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ODFW will haze California sea lions at Willamette Falls

Sea lion with salmon
A California sea lion with a fish caught just below Willamette Falls in the spring of 2011.
Hazing Crew
Sea Lion hazing crew
- ODFW Photo -

Jan. 29, 2013

CLACKAMAS, Ore. – In an attempt to reduce predation on federally listed chinook salmon and steelhead, the Oregon Department of Fish and Wildlife will haze California sea lions below the fish ladders at Willamette Falls beginning Feb. 4.

In the third year of the pilot program to see whether non-lethal sea lion hazing can be effective in moving the animals away from Willamette Falls and reduce fish mortality, the program will take place seven days-a-week during daylight hours from Feb. 4 through April 30. The hazing effort will be restricted to the Willamette River from Willamette Falls to the I-205 Bridge about a mile downstream. No hazing will occur downstream of the I-205 Bridge.

The ODFW hazing crew will deploy specially-designed fireworks from the Willamette Falls fish ladder and from a boat to move California sea lions away from where salmon and steelhead congregate before entering fish ladders.

“Our purpose is to try to protect the listed salmon and steelhead from sea lion predation,” said Tom Murtagh, ODFW fish biologist in charge of the project. “Through a variety of non-lethal hazing methods, we hope to scare the sea lions away from the fish ladders downstream.”

The hazing operation was mandated by the Oregon Legislature in 2011 through passage of House Bill 3255. This work is being conducted according to provisions of the Marine Mammal Protection Act with authorization from the National Marine Fisheries Service. Predation of listed salmon and steelhead by California sea lions below Willamette Falls has been identified as a concern in the Draft Upper Willamette River Salmon and Steelhead Recovery Plan.

   

Contact:

Rick Swart (971) 673-6038

 
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