Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina

 

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dc.contributor.advisor Field, John G en_ZA
dc.contributor.advisor Griffiths, M H en_ZA
dc.contributor.author Hutchings, Kenneth en_ZA
dc.date.accessioned 2014-08-28T09:20:21Z
dc.date.available 2014-08-28T09:20:21Z
dc.date.issued 2005 en_ZA
dc.identifier.citation Hutchings, K. 2005. Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/6704
dc.description.abstract 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. en_ZA
dc.language.iso eng
dc.subject.other Zoology en_ZA
dc.title Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina en_ZA
dc.type Doctoral Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
dc.type.qualificationlevel Doctoral
dc.type.qualificationname PhD
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Hutchings, K. (2005). <i>Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/6704 en_ZA
dc.identifier.chicagocitation Hutchings, Kenneth. <i>"Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2005. http://hdl.handle.net/11427/6704 en_ZA
dc.identifier.vancouvercitation Hutchings K. Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2005 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6704 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Hutchings, Kenneth AB - 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. DA - 2005 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina TI - Taxonomy, biology and management of South African sciaenid fish of the genus Umbrina UR - http://hdl.handle.net/11427/6704 ER - en_ZA


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