A recent study in Southcentral Alaska reveals that warming waters in the Deshka River are leading to increased predation by invasive northern pike, posing a serious threat to native salmon populations. Researchers from the University of Alaska Fairbanks and the U.S. Fish and Wildlife Service analyzed the stomach contents of northern pike and found that as water temperatures rise, particularly younger pike consume significantly more fish. This increased predation is attributed to the pike's boosted metabolism and appetite in warmer waters.