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

 

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dc.contributor.advisor Bolton, John J en_ZA
dc.contributor.advisor Troell, Max en_ZA
dc.contributor.advisor Probyn, T en_ZA
dc.contributor.advisor Smit, A J en_ZA
dc.contributor.author Robertson-Andersson, Deborah en_ZA
dc.date.accessioned 2014-08-13T14:07:29Z
dc.date.available 2014-08-13T14:07:29Z
dc.date.issued 2006 en_ZA
dc.identifier.citation Robertson-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.uri http://hdl.handle.net/11427/6174
dc.description Includes bibliographical references (p. 282-311). en_ZA
dc.description.abstract 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). en_ZA
dc.language.iso eng en_ZA
dc.subject.other Botany en_ZA
dc.title Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming en_ZA
dc.type Thesis / Dissertation en_ZA
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 en_ZA
dc.type.qualificationname PhD en_ZA
uct.type.filetype Text
uct.type.filetype Image


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