An early, in-season prediction based on detections of Idaho-bound steelhead at Bonneville Dam indicates 9,000 to 13,000 hatchery B-run fish may pass the Columbia River dam this year. The prediction ...

Historically, spring-run and fall-run Chinook salmon have been considered as separate subspecies, races, ecotypes, or even as separate species of fish. A new genetic analysis, however, shows that the ...