Gulf White Shrimp
White shrimp use the bay during late spring, summer, and fall to support a large harvesting area along the upper coast and near-shore water off the Gulf Beaches. They stay in bays longer and reach a larger size than brown shrimp and go to the Gulf as bays cool in the early fall. Identification of Gulf White shrimp (Penaeus setiferus) will have on line (or ridge) on the top of the shell.
Gulf Brown Shrimp
Brown Shrimp, harvested in coastal bays and at night in the Gulf, account for 80 percent of the Texas catch. The young shrimp use the bays during the spring, and begin entering the Gulf late May or early June. If growth is fast they may leave the bays earlier, this sometimes occurs after a warm winter. For identification purposes the Gulf Brown Shrimp (Penaaeus aztecus), there are three ridges along the back but the outer two ridges are bowed.