The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia
Thirty - seven species of cetacean are recorded from southern African waters. Four thousand, five hundred and thirty - seven records of approximately 60 000 cetaceans were analysed to defme distribution patterns of these species, including dedicated sightings (both scientific and commercial), incide...
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ftunivpretoria:oai:repository.up.ac.za:2263/33037 2023-05-15T15:36:26+02:00 The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia Findlay, Kenneth Pierce Best, Peter B. 1989-10-02 http://hdl.handle.net/2263/33037 en eng University of Pretoria http://hdl.handle.net/2263/33037 Findlay, KP 1989, 'The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/33037> E13/9/1214/gm ©1989 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. Thirty - seven species of cetacean UCTD Dissertation 1989 ftunivpretoria 2022-06-28T00:16:06Z Thirty - seven species of cetacean are recorded from southern African waters. Four thousand, five hundred and thirty - seven records of approximately 60 000 cetaceans were analysed to defme distribution patterns of these species, including dedicated sightings (both scientific and commercial), incidental sightings, commercial catches and specimens. Records of dedicated scientific sightings and incidental sightings were analysed by water depth, sea surface temperature and salinity and season, while commercial sightings and catches were analysed by month and water depth. Of the thirty - seven species recorded within the region, four mysticetes and one odontocele could be described as migratory, having a marked seasonal occurrence within the region, three species were defmed as possible migrators as they were not recorded in the dedicated data and showed seasonality in the incidental sighting and specimen databases, 20 species (19 odontocetes and one mysticete) could be described as resident (in that they were found throughout the year) and five species were termed "semi - resident" (certain components or forms of which showed strong seasonal occurrence, while other individuals had a year- round occurrence). Records of a further four species were too few to defme distribution patterns or seasonality. Analysis of the distribution of the large species showed three species (Eubalaena australis, Megaptera novaeangliae and Caperea marginata) to occur in nearshore waters and four species (Balaenoptera musculus, B. physalus, B. borealis and P.macrocepha/us) to occur in deep waters only. B. acutorostrata was recorded in both nearshore and offshore waters, while the two forms of B. edeni were found in nearshore and offshore waters respectively. The distribution analyses of the smaller odontocele species showed a number of component patterns including cosmopolitan, pelagic cosmopolitan, tropical, sub tropical and warm temperate components of the Agulhas Current, warm temperate component of the south coast, a component of the ... Doctoral or Postdoctoral Thesis Balaenoptera musculus Megaptera novaeangliae University of Pretoria: UPSpace |
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University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Thirty - seven species of cetacean UCTD |
spellingShingle |
Thirty - seven species of cetacean UCTD Findlay, Kenneth Pierce The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
topic_facet |
Thirty - seven species of cetacean UCTD |
description |
Thirty - seven species of cetacean are recorded from southern African waters. Four thousand, five hundred and thirty - seven records of approximately 60 000 cetaceans were analysed to defme distribution patterns of these species, including dedicated sightings (both scientific and commercial), incidental sightings, commercial catches and specimens. Records of dedicated scientific sightings and incidental sightings were analysed by water depth, sea surface temperature and salinity and season, while commercial sightings and catches were analysed by month and water depth. Of the thirty - seven species recorded within the region, four mysticetes and one odontocele could be described as migratory, having a marked seasonal occurrence within the region, three species were defmed as possible migrators as they were not recorded in the dedicated data and showed seasonality in the incidental sighting and specimen databases, 20 species (19 odontocetes and one mysticete) could be described as resident (in that they were found throughout the year) and five species were termed "semi - resident" (certain components or forms of which showed strong seasonal occurrence, while other individuals had a year- round occurrence). Records of a further four species were too few to defme distribution patterns or seasonality. Analysis of the distribution of the large species showed three species (Eubalaena australis, Megaptera novaeangliae and Caperea marginata) to occur in nearshore waters and four species (Balaenoptera musculus, B. physalus, B. borealis and P.macrocepha/us) to occur in deep waters only. B. acutorostrata was recorded in both nearshore and offshore waters, while the two forms of B. edeni were found in nearshore and offshore waters respectively. The distribution analyses of the smaller odontocele species showed a number of component patterns including cosmopolitan, pelagic cosmopolitan, tropical, sub tropical and warm temperate components of the Agulhas Current, warm temperate component of the south coast, a component of the ... |
author2 |
Best, Peter B. |
format |
Doctoral or Postdoctoral Thesis |
author |
Findlay, Kenneth Pierce |
author_facet |
Findlay, Kenneth Pierce |
author_sort |
Findlay, Kenneth Pierce |
title |
The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
title_short |
The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
title_full |
The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
title_fullStr |
The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
title_full_unstemmed |
The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia |
title_sort |
distribution of cetaceans off the coast of south africa and south west africa / namibia |
publisher |
University of Pretoria |
publishDate |
1989 |
url |
http://hdl.handle.net/2263/33037 |
genre |
Balaenoptera musculus Megaptera novaeangliae |
genre_facet |
Balaenoptera musculus Megaptera novaeangliae |
op_relation |
http://hdl.handle.net/2263/33037 Findlay, KP 1989, 'The Distribution of cetaceans off the coast of South Africa and South West Africa / Namibia, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/33037> E13/9/1214/gm |
op_rights |
©1989 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
_version_ |
1766366782803673088 |