Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming

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dc.contributor.advisorBolton, John Jen_ZA
dc.contributor.advisorTroell, Maxen_ZA
dc.contributor.advisorProbyn, Ten_ZA
dc.contributor.advisorSmit, A Jen_ZA
dc.contributor.authorRobertson-Andersson, Deborahen_ZA
dc.date.accessioned2014-08-13T14:07:29Z
dc.date.available2014-08-13T14:07:29Z
dc.date.issued2006en_ZA
dc.descriptionIncludes bibliographical references (p. 282-311).en_ZA
dc.description.abstractThe aim of this study was to investigate whether a land-based recirculating seaweed-abalone integrated aquaculture system using Ulva lactuca was feasible as well as to test the differences between a commercial gravel bed recirculation system to an existing flow through system. These studies were carried out at two abalone farms: Danger Point (I & J) (140 km east of Cape Town) and at Jacobs Bay (JSP) (120 km north of Cape Town. South Africa). In both studies no significant difference in terms of water quality, abalone growth rates and abalone health were found. It was found that a seaweed /abalone recirculating system at the designed water exchange rates (25 %) was nitrogen limited and that the system as designed could be run at 75 % recirculation rate and remove a significant proportion of the dissolved nutrients (ammonium, phosphorus, nitrate and nitrite).en_ZA
dc.identifier.apacitationRobertson-Andersson, D. (2006). <i>Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/6174en_ZA
dc.identifier.chicagocitationRobertson-Andersson, Deborah. <i>"Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2006. http://hdl.handle.net/11427/6174en_ZA
dc.identifier.citationRobertson-Andersson, D. 2006. Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Robertson-Andersson, Deborah AB - The aim of this study was to investigate whether a land-based recirculating seaweed-abalone integrated aquaculture system using Ulva lactuca was feasible as well as to test the differences between a commercial gravel bed recirculation system to an existing flow through system. These studies were carried out at two abalone farms: Danger Point (I & J) (140 km east of Cape Town) and at Jacobs Bay (JSP) (120 km north of Cape Town. South Africa). In both studies no significant difference in terms of water quality, abalone growth rates and abalone health were found. It was found that a seaweed /abalone recirculating system at the designed water exchange rates (25 %) was nitrogen limited and that the system as designed could be run at 75 % recirculation rate and remove a significant proportion of the dissolved nutrients (ammonium, phosphorus, nitrate and nitrite). DA - 2006 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2006 T1 - Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming TI - Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming UR - http://hdl.handle.net/11427/6174 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6174
dc.identifier.vancouvercitationRobertson-Andersson D. Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2006 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6174en_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.titleBiological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farmingen_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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