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An assessment of the use of the Jackass penguin as a sampler of the marine environment
Bibliography: leaves 68-83.
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2014
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| _version_ | 1867613167548366848 |
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| access_status_str | Open Access |
| author | Laugksch, Rudiger C |
| author_browse | Laugksch, Rudiger C |
| author_facet | Laugksch, Rudiger C |
| author_sort | Laugksch, Rudiger C |
| collection | Thesis |
| description | Bibliography: leaves 68-83. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/9667 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:50.330Z |
| 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:11427/9667 An assessment of the use of the Jackass penguin as a sampler of the marine environment Laugksch, Rudiger C Zoology Bibliography: leaves 68-83. In this thesis the use of the jackass penguin Spheniscus demersus as a sampler of the marine environment is assessed. Between February 1987 and July 1988, 638 monthly diet samples were obtained from adult jackass penguins at west - (Marcus and Jutten Islands) and southwest-coast (Dyer Island) colonies off South Africa, supplementing data collected since 1980. Penguin diet was compared over time and between colonies in order to establish the presence or absence of qualitative changes or quantified trends in the biology of pelagic schooling fish species important to the South African purseseine fishery, viz. anchovy Engraulis capensis, pilchard Sardinops ocellatus, maasbanker Trachurus trachurus and red-eye Etrumeus whiteheadii. The principal prey of jackass penguins and major contributor to commercial catches is anchovy and, consequently, the biology of this fish species was emphasized. Monthly and annual trends in prey composition and anchovy size-range were related to the availability, abundance and distribution of the penguins' prey species in the marine environment. 2014-11-15T19:43:45Z 2014-11-15T19:43:45Z 1989 Master Thesis Masters MSc http://hdl.handle.net/11427/9667 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Zoology Laugksch, Rudiger C An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| thesis_degree_str | Master's |
| title | An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| title_full | An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| title_fullStr | An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| title_full_unstemmed | An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| title_short | An assessment of the use of the Jackass penguin as a sampler of the marine environment |
| title_sort | assessment of the use of the jackass penguin as a sampler of the marine environment |
| topic | Zoology |
| url | http://hdl.handle.net/11427/9667 |
| work_keys_str_mv | AT laugkschrudigerc anassessmentoftheuseofthejackasspenguinasasamplerofthemarineenvironment AT laugkschrudigerc assessmentoftheuseofthejackasspenguinasasamplerofthemarineenvironment |