The annual fall count of migrating summer chum salmon came to a close Oct. 15, with another positive sign for the species.

Walleye, a beloved but notorious invasive fish, have been flushed into the Upper Willamette Basin after reservoir drawdowns.

Life-history variation is fundamental to the long-term persistence of populations and species because it ensures their ability to adapt to changing environments. Many important studies have focused on ...

The Washougal and Beaver Creek hatcheries will take over some steelhead production. The Department of Fish and Wildlife ...

A long-running court battle over how to balance protections for endangered fish with hydropower dams in the Columbia River ...

Conservationists have asked a federal court to approve changes to dam operations on the lower Snake and Columbia Rivers to ...