Critically Endangered
Betta fusca
Betta fusca
Betta fusca is a fighting fish in the family Osphronemidae (order Perciformes), recorded as Critically Endangered.
The fighting fish
The species reaches 8.2 cm (3.2 inches) in total length and is known to be a mouthbrooder and a facultative air-breather.
Wild bettas are small labyrinth fishes of peat swamps and forest pools in Southeast Asia, not the long-finned animals bred for tanks.
Gouramies and wild bettas breathe air with a labyrinth organ, so they can live in warm, oxygen-poor forest water.
Range and habitat
It is a freshwater fish native to Asia, where it occurs on the island of Sumatra in Indonesia.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
In crisis
Betta fusca is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Betta fusca — often a short stub, Wikidata item Q6431682. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
