Data from: Broodstock history strongly influences natural spawning success in hatchery steelhead (Oncorhynchus mykiss)
- Ford, Michael J.
- Murdoch, Andrew R.
- Hughes, Michael J.
- Seamons, Todd R.
- LaHood, Eric
DOIAbstract
We used genetic parentage analysis of 6200 potential parents and 5497 juvenile offspring to evaluate the relative reproductive success of hatchery and natural steelhead (Onchorhynchus mykiss) when spawning in the wild between 2008 and 2011 in the Wenatchee River, Washington. Hatchery fish originating from two prior generation hatchery parents had <20% of the reproductive success of natural origin spawners. In contrast, hatchery females originating from a cross between two natural origin parents of the prior generation had equivalent or better reproductive success than natural origin females. Males originating from such a cross had reproductive success of 26–93% that of natural males. The reproductive success of hatchery females and males fr...
Add to ORKG