WILLOW, Alaska—Corey Ercolani pulled a northern pike from a gillnet and slit its belly with a knife. Inside its guts lay fresh evidence of a growing biological crime: a dead juvenile salmon. A coho, ...

Beneath the tropical trees of southern Mexico, enormous shoals of sulfur mollies blanket the water surface of toxic sulfur springs, where survival depends on collective defense against relentless ...

The MARHAB project examines fish stocks and food webs to enhance ecosystem considerations in EU fisheries policy ...

A study found flatheads occupy the highest level in the food web, forcing native species like smallmouth bass to change their diets. The invasive catfish are growing much faster and larger in the ...

Greece is battling an invasive pufferfish species wreaking havoc on its coastlines. These aggressive fish, with their ...