The water is so hot in Alaska it's killing large numbers of salmon
CNN
By Ryan Prior, CNN
Updated 7:23 AM ET, Sat August 17, 2019
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.
...The water temperatures have breaking records at the same time as the air temperatures, according to Sue Mauger, the science director for the Cook Inletkeeper.
Scientists have been tracking stream temperatures around the Cook Inlet, located south of Anchorage, since 2002. They've never recorded a temperature above 76 degrees Fahrenheit. Until now.On July 7, a major salmon stream on the west side of the Cook Inlet registered 81.7 degrees.
...last week the Environmental Protection Agency told staff scientists it would no longer oppose a mining project in Alaska that had the potential to devastate one of the world's most valuable wild salmon fisheries, just after President Trump met with Alaska's Gov. Mike Dunleavy.
https://www.cnn.com/2019/08/16/us/alaska-salmon-hot-water-trnd/index.html