From the Koyukuk River, to the Kuskokwim, to Norton Sound, to Bristol Bay’s Igushik River, unusually warm temperatures across Alaska this summer led to die-offs of unspawned chum, sockeye and pink ...

For the second year in a row, people living along the Kobuk River in Northwest Alaska have reported spotting dead chum salmon and whitefish in the river. The die-off was spotted in mid-July, when warm ...