Assessment of aquatic insect species composition, abundance and diversity within two dam lake in Korhogo: Koko and Natiokobadara (Northern Côte d’Ivoire)

Abstract

A study had conducted to contribute to the knowledge of aquatic insects in two artificial lakes in the northern region of Cote d’Ivoire. Aquatic insect were collected monthly from January 2020 to March 2020 using a kick-net. Abiotic variables such as transparency, temperature, pH, dissolved oxygen and conductivity were measured in situ. Water samples were collected and conducted to the laboratory for inorganic nutrients analysis. A total of 6 orders, 23 families and 55 taxa have been recorded. The taxonomic richness of the aquatic insects was dominated by Heteroptera, Odonata, Coleoptera and Diptera. The richness and abundance were highest at the Natiokobadara 1 site. Shannon’s index and evenness were higher at the Koko 3 site. A canonical correspondence analysis was used to visualize the influence of environmental parameters on the structure of aquatic insect community.