The Klamath River, flowing through Oregon and California, recently regained its natural course after more than a century of ...

In Oregon, human-made barriers have turned centuries-old migratory routes into life-or-death struggles for fish.

"Fiiish!" shouts Dennis Bock over the roar of the weir. He quickly dips his landing net into the dark green water. Moments later, a powerful, muscular creature wriggles in the hands of the 48-year-old ...

Understanding the connection between flow conditions and upstream salmon migration success and faiure has been limited by a lack of detailed hydraulic information such as encounter velocities that ...

In recent decades, the climate crisis has turned up the dial, deepening droughts and fueling a rise in catastrophic fire as ...

Too early for offshore aquaculture, says Norwegian Institute of Marine Research. "More knowledge is needed" on environmental ...

The annual field trip has connected tens of thousands of local students with Oregon’s salmon migration for decades. The water needs to be clean, cold and clear, and the surrounding land needs to ...

RAUSU, Hokkaido—Salmon are at the peak of their upstream migration in the rivers of the eastern Shiretoko Peninsula in Hokkaido. Salmon spend three to five years feeding and growing in the open ...

Researchers used a network of about 40 water quality monitors to spot spikes in salt contamination, then simulated those conditions on salmon eggs and juvenile fish in a lab.

Carrie Hugo, a Bureau of Land Management biologist, is responsible for counting the number of Eagles that come to Lake Coeur ...