Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa

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dc.contributor.advisorBolton, John Jen_ZA
dc.contributor.advisorAnderson, R Jen_ZA
dc.contributor.authorWilby, Deborahen_ZA
dc.date.accessioned2014-11-05T17:41:25Z
dc.date.available2014-11-05T17:41:25Z
dc.date.issued2009en_ZA
dc.descriptionIncludes bibliographical references (leaves 84-92).en_ZA
dc.description.abstractSeveral aspects of seaweed ecology are poorly studied and documented in South Africa, especially the subtidal algal communities along the south coast. This study aims to investigate these communities where few other studies have been conducted. Sampling of shallow subtidal seaweed communities was undertaken at eleven sites along the south coast of South Africa from Still Bay to Mzamba. At each site a number of quadrats were placed within the shallow subtidal zone ranging in depth from O.3m to 2.5m. Within these quadrats all algae were destructively sampled (excluding encrusting algae), invertebrate grazers present were counted, and environmental measurements were taken. These environmental measurements included depth and slope, with temperature data supplied from a previous study. The biogeographical communities of this area were investigated using Detrended Correspondence Analysis, Canonical Correspondence Analysis and cluster analysis, in order to compare them with previous studies on the marine biogeography of the area. In the 85 quadrats that were sampled, 97 species of Chlorophyta, Phaeophyta and Rhodophyta were found. Articulated (or geniculate) coralline red algae were very abundant in the samples, with 17 species that contributed over 44 of the biomass. There was a high number of other red algal species (54 species) but they represented only 10 of the total biomass. Green algal species were not very common (there were only 12 species) but they contributed 42 to the biomass. There were a similar number of brown algal species (14), although they only contributed 2 of the total biomass.en_ZA
dc.identifier.apacitationWilby, D. (2009). <i>Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/9274en_ZA
dc.identifier.chicagocitationWilby, Deborah. <i>"Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2009. http://hdl.handle.net/11427/9274en_ZA
dc.identifier.citationWilby, D. 2009. Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Wilby, Deborah AB - Several aspects of seaweed ecology are poorly studied and documented in South Africa, especially the subtidal algal communities along the south coast. This study aims to investigate these communities where few other studies have been conducted. Sampling of shallow subtidal seaweed communities was undertaken at eleven sites along the south coast of South Africa from Still Bay to Mzamba. At each site a number of quadrats were placed within the shallow subtidal zone ranging in depth from O.3m to 2.5m. Within these quadrats all algae were destructively sampled (excluding encrusting algae), invertebrate grazers present were counted, and environmental measurements were taken. These environmental measurements included depth and slope, with temperature data supplied from a previous study. The biogeographical communities of this area were investigated using Detrended Correspondence Analysis, Canonical Correspondence Analysis and cluster analysis, in order to compare them with previous studies on the marine biogeography of the area. In the 85 quadrats that were sampled, 97 species of Chlorophyta, Phaeophyta and Rhodophyta were found. Articulated (or geniculate) coralline red algae were very abundant in the samples, with 17 species that contributed over 44 of the biomass. There was a high number of other red algal species (54 species) but they represented only 10 of the total biomass. Green algal species were not very common (there were only 12 species) but they contributed 42 to the biomass. There were a similar number of brown algal species (14), although they only contributed 2 of the total biomass. DA - 2009 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa TI - Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa UR - http://hdl.handle.net/11427/9274 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9274
dc.identifier.vancouvercitationWilby D. Shallow subtidal seaweed communities of the Agulhas Marine Province of South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9274en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBotanyen_ZA
dc.titleShallow subtidal seaweed communities of the Agulhas Marine Province of South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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