asian carp great lakes

Grass carp.

The Canadian government has confirmed that, for the first time, a fertile grass carp has been caught in the Canadian waters of western Lake Erie.

Grass carp are considered less of a threat than bighead and silver carp (but grass carp can eat a lot of aquatic plants) and for a long time, people thought the grass carp in the lakes were sterile. But lately, fertile grass carp have been turning up.

A commercial fisherman caught the fish off Point Pelee.


Warmer waters due to climate change are likely to hurt the reproduction of walleye in inland lakes in Midwest states like Michigan.

Gretchen Hansen is a research scientist with the Minnesota Department of Natural Resources.

She says over the next 30 years, as the planet and its waters warm, there will be a significant decline in walleye, especially those in smaller inland lakes, and an increase in largemouth bass. 

That's because walleye reproduce more readily in colder waters.

Hansen says the trend will be most noticeable in smaller inland lakes.

A grass carp.
Asian Carp Regional Coordinating Committee

Researchers say they’ve found grass carp eggs in the Sandusky River for the first time. The river flows into Lake Erie near Cedar Point.

Grass carp are a type of invasive Asian carp. This is the first time scientists have had direct confirmation that the fish are reproducing in the river.

Holly Embke found the eggs. She’s a master’s student at the University of Toledo.

“The reason we were looking where we were looking in the Sandusky River was because we thought there was the possibility of spawning, so it wasn’t wholly surprising to find eggs,” she says.

A bighead carp at the Shedd Aquarium in Chicago.
Rebecca Williams / Michigan Radio

There’s a coalition of federal and state agencies working to keep Asian carp out of the Great Lakes.

It’s called the Asian Carp Regional Coordinating Committee. It just came out with its carp plan for this year.

Jason Jenkins-Asian Carp Regional Coordinating Committee / flickr creative commons

Members of Congress want faster government action to stop Asian carp from reaching the Great Lakes through Chicago-area waterways.

US Senator Debbie Stabenow and a bi-partisan group of Great Lakes legislators met Wednesday with representatives of key federal agencies.

"We have to keep the Army Corps of Engineers, who has the primary responsibility now, laser focused on doing everything they can to stop these carp," said Stabenow.

A Minute With Mike: Carp Carp Hooray!

Aug 12, 2015
A Minute with Mike
Vic Reyes

Once again it's time to dust off the ol’ Future-tron 2000 and see what might be happening in our state's future.

Dateline: Summer, 2050


Lake and river towns throughout Michigan are undertaking final preparations for tonight's 30th annual Celebration of Carp, or “Carpration” as some Michiganeers fondly refer to it. Since its arrival in the Great Lakes in 2020, the Asian Carp has revolutionized Michigan's industry and diet.

User:Phils1stPix / Flicker


The U.S. Fish and Wildlife Service commissioned a report on the commercial grass carp industry. Grass carp are one of four species of Asian carp that officials are concerned about.

They’re used to control vegetation in lakes and ponds, and some people like to eat them. 

Asian carp

A federal report says genetic markers of Asian carp are still showing up in Chicago-area waterways, which environmentalists say highlights the continuing threat that invasive fish will reach the Great Lakes. 

The U.S. Fish and Wildlife Service has released its findings from 240 water samples it collected during the week of October 20, 2014. Twenty-three of these samples tested positive for DNA from silver carp, one of several Asian carp species that currently infest many Midwestern rivers.