Major areas of inland water fish diversity

This map represents an informal synthesis of documented expert opinion on globally important areas for freshwater fish diversity, taking into account species richness and endemism. Two categories are shown: discrete areas and systems known to be of high diversity, and areas where diversity is globally important but less concentrated.
Source: compiled with the help of members of IUCN/SSC Specialist Groups and other ichthyologists; first published in WCMC.
WCMC. 1998. Freshwater biodiversity: a preliminary global assessment. WCMC Biodiversity Series No. 8. World Conservation Press, Cambridge.