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Filtering by: Subject Chinook salmon -- Columbia River

An application of the control chart method to the analysis of fisheries data

Creator:

Rich, Willis H. (Willis Horton), 1885-1972 and Oregon. Fish Commission

Abstract:

In a paper now in press as a Bulletin of the U. S. Fish and Wildlife Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since 1920 and has stated that the decline is doubtless an indication that the runs of this species...

Resource Type:

Technical Report
Year-class regulation of mid-upper Columbia River spring Chinook salmon Oncorhynchus tshawytscha : the role of juvenile size, growth, and migratory behavior

Creator:

Tomaro, Londi M.

Abstract:

Early ocean residence is assumed to be a critical period for juvenile Pacific salmon Oncorhynchus spp. However, the specific mechanisms influencing growth and survival in the ocean have not been identified for most populations. Therefore, three hypotheses regarding the relationship between early marine residence and subsequent survival of mid-upper Columbia...

Resource Type:

Masters Thesis