Classification / Names
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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/).; lehi: Named for Charles M.U. Leh, curator of Zoology at the Sarawak Museum, in recognition of his kind help..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; pH range: 6.8 - ?. Tropical
Asia: restricted to the area southwest of Kuching, Malaysia and in the lower Kapuas basin in Kalimantan Barat, Indonesia.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 6.1 cm SL mâle / non sexé; (Ref. 56613)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 8 - 10; Épines anales: 2; Rayons mous anaux: 23 - 27; Vertèbres: 28 - 30. Chin bar absent. Dorsal fin transverse bars present. No Caudal fin transverse bars. Green iridescent scales on opercle and body. Anal fin with iridescent light blue distal border. Two black marks below postorbital stripe on opercle of female and juvenile. Anal-fin rays 25-29 (mode 28). Lateral scales 28-30 (mode 29). Postdorsal scales 10-11 (mode 11). Pelvic fin length 34.8-50.6% SL. Head length 33.4-36.8% SL. Interorbital width 31.7-37.4% HL (Ref. 56613).
Facultative air-breathing (Ref. 126274); Found in peat swamp forests and acid water swamp forests. Occurs in quiets parts of streams among overgrown submerged bank vegetation (Ref. 56613).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Tan, H.H. and P.K.L. Ng, 2005. The fighting fishes (Teleostei: Osphronemidae: Genus Betta) of Singapore, Malaysia and Brunei. Raffles Bull. Zool. Supplement (13):43-99. (Ref. 56613)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
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 (0.00376 - 0.02663), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).