Before getting too far into the debate, a little background helps.

With its big, alligator-like mouth, torpedo-shaped body and a striking olive-green-and-white-scale pattern, the northern pike has a way of standing out on Nebraska’s fishing scene.

Rising temperatures in a Southcentral Alaska river have led to a hungrier population of invasive northern pike, a trend that could imperil native salmon and other fish species. A University of Alaska ...