January 15, 2019 — Oregon’s effort to prevent California sea lions from feasting on the dwindling winter steelhead at Willamette Falls will not proceed as planned because of the federal government shutdown.
Officials have so far trapped and euthanized four California sea lions that collectively eat about one quarter of the shrinking returns of winter steelhead at Willamette Falls. The water below the falls have become a reliable bonanza for hungry sea lions, along the journey from the ocean back to the headwaters where steelhead were born, and where they will spawn.
Last year, only 512 wild winter steelhead returned from the sea, stymied by poor ocean conditions and a network of dams that crowd the way home. But a relatively new problem threatens to eclipse the first two: the hungry mouths of dozens of sea lions waiting at the falls.
The Oregon Department of Fish and Wildlife launched a program to capture and kill the massive marine mammals after attempts to haul them back to the ocean failed. Despite being trucked hundreds of miles to the southern coast of Oregon, the animals promptly swam back – one sea lion made the return trip in three days.
This year could be the third in a row with the worst returns on record, and state biologists aren’t optimistic.
“There’s potential that we’re already past the point where they can recover and we just won’t know it for another decade,” said Shaun Clements, senior policy analyst with Oregon Department of Fish & Wildlife.