Densities of Penaeus aztecus, Penaeus setiferus, and other natant macrofauna in a Texas salt marsh

Simple item page
dc.acquisition-srcReview of GBNEP-6 reference listen_US
dc.call-noEstuariesen_US
dc.contract-noen_US
dc.contributor.authorZimmerman, R.J.en_US
dc.contributor.authorMinello, T.J.en_US
dc.contributor.otherEstuariesen_US
dc.date.accessioned2010-02-15T16:50:46Z
dc.date.available2010-02-15T16:50:46Z
dc.date.issued1984en_US
dc.degreeen_US
dc.descriptionpgs. 421-433en_US
dc.description-otheren_US
dc.description.abstractHabitat-related densities of natant macrofauna were compared between vegetated and nonvegetated areas in a Spartina alterniflora marsh on Galveston Island, Texas. The most abundant macrofauna were crustaceans, Palaemonetes pugio, Penaeus aztecus, Penaeus setiferus, and Callinectes sapidus, and small fish, Gobiosoma bosci, Lagodon rhomboides, Leiostomus xanthurus, Fundulus similis and Micropogonias undulatus. Excluding residents P. pugio, G. bosci and F. similis, most of the macrofauna were transient juveniles of estuarine-dependent species. Among crustaceans, P. pugio, P. aztecus, and C. sapidus were significantly more dense in vegetated habitat, but P. setiferus was not consistently moreabundant in either vegetated or nonvegetated habitat. Of 29 species of fishes, 14 were usually in vegetation, 11 were more often on nonvegetated bottom, and 5 were indifferent to either habitat. Much seasonal variability in abundances of P. aztecus, P. setiferus, and C. sapidus, but not P. pugio, could be attributed to changes in temperature, salinity and water-level. Strong selection for vegetated habitat by P. aztecus was related to the historical water-level pattern coinciding with seasonal periods of marsh flooding. Apparently, high seasonal tides during the spring and fall facilitated access to vegetated habitat in the marsh and exploitation by transient P. aztecus. In contrast, strong selection for vegetation by P. pugio, abundant year-around in the marsh, was not similarly influenced by seasonal changes in water-level. Overall, habitat-related densities and physical interactions suggest that marsh physiography together with differences in tides may greatly determine the extent to which certain estuarine macrofauna utilize marsh habitats.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Islanden_US
dc.history3/2/05 easen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19267
dc.latitudeen_US
dc.locationTAMUG Periodical Collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeColumbia, SCen_US
dc.publisherEstuarine Research Federationen_US
dc.relation.ispartofseries1506.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectaquatic animalsen_US
dc.subjectPenaeus aztecusen_US
dc.subjectPenaeus setiferusen_US
dc.subjectsalt marshesen_US
dc.subjectmarshesen_US
dc.subjectmarine crustaceansen_US
dc.subjectpopulation densityen_US
dc.subjectSpartina alternifloraen_US
dc.subjecttidal effectsen_US
dc.subjectabundanceen_US
dc.subjectseasonal variationsen_US
dc.titleDensities of Penaeus aztecus, Penaeus setiferus, and other natant macrofauna in a Texas salt marshen_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issuev.7, no.4Aen_US

Files

Collections

Galveston Bay Bibliography
GBIC Materials Available at Jack K. Williams Library