Teleostei (teleosts) >
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
Ecology
Freshwater; benthopelagic. Tropical
Asia: Indonesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm TL male/unsexed; (Ref. 7050)
Dorsal spines (total): 0 - 2; Dorsal soft rays (total): 7 - 8; Anal spines: 2 - 3; Anal soft rays: 24 - 26; Vertebrae: 28 - 29. Body with 5-7 irregular dark vertical bars; opercle with a pair of vertical parallel reddish bars; presence of broad chin-bar, merging with anterior part of second postorbital stripe, forming a triangular dark mark below eye; anal-fin rays 27-29; lateral scales 28 1/2-30; total length 131.6-142.3% SL; caudal peduncle depth 13.1-16.3% SL; body depth at dorsal-fin origin 23.2-27.1% SL; pelvic fin length 28.1-38.4% SL; dorsal-fin base length 9.6-12.5% SL; interorbital width 6.3-9.9% SL (Ref. 56386).
Facultative air-breathing (Ref. 126274); Found in peat swamps (Ref. 93059). Bubble nest builder (Ref. 4537).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (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).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
