| Title | Reduced reproductive success of hatchery coho salmon in the wild: insights into most likely mechanisms |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Thériault, Véronique, Gregory R. Moyer, Laura S. Jackson, Michael S. Blouin, and Michael A. Banks |
| Secondary Title | Molecular Ecology |
| Volume | 20 |
| Number | 9 |
| Pagination | p.1860-1869 |
| Date Published | 2011, May |
| Call Number | OSU Libraries: Electronic Subscription |
| Keywords | Calapooya Creek, Coho salmon = Oncorhynchus kisutch, Elk Creek, fecundity, genetics, hatcheries, hatchery salmonids, Nonpareil Dam, North Umpqua River, reproductive behavior, Rock Creek Hatchery, Umpqua River, wild salmonids, Winchester Dam |
| Notes | Hatchery salmonids have been shown to have less reproductive success than wild salmonids. This phenomenon has been extensively documented in steelhead. In this paper, the authors examine a hatchery program on the North Umpqua River to see if hatchery coho salmon also are less successful at breeding. Mature coho are less successful, particularly males, although hatchery jack salmon were about as successful as wild jacks. Even the most up-to-date hatchery practices such as using wild brood stock and allowing mating by pairs of fish were not enough to overcome the disadvantage suffered by hatchery coho. Possible mechanisms for the lack of reproductive success in hatchery coho are explored. |
| DOI | 10.1111/j.1365-294X.2011.05058.x |
