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Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina
This research was initiated in 2001 with the overall objective of providing scientific information relevant to the sustainable management of South African Umbrina species. Previously there was confusion over the identity and distribution of Umbrina species in South African waters and very little was...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2014
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| _version_ | 1867613356283658240 |
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| access_status_str | Open Access |
| author | Hutchings, Kenneth |
| author2 | Field, John G |
| author_browse | Field, John G Hutchings, Kenneth |
| author_facet | Field, John G Hutchings, Kenneth |
| author_sort | Hutchings, Kenneth |
| collection | Thesis |
| description | This research was initiated in 2001 with the overall objective of providing scientific information relevant to the sustainable management of South African Umbrina species. Previously there was confusion over the identity and distribution of Umbrina species in South African waters and very little was known of their life histories, population dynamics and stock status. Morphological comparison of a large number of South African Umbrina (n = 369) with specimens from the type locality (Canary Islands) confirmed the identity of South African U canariensis Valenciennes, 1843, and allowed for an expanded description of the species. However, differences between specimens of U ronchus Valenciennes, 1843 and those of the second South African species, lead to the resurrection of U robinson; Gilchrist and Thompson 1908, as a valid name for this species. Spatial analysis of South African specimens collected with a variety of gear revealed U robinsoni to be a shallow water species found from the surf-zone to 40 m depth that is targeted by recreational shore anglers and spear fishers, whilst U canariensis occurs predominantly from 40-100m depth and is predominately landed as a by-catch in the inshore trawl fishery. Although both species occur throughout the South African eastern seaboard, U canariensis is most common west of the Kei River, where the continental shelf is wider. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6704 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:50.865Z |
| 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:11427/6704 Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina Hutchings, Kenneth Field, John G Griffiths, M H Zoology This research was initiated in 2001 with the overall objective of providing scientific information relevant to the sustainable management of South African Umbrina species. Previously there was confusion over the identity and distribution of Umbrina species in South African waters and very little was known of their life histories, population dynamics and stock status. Morphological comparison of a large number of South African Umbrina (n = 369) with specimens from the type locality (Canary Islands) confirmed the identity of South African U canariensis Valenciennes, 1843, and allowed for an expanded description of the species. However, differences between specimens of U ronchus Valenciennes, 1843 and those of the second South African species, lead to the resurrection of U robinson; Gilchrist and Thompson 1908, as a valid name for this species. Spatial analysis of South African specimens collected with a variety of gear revealed U robinsoni to be a shallow water species found from the surf-zone to 40 m depth that is targeted by recreational shore anglers and spear fishers, whilst U canariensis occurs predominantly from 40-100m depth and is predominately landed as a by-catch in the inshore trawl fishery. Although both species occur throughout the South African eastern seaboard, U canariensis is most common west of the Kei River, where the continental shelf is wider. 2014-08-28T09:20:21Z 2014-08-28T09:20:21Z 2005 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/6704 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Zoology Hutchings, Kenneth Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| thesis_degree_str | Doctoral |
| title | Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| title_full | Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| title_fullStr | Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| title_full_unstemmed | Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| title_short | Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina |
| title_sort | taxonomy biology and management of south african sciaenid fish of the genus umbrina |
| topic | Zoology |
| url | http://hdl.handle.net/11427/6704 |
| work_keys_str_mv | AT hutchingskenneth taxonomybiologyandmanagementofsouthafricansciaenidfishofthegenusumbrina |