The diversity of life in African freshwaters: under water, under threat. An analysis of the status and distribution of freshwater species throughout Mainland Africa

animal aquatique aquatic animals aquatic plants biodiversidad biodiversity cangrejo de mar conservation de la nature crabe crabs development policies endangered species freshwater fishes freshwater molluscs geographical distribution mollusque d'eau douce moluscos de agua dulce monitoring nature conservation odonata peces de agua dulce plante aquatique poisson d'eau douce stock assessment surveillance vigilancia