Factors Affecting Puget Sound Coho Salmon (Oncorhynchus kisutch) Runs
- 1 September 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Fisheries and Aquatic Sciences
- Vol. 37 (9) , 1373-1378
- https://doi.org/10.1139/f80-176
Abstract
Summer streamflow, apparently affecting survival of 0-age coho salmon (O. kisutch), was an important determinant of Puget Sound run strength since 1952. Hatchery production was also a significant factor. Earlier studies indicated a relationship between rearing flows and coho run strength beginning in 1935. The persistence of the correlation between streamflow and run strength for more than 40 yr is noteworthy. Although the mechanism is unclear, survival of hatchery coho may also be positively dependent upon the same environmental conditions that affect stream-reared coho; a depensatory mortality relationship between abundance of hatchery coho and abundance of stream-reared coho is postulated.This publication has 1 reference indexed in Scilit:
- Estimation of Functional Responses of Predators on Juvenile SalmonJournal of the Fisheries Research Board of Canada, 1978