Report Invasive (Asian) Carp

Bighead and silver carp are spreading to lakes, rivers and streams in the Mississippi River and Great Lakes region, but are not yet established in the Great Lakes. They are well-suited to the climate of the Great Lakes region, which is similar to that in their native region in Asia, and these carp particularly favor large rivers and connecting lakes. Biologist expect that invasive (Asian) carp will disrupt the food chain that supports the native fish of the Great Lakes, such as walleye, yellow perch and lake whitefish. Due to their large size and rapid rate of reproduction, bighead and silver carp pose a significant threat to the ecosystem of the Great Lakes Basin. Silver carp leap high out of the water when disturbed by watercraft. Boaters can be and have been injured by these leaping fish. Fear of injury could diminish the desire for recreational boating activities in areas inhabited by these fish. Both bighead and silver carp may result in diminished fishing opportunities resulting from population declines of the species of fish sought by recreational anglers and commercial operations. It is illegal to transport or possess live bighead, silver, grass or black carp in Michigan.

Please report all invasive (Asian) carp sightings using the form below.

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Observation Details
Invasive (Asian) carp observed or captured: Observed
For captures, was a specimen(s) retained by observer? Yes
Observed/captured fish is a: Bighead Carp
Silver Carp
Grass Carp/Black Carp
Date and Location of Observation
Observer's Contact Information


Contact information is used only to facilitate follow-up and possible site visits by Fisheries Division biologists. A visit may be scheduled if observers provide physical evidence of the observation for review - e.g., photos, video, live or preserved specimen. Observers will be provided with follow-up reports on the findings of Division biologists.