Population dynamics of freshwater oyster Etheria elliptica (Bivalvia: Etheriidae) in the Pendjari River (Benin-Western Africa)G.D. Akélé, H. Agadjihouèdé, G.A. Mensah and P.A. LalèyèKnowl. Managt. Aquatic Ecosyst., 416 (2015) 06DOI: https://doi.org/10.1051/kmae/2015002