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Fishing WisconsinClamming (mussels) regulations

The word "clam" is a general legal definition used in Wisconsin's clamming law that refers to freshwater mussels.

This Web page is a summary of Wisconsin's clamming statutes and administrative rules. Refer to Section 29.537, Wis. Stat., and Chapter NR 24, Wis. Admin. Code for the specific law and regulations that govern commercial and noncommercial clamming in Wisconsin.

Also please refer to Section 29.604, Wis. Stat., and Chapter NR 27, Wis. Admin. Code for requirements pertaining to threatened and endangered species.

Commercial clamming - closed

All Wisconsin waters have been closed to commercial clamming.

Personal clamming and pearl hunting - illegal in Wisconsin waters

It is illegal to harvest live clams from the waters of the state. Under current rules, a person may take dead shells only (except shells from threatened or endangered species) on all public Wisconsin waters except that collection of even dead shells is prohibited in all waters within the St. Croix National Scenic Riverway.

Threatened or endangered mussel species

It is illegal to remove threatened or endangered clams from any Wisconsin water.

The following clam species are protected and may not be harvested. The Department of Natural Resources (DNR) will inform the public of any changes as they occur. Penalties for taking, possessing, transporting or selling threatened or endangered species are more severe than those of other clam species. If you are in doubt, leave the shell where you found it.

State endangered species

State threatened species

Last revised: Monday April 18 2016