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Anabantiformes (Gouramies, snakeheads) >
Osphronemidae (Gouramies) > Macropodusinae
Etymology: Betta: Malay/Javanese origin. Bleeker (1850, 1858) indicates Ikan Wadder Bettah as the local name of Betta trifasciata Bleeker, 1849 (now Betta picta, Valenciennes, 1846) in the Ambarawa Javanese dialect. Ikan Wader is a common Javanese name for smaller freshwater fishes, especially cyprinids (already used in Old Javanese). See Blust, R. & Trussel, S. Austronesian Comparative Dictionary. Web Edition (https://www.trussel2.com/acd/).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch; pH range: 5.8 - ?. Tropical
Asia: Sumatra, Indonesia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 5.7 cm SL mannelijk / geslacht onbekend; (Ref. 56386)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0 - 1; Dorsale zachte stralen (totaal) : 8 - 9; Anale stekels: 1 - 2; Anale zachte stralen: 26 - 27; Wervels: 31 - 32. Body depth at dorsal-fin origin 21.2-24.2% SL; anal-fin rays 27-29 (mode); lateral scales 32-33 (mode 33); thin dark blue edge on anal fin in male and female; predorsal length 65.0-67.1% SL; and head length 30.8-31.7% SL (Ref. 56386).
Facultative air-breathing (Ref. 126274); Inhabits freshwater swamp forest (Ref. 56386).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Tan, H.H. and P.K.L. Ng, 2005. The labyrinth fishes (Teleostei: Anabantoidei, Channoidei) of Sumatra, Indonesia. Raffles Bull. Zool. Supplement (13):115-138. (Ref. 56386)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00377 - 0.02651), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).