Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution

 

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dc.contributor.advisor Day, J H en_ZA
dc.contributor.author Gitay, Asher en_ZA
dc.date.accessioned 2016-03-14T07:22:25Z
dc.date.available 2016-03-14T07:22:25Z
dc.date.issued 1973 en_ZA
dc.identifier.citation Gitay, A. 1973. Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/17728
dc.description.abstract A study of 50 samples of Polychaeta mainly from a northern profile (0.5 - 550 m) and down to 800 m, reveals that the fauna is characterised by extremely small specimens and a great taxonomic divergence. Techniques of handling minute specimens are described, together with 21 new species, including three subspecies, six new genera and a new subgenus. The discovery of aberrant genera indicates a substantial endemism, the evolution of which is enabled by: (a) the narrow Straits of Tiran which separates the Gulf from the Red Sea proper; (b) the hydrographical factors causing vertical homogeneity of temperature, salinity and oxygen, as well as (c) a possible zone of convergence which isolates the Gulf's northern part to an as yet unknown degree. The pattern of family distribution and specimen frequencies confirms the existence of six successive benthic associations along an analysed sediment profile. The poor biomass of the fauna indicates that the Gulf has an overall low productivity, caused by the limited amount of fresh water run-off, low content of organic matter and small quantities of nutrients. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Zoology en_ZA
dc.title Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution 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 en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Gitay, A. (1973). <i>Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/17728 en_ZA
dc.identifier.chicagocitation Gitay, Asher. <i>"Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1973. http://hdl.handle.net/11427/17728 en_ZA
dc.identifier.vancouvercitation Gitay A. Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1973 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17728 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Gitay, Asher AB - A study of 50 samples of Polychaeta mainly from a northern profile (0.5 - 550 m) and down to 800 m, reveals that the fauna is characterised by extremely small specimens and a great taxonomic divergence. Techniques of handling minute specimens are described, together with 21 new species, including three subspecies, six new genera and a new subgenus. The discovery of aberrant genera indicates a substantial endemism, the evolution of which is enabled by: (a) the narrow Straits of Tiran which separates the Gulf from the Red Sea proper; (b) the hydrographical factors causing vertical homogeneity of temperature, salinity and oxygen, as well as (c) a possible zone of convergence which isolates the Gulf's northern part to an as yet unknown degree. The pattern of family distribution and specimen frequencies confirms the existence of six successive benthic associations along an analysed sediment profile. The poor biomass of the fauna indicates that the Gulf has an overall low productivity, caused by the limited amount of fresh water run-off, low content of organic matter and small quantities of nutrients. DA - 1973 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1973 T1 - Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution TI - Red Sea Polychaetes from the Gulf of Elat (Aqaba) : a contribution to the knowledge of the Polychaeta fauna and the environmental conditions which affects its distribution UR - http://hdl.handle.net/11427/17728 ER - en_ZA


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