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 ...

When the drug clobazam accumulates in Atlantic salmon's brains, migrating juvenile fish reach the ocean sooner, a new study found. A juvenile salmon is shown in May 2019. - Jörgen Wiklund Hatched in ...

AMHERST — Most birds and mammals rely on their eyes to sense daylight, but a new study finds fish also directly “see” daylight with the pituitary gland in their brains. A team of researchers led by ...

Chinook salmon equipped with tracking tags being readied for release into the San Joaquin River in California. (Nick Cahill/Courthouse News) (CN) — A new study reveals that some California salmon with ...

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 ...

While Idaho wrestles with how to restore salmon runs on the Snake and Columbia Rivers, California’s Chinook salmon are faced with near disaster this year. A mega drought has caused low flows and ...

The migratory journey of Atlantic salmon (Salmo salar) from freshwater rivers to the vast marine environment is a critical phase in their life cycle, significantly influencing population dynamics and ...

(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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Hatched in quiet ...