Study Says Invasive Pike Thriving on Salmon

A study by the U.S. Geological Survey and the Alaska Department of Fish and Game published January 24, 2013 in the Ecology of Freshwater Fish journal suggests that when salmon and pike habitats overlap, salmon recovery depends on suppressing the invasive pike. The study concludes that nonnative pike prefer juvenile salmon but will turn to other native fish when salmon are less abundant. Juvenile salmon in fresh water have no natural defense against the voracious pike, which ambush fingerlings in slow-moving water.

Read full story