I believe that in Texas, public waters are catch and release only.  That's what it said when I got my license anyways.

Possession of Fish taken from Public Water

•Any fish caught must be taken by legal means and methods. Fish caught and immediately released are not considered to be in your possession. Any fish not immediately released that are retained by using any type of holding device such as stringer, cooler, livewell, or bucket are considered in your possession and must adhere to established protected length and bag limits. While fishing, it is illegal to be in possession of more fish than the daily bag limit or fish that are within a protected lenth limit.
•It is unlawful to possess a finfish of any species taken from public water, except broadbill swordfish, shark, or king mackerel that has the head or tail removed until such person finally lands the catch on the mainland, a peninsula, or barrier island not including jetties or piers and does not transport the catch by boat. Broadbill swordfish, shark, and king mackerel may have the head or tail removed but the carcass must remain intact - the fish may not be filleted.
•Any fish taken from public water and landed by boat or person in Texas must adhere to the protected length limits and daily bag and possession limits established for those fish in Texas regardless of the state or country in which they were caught.
•The bag limit for a guided fishing party is equal to the total number of persons in the boat licensed to fish or otherwise exempt from holding a license minus each fishing guide and fishing guide deckhand multiplied by the bag limit for each species harvested.