Study examining birds' habitat on Lake Michigan in full flight

When viewed from shore in late fall and winter, Lake Michigan often appears barren and unwelcoming. Hardly a place anyone or anything would choose to spend the coldest months of the year, right? But many bird species ...

Researchers map fish species at risk from dams

Dams are believed to be one of the biggest threats to freshwater organisms worldwide: They disrupt normal patterns of water and sediment flow, impede migration, and alter the character of spawning and feeding grounds. A shortage ...

Salmon migration mystery explored on Idaho's Clearwater River

(PhysOrg.com) -- Temperature differences and slow-moving water at the confluence of the Clearwater and Snake rivers in Idaho might delay the migration of threatened juvenile salmon and allow them to grow larger before reaching ...

US allows killing sea lions eating at-risk Northwest salmon

U.S. authorities on Friday gave wildlife managers in Washington, Oregon and Idaho permission to start killing hundreds of sea lions in the Columbia River basin in hopes of helping struggling salmon and steelhead trout.

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