Redd Site Selection and Spawning Habitat Use by Fall Chinook Salmon, Hanford Reach, Columbia River : Final Report 1995 - 1998.
This report summarizes results of research activities conducted from 1995 through 1998 on identifying the spawning habitat requirements of fall chinook salmon (Oncorhynchus tshawytscha) in the Hanford Reach of the Columbia River. The project investigated whether traditional spawning habitat models could be improved in order to make better predictions of available habitat for fall chinook salmon in the Snake River. Results suggest models could be improved if they used spawning area-specific, rather than river-specific, spawning characteristics; incorporated hyporheic discharge measurements; and gave further consideration to the geomorphic features that are present in the unconstrained segments of large alluvial rivers. Ultimately the recovery of endangered fall chinook salmon will depend on how well we are able to recreate the characteristics once common in alluvial floodplains of large rivers. The results from this research can be used to better define the relationship between these physical habitat characteristics and fall chinook salmon spawning site selection, and provide more efficient use of limited recovery resources. This report is divided into four chapters which were presented in the author's doctoral dissertation which he completed through the Department of Fisheries and Wildlife at Oregon State University. Each of the chapters has been published in peer reviewedmore »
- Publication Date:
- OSTI Identifier:
- Report Number(s):
R&D Project: 1994-069-00; TRN: US200915%%313
- Resource Type:
- Technical Report
- Research Org:
- Bonneville Power Administration (BPA), Portland, OR (United States)
- Sponsoring Org:
- Country of Publication:
- United States
- 13 HYDRO ENERGY; COLUMBIA RIVER; FISHERIES; HABITAT; HYDRAULICS; RIVERS; SALMON; SITE SELECTION; VELOCITY
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