Betta pinguis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Betta pinguis
Species Authority: Tan & Kottelat, 1998

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2ce ver 3.1
Year Published: 2009
Date Assessed: 2007-03-01
Assessor(s): Jenkins, A., Kullander, F.F. & Tan, H.H.
Reviewer(s): Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)
Assessed as Vulnerable due to an inferred population decline of greater than 30% over the past ten years. This is a result of habitat degradation and water pollution within the Kapuas River basin.

Geographic Range [top]

Range Description:This species is found in the middle Kapuas basin.
Indonesia (Kalimantan)
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population: The population is thought to be decreasing at a rate of more than 30% over the previous ten years, although detailed numbers are not known.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: B. pinguis is a benthopelagic species.
Systems: Freshwater

Threats [top]

Major Threat(s): In the last ten years, illegal gold mining in the Kapuas River basin has increased dramatically, and as a result, the Kapuas River is experiencing environmental problems due to poor mining practices. One of these problems is the increase of mercury pollution in the Kapuas River. So far, efforts to prevent water pollution and environmental destruction in the basin have failed, and the damage continues (Adijaya and Yamashita 2004).

In addition, freshwater habitats in Kalimantan are threatened by deforestation, conversion of land to agriculture, overfishing, the introduction of exotics and the aquaculture industry (WWF 2001).

Conservation Actions [top]

Conservation Actions: There are no conservation measures currently known to be in action at habitat or species level.

Bibliography [top]

Adijaya, M. and Yamashita, T. 2004. Mercury pollutant in Kapuas river basin: Current status and strategic approaches. Annals of Disaster Prevention Research. Institute 47(B): 635 - 640.

Froese, R. and Pauly, D. 2006. FishBase. Available at:

IUCN. 2009. IUCN Red List of Threatened Species (ver. 2009.2). Available at: (Accessed: 3 November 2009).

Tan, H.H. and Kottelat, M. 1998. Two new species of Betta (Teleostei: Osphronemidae) from the Kapuas Basin, Kalimantan Barat, Borneo. Raffles Bulletin of Zoology 46(1): 41-51.

WWF - World Wildlife Fund. 2001. Sundaland Rivers and Swamps. Available at: (Accessed: 25th January).

Citation: Jenkins, A., Kullander, F.F. & Tan, H.H. 2009. Betta pinguis. In: The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 27 March 2015.
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