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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in April 2026 (Volume 30, Issue 1) Submit manuscript

Influence of granulometry on the distribution of benthic macro invertebrates in some streams of the Mvilla and Haut-Nyong watersheds in Cameroon

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  • Influence of granulometry on the distribution of benthic macro invertebrates in some streams of the Mvilla and Haut-Nyong watersheds in Cameroon

Donald-l’or NYAME MBIA 1, *, Samuel FOTO MENBOHAN 1, Serge Roger GWOS NHIOMOCK 1, Mathias NWAHA 1, Yvonne Laure TCHOUAPI 1, Wilfried Christiane Noel BETSI 1, Blaise Rollinat MBOYE 3 and Eric Belmond BIRAM À NGON 2

1 Laboratory of Hydrobiology and Environment (LHE), Faculty of Sciences, University of Yaounde I, P. O. Box: 812 Yaounde– Cameroon.
2 Hydrological Research Center, Institute of Geological and Mining Research. P. O. Box: 4110 Yaounde–Cameroon.
3 Laboratory of Hydrobiology and Ichthyology, Institute of Agronomic and Forestry Research, P. O. Box: 2246 Libreville, Gabon.
 
Research Article
World Journal of Advanced Research and Reviews, 2023, 17(02), 658-677
Article DOI: 10.30574/wjarr.2023.17.2.0278
DOI url: https://doi.org/10.30574/wjarr.2023.17.2.0278
 
Received on 05 January 2023; revised on 14 February 2023; accepted on 17 February 2023
 
This study was conducted from November 2018 to October 2019 in 8 forested streams in the Haut-Nyong and Mvilla watersheds to determine the influence of substrates granulometry on benthic macroinvertebrates. The physicochemical analyses showed highly oxygenated, weakly mineralized and slightly acidic waters. The granulometric analyses reveal 9 categories of substrates depending on the scale of sand, sand+gravel or sand+mud. Sampling of benthic macroinvertebrates allowed the collection of 15058 organisms divided into 5 classes, 14 orders and 49 families. The results showed a taxonomic richness strongly influenced by the nature of the substrate. The combination of coarse sand + silt + dead leaves was more favored the development of benthic macroinvertebrates with 48 families. The taxonomic richness associated to the different index revealed good ecological quality of Sounou, Bengo'o and Lo'o rivers.
 
Substrates; Benthic macroinvertebrates; Ecological quality; Diversity; Mvilla watershed; Haut-Nyong watershed
 
https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2023-0278.pdf

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Donald-l’or NYAME MBIA, Samuel FOTO MENBOHAN, Serge Roger GWOS NHIOMOCK, Mathias NWAHA, Yvonne Laure TCHOUAPI, Wilfried Christiane Noel BETSI, Blaise Rollinat MBOYE and Eric Belmond BIRAM À NGON. Influence of granulometry on the distribution of benthic macro invertebrates in some streams of the Mvilla and Haut-Nyong watersheds in Cameroon. World Journal of Advanced Research and Reviews, 2023, 17(2), 658-677. Article DOI: https://doi.org/10.30574/wjarr.2023.17.2.0278

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