Data Sets Relevant to Identification of Essential Fish Habitat (EFH) on the Gulf of Mexico Continental Shelf and for Estimation of Effects of Shrimp Trawling Gear

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorCaldwell, Pen_US
dc.contributor.authorSheridan, Pen_US
dc.contributor.otherAmerican Fisheries Society Symposiumen_US
dc.date.accessioned2010-02-15T16:46:03Z
dc.date.available2010-02-15T16:46:03Z
dc.date.issued2005en_US
dc.degreeen_US
dc.descriptionpg. 315en_US
dc.description-otheren_US
dc.description.abstractOur objectives were: to identify data describing habitats, shrimp trawling, and other human activities on the Gulf of Mexico continental shelf; to incorporate such data into a GIS format; and to provide preliminary experimental designs for assessment of effects of shrimp trawling on EFH. We developed 57 data layers describing habitat (benthic organism densities, sand/silt/clay, digitized sediment and biotic community maps), structures (bathymetry, State/Federal waters, safety fairways, oil and gas, artificial reefs, bottom obstructions), and fishing (patterns of shrimp fishing effort, experimental trawling sites/catches, closed waters). Best opportunities for experimental trawling in closed waters lie in southern and northwest Florida (permanent closures) and in Texas (seasonal closures). Experiments in open waters need to account for seasonal closures, ambient shrimping effort, and variations in sediments and their associated benthic communities. Cross-Gulf replication is necessary to provide a fishery-wide assessment of gear impacts. Most opportunities for replication exist at depths of 18-27 m for both sand and mud habitats. Moving to waters only as deep as 46-55 m forces experiments to become more regional and less Gulf-wide in nature. Benthic data are most dense off south Texas and Mobile Bay, less dense off Florida, and are largely absent off west Louisiana and north Texas. Non-extractive or no-take marine reserves could be used to study effects of complete cessation of trawling on habitats and fauna (estimating recovery rates of ecosystem components, conducting fishery-free gear impact studies). We present only a few options - data sets are available on CD.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeMobile Bayen_US
dc.geo-codeAlabamaen_US
dc.geo-codeFloridaen_US
dc.geo-codeLouisianaen_US
dc.geo-codeTexasen_US
dc.history1-15-09 kswen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/18516
dc.latitudeen_US
dc.locationNot available in house - Please contact GBIC for assistanceen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries10040.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectartificial reefsen_US
dc.subjectbathymetryen_US
dc.subjectbiotaen_US
dc.subjectcommercial fishingen_US
dc.subjectcontinental shelvesen_US
dc.subjectecosystem disturbanceen_US
dc.subjectfishery managementen_US
dc.subjectfishing gearen_US
dc.subjectGISen_US
dc.subjecthabitaten_US
dc.subjectmarine parks, ocean flooren_US
dc.subjectoil and gas industryen_US
dc.subjectprotected resourcesen_US
dc.subjectshrimp fisheriesen_US
dc.subjecttrawlingen_US
dc.subjectzoobenthosen_US
dc.titleData Sets Relevant to Identification of Essential Fish Habitat (EFH) on the Gulf of Mexico Continental Shelf and for Estimation of Effects of Shrimp Trawling Gearen_US
dc.typeCONFen_US
dc.universityen_US
dc.vol-issue41en_US

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