(AP) — For the first time in more than a century, salmon are swimming freely along the Klamath ... Researchers determined ...

Orca advocates are begging federal leaders to help keep the Puget Sound’s Southern Residents alive. Advocates say the Federal ...

Built in the 1950s, the dam has obstructed the upriver migration of fish, including chinook, whose numbers are a fraction of ...

Officials with the California Department of Fish & Wildlife say that as part of a broader initiative to expand the release ...

The stories of salmon and orcas in the Pacific Northwest are linked. Their paths intermingle in a vast web of ecosystems and ...

Plans to make the hydroelectric dam north of Mayo fish-friendly don't include measures to help chinook salmon ... a fishway that would allow fish swimming upriver to pass through the dam.

Yukon's environmental assessment board says the Whitehorse hydroelectric dam should be relicensed - as long as the corporation behind its operation commits to several recommendations.

Hydraulic observations from Hydraulics and Flow Dynamics, fine-scale monitoring of radio-tagged fish, and assessments of high energy anaerobic swimming via radio-accelerometer tags will be used to ...

PORTLAND, Ore.— The Center for Biological Diversity and Pacific Rivers filed a petition today to protect Washington coast spring-run Chinook salmon under the federal Endangered Species Act. The ...

That monitoring data on chinook and sockeye salmon is limited to major basins ... which by and large focuses on counting the number of fish swimming into major rivers. That treaty was signed ...