A flood of pink salmon both in Alaska and Russia is overwhelming global markets and driving down prices to lows not seen since the 1990s, Alaska salmon processor giant Trident Seafoods told its fishermen over the weekend.

Trident Seafoods said in a letter sent Aug. 5 to fishermen "the current state of the salmon markets is volatile, and future indicators are even more concerning."

Fishermen and buyers continue to cite excess inventory from last season as having a significant impact on all Alaska salmon prices.