International Journal of Biology Research

International Journal of Biology Research


ISSN: 2455-6548

Vol. 4, Issue 1 (2019)

Inventory, biodiversity of benthic macro invertebrates and evaluation of water biological quality of the Drader river (Morocco)

Author(s): El Mahdi Hbaiz, Rachid Fathallah, Hajar Hmima, Mohamed Fadli
Abstract: The present study focuses on the assessment of the biological quality of Drader river waters, the main watercourse of the Drader-Souier basin located in northwestern Morocco. The study focused on carrying out the benthic macro invertebrate inventory from three stations and the calculation of biotic indices: Shannon and Weaver diversity index and the Belgian Biotic Index. The analysis of the results makes it possible to distinguish:
  • An upper (temporary) watercourse, characterized by a rich and diversified fauna attesting to the excellent quality of the water of this section.
  • Permanent middle and lower watercourses with a significant decrease in biodiversity that can be attributed to intensive agricultural activity in this area and the nature of the substrate and habitat.
Pages: 23-26  |  228 Views  88 Downloads
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