumption of organic material
produced by either 1produced by either 1oo producers or other 2 producers or other 2oo producers. producers.
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North Sea Food WebNorth Sea Food Web
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Development of White BassDevelopment of White Bass
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Food Chain ConceptFood Chain Concept
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PhytoplanktonPhytoplankton
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ZooplanktonZooplankton
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Size ConsiderationsSize Considerations
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Example of Food Chain CalculationsExample of Food Chain Calculations
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Global Comparisons of Marine Food ChainsGlobal Comparisons of Marine Food Chains
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Ryther’s Estimates of World Fish ProductionRyther’s Estimates of World Fish Production
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Global Commercial Fish HarvestGlobal Commercial Fish Harvest
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Southern Ocean Food WebSouthern Ocean Food Web
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Krill as a keystone prey speciesKrill as a keystone prey species
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Antarctic Commercial FishingAntarctic Commercial Fishing
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Krill Distributions are PatchyKrill Distributions are Patchy
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Antarctic Peninsula: Krill Fishery Grounds; Antarctic Peninsula: Krill Fishery Grounds; Seal and Seabird ColoniesSeal and Seabird Colonies
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Chinstrap PenguinsChinstrap Penguins
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Krill Patchiness in 3-DimensionsKrill Patchiness in 3-Dimensions
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Major ConclusionsMajor Conclusions
-- Penguins correlated with presence of krill, but not necessarily Penguins correlated with presence of krill, but not necessarily
found in areas of highest krill abundance.found in areas of highest krill abundance.
-- Contrary to expectations, penguin surface distribution Contrary to expectations, penguin surface distribution
correlated better with krill distribution between 30 – 50mcorrelated better with krill distribution between 30 – 50m
than with krill distribution between surface – 30m. than with krill distribution between surface – 30m.