Relative influence of habitat fragmentation and inundation on brown shrimp farfantepenaeus aztecus production in northern Gulf of Mexico salt marshes

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dc.acquisition-srcen_US
dc.contract-noen_US
dc.contributor.authorRoth, BMen_US
dc.contributor.authorRose, KAen_US
dc.contributor.authorRozas, LPen_US
dc.contributor.authorMinello, TJen_US
dc.contributor.otherMarine Ecology - Progress Seriesen_US
dc.date.accessioned2010-02-15T16:46:22Z
dc.date.available2010-02-15T16:46:22Z
dc.date.issued2008en_US
dc.degreeen_US
dc.descriptionpgs. 185-202en_US
dc.description-otheren_US
dc.description.abstractWe used a spatially explicit individual-based model to investigate the relative influences of inundation and habitat fragmentation on brown shrimp Farfantepenaeus aztecus production in northern Gulf of Mexico (NGOM) salt marshes. The model simulates the mortality, growth, and movement of a population of brown shrimp from their arrival in Spartina salt marsh as post-larvae in spring to their emigration as sub-adults in summer and fall. We quantified production in terms of sub-adult export, growth production (a measure of total shrimp growth), and trophic transfer (total shrimp mortality). We utilized a factorial design to simulate shrimp on all combinations of 4 maps that represented an idealized progression of habitat fragmentation and 4 inundation regimes from each of 2 locations in the NGOM (Louisiana and Texas). We also quantified the configuration of the marsh landscape to determine if specific metrics could be utilized as a proxy for shrimp production within a single inundation regime. Our results indicate that inundation is more important than habitat fragmentation for determining sub-adult export, growth production, and trophic transfer, but that marsh configuration has a strong influence on shrimp production within a single inundation regime. Inundation affected all 3 measures of shrimp production, primarily due to decreased mortality incurred when shrimp have access to vegetation through marsh flooding. We conclude that simple metrics of marsh configuration are capable of adequate predictions of shrimp production in static landscapes, but future research must consider the dynamic relationship between inundation and marsh fragmentation to fully assess how these forces affect shrimp production.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeNorthern Gulf of Mexicoen_US
dc.geo-codeTexasen_US
dc.geo-codeLouisianaen_US
dc.history1-16-09 kswen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/18561
dc.latitudeen_US
dc.locationNot available in house - Please contact GBIC for assistanceen_US
dc.longitudeen_US
dc.notesen_US
dc.publisheren_US
dc.relation.ispartofseries10081.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectFarfantepenaeus aztecusen_US
dc.subjectfragmentationen_US
dc.subjectinundationen_US
dc.subjectproductionen_US
dc.subjectSpartinaen_US
dc.subjectsalt marshen_US
dc.subjectgulf of Mexicoen_US
dc.subjectestuariesen_US
dc.subjectindividual-based modelen_US
dc.titleRelative influence of habitat fragmentation and inundation on brown shrimp farfantepenaeus aztecus production in northern Gulf of Mexico salt marshesen_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue359en_US

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