Add Yahoo as a preferred source to see more of our stories on Google. When the drug clobazam accumulates in Atlantic salmon's brains, migrating juvenile fish reach the ocean sooner, a new study found.

Rising water temperatures in the Columbia River Basin are raising questions about whether fishery managers must take new steps to save the imperiled fish. A persistent heat wave gripping parts of ...

A rare spring-run salmon was detected this month making its way up the Klamath River into the upper basin for the first time ...

Member of the UC Santa Cruz Fisheries Collaborative Program holds a live adult Chinook salmon from the Sacramento River in 2022. (Photo by Jeremy Notch) Imagine a world where just six out of every 100 ...

As climate change warms rivers across British Columbia, young salmon are facing increasing heat stress at vulnerable stages ...

In the largest study of its kind to date, a team of international researchers has investigated how pharmaceutical pollution affects the behaviour and migration of Atlantic salmon. The study, led by ...

One of the enduring ichthyological mysteries is how migratory fish know when it is time to move from their winter to summer habitats. The ability to tell when the seasons are changing is crucial for a ...

SEATTLE — Salmon migration and spawning peaks in October in western Washington, but the record-breaking warm and dry summer in 2022 is having an impact on salmon numbers. All salmon first pass through ...

(CNN) — Hatched in quiet streams and rivers, salmon undertake a perilous journey to reach the open ocean where they become mature adults. Over millions of years, generations of young salmon have ...