invasive species

File photo of the South Haven lighthouse

(MPRN-South Haven) Governor Rick Snyder says a new shipping lock in Joliet, Illinois is needed to stop Asian carp from making their way from the Mississippi River system to the Great Lakes. But, Snyder says it’s taking too long to get the project started.  

Garlic mustard covers a forest floor in Rockford, Illinois
Victoria Nuzzo

Invasive species are an expensive problem in the United States. Federal agencies spent more than $104 million last year to control them. But a recent study on invasive garlic mustard shows that, at least in some cases, it might be better to leave invasive species alone.

Dense colonies of European frogbit can develop quickly in shallow, slow-moving water
Michigan Department of Natural Resources

An invasive aquatic plant has found its way into West Michigan lakes. The Michigan Department of Natural Resources confirmed European frogbit in two lakes in east Grand Rapids. European frogbit is a water plant with half-inch to two-inch leaves that look like small water lilies. 

AP Photo/Jeff Barnard

The Chinook salmon or King salmon - a favorite of anglers on Lake Michigan - is in decline. That’s because it’s starving. According to a study by Michigan State University, the population of the salmon’s only prey - a small invasive fish called the alewife - has dropped by more than half since 2002. 

Ironically, other invasives - zebra and quagga mussels - are eating the alewives’ food.


(MPRN-Detroit) Michigan and the Canadian province of Ontario are negotiating a strategy for improving and managing waterways. Governor Rick Snyder and Ontario Premier Kathleen Wynne met in Detroit to announce the beginnings of the joint plan.