Record sockeye salmon run on Columbia River is now threatened by hot water

Record sockeye salmon run on Columbia River is now threatened by hot water

By Lynda V. Mapes

Source: tri-cityherald

7/11/2024

Credit: Stuart Westmorland Getty Images

Smashing records, sockeye salmon are booming up the Columbia River, in a run expected to top 700,000 fish before it’s over. But a punishing heat wave has made river temperatures so hot many may never make it their last miles home. With water temperatures above 80 degrees in the Okanogan River, sockeye are stacking up at its mouth and waiting rather than entering the tributary to get to their spawning grounds across the U.S.-Canada border.

Called a thermal barrier, warm water is as real as a wall for a cold-water fish like sockeye. More than a quarter-million sockeye died in the Lower Columbia in 2015 just the same way: The water got too hot for them to travel.

Columbia River

Salmon, Kokanee

Continue...

News Id		Source	Stamp	country
1526	Tiny fish is reintroduced to the Pearl River	nola	2023-09-02	US
1527	14-year-old hooks wallet holding $2,000 while fishing	14news	2023-08-22	US
1528	CPW calls for 'emergency salvage' to remove all fish from Colorado alpine lake	denvergazette	2023-08-14	US
1529	Restoring Lake Victoria’s Ecology Could Help End Fish-For-Sex Culture	forbes	2023-08-21	CA
1530	Swedish man eats 13.85 ounces of fermented fish in one minute	upi	2023-09-10	SW
1531	Salmon escape raises concerns about seals	themainemonitor	2023-08-26	CA
1532	Scientists hoping to confirm rare handfish species spotted during CSIRO marine survey	abc	2023-08-22	AU
1533	Broiling in the deep	Globe and Mail	2023-08-27	CA
1534	Rare fish endangered in two US states has researchers	yahoo	2023-08-21	US
1535	Color-Changing Fish Can ‘See’ Using Its Skin	themessenger	2023-08-22	US
1536	More anglers are replacing lead fishing weights with steel, brass and other metals	kernvalleysun	2023-08-13	US
1537	Shopper says she found ‘live worms’ in the salmon at Costco	dailydot	2023-08-13	CA
1538	We bathe and fish in seas where huge amounts of unrefined water are dumped	elpais	2023-08-13	SP
1539	Alaskan Angler Breaks State Record With Cartoonish-Looking Rockfish	whiskeyriff	2023-08-15	US
1540	People fill bags as millions of tiny fish jump from sea onto North Wales beach	dailypost	2023-08-10	UK
1541	Big salmon run at Seattle’s Ballard Locks is wowing visitors	seattletimes	2023-08-18	US
1542	Minnesota boy reels in wallet filled with $2,000 cash while fishing and returns it to Iowa farmer	Fox News	2023-08-30	US
1543	Fish illegally released in Utah waters have officials reminding residents	Fox News	2023-08-30	US
1544	Texas fisherman's alligator gar earns him outstanding angler award' from state	Fox News	2023-09-06	US
1545	Silicon Valley meets salmon fjords	thefishsite	2023-09-01	US
1546	More Wild Atlantic Salmon Found in U.S. Rivers	Associated Press	2023-09-06	US
1547	Fish With a Funny Float Gets a CT Scan at the Denver Zoo	Associated Press	2023-09-04	US
1548	Montreal urban fish farmers say their Arctic char cuts greenhouse gases and waste	northeastnow	2023-08-13	CA
1549	US looks to ban imports, exports of a tropical fish threatened by aquarium trade	krcgtv	2023-08-16	US
1550	Large creature with ‘intense yellow’ fin found deep in the Amazon	miamiherald	2023-08-18	US