Assumptions
•Nutrient source: from across the northern flank;
•Some (most?) is taken up by phytoplankton in the front, and around the periphery;
•Primary production patterns are thus predictable (or are they?)
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Questions
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•  What are the patterns of upper trophic level   responces? •  What are the above relationships with fish spawning and production? •  What is the importance of winter?  (e.g., see data   from Pastuszak et al., 1981)