Mich. Comp. Laws § 324.48723
A person shall not purchase, buy, or sell, attempt to purchase, buy, or sell, transport to any point outside of this state at any time, or possess during the periods in which the taking or catching of the fish is prohibited, any species of fish taken on a sport fishing license or any species of fish taken without a commercial fishing license. Any lawfully taken fish may be possessed for 60 days after the close of the respective open seasons. A person possessing a nonresident fishing license may take from this state a day's legal catch of fish in accordance with his or her license. This section does not apply to or conflict with the possession, sale, or transportation of fish taken legally under the commercial fishing laws and regulations of this state.
MCL 324.48723