A Review of Literature Related to Movements of Adult Salmon and Steelhead Past Dams and Through Reservoirs in the Lower Snake River.
Abstract
A synthesis of published and unpublished literature on the upstream migration of adult salmon and steel head Oncorhynchus mykiss, with particular reference to passage through reservoirs and over dams, was prepared as part of an evaluation of fish passage through the lower Snake River. Most of the information on adult migrations in the Snake and Columbia rivers was collected on chinook salmon 0. tshawytscha and steel head. The amount of flow, temperature and turbidity of the water, and partial barriers are natural factors that affect the rate of migration and survival of upstream migrants. Human- caused alterations in flow, temperatures, and turbidities through the construction of dams and creation of reservoirs may be beneficial or detrimental to migrants, depending on the amount of change from natural and the fishes' ability to adapt. Dams and reservoirs placed in the migration path of adult salmon and steel head usually create unique passage problems because the structures and discharges differ and the stocks of fish involved change from one section of the river to the next.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1992
- Accession Number
- ADA323311
Entities
People
- C. A. Peery
- T. C. Bjornn
Organizations
- University of Idaho