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Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming
Includes bibliographical references (p. 282-311).
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2014
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| _version_ | 1867614338838167552 |
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| access_status_str | Open Access |
| author | Robertson-Andersson, Deborah |
| author2 | Bolton, John J |
| author_browse | Bolton, John J Robertson-Andersson, Deborah |
| author_facet | Bolton, John J Robertson-Andersson, Deborah |
| author_sort | Robertson-Andersson, Deborah |
| collection | Thesis |
| description | Includes bibliographical references (p. 282-311). |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6174 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:50:27.902Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/6174 Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming Robertson-Andersson, Deborah Bolton, John J Troell, Max Probyn, T Smit, A J Botany Includes bibliographical references (p. 282-311). 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). 2014-08-13T14:07:29Z 2014-08-13T14:07:29Z 2006 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/6174 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Robertson-Andersson, Deborah Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| thesis_degree_str | Doctoral |
| title | Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| title_full | Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| title_fullStr | Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| title_full_unstemmed | Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| title_short | Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming |
| title_sort | biological and economical feasibility studies of using seaweeds ulva lactuca chlorophyta in recirculation systems in abalone farming |
| topic | Botany |
| url | http://hdl.handle.net/11427/6174 |
| work_keys_str_mv | AT robertsonanderssondeborah biologicalandeconomicalfeasibilitystudiesofusingseaweedsulvalactucachlorophytainrecirculationsystemsinabalonefarming |