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The relationships between predatory fish, forage fishes, and juvenile salmonid marine survival off the Columbia River: a simple trophic model analysis

Creator:

Emmett, Robert L. and Sampson, David B.

Abstract:

A trophic model that simulates interactions between a predatory fish (Pacific hake, Merluccius productus), forage fish, and juvenile salmon off the Columbia River was constructed to identify if trophic interactions could account for marine mortality of Columbia River juvenile salmon. The model estimates the number of juvenile salmon that are...

Resource Type:

Research Paper

Full Text:

water have been extensively studied, the causes of mortality in the marine environment remains one of