Conservation Actions

There are no conservation actions in place for this species. This species is popular in the aquarium trade and this supply could play a role in the conservation of this species and its habitat (wild caught or aquaculture). Surveys are required to determine if this species is still extant.

Location Information

This species is known only from Lake Nenggwambu (Lake Kali Biru), a small (4-5 hectares) floodplain lake in the Grime River system, about 60 km west of the Papua provincial capital of Jayapura, Indonesia, and nearby Lake Tum (erroneously called Lake Jaigum) (G.R. Allen pers. comm. 2019). Other searches have not found populations elsewhere, but it is possible it occurs in other lakes.

Geographic Range

Possibly Extinct


Population Information

This species is likely to be extinct in Lake Nenggwambu (Lake Kali Biru) due to the presence of invasive tilapia and carp species. Individuals were collected from the lake in 2008 when the habitat was already heavily disturbed by carp. However, it is no longer possible to visit the lake as it is now fenced off with an aquaculture facility on the shoreline. No individuals were found in Lake Tum in 2015 or 2017, and it is also possibly extinct here (P. Unmack pers. comm. 2019).


Aquactulture and non-native species are the primary threats to this species (P. Unmack pers. comm. 2019). An expanding human population due to government transmigration policy has resulted in severe habitat alteration over much of the Grime River area (G.R. Allen pers. comm. 2019).

IUCN Red List Account Link

Please click here to see the species' IUCN Red List Account page.