The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa

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dc.contributor.advisorAllanson, Brianen_ZA
dc.contributor.advisorWaldron, Howarden_ZA
dc.contributor.authorSwitzer, Todd Brenten_ZA
dc.date.accessioned2014-10-18T06:06:32Z
dc.date.available2014-10-18T06:06:32Z
dc.date.issued2003en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThe Knysna Estuary is the largest estuarine ecosystem in the warm temperate coastal region of South Africa. The estuary remains oligotrophic (chlorophyll-a < 5 mg l-1) despite increases in anthropogenic input of nitrogen and phosphate associated with the rapidly increasing urbanization of its littoral and catchment. This dissertation relies on original data, which includes the measuring of concentrations of ammonium, nitrates (nitrate and nitrite), dissolved inorganic phosphate and urea in the water column quarterly for one year at 21 stations. It estimates the contribution to these nutrients from rivers, storm drains and rainfall entering the estuary during this year by monitoring concentration and flow in these source waters. Seasonal, tidal and post-flood patterns of nutrient concentration in the water column are assessed with respect to nutrient loading to determine if variations in concentration are the result of loading or processes in the estuary.en_ZA
dc.identifier.apacitationSwitzer, T. B. (2003). <i>The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Oceanography. Retrieved from http://hdl.handle.net/11427/8617en_ZA
dc.identifier.chicagocitationSwitzer, Todd Brent. <i>"The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Oceanography, 2003. http://hdl.handle.net/11427/8617en_ZA
dc.identifier.citationSwitzer, T. 2003. The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Switzer, Todd Brent AB - The Knysna Estuary is the largest estuarine ecosystem in the warm temperate coastal region of South Africa. The estuary remains oligotrophic (chlorophyll-a < 5 mg l-1) despite increases in anthropogenic input of nitrogen and phosphate associated with the rapidly increasing urbanization of its littoral and catchment. This dissertation relies on original data, which includes the measuring of concentrations of ammonium, nitrates (nitrate and nitrite), dissolved inorganic phosphate and urea in the water column quarterly for one year at 21 stations. It estimates the contribution to these nutrients from rivers, storm drains and rainfall entering the estuary during this year by monitoring concentration and flow in these source waters. Seasonal, tidal and post-flood patterns of nutrient concentration in the water column are assessed with respect to nutrient loading to determine if variations in concentration are the result of loading or processes in the estuary. DA - 2003 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2003 T1 - The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa TI - The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa UR - http://hdl.handle.net/11427/8617 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/8617
dc.identifier.vancouvercitationSwitzer TB. The role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Oceanography, 2003 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/8617en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Oceanographyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherOceanographyen_ZA
dc.titleThe role of water column and benthic communities in the spatial and temporal production and uptake of nutrients in controlling the trophic status of the Knysna River Estuary, South Africaen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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