Investigation into the factors associated with poor water quality in intensively cultured prawn ponds
Water quality problems are reported to be the factor limiting prawn production in the local prawn farm. This investigation was carried out to monitor water quality and its relationship to physical, chemical and biological conditions in the ponds in order to establish what factors should be monitored in order to predict problems. Pond collapse was found to be associated with high concentrations of ammonium, high pH and blue-green algae dominated phytoplankton populations. There was no easy means of predicting the imminent collapse of ponds as the phenomenon was never associated with the extreme of any of the conditions monitored. Rather it seemed to be related to the stability of the pond's algal population, which was largely unaccounted for. Recommendations toward improving water quality are proposed.
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| Format: | monograph biblioteca |
| Language: | English |
| Published: |
Department of National Parks and Wild Life Management
1987-05
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| Subjects: | Aquaculture, Ecology, Environment, Zimbabwe, Lake Kariba, Macrobrachium rosenbergii, giant river prawn, pond culture, water quality, |
| Online Access: | http://hdl.handle.net/1834/24960 |
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dig-aquadocs-1834-249602021-06-29T03:29:43Z Investigation into the factors associated with poor water quality in intensively cultured prawn ponds Snook, D.J. Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality Water quality problems are reported to be the factor limiting prawn production in the local prawn farm. This investigation was carried out to monitor water quality and its relationship to physical, chemical and biological conditions in the ponds in order to establish what factors should be monitored in order to predict problems. Pond collapse was found to be associated with high concentrations of ammonium, high pH and blue-green algae dominated phytoplankton populations. There was no easy means of predicting the imminent collapse of ponds as the phenomenon was never associated with the extreme of any of the conditions monitored. Rather it seemed to be related to the stability of the pond's algal population, which was largely unaccounted for. Recommendations toward improving water quality are proposed. 15 pages of tables and charts are included at the end of the publication, ten of which folded 2021-06-24T16:17:26Z 2021-06-24T16:17:26Z 1987-05 monograph http://hdl.handle.net/1834/24960 en Lake Kariba Fisheries Research Institute Project Report application/pdf application/pdf 19 Department of National Parks and Wild Life Management Kariba, Zimbabwe http://aquaticcommons.org/id/eprint/8165 424 2012-03-09 07:15:43 8165 Lake Kariba Fisheries Research Institute, Zimbabwe |
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| tag |
biblioteca |
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| language |
English |
| topic |
Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality |
| spellingShingle |
Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality Snook, D.J. Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| description |
Water quality problems are reported to be the factor limiting prawn production in the local prawn farm. This investigation was carried out to monitor water quality and its relationship to physical, chemical and biological conditions in the ponds in order to establish what factors should be monitored in order to predict problems. Pond collapse was found to be associated with high concentrations of ammonium, high pH and blue-green algae dominated phytoplankton populations. There was no easy means of predicting the imminent collapse of ponds as the phenomenon was never associated with the extreme of any of the conditions monitored. Rather it seemed to be related to the stability of the pond's algal population, which was largely unaccounted for. Recommendations toward improving water quality are proposed. |
| format |
monograph |
| topic_facet |
Aquaculture Ecology Environment Zimbabwe Lake Kariba Macrobrachium rosenbergii giant river prawn pond culture water quality |
| author |
Snook, D.J. |
| author_facet |
Snook, D.J. |
| author_sort |
Snook, D.J. |
| title |
Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| title_short |
Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| title_full |
Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| title_fullStr |
Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| title_full_unstemmed |
Investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| title_sort |
investigation into the factors associated with poor water quality in intensively cultured prawn ponds |
| publisher |
Department of National Parks and Wild Life Management |
| publishDate |
1987-05 |
| url |
http://hdl.handle.net/1834/24960 |
| work_keys_str_mv |
AT snookdj investigationintothefactorsassociatedwithpoorwaterqualityinintensivelyculturedprawnponds |
| _version_ |
1756077965857259520 |