Evaluation by benthic macroinvertebrates of the state of health of some rivers in the south Cameroon region

Benthic macroinvertebrates are the best indicators of ecological quality watercourses because their specific diversity, sensitivity, variable life span and capacity to adapt all types environments. In order determine health status some rivers in Southern Cameroon Region, a study was conducted Kribi Ocean Department between February 2022 2023. Physicochemical analyses were carried out according conventional methods. Sampling benthic done using multihabitat approach. The results physicochemical parameters revealed that water courses well oxygenated, with slightly acidic pH little disturbances from anthropic activities. abundance showed 17055 individuals collected belonging 2 phyla, 3 classes, 19 orders, 59 families 113 genera. class Crustacea dominated 7693 or 45.10% relative abundance, followed by Gastropods 5174 30.33% Insects 4188 24.55% abundance. taxonomic coupled EPT, EPTD, EPTC EPTH indices, these is good quality.