Heat stress that killed thousands of salmon in Alaska is a sign of things to come, scientist warns

Heat stress that killed thousands of salmon in Alaska is a sign of things to come, scientist warns

Source: CBC News

8/24/2019

Scientists believe heat stress killed thousands of salmon in an Alaskan river last month.

From July 7 to 11, communities along the Koyukuk River experienced sustained air temperatures of over 30 C, well above the seasonal average highs of less than 20 C.

Shortly after the heat wave, locals began reporting an unusual number of dead chum salmon washing up on the banks of the river.

Lisa Bifelt is Athabascan and lives in the village of Huslia in interior Alaska, almost 600 kilometres northwest of Anchorage on the Koyukuk River. She grew up on the land and relies on subsistence hunting to support her family.

"You'd see dead fish now and then, but I don't ever remember seeing this many," she said.

Koyukuk River

Salmon, Atlantic

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