The shrinking of chinook, sockeye, coho and chum salmon has a negative impact on the number of eggs fish lay, but smaller body sizes also mean fewer meals, fewer commercial fishing dollars and fewer nutrients transported into rivers every year.

Chinook (king) and chum are the major salmon species on the Yukon and Kuskokwim. They’ve been at historically low numbers in both rivers for years. The coho (silver) returns have also dropped.This will be the fourth year subsistence fishing has been closed or severely restricted on both rivers. The region is bracing for another dismal subsistence harvest.

Fourteen Alaska fisheries have been declared federal disasters by the U.S. Secretary of Commerce. Gina Raimondo issued the declarations on Jan. 21. The announcement includes Yukon-Kuskokwim Delta salmon fisheries, and could lead to federal funding for fishermen.

Canada and Alaska have agreed to a seven-year fishing moratorium on Yukon River chinook salmon to aid the species' recovery, following years of declining numbers.

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