| Title | Adaptive and behavioral responses to artificial propagation in a stock of chum salmon, Oncorhynchus keta. |
| Publication Type | Book Chapter |
| Year of Publication | 1980 |
| Authors | Lannan, James E., Jr. |
| Editor | McNeil, William J., and Daniel C. Himsworth |
| Secondary Title | Salmonid ecosystems of the North Pacific |
| Tertiary Title | Symposium on Salmonid Ecosystems of the North Pacific Ocean |
| Pagination | p.309-312 |
| Publisher | Oregon State University Press: Oregon State University Sea Grant College Program |
| City | Otter Crest, OR |
| Call Number | OSU Libraries; Valley QL638 .S2 S24, Guin QL638 .S2 S24 |
| Keywords | aquaculture, salmon |
| Abstract | A pilot production program with chum salmon (O. keta ) presented an opportunity to look for adaptive responses. Gametes were withdrawn from a vestigial, naturally-reproducing stock in Whiskey Creek, a tributary of Netarts Bay, Oregon. The fish have now been artificially propagated for two generations. This report describes selective processes and adaptive responses contributing to the evolution of this hatchery brood stock. Hatchery-produced fry entered the estuary somewhat earlier than fry produced in the natural habitat. A large proportion of hatchery-produced fish were recruited to the estuarine stock. The increased variation in size of out-migrant fry from the hatchery indicated qualitative as well as quantitative change in the stock's structure. |
| Notes | Also published as an OSU Agricultural Experiment Station Leaflet no 4892. From proceedings of a symposium held at Otter Crest, Oregon in May, 1978. |
| Label | 1360 |
Biblio Terms: