Assessment of the water quality of the upper reaches of the ouémé river in benin using benthic macroinvertebrate-based biotic indices - Abahi, Koudjodé ; Gouissi, Modeste ; Akodogbo, Hotèkpo ; Sanni Worogo, Sorébou ; Adje, Ayodélé Shola ; Gnohossou, Pierre (Revue des Sciences de l’Eau / Journal of Water Science, 2020)