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The relationships between fluctuations in oceanographic conditions, forage fishes, predatory fishes, predator food habits, and juvenile salmonid marine survival off the Columbia River

Creator:

Emmett, Robert L.

Abstract:

Salmonid run sizes are strongly affected by their early marine stage. Fully understanding the life history of salmonids means understanding how they interact with their marine environment and with other fishes. Changes in the biological and physical environment off the Columbia River region affects the distribution and abundance of predatory...

Resource Type:

Dissertation

Full Text:

(Oncorhynchus kisutch) and Chinook salmon (O. tshawytscha), the dependent variable. Future research should