An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe
The impact of industrial effluent discharged in Mazai stream was assessed through physical-chemical parameters and also by bio-monitoring of benthic macro-invertebrates. Samples were collected at three sites, one before the effluent discharge point into the stream (site 3) and two sites which were l...
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Canadian Center of Science and Education
2018
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| Online Access: | http://www.ccsenet.org/journal/index.php/jsd/article/view/5530 http://hdl.handle.net/11408/3243 |
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| author | Dube, Trevor Makaka, Caston Sibanda, Zwelabo |
| author_facet | Dube, Trevor Makaka, Caston Sibanda, Zwelabo |
| author_sort | Dube, Trevor |
| collection | DSpace |
| description | The impact of industrial effluent discharged in Mazai stream was assessed through physical-chemical parameters and also by bio-monitoring of benthic macro-invertebrates. Samples were collected at three sites, one before the effluent discharge point into the stream (site 3) and two sites which were located downstream after the discharge points (sites 1 and 2). High levels of chemical pollutants were recorded at sites 1 and 2 (ZINWA red category) whereas site 3 (reference site) consisted of relatively clean water (ZINWA blue category). This was confirmed by the biological evaluation process. The SASS4 scores at sites 1 and 2 indicated a deterioration of water quality while site 3 there was good water quality with high species diversity. Detrended correspondence analysis (DCA) showed that pollution sensitive taxa such as Hemiptera, Trichoptera, Coleoptera and Odonata were dominant at site 3 whilst the other sites were dominated by pollution tolerant species such Chironomids. Continuous discharge of effluent could lead to extreme degradation of Mazai stream hence loss of biodiversity of macro-invertebrates. |
| format | Article |
| id | ir-11408-3243 |
| institution | My University |
| language | English |
| publishDate | 2018 |
| publisher | Canadian Center of Science and Education |
| record_format | dspace |
| spelling | ir-11408-32432022-06-27T13:49:06Z An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe Dube, Trevor Makaka, Caston Sibanda, Zwelabo Stream Macro invertebrates Sewage effluent Bio-monitoring Water quality The impact of industrial effluent discharged in Mazai stream was assessed through physical-chemical parameters and also by bio-monitoring of benthic macro-invertebrates. Samples were collected at three sites, one before the effluent discharge point into the stream (site 3) and two sites which were located downstream after the discharge points (sites 1 and 2). High levels of chemical pollutants were recorded at sites 1 and 2 (ZINWA red category) whereas site 3 (reference site) consisted of relatively clean water (ZINWA blue category). This was confirmed by the biological evaluation process. The SASS4 scores at sites 1 and 2 indicated a deterioration of water quality while site 3 there was good water quality with high species diversity. Detrended correspondence analysis (DCA) showed that pollution sensitive taxa such as Hemiptera, Trichoptera, Coleoptera and Odonata were dominant at site 3 whilst the other sites were dominated by pollution tolerant species such Chironomids. Continuous discharge of effluent could lead to extreme degradation of Mazai stream hence loss of biodiversity of macro-invertebrates. 2018-10-04T15:36:48Z 2018-10-04T15:36:48Z 2010 Article 1913-9063 http://www.ccsenet.org/journal/index.php/jsd/article/view/5530 http://hdl.handle.net/11408/3243 en Journal of Sustainable Development;Vol. 3, No. 2: p. 210-214 open Canadian Center of Science and Education |
| spellingShingle | Stream Macro invertebrates Sewage effluent Bio-monitoring Water quality Dube, Trevor Makaka, Caston Sibanda, Zwelabo An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title | An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title_full | An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title_fullStr | An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title_full_unstemmed | An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title_short | An assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a Southern Urban Stream, Zimbabwe |
| title_sort | assessment of the effect of industrial and sewage effluent on aquatic invertebrates: a case study of a southern urban stream, zimbabwe |
| topic | Stream Macro invertebrates Sewage effluent Bio-monitoring Water quality |
| url | http://www.ccsenet.org/journal/index.php/jsd/article/view/5530 http://hdl.handle.net/11408/3243 |
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