Invasive Walleye Moving Higher Into Snake River Basin, Threatening Wild, Hatchery Stocks Of Juvenile Salmon, Steelhead, Lamprey

March 22nd, 2024

Walleye, an invasive species with a reputation for a voracious appetite, has moved down the Columbia River from Lake Roosevelt and are now being counted in increasing numbers upstream of Lower Granite Dam on the Snake River, according to a report by the Idaho Department of Fish and Game.

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Ocean Conditions Key For Columbia River Basin Salmon/Steelhead Survival, NOAA Researchers Say About Average In 2023

March 22nd, 2024

urvival of Columbia River basin salmon and steelhead is poor – in most cases less than 2 percent smolt to adult returns – compared to a Northwest Power and Conservation SARs goal of 6 percent, according to a presentation at the Council’s March meeting.

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Strong, Ocean-Warming El Nino Has Arrived But Researchers Say California Current Ecosystem Should Hold Up Better Than Last Time (2015)

March 22nd, 2024

The California Current ecosystem is a vital ocean system stretching from Washington to Baja California. It is facing a strong 2024 El Niño event, a cyclical warming of the Pacific Ocean. However, the latest information from NOAA’s Integrated Ecosystem Assessment program suggests the ecosystem is better positioned to weather these changing conditions than previous El Niño events.

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Work Progresses On Removing Second Of Four Dams On Klamath River; Copco No. 1 Should Be Gone By End Of Summer

March 22nd, 2024

Following a successful test blast, the Klamath River Renewal Corporation will proceed with the removal of the Copco No. 1 Dam, the second dam to be removed as a part of the Klamath dam removal project. The Copco No. 1 Dam, constructed in 1918 for the sole purpose of hydroelectric power generation, has blocked fish passage for over 100 years and is expected to be fully removed by the end of August.

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