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Title: Identification of the Spawning, Rearing, and Migratory Requirements of Fall Chinook Salmon in the Columbia River Basin, 1991 Annual Progress Report.

Technical Report ·
DOI:https://doi.org/10.2172/10172476· OSTI ID:10172476

This document is the 1991 annual progress report for selected studies of fall chinook salmon Oncorhynchus tshawytscha conducted by the US Fish and Wildlife Service. The decline in abundance of fall chinook salmon in the Snake River basin has become a growing concern. In April 1992, Snake River fall chinook salmon were listed as ``threatened`` under the Endangered Species Act. Effective recovery efforts for fall chinook salmon can not be developed until we increase our knowledge of the factors that are limiting the various life history stages. This study attempts to identify those physical and biological factors which influence spawning of fall chinook salmon in the free-flowing Snake River and their rearing and seaward migration through Columbia River basin reservoirs.

Research Organization:
US Fish and Wildlife Service
Sponsoring Organization:
US Bonneville Power Administration
DOE Contract Number:
AI79-91BP21708
OSTI ID:
10172476
Report Number(s):
DOE/BP-21708-1; ON: DE93018970
Resource Relation:
Other Information: PBD: Jul 1993
Country of Publication:
United States
Language:
English