The trouble with minijacks

Early-maturing Chinook salmon males, called jacks, have featured prominently in our updates over the past few years. We've observed jacks attempting to mate with larger adult females Read More…

The Salmon Hunger Games

Each year, salmon managers for the Columbia River try to peer into the future and foretell the number of adult spring Chinook that will return to spawn. Read More…

Northern pikeminnow bounty fishing

Predation is a natural part of maintaining a healthy ecosystem. But when predation by one species on another increases because of human changes to the environment, it Read More…

FISHBIO fall-run chinook salmon update

Fall-run Chinook adults are still trickling into various tributaries along the West Coast, leading to even higher numbers than were observed in 2009. Since higher numbers are Read More…

FISHBIO fall-run chinook salmon update

Word has gotten out about Fall-run Chinook salmon returns on the West Coast. While many regional newspapers are reporting higher returns in 2010, sometimes it is difficult Read More…

Postprandial depression

Known for taking up real estate in Pacific harbors, the California sea lion (Zalophus californianus) continues to be a challenge for fisheries managers trying to safeguard federally Read More…

Dam trout

Dams reduce the abundance of wild anadromous fish, such as salmon and steelhead, by cutting off access to historical spawning habitat. Our drive for flood control and Read More…