Conservation ActionsA local fisheries regulation (Qanun Laut Tawar 1999 No.5 Panda Aceh Tengah) prohibits the use of gill nets with mesh sizes smaller than 1.5 cm and fishing closer than 100 m to the lakeshore, but this is not enforced. No other conservation actions are currently in place.
It is recommended to create and implement a harvest management plan and a recovery plan for this species. Awareness raising within the local community is recommended. This is both with fishers to prevent overharvesting and farmers to lower the use of pesticides and chemical fertilisers. Further studies and monitoring are required to gain more insights on the population size and trend, to identify the proper conservation action, and to assess the harvest level trend.
Location InformationThe species is endemic to Lake Laut Tawar in Gayo highland, Aceh Province, north-western Sumatera, Indonesia (04°36'N 096°55'E). The lake is an old volcanic caldera with a maximum depth of 80 m, located approximately 1,200 m above sea level (Weber and de Beaufort 1916, Nontji 1991, Kartamihardja et al. 1995). Sampling in Aceh province by Muchlisin and Siti Azizah (2009) did not reveal the species anywhere else. Its extent of occurrence (EOO) is estimated at approximately 63 km2 (based on total area within a minimum convex polygon around sites where the species has been recorded and where some potential suitable localities may be located).