TitleUse of hatchery coho salmon (Oncorhynchus kisutch) presmolts to rebuild wild populations in Oregon coastal streams
Publication TypeJournal Article
Year of Publication1986
AuthorsNickelson, Thomas E., Mario F. Solazzi, and Steven L. Johnson
Secondary TitleCanadian Journal of Fisheries and Aquatic Sciences
Volume43
Number12
Paginationp.2443-2449
Call NumberOSU Libraries: Valley SH223 .A52, Guin SH223 .A52, Electronic Subscription
KeywordsAlsea River, Bear Creek, Beaver Creek, Billie Creek, Coho salmon = Oncorhynchus kisutch, Deer Creek, Dirft Creek, Doe Creek, Dogwood Creek, hatcheries, Hayes Creek, Horse Creek, juvenile fish, Little Nestucca River, Louie-Baxter Creek, Misery Creek, North Fork Beaver Creek, Panther Creek, Rogers Creek, Salmon Creek, Siuslaw River, tributary of the Alsea River, tributary of the Little Nestucca River, tributary of the Siuslaw River, tributary of the Yaquina River, Yaquina River
NotesThis study found that 44% of wild juvenile presmolts "were replaced by hatchery presmolts." (p.2447) The hatchery fish were larger, and seem to have dominated the streams, to the detriment of the wild fish. The larger size of the hatchery fish was ascribed to earlier spawning and hatchery feeding. "As a result of our study, the release of hatchery presmolts in Oregon coastal streams is currently being concentrated in areas without wild populations." (p.2448)