Higher temperatures spur Alaska’s invasive pike to eat more, a bad sign for salmon

Invasive northern pike have wreaked havoc in Southcentral Alaska rivers and lakes. Introduced illegally in the 1950s, they have been devouring juvenile salmon and other native species. Now a University of Alaska Fairbanks study warns that matters could get even worse. As temperatures rise in waterways, invasive pike eat more, said the study, published in […]