Thomas Boyd/The Oregonian California sea lions have found plentiful salmon -- and easy to catch -- at the foot of the Bonneville Dam. A lethal injection program seems to have made little difference.

New data show that over the last several years more Stellar sea lions are showing up at Bonneville Dam, not just in the spring, but for fall salmon runs, as well.

PORTLAND -- State and federal officials say they have done all they can to stop protected California sea lions from munching on threatened salmon at the base of the Bonneville Dam on the Columbia ...

For 10 years the highly publicized fight on the Columbia River and in the courts has been over California sea lions that show up below Bonneville Dam in March to eat endangered, migrating spring ...

All the sea lions were on a government “hit list” of about 75 sea lions identified by brands and other markings as repeat eaters of protected salmon at the dam.

There are about 4,500 sea lions in the Columbia River from Bonneville Dam to Astoria, Ore., and they love eating salmon and steelhead.

Since marine mammals were federally protected, the only course of action for federal and state officials was to find a ...

A sea lion tosses a partially eaten salmon in the Columbia River near Bonneville Dam on May 4, 2010, where six more sea lions were trapped earlier in the day with one to be euthanized, in North ...

{p}The killings are limited to California sea lions documented as targeting spring chinook or steelhead near Bonneville, the first dam the returning fish encounter on their run up the Columbia ...

California and Steller sea lions took a bigger bite of the 2016 salmon run than they did in any previous year that federal officials have observed.

Some sea lions follow their prey about 150 miles up the river, until they all hit the bottleneck created by the Bonneville Dam.

Lenza Paul and Michael Farber stand at the lip of Bonneville Dam, layered against the winter cold, binoculars and clipboard in hand, and count.