Fish Diversity of Four Waterways of Left Bank of Alima River in Boundji District, Congo Brazzaville
International Journal of Fisheries and Aquatic Studies 2020; 8(1): 99-109 E-ISSN: 2347-5129 P-ISSN: 2394-0506 (ICV-Poland) Impact Value: 5.62 Fish diversity of four waterways of left bank of Alima (GIF) Impact Factor: 0.549 IJFAS 2020; 8(1): 99-109 River in Boundji district, Congo Brazzaville © 2019 IJFAS www.fisheriesjournal.com Received: 16-11-2019 Isabelle Mady-Goma Dirat, Anthelme Tsoumou, Louis Regis Dossou- Accepted: 18-12-2019 Yovo, Léon Akoua, Marceline Mikia, Durelle Brith C, Olabi-Obath and Isabelle Mady-Goma Dirat Joseph Vouidibio Research Laboratory of Animal Biology and Ecology, ENS Marine N’ Gouabi University, Abstract Brazzaville, Congo The inventory of the ichthyo fauna of the Alima watershed was carried out in four rivers of Boundji district (Angouewele River, Engondo River, Andouwou River and Amegni River). Fishes were captured Anthelme Tsoumou with cast nets, gill nets, rotenone and drain fishing shows a species richness of 52 species, belonging to Research Laboratory of Animal 36 genus, 21 families and 10 orders. Three orders were more represented in all rivers: Siluriformes Biology and Ecology, ENS (31%), Osteoglossiformes (28%) and Characiformes (11.32%). Mormyridae (20.75%), Cichlidae Marine N’ Gouabi University, (9.48%) and Claroteidae (9.44%) were the most common families. The Mormyridae was the most Brazzaville, Congo diversified with 11 species. Angouewele, Amegni and Engondo have the most diversified and balanced populations with diversity index values between 3.24 and 3.96 and equitability between 0.71 and 0.81. Louis Regis Dossou-Yovo Andouwou on the other hand, was the least diversified with 2.97 and an equitability of 0.66.
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