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Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa
Includes bibliographical references.
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| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Biological Sciences
2014
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| _version_ | 1867613898890280960 |
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| access_status_str | Open Access |
| author | Hewitt, Adrian Michael |
| author2 | Griffiths, Charles L |
| author_browse | Griffiths, Charles L Hewitt, Adrian Michael |
| author_facet | Griffiths, Charles L Hewitt, Adrian Michael |
| author_sort | Hewitt, Adrian Michael |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/9196 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:43:28.335Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/9196 Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa Hewitt, Adrian Michael Griffiths, Charles L Booth, Tony Kock, Alison Includes bibliographical references. 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. 2014-11-05T03:56:12Z 2014-11-05T03:56:12Z 2014 Master Thesis Masters MSc http://hdl.handle.net/11427/9196 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Hewitt, Adrian Michael Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| thesis_degree_str | Master's |
| title | Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| title_full | Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| title_fullStr | Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| title_full_unstemmed | Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| title_short | Demographics of a seasonal aggregation of white sharks at Seal Island, False Bay, South Africa |
| title_sort | demographics of a seasonal aggregation of white sharks at seal island false bay south africa |
| url | http://hdl.handle.net/11427/9196 |
| work_keys_str_mv | AT hewittadrianmichael demographicsofaseasonalaggregationofwhitesharksatsealislandfalsebaysouthafrica |