Dead chum salmon have been spotted floating down the Yukon river. Water temperatures are measuring at 70 degrees, the warmest in recollection.

Norton Sound residents have reported salmon die-offs in unusually large numbers during the last week. According to the Norton Sound Economic Development Corporation (NSEDC), dead pre-spawned pink salmon were found in multiple river systems over the weekend.

Warm water near Golovin is hurting pink salmon. Many salmon caught had red speckled dots on flesh, raising concerns about food safety. Female pink salmon were seen dead in the bay.

As record high temperatures swept Alaska, many people said that the heat was killing them. For Kuskokwim salmon, it was actually true.

Dead salmon and whitefish found along the banks of the Yukon River.

Salmon have been found dead in rivers across Western Alaska this summer. The largest die-off reported comes from the Koyukuk River, a tributary of the Yukon.