Movement of Tagged White Shrimp, 'Penaeus setiferus' in the Northwestern Gulf of Mexico

摘要

From July 1977 through January 1979, 50,863 tagged white shrimp (Penaeus setiferus) were released in the Gulf of Mexico along the coast of Louisiana, with 36,639 released inshore and 14,224 released offshore. Recapture rates were 10.6% and 5.6% for inshore and offshore releases, respectively. Seventy-seven percent of the returns of tagged shrimp released in Caillou Lake were recaptured in this estuary and the adjacent offshore area. Predominant movement of the remainder of the recaptured stock from inshore releases was westerly, though some easterly movement occurred in fall and winter. Migration patterns noted in these studies are in general agreement with those of earlier investigations, especially the predominantly westward movement.