Date post: | 15-Jan-2016 |
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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.
North Sea Food WebNorth Sea Food Web
Development of White BassDevelopment of White Bass
Food Chain ConceptFood Chain Concept
PhytoplanktonPhytoplankton
ZooplanktonZooplankton
Size ConsiderationsSize Considerations
Example of Food Chain CalculationsExample of Food Chain Calculations
Global Comparisons of Marine Food ChainsGlobal Comparisons of Marine Food Chains
Ryther’s Estimates of World Fish ProductionRyther’s Estimates of World Fish Production
Global Commercial Fish HarvestGlobal Commercial Fish Harvest
Southern Ocean Food WebSouthern Ocean Food Web
Krill as a keystone prey speciesKrill as a keystone prey species
Antarctic Commercial FishingAntarctic Commercial Fishing
Krill Distributions are PatchyKrill Distributions are Patchy
Antarctic Peninsula: Krill Fishery Grounds; Antarctic Peninsula: Krill Fishery Grounds; Seal and Seabird ColoniesSeal and Seabird Colonies
Chinstrap PenguinsChinstrap Penguins
Krill Patchiness in 3-DimensionsKrill Patchiness in 3-Dimensions
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.