Miss. Code Ann. § 49-15-96

Vessels licensed under Section 49-15-64.5 may keep in whole, for personal consumption only the following types of fish which are caught in the shrimp nets or trawls of the vessel: white trout; croaker, black drum, and ground mullet (Family Sciaenidae); sheepshead (Family Sparidae); gafftopsail catfish (Family Ariidae); and flounder (Family Bothidae and Family Pleuronectidae). The cumulative total of fish shall not exceed twenty-five (25) pounds. In addition, a vessel may keep three (3) dozen blue crabs (portunidae family). This exemption for personal consumption does not apply to fish or crabs that are otherwise illegal to possess or catch.