Betta rutilans
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Betta rutilans faces severe threats from rapid deforestation and agricultural expansion across its limited range in Kalimantan, Borneo. Palm oil plantations and logging operations have destroyed much of the peat swamp forest habitat this species depends on. Water pollution from agricultural runoff and mining activities further degrades the acidic, tannin-rich waters essential for its survival. The species' extremely restricted distribution makes it particularly vulnerable to local habitat destruction.
Habitat
Betta rutilans inhabits shallow, acidic peat swamp forests and associated blackwater streams in Kalimantan, Borneo. These fish prefer slow-moving or stagnant waters with dense vegetation, fallen logs, and leaf litter that create the dark, tannin-rich conditions typical of tropical peat swamp ecosystems.
