Rivers in Alaska, Yukon set to warm: how will this affect salmon? | Juneau Empire

Rivers in Alaska and Yukon are Warming

Research from the Institute of Arctic and Alpine Research at the University of Colorado Boulder, which incorporated Indigenous knowledge, found that the North, including the Yukon and Alaska, is warming faster than the rest of the world due to climate change.

A recent study examined the temperatures of several rivers, including the Porcupine, Teedriinjik, Aniak, Andreafsky, Koyukuk, Takotna, and Chena. The study found that the warming of the Porcupine River may limit the growth of Chinook salmon, as the frequency of days and river length are expected to warm to the upper limit of the temperature range for individual growth.

The Porcupine River connects to the Yukon River at Fort Yukon in Alaska and flows out to the Bering Sea. Salmon hatch in freshwater, migrate to sea, and return inland as adults to spawn and die.

No direct quote available in the text.

Author's summary: Rivers in Alaska and Yukon are warming due to climate change.

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Juneau Empire Juneau Empire — 2025-10-15

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