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Detalle de Documento

  • Movement of tagged white shrimp, penaeus setiferus in the northwestern gulf of Mexico

    Publicado: New Orleans Louisiana Department of Widlife and Fisheries 1983

    Autor(es): Lyon

    Ubicación: Centro de Documentación INVEMAR

    Solicítelo como: D-413

    Palabras clave: Crustaceos, Invertebrados, Carídeos

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 por ciento and 5.6 por ciento 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. some juveniles released inshore were recaptured in estuaries other than Caillou Lake. The most distant recovery was a shrimp recaptured in East Galveston Bay, Texas. There was little movement of shrimp released offshore in september and october 1977. Shrimp released in december 1977 showed some movement to the east as well as farther offshore. Those released offshore in january 1979 moved inshore during spring and summer with some returning to estuaries both east and west of the released longitude. These overwintering shrimp are the basis of the spring inshore white shrimp fishery as well as the brood stock for the next years fishery. No difference was noted in movement according to sex in either inshore and offshore studies. Migration patterns noted in these studies are in general agreement with those of earlier investigations, especially the predominantly westward movement. Results of this study, however, differed from earlier ones in that some individuals tagged in this study traveled greater distances than those tagged in previous studies, and some individuals released offshore in winter moved into estuaries during spring and summer.