Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa

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dc.contributor.advisorGriffiths, Charles Len_ZA
dc.contributor.advisorBooth, Tonyen_ZA
dc.contributor.advisorKock, Alisonen_ZA
dc.contributor.authorHewitt, Adrian Michaelen_ZA
dc.date.accessioned2014-11-05T03:56:12Z
dc.date.available2014-11-05T03:56:12Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractWhite sharks (Carcharodon carcharias) are widely distributed, ecologically important marine apex predators that are considered to be vulnerable to extinction. Given their crucial roles in structuring marine ecosystems, their populations need to be effectively monitored. Photo-identification provides a standardised, non-lethal method of assessing the population dynamics of extant species and provides live-encounter mark-recapture and data that are essential for management and conversation. White sharks occur throughout South African coastal waters but their centre of abundance is the Western Cape, where large sharks predominate at aggregation sites like Seal Island, False Bay. This study documents inter- and intra-seasonal trends in mean sighting rates and sex ratios of white sharks at Seal Island, and provides mark-recapture data that are used to estimate proportions of "resident" and "transient" white sharks, their size-distribution and maturity composition.en_ZA
dc.identifier.apacitationHewitt, A. M. (2014). <i>Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/9196en_ZA
dc.identifier.chicagocitationHewitt, Adrian Michael. <i>"Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2014. http://hdl.handle.net/11427/9196en_ZA
dc.identifier.citationHewitt, A. 2014. Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Hewitt, Adrian Michael AB - White sharks (Carcharodon carcharias) are widely distributed, ecologically important marine apex predators that are considered to be vulnerable to extinction. Given their crucial roles in structuring marine ecosystems, their populations need to be effectively monitored. Photo-identification provides a standardised, non-lethal method of assessing the population dynamics of extant species and provides live-encounter mark-recapture and data that are essential for management and conversation. White sharks occur throughout South African coastal waters but their centre of abundance is the Western Cape, where large sharks predominate at aggregation sites like Seal Island, False Bay. This study documents inter- and intra-seasonal trends in mean sighting rates and sex ratios of white sharks at Seal Island, and provides mark-recapture data that are used to estimate proportions of "resident" and "transient" white sharks, their size-distribution and maturity composition. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa TI - Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa UR - http://hdl.handle.net/11427/9196 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9196
dc.identifier.vancouvercitationHewitt AM. Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9196en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.titleDemographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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