The marbled crayfish has been added to Michigan’s list of prohibited species. Marbled crayfish have the ability to reproduce by cloning and can produce up to 700 eggs per reproductive cycle.
Prohibited species cannot be possessed, introduced, imported, sold, or offered for sale as a live organism, except under certain circumstances. Although it is yet to be discovered in the wild in Michigan, a single marbled crayfish released in open water could initiate an entire population.
For more information on the Marbled Crayfish, visit the Marbled Crayfish Invasive Species page.