He points to the changes within the lower river of 15 years ago, when the sea lions began killing the spawning sturgeon below Bonneville Dam. The predation forced the fish to spawn in the ...

A stringer of keeper sturgeon taken in the Bonneville pool by clients of Marvin’s Guide Service. Anglers may keep one sturgeon a day with a fork length between 38 and 54 inches. Sturgeon ...

Everything about the Bonneville Dam ... other fish — and then there's the more direct impact of creating physical barriers to ...

Science News // 1 decade ago Man, sea lions battle for fish at Ore. dam In an effort to sustain the threatened sturgeon population around Oregon's Bonneville Dam, wildlife workers have been ...