Fish diversity and demographic parameters of the main fish species in the Samandeni reservoir, Burkina Faso.

Abstract

The management of the Samandeni fishery, Burkina Faso, built in 2017 requires, reliable information but as for now, they are missing, insufficient and fragmentary. This piece of work intends to analyse the fish community in terms of diversity, growth, and exploitability. To do so, fish were sampled between April 2018 and January 2019 with cast net and gillnets. The species were identified, and each fish weighed, and its total length measured. We recorded 40 species, regrouped in 29 genera and 14 families. The most represented families are the Cichlidae, Mormyridae and Mochokidae. Dominant species are Sarotherodon galilaeus Siluranodon auratus, Schilbe intermedius, Coptodon zillii et Oreochromis niloticus. The study suggests that fish and the aquatic ecosystem are in conditions. The results of this study will contribute to plan the management of the new fishery and provides basis to understand future changes.