Evaluating Avian Predation Research: Science Panel Seeks Further Analysis On Effectiveness Of Bird Control Measures Aimed At Boosting Steelhead Survival

April 30th, 2021

The Independent Scientific Advisory Board has released an analysis of two studies offering differing views on the effectiveness of avian predation control measures in the Columbia River basin. The scientists say further comparative research is needed to determine if hazing and killing terns and cormorants are boosting steelhead smolt-to-adult returns.

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Managing Lake Pend Oreille Fisheries: 240,000 Non-Native Lake Trout Removed Since 2006, Walleye Now Targeted

April 9th, 2021

On the heels of a successful and significant reduction of lake trout in Lake Pend Oreille, Idaho is now using some of the same methods – gillnetting and an angler rewards program – it used to fight lake trout in a new effort to reduce the population of invasive walleye in the lake.

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2020 Draft Pinniped Predation Report: Steller Sea Lions At Bonneville Dam Taking Big Whack Out Of Steelhead, Sturgeon

April 2nd, 2021

During the fall 2019 and spring 2020 monitoring seasons at Bonneville Dam, sea lions continued to prey on salmon, steelhead and sturgeon, but the proportion of California sea lions is continuing to drop while that of steller sea lions continues to rise, according to a draft annual pinniped report by the U.S. Army Corps of Engineers.

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Despite Covid-19 Challenges, BPA Says Pikeminnow Reward Program Met Removal Goals, Though Harvest 70,000 Fish Below Average

January 15th, 2021

The Bonneville Power Administration reports that in 2020, for the 23rd consecutive season, the Northern Pikeminnow Sport Reward Program met its annual goal to remove 10% to 20% of pikeminnow, 9 inches or longer, in the Columbia and Snake rivers that prey on juvenile salmon and steelhead. Due to Covid-19, however, catch numbers were far below average.

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