When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication ...

The U.S. and Canada collectively spend tens of millions of dollars per year to fight invasive, sport fish-attacking sea lamprey in the Great Lakes, a control effort that's spanned generations.

The COVID-19 pandemic resulted in a surge in sea lamprey populations, which have been damaging Great Lakes native species ...

Great Lakes steelhead are adfluvial fish, meaning they migrate from big lakes into rivers to spawn. This annual migration starts in the fall and ends in the spring when they return to the lakes to ...

Scientists believe the invaders would out-compete native species and Michigan's prized sports fish, creating ecological chaos on the Great Lakes. Bighead and silver carp are now within 47 miles of ...

the Great Lakes Fishery Commission’s sea lamprey program can begin rehiring U.S. federal workers to control the invasive species, which can wreak havoc on other fish. That means the program will ...

Now, the Great Lakes Fishery Commission is looking to clarify ... He warned that every sea lamprey is capable of consuming 40 pounds of fish and females could lay 100,000 eggs.

An invasive, snake-like creature that’s preyed on Great Lakes fish for decades may have a greater presence this year after U.S. abatement efforts were temporarily paused. While some job cuts have been ...