Despite its diverse habitat preferences, one of the major threats to the survival of this species is the loss of suitable habitat. Construction of large-scale hydroelectric projects, as well as land clearance for settlement and agriculture have been major influences on this otter's decline, as has habitat degradation as a result of water pollution from pesticides and fertilisers. Poaching is known to occur primarily in India, Nepal and Bangladesh (1).
Whilst the smooth-coated otter occurs in many national parks, particularly in Indonesia where there is no other form of protection, enforcement of the security these areas should offer is usually poor. Several surveying projects have been put into practice to establish the range and ecology of this species (4).