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
1901	Piranha-like pacu fish caught in South Carolina lake	msn	2023-04-05	US
1902	Sturgeon guardians needed to protect prehistoric-looking fish	mlive	2023-04-06	US
1903	102-pound fish caught near Goshen	nwahomepage	2023-04-07	US
1904	Once extinct 'zombie fish' comes back from the dead	theleader	2023-04-08	AU
1905	Bizarre Asian Creatures Invade Florida Everglades	theflstandard	2023-03-30	US
1906	1st ocean fish farm proposed for East Coast	aol	2023-04-07	US
1907	Fishers rescued after six days stranded on desert island, grim fears for others	9news	2023-04-18	AU
1908	Upside-down anglerfish and other alien oddities spotted in one of the world's deepest trenches	livescience	2023-03-03	US
1909	Fisheries and Oceans Canada shuts down lucrative baby eel fishery	thestar	2023-04-15	CA
1910	steelhead salmon escape fish farm, threatening B.C.’s Lois Lake ecosystem	nationalobserver	2023-04-15	CA
1911	Baby eels worth $112K seized at Halifax airport	CBC News	2023-04-12	CA
1912	Щучий ребус по-весеннему	ohotniki	2023-04-09	RU
1913	Métis Nation of Alberta releases results from 2022 fish health monitoring	rdnewsnow	2023-04-11	CA
1914	South Carolina teen catches invasive piranha-like fish	foxnews	2023-04-10	US
1915	До 15 апреля в Волгограде ловят судака	ohotniki	2023-04-07	PM
1916	Elderly couple dies after eating poisonous pufferfish	CNN	2023-04-11	MY
1917	Рыболовные рекорды	telegra	2023-04-11	RU
1918	6,000-year-old copper fishing hook discovered in Ashkelon	JERUSALEM POST	2023-03-29	IL
1919	Avoid eating unknown types of puffer fish	thesundaily	2023-03-29	MY
1920	Holy Carp! 67-pound invasive fish caught in Oklahoma	msn	2023-03-30	US
1921	See the rare blood-sucking fish of your nightmares	fox2detroit	2023-03-30	US
1922	Group of fishermen beat record for largest alligator gar caught in Lake Corpus Christi	kristv	2023-03-30	US
1923	China to release 200,000 rare fish into Yangtze River	china.org	2023-03-26	CN
1924	Чукотская рыбалка	ohotniki	2023-04-05	RU
1925	Much of Oregon faces ‘devastating’ salmon fishing ban	oregonlive	2023-03-25	US