Mich. Comp. Laws § 324.41104
If the open season during which any species of fish, game or fur-bearing animals, or game birds may be taken or killed has been suspended or abridged in any waters or area by an order of the department as provided in this part, if that order is still in force, and if it appears to the department that the conditions existing in the waters or area affected by the order no longer require that additional protection for those species, then the department shall cause a thorough investigation to be made of the waters or area and the conditions prevailing in the waters or area. If after the investigation the department is satisfied that because of the increase of the fish, game or fur-bearing animals, or game birds protected by the order in the waters or area, or because of the removal of the cause threatening those species with depletion or extermination, the additional protection afforded by the order is no longer needed, the department may rescind or modify the original order. Notices of the rescinding or modifying of the order shall be published in the same manner as notice of the original order and filed in the same manner in the office of the clerk of each county. This part does not suspend, abridge, or regulate the open seasons established by law for the taking of fish for commercial purposes from the waters of Lakes Superior, Michigan, Huron, and Erie, and the bays of those waters.
MCL 324.41104