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Filtering by: Decade 1930-1939 File Format application/pdf Non-Academic Affiliation Oregon Explorer

Local populations and migration in relation to the conservation of Pacific salmon in the Western States and Alaska

Creator:

Rich, Willis H. (Willis Horton), 1885-1972

Abstract:

1. A rational conservation program for such migratory fishes as the salmon must be based on a knowledge of (a) whether or not the species consists of local, self-perpetuating populations and (b) the nature and extent of the oceanic migrations. 2. The conservation of a species that is broken up...

Resource Type:

Technical Report
A study of commercial fishing operations on the Columbia river

Creator:

Oregon State Planning Board

Resource Type:

Technical Report