Canada: Record breaking return of sockeye salmon to Okanagan spawning grounds

게시됨 2024년 9월 12일

Tridge 요약

Record numbers of sockeye salmon have returned to the Okanagan lakes after a 1,000-kilometer journey up the Columbia River, marking the biggest return on record for Okanagan sockeye. This achievement is due to conservation efforts by the Okanagan Nation Alliance, federal and provincial governments, and other partners, who have been working to reverse the decline of sockeye salmon caused by development, hydroelectric dams, irrigation, overfishing, and agricultural activities. The alliance's efforts include habitat restoration, creating fish passages at dams, optimizing flows for fish production, and releasing millions of sockeye salmon fry at a hatchery in Penticton each year. Monitoring programs and carcass sampling are also in place to track the health and survival rates of the population.
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원본 콘텐츠

Hundreds of thousands of sockeye salmon returned to spawning grounds in Osoyoos Lake and Skaha Lake after swimming up the Columbia River all summer, an incredible 1,000-kilometre journey. “It’s the biggest return of Okanagan sockeye on record, it’s really exciting,” Okanagan Nation Alliance fisheries biologist Elinor McGrath said. The Pacific sockeye salmon in the Columbia River basin have been declining over the past century due to pressures from development including hydroelectric dam construction, irrigation, over fishing and agricultural developments. Thanks to the conservation work done by the alliance, in collaboration with the federal and provincial governments over the last few decades, Okanagan sockeye are making a big comeback. “The run size through the lower portions of the route was roughly 550,000, and just shy of an estimated 300,000 of them made it to the lakes," McGrath said. The Okanagan River is one of the major tributaries of the Columbia River in a basin ...
출처: Infotel

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