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Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River
Thesis (MScAgric (Conservation Ecology and Entomology)--University of Stellenbosch, 2005.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867614111505842176 |
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| access_status_str | Open Access |
| author | Bredenhand, Emile |
| author2 | Samways, Michael J. |
| author_browse | Bredenhand, Emile Samways, Michael J. |
| author_facet | Samways, Michael J. Bredenhand, Emile |
| author_sort | Bredenhand, Emile |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScAgric (Conservation Ecology and Entomology)--University of Stellenbosch, 2005. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/2630 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:46:50.651Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/2630 Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River Bredenhand, Emile Samways, Michael J. University of Stellenbosch. Faculty of Agrisciences. Dept. of Conservation Ecology and Entomology. Dissertations -- Conservation ecology and entomology Theses -- Conservation ecology and entomology Reservoirs -- Environmental aspects -- South Africa Water -- Pollution -- South Africa -- Eerste River Water quality biological assessment -- South Africa -- Eerste River Benthic animals -- Effect of habitat modification on -- South Africa -- Eerste River Invertebrates -- Effect of habitat modification on -- South Africa -- Eerste River Indicators (Biology) -- South Africa -- Eerste River Stream ecology -- South Africa -- Eerste River Thesis (MScAgric (Conservation Ecology and Entomology)--University of Stellenbosch, 2005. A semi-arid country, like South Africa, with unpredictable seasonal rainfall, is subject to great scarcity in water and an ever-increasing demand from the rising human population. Therefore, efficient reservoirs as well as monitoring methods are needed to manage the South African water supply. This study was undertaken on the Eerste River in the Western Cape, South Africa, focusing on the impact of the Klein Plaas dam system on the benthic macroinvertebrates. The study also examined the use of benthic macroinvertebrates as bioindicators of water quality with special reference to the South African Scoring System Version 5(SASS5) that is currently being used nationally. The impoundment of the water, as well as the inter-basin transfer programme and the experimental cage-culture trout farm, all play a significant role in the disturbance impact of the dam on the Eerste River system. The disturbance is manifested as a drop in water quality that can be seen in the distribution of keystone species, changes in the riparian vegetation, as well as in physical-, chemical-, and biomonitoring evaluations. The study also indicated that the SASS5 is effective, but needs some adjustments, such as inclusion of a prediction phase, finer spatial-scale methodologies and greater consideration of the rarity of species. Masters 2008-07-01T07:46:53Z 2010-06-01T08:54:02Z 2008-07-01T07:46:53Z 2010-06-01T08:54:02Z 2005-12 Thesis http://hdl.handle.net/10019.1/2630 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Dissertations -- Conservation ecology and entomology Theses -- Conservation ecology and entomology Reservoirs -- Environmental aspects -- South Africa Water -- Pollution -- South Africa -- Eerste River Water quality biological assessment -- South Africa -- Eerste River Benthic animals -- Effect of habitat modification on -- South Africa -- Eerste River Invertebrates -- Effect of habitat modification on -- South Africa -- Eerste River Indicators (Biology) -- South Africa -- Eerste River Stream ecology -- South Africa -- Eerste River Bredenhand, Emile Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title | Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title_full | Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title_fullStr | Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title_full_unstemmed | Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title_short | Evaluation of macro-invertebrates as bio-indicators of water quality and the assessment of the impact of the Klein Plaas dam on the Eerste River |
| title_sort | evaluation of macro invertebrates as bio indicators of water quality and the assessment of the impact of the klein plaas dam on the eerste river |
| topic | Dissertations -- Conservation ecology and entomology Theses -- Conservation ecology and entomology Reservoirs -- Environmental aspects -- South Africa Water -- Pollution -- South Africa -- Eerste River Water quality biological assessment -- South Africa -- Eerste River Benthic animals -- Effect of habitat modification on -- South Africa -- Eerste River Invertebrates -- Effect of habitat modification on -- South Africa -- Eerste River Indicators (Biology) -- South Africa -- Eerste River Stream ecology -- South Africa -- Eerste River |
| url | http://hdl.handle.net/10019.1/2630 |
| work_keys_str_mv | AT bredenhandemile evaluationofmacroinvertebratesasbioindicatorsofwaterqualityandtheassessmentoftheimpactofthekleinplaasdamontheeersteriver |