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dc.contributor.advisor Halpin, Patrick
dc.contributor.author Farrell, Edward
dc.date.accessioned 2009-04-23T20:55:42Z
dc.date.available 2009-04-23T20:55:42Z
dc.date.issued 2009-04-23T20:55:42Z
dc.identifier.uri http://hdl.handle.net/10161/969
dc.description.abstract Dolphin, Coryphaena hippurus, is a highly migratory cosmopolitan pelagic fish that is found seasonally in the Caribbean, Gulf of Mexico, and along the Atlantic coast of the United States. Dolphin are considered as one unit stock throughout the study area. This study used release-recapture data from a long-term tagging project to investigate baseline environmental preferences, habitat suitability based on dynamic ecogeographical variables, spatio-temporal movement through marine cadastral zones, and related policy implications. The data was collected from hundreds of recreational fishermen that tagged dolphin and also recaptured dolphin. A combination of in situ observations from recreational taggers and remotely sampled physical and biological variables (depth, bathymetric slope, distance to shore, distance to continental shelf, sea surface temperature, and sea surface chlorophyll-a) were used to establish an updated and novel baseline of environmental characteristics. A presence-only spatially explicit multivariate modeling approach was used to reveal the bio-physical seasonal preferences of dolphin that define the ecological niche. The results of the models show strong spatial sensitivity to sea surface temperature and surface chlorophyll-a concentration. The tagrecapture analysis showed that dolphin are capable of crossing multiple national and international marine jurisdictional zones throughout their lives. These movements bring the current management insufficiencies to light. Recommendations based on this multifaceted analysis focus on horizontal domestic and international fisheries integration. en_US
dc.format.extent 2189418 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.subject Coryphaena en_US
dc.subject hippurus en_US
dc.subject dolphin en_US
dc.subject Sargassum en_US
dc.subject Habitat en_US
dc.subject Movement en_US
dc.title The Habitat, Movements, and Management of Dolphin, Coryphaena hippurus, in the Western North Atlantic, Caribbean, and Gulf of Mexico en_US
dc.type Masters' project
dc.department Nicholas School of the Environment and Earth Sciences

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