Urgent surveys to determine population status, key threats, and conservation action for three fishes endemic to Lake Poso, Sulawesi, Indonesia

The challenge Lake Poso in Sulawesi is one of the world’s oldest lakes, a Key Biodiversity Area and an Alliance for Zero Extinction site. It supports a high degree of endemism of many freshwater species, including 10 endemic fish species, 3 of which are Critically Endangered (Possibly Extinct): Duck-billed Buntingi, Rosen’s Buntingi and Poso Bungu. The drastic declines of these three species are largely considered to be due to predation by alien fishes in the 1970s which have since become…