PORTLAND, Ore. - A federal agency has authorized the killing of some California sea lions that prey on migrating salmon and steelhead at the base of Bonneville Dam on the Columbia River. The lethal ...

In Astoria, sea lions are an endemic presence along the Columbia River banks and especially along the Port of Astoria’s East Mooring Basin. The port has experimented with several nonlethal methods for ...

Wildlife regulators have been trying to protect the endangered salmon along the Columbia River, and in 2007 they began shooting sea lions that... Salmon-Eating Sea Lions Targeted For Good Taste Each ...

Of all the schemes that humans have devised to keep sea lions from gorging on the salmon of the Columbia River basin, none has worked for long. Local officials and researchers have chased sea lions ...

Pacific Northwest sea lions got the spotlight in a Congressional hearing last week. The U.S. House of Representatives’ Committee on Natural Resources spent nearly two and a half hours Wednesday ...

Here's what happens: The plankton eat algae that contains the acid, and then the fish eat the plankton, and the sea lions eat the fish — one thing surviving off another, passing on the toxic acid.

It's known as the "Bonneville Buffet." Below Bonneville Dam, located 40 miles east of Portland, Ore. in the Columbia River Gorge, sea lions, sometimes by the dozens, gather to feed on tightly packed ...

PORTLAND - The competition between protected sea lions gobbling Columbia River salmon and impatient humans with empty fishing lines has led to vigilante action. A fisherman shot a sea lion who stole a ...