In the Northwest, salmon are struggling to make the seasonal migration upstream to their spawning grounds after a recent heat wave warmed up water temperatures. In fact, the water is so hot, ...

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.

Oct. 30 (UPI) --Traditionally, spring-run and fall-run Chinook salmon have been classified as two separate subspecies, or ecotypes, but new genetic analysis suggests the two groups are much more ...

Climate change has led to earlier spring blooms for wildflowers and ocean plankton but the impacts on salmon migration are more complicated, according to new research. In a new study, published in the ...

A crane moves a new bubbler to an awaiting boat at Lower Monumental Dam. The bubbler is designed to cool fish ladder water ...

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 ...

Anglers gathered at the Oroville Wildlife Area on Thursday morning to celebrate the return of a full recreational salmon ...

(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 ...