BPA Dishes Out $1.3 Million To Anglers For Reeling In 140,000 Northern Pikeminnow In Columbia/Snake Rivers; Top Angler, $69,000 For 7,000 fish
December 21st, 2022
In 2022, anglers caught and removed more than 140,000 northern pikeminnow from the Columbia and Snake rivers, which the Bonneville Power Administration says is protecting hundreds of thousands of young salmon and steelhead from predation.
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Pinniped Removal At Willamette Falls Drops Extinction Risk For Wild Winter Steelhead; 376 Sea Lions Euthanized On Columbia, Willamette Since 2008
December 16th, 2022
A program that has lethally removed sea lions from sections of the Columbia River and at Willamette Falls since 2008 is saving thousands of salmon and steelhead, many listed under the federal Endangered Species Act. The program is significantly dropping the risk of extinction for wild winter steelhead in the Willamette River, according to biologists.
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Where To Put The Birds? Research Says Cormorants Chased Off Columbia River Estuary Island Eat Far More Salmon, Steelhead Upstream
November 16th, 2022
Double-crested cormorants will eat many times more salmon and steelhead per bird as a proportion of their diet the farther they are pushed upstream in the Columbia River estuary, according to a presentation this week at the Northwest Power and Conservation Council’s Fish and Wildlife Committee meeting.
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Efforts Under NOAA Permit To Remove, Euthanize Salmon-Eating Sea Lions In Columbia, Willamette Rivers Showing Promising Results
July 28th, 2022
A recent report on pinniped predation shows that the presence of California sea lions at Bonneville Dam has declined significantly since 2015 when 195 of the marine mammals were observed by the U.S. Army Corps of Engineers in the dam’s tailraces. The number in 2021 was just 24.
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Bursting Myths, Wishful Thinking Over Allowing Wolves To Return To Traditional Landscapes
July 7th, 2022
In a new finding that goes against current conservation paradigms, re-introducing wolves and other predators to our landscapes does not miraculously reduce deer populations, restore degraded ecosystems or significantly threaten livestock, according to a new study.
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Salmon Predation In The North Pacific: UW Study Shows How Salmon Group Size Affects Predation Risk, Foraging Success
June 30th, 2022
Animals that live in groups tend to be more protected from predators. That idea might be common sense, but it’s difficult to test for some species, especially for wild populations of fish that live in the ocean.
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WSU Researchers Develop Drone System To Chase Off Pest Birds: ‘We Could Make Drones Look Like Predators’
June 8th, 2022
In the future, cameras could spot blackbirds feeding on grapes in a vineyard and launch drones to drive off the avian irritants, then return to watch for the next invading flock. All without a human nearby.
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Whack-A-Mole: Agency That Chased Salmon-Eating Cormorants Off Estuary Island Now Hazing Re-Located Birds On Astoria Bridge Over Columbia River
March 10th, 2022
The same federal agency that previously had hazed and culled Caspian terns and double-crested cormorants at East Sand Island in the lower Columbia River estuary in order to reduce predation on salmon and steelhead smolts is now hazing cormorants nesting on the Astoria-Megler Bridge six miles upstream.
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Suppression Of Northern Pike In Lake Roosevelt Showing Much Success; Goal Is To Reduce Population To ‘Almost Undetectable Levels’
February 17th, 2022
An effort by tribes, the state of Washington and federal agencies to suppress or eradicate invasive Northern Pike is bearing fruit in Lake Roosevelt, the reservoir behind Grand Coulee Dam, according to an update by biologists at this week’s meeting of the Northwest Power and Conservation Council’s Fish and Wildlife Committee.