Fisheries management involves, among other things, knowledge of the actors and the catching gear used. These data are generally absent in the fisheries of Côte d'Ivoire. However, there is a strong fishing activity. To lead this study, surveys were conducted among fishermen and fishery administrators. The study of fishing activity in the area of Dioulabougou (Côte d’Ivoire, West Africa) in the district of Bouaflé done from November 2013 to February 2014 identified 88 fishermen. This population is composed of ivorians (39.77%) and foreigners (60.23%). The fishing activity is led by malians (Bambara ethnic group): 34.1%. Baoulé ethnic group (29.54% of ivorian fishermen) is the greatest ethnic group of ivorians. Two categories of fishermen stand in the fishing activity. We registered professional fishermen whose job is only fishing (84.1%) and professionals with another activity (4.5%). The fishing activity in Dioulabougou is dominated by adult aged more than 45 years (48%). Fishermen are predominantly illiterate at 42.04%. The fishing techniques used at Dioulabougou are conical fishing baskets (mesh and trunk of ronier), bamboo-traps, gillnets, bottom lines and shore seines. The illiterate situation of fishermen isa serious matter for sustainable management on fish’s resources.
La connaissance de la faune ichtyologique des eaux ivoiriennes préoccupe à la fois les scientifiques et les responsables de développement du secteur de la pêche. En effet, l’intensification croissante de l’exploitation des ressources halieutiques en milieu continental fait planer de réels risques de régression et de disparition des espèces.Cette étude vise à caractériser la variation spatio-temporelle de la fauneichtyologique et d’identifier les indices biologiques qui déterminent la distribution des espèces de poissons et l’état d’exploitation de ces poissons dans le fleuve Bandama.Les poissons ont été échantillonnés de juillet 2019 à juin 2020 à partir des captures des pêcheurs locaux. Chaque spécimen identifié, est pesé et mesuré.L’analyse spatio-temporelle a indiqué une variation non significative (p > 0,05) de la faune ichtyologique et des indices de diversité H’ et E. Néanmoins, L’analyse de la structure du peuplement (H’ de 2,09 à 2,34; E de 0,83 à 0,85) a révélé un milieu fluvial assez diversifié. Il est dominé par les Cichlidae et Cyprinidae au niveau des familles et Labeo coubie, Coptodon zillii et Chrysichthys nigrodigitatus au niveau des espèces quel que soit le site de pêche. Ce peuplement est composé majoritairement de spécimens juvéniles. Les résultats de ce travail constituent une étude de base pour les gouvernants dans la mise en place de plan de gestion durable des ressources halieutiques en milieu continental.L’essentiel de la production du fleuve Bandama est fourni par les Cichlidae et dans la localité de Tiassalé. Néanmoins, les indices de diversité calculés montrent une ichtyofaune diversifiée. Cette ichtyofaune est dominée par des juvéniles. Knowledge of the ichthyological fauna of Ivorian waters is of concern to both scientists and those responsible for the development of the fishing sector. In fact, the increasing intensification of the exploitation of fishery resources in the continental environment poses real risks of regression and disappearance of species.This study aims to characterize the spatio-temporal variation of the ichthyological fauna and to identify the biological indices which determine the distribution of fish species and the state of exploitation of these fish in the Bandama River.The fish were sampled from July 2019 to June 2020 from the catches of local fishermen. Each identified specimen is weighed and measured.The spatio-temporal analysis indicated a non-significant variation (p> 0.05) in the ichthyological fauna and the indices of diversity H 'and E. Nevertheless, the analysis of the structure of the stand (H' of 2.09 at 2.34; E from 0.83 to 0.85) revealed a fairly diverse fluvial environment. It is dominated by Cichlidae and Cyprinidae at family level and Labeo coubie, Coptodon zillii and Chrysichthys nigrodigitatus at species level regardless of the fishing site. This stand is mainly composed of juvenile specimens. The results of this work constitute a basic study for those in charge in the establishment of a plan for the sustainable management of fishery resources in the continental environment.Most of the production of the Bandama River is supplied by the Cichlidae and in the locality of Tiassalé. Nevertheless, the calculated diversity indices show a diversified ichthyofauna. This ichthyofauna is dominated by juveniles.
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