Port Mansfield Texas Saltwater Fishing Report December 2018 Posted by Texas Saltwater Fishing Guide | Dec 13, 2018 | Texas Saltwater Fishing Reports | 0 | Redfish are fair to good on DOA Shrimp and Gulps under a popping cork around grass holes. Trout are fair to good on mud along the edge of the channel on Corkies and MirrOlures.