Diversity of aquatic macroinvertebrates in relationship with the environmental factors of a lotic ecosystem in tropical region: the Sô river in South-East of Benin (West Africa) - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Entomology and Zoology Studies Année : 2017

Diversity of aquatic macroinvertebrates in relationship with the environmental factors of a lotic ecosystem in tropical region: the Sô river in South-East of Benin (West Africa)

Zinsou Cosme Koudenoukpo
  • Fonction : Auteur
Antoine Chikou
  • Fonction : Auteur
Ibrahim Imorou Toko
  • Fonction : Auteur
Sertge Hubert Zebaze Togouet
  • Fonction : Auteur
Rodrigue Hazoume
  • Fonction : Auteur

Résumé

The present study was aimed to study the diversity of aquatic macroinvertebrate populations in relation to the abiotic parameters of the Sô River. For this purpose, aquatic macroinvertebrates were sampled monthly between February 2016 and April 2017 on 12 sampling stations and in various habitats along the Sô River. Similarly, twenty environmental variables were measured to assess the environmental characteristics of Sô river. The recorded fauna consists of 2053 individuals corresponding to 44 families and 61 taxa belonging to three main zoological groups (Arthropods, Molluscs, Annelids). The stand population showed that Coleoptera (17.06%), Basomatophora (14.19%), Heteroptera (11.37%), Odonata (10.26%), Mesogasteropoda (9.01%) and Decapoda (9%) are the most abundant orders. Another oders constitute only a small fraction of the total fauna harvested. The redundancy analysis performed shows that abiotic parameters that strongly influence taxonomic diversity and taxon abundance are: current velocity, nitrogen and phosphorus compounds, mineralization parameters and canopy.
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Dates et versions

hal-02336603 , version 1 (29-10-2019)

Identifiants

  • HAL Id : hal-02336603 , version 1

Citer

Zinsou Cosme Koudenoukpo, Antoine Chikou, Ibrahim Imorou Toko, Sertge Hubert Zebaze Togouet, Siméon Tchakonté, et al.. Diversity of aquatic macroinvertebrates in relationship with the environmental factors of a lotic ecosystem in tropical region: the Sô river in South-East of Benin (West Africa). Journal of Entomology and Zoology Studies, 2017, 5, pp.1 - 10. ⟨hal-02336603⟩
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