Accession Number : ADA323311

Title :   A Review of Literature Related to Movements of Adult Salmon and Steelhead Past Dams and Through Reservoirs in the Lower Snake River.

Descriptive Note : Technical rept.,

Corporate Author : IDAHO UNIV MOSCOW DEPT OF FISH AND WILDLIFE RESOURCES

Personal Author(s) : Bjornn, T. C. ; Peery, C. A.

PDF Url : ADA323311

Report Date : OCT 1992

Pagination or Media Count : 86

Abstract : A synthesis of published and unpublished literature on the upstream migration of adult salmon and steel head Oncorhynchus mykiss, with particular reference to passage through reservoirs and over dams,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.

Descriptors :   *WATER, *MIGRATION, *SNAKES, *FISHES, *RESERVOIRS, *DAMS, SYNTHESIS, PATHS, STEEL, CONSTRUCTION, BARRIERS, ADULTS, TURBIDITY.

Subject Categories : Biology
      Hydrology, Limnology and Potamology
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE