Spatial and seasonal variation of ichtyofauna in the littoral zone of Lake Buyo (South-west Côte d’Ivoire) using video surveillance
Paper Details
Spatial and seasonal variation of ichtyofauna in the littoral zone of Lake Buyo (South-west Côte d’Ivoire) using video surveillance
Abstract
Video surveillance techniques are increasingly being used for aquatic research purposes because they are non-extractive and cause less disturbance to fish habitats. The aim is to use video surveillance as a sampling method to inventory fish in the littoral zones of Lake Buyo. Six baited cameras were used to sample the fish. Analysis of the video recordings enabled 18 species of fish to be identified, divided into 13 genera, 9 families and 7 orders. The best represented families were the Cyprinidae with 2102 individuals, the Cichlidae (1892 individuals) and the Alestidae (1772 individuals). Enteromius macrops (2057 individuals), Coptodon zillii (1387 individuals), Brycinus macrolepidotus (858 individuals), Brycinus longipinnis (831 individuals) and Oreochromis niloticus (469 individuals) were the most abundant species. Depending on the hydrological season, significant differences in species richness were observed between high water and low water seasons at all the stations. Analysis of the structure of the fish assemblages revealed a environment was more diverse and stable during periods of high water than during periods of low water. The use of video surveillance as a sampling method thus represents a important alternative for the collection of ichthyological data.
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Abo Kouakou Jean-Baptiste, Monney Attoubé Ida, Aliko N’Guessan Gustave, N’Dri Olga Rosemonde, Koné Tidiani (2024), Spatial and seasonal variation of ichtyofauna in the littoral zone of Lake Buyo (South-west Côte d’Ivoire) using video surveillance; JBES, V25, N1, July, P155-163
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