Knik Tribe officials have found very high levels of the toxin which causes paralytic shellfish poisoning in samples from Southern Alaska mussels and clams — but they warn that parts of some fish, including king salmon, may also contain the toxin

Alaska researchers will continue a controversial study this year on a parasite in Yukon River chinook salmon that requires killing hundreds of fish, a move that’s drawn sharp criticism from Canadian experts. 

First Nations groups in the Yukon Territory and Alaska GOP Gov. Mike Dunleavy's administration are advancing discussions about whether hatcheries could help stem a steep crash in salmon populations on the Yukon River.

Chum returns are the lowest on record, leaving communities with empty freezers and uncertainty about getting through the winter.

On the Yukon River, subsistence salmon fishing is being closed to protect king salmon as they migrate upriver.