List of Betta fish

March 2, 2022
Betta Fish and Mystery Snails
Species Authority: Tan & Kottelat, 1998 Taxonomic Source(s): Kottelat, M. 2013. The fishes of the inland waters of southeast Asia: a catalogue and core bibiography of the fishes known to occur in freshwaters, mangroves and estuaries. Raffles Bulletin of Zoology Supplement No. 27: 1-663. Red List Category & Criteria: Year Published: 2009 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) Justification:
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. 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. Current Population Trend: Decreasing Additional data: ♦ Population severely fragmented: No 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).
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