(CNN)Alaska has been in the throes of an unprecedented heat wave this summer, and the heat stress is killing salmon in large numbers.
Scientists have observed die-offs of several varieties of Alaskan salmon, including sockeye, chum and pink salmon.
Stephanie Quinn-Davidson, director of the Yukon Inter-Tribal Fish Commission, told CNN she took a group of scientists on an expedition along Alaska's Koyokuk River at the end of July, after locals alerted her to salmon die-offs on the stream.
She and the other scientists counted 850 dead unspawned salmon on that expedition, although ...
More info and video at CNN: https://www.cnn.com/2019/08/16/us/alask ... index.html
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