Mich. Comp. Laws § 324.45707: Mussels; limitation on catch of certain undersized species.

Sec. 45707.

A person shall not take, catch, kill, offer for sale, or possess, in a quantity of more than 1% by weight, mussels of the varieties known either as mucket or pocketbook species of a size less than 3 inches at the greatest dimension. Undersized mussels shall be immediately culled and returned to the water from which they were taken without avoidable injury.