International Journal of Biodiversity and Conservation
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Article Number - 79DF43F55541

Vol.10(2), pp. 106-116 , February 2018
ISSN: 2141-243X

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Full Length Research Paper

Impacts of waste on macroinvertebrate assemblages of Msimbazi River, Tanzania

Moses Joel Shimba
  • Moses Joel Shimba
  • Department of Biotechnology and Bioinformatics, University of Dodoma, Dodoma, Tanzania.
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Isabela Thomas Mkude
  • Isabela Thomas Mkude
  • Department of Environmental Studies, Open University of Tanzania, Dar Es Salaam, Tanzania.
  • Google Scholar
Fredrick Ekow Jonah
  • Fredrick Ekow Jonah
  • Department of Fisheries and Aquatic Sciences, University of Cape Coast, Cape Coast, Ghana.
  • Google Scholar

 Received: 30 June 2017  Accepted: 15 November 2017  Published: 28 February 2018

Copyright © 2018 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0

The status of waste and its impact on macroinvertebrate assemblages along Msimbazi River was assessed between May 2014 and August 2014. The aim was to identify the type of waste, their potential sources, and the assemblage of macroinvertebrate taxa that have been affected by waste disposal in the river. The study involved field study and laboratory analysis. Results indicated that organic and inorganic waste are the main types of waste dumped into the river; industries and communities living adjacent and along the river are the main waste producers. Macroinvertebrates belonging to eight orders and 27 families were recorded. Macroinvertebrates of the Gastropoda and Diptera orders were the most dominant in occurrence of all macroinvertebrate taxa, contributing 27 and 21%, respectively of the total macroinvertebrates. Based on macroinvertebrates sensitivity, 21 taxa (77.77%) were identified as being highly tolerant to pollution, six taxa (22.23%) as moderately tolerant and none of the most sensitive taxa. Macroinvertebrate diversity indices yielded a slightly lower Shannon-Weiner diversity index (H’=0.42) and the Shannon Evenness Index (0.2050) amongst sites. These findings are indicative of disturbed systems whose severity seems to be driven by the on-going waste disposal within and along the river continuum.

Key words: Benthic macrofauna, diversity indices, organic waste, inorganic waste, pollution, waste management.

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APA Shimba, M. J., Mkude, I. T., & Jonah, F. E. (2018). Impacts of waste on macroinvertebrate assemblages of Msimbazi River, Tanzania. International Journal of Biodiversity and Conservation, 10(2), 106-116.
Chicago Moses Joel Shimba, , Isabela Thomas Mkude and Fredrick Ekow Jonah. "Impacts of waste on macroinvertebrate assemblages of Msimbazi River, Tanzania." International Journal of Biodiversity and Conservation 10, no. 2 (2018): 106-116.
MLA Moses Joel Shimba, et al. "Impacts of waste on macroinvertebrate assemblages of Msimbazi River, Tanzania." International Journal of Biodiversity and Conservation 10.2 (2018): 106-116.

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