PORTLAND, Ore. (AP) -- Wildlife officials say a plan to kill California sea lions to save an endangered run of fish on an Oregon river is working.
The Oregon Department of Fish and Wildlife says that 2,400 steelhead reached the upper Willamette River to spawn this spring - the most in three years.
Biologists say sea lions migrating from California were entering the inland river and congregating under Willamette Falls.
They gobbled up steelhead waiting to traverse the falls.
The wildlife agency has killed 16 sea lions after getting federal approval for the plan late last year.
Targeted sea lions must be observed eating at least one steelhead near the waterfall or be spotted in the same area on two consecutive days.
An effort to trap the sea lions and remove them didn't work.
- Biologists: Killing sea lions is saving endangered steelhead
- Sea lions threatening winter steelhead will be killed
- Sea lion killings prompt reward offer
- Oregon gets OK to kill sea lions at Willamette Falls
- Salmon-eating sea lions targeted at Columbia River dam
- Court upholds order to protect salmon and steelhead
- Congress OKs bill to allow killing sea lions to help salmon
- Blitzing the Preseason: Cottage Grove Lions
- 'Lion King' first look released
- Disney's 'The Lion King' arrives in Eugene