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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
Écologie
; eau douce benthopélagique. Tropical
Asia: Malaysia.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 9.8 cm SL mâle / non sexé; (Ref. 13093)
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 8; Épines anales: 2; Rayons mous anaux: 29 - 30.
Facultative air-breathing (Ref. 126274); Inhabits well shaded peat forest blackwater streams with dense leaf litter beds, mud substrates and dense growths of roots. Also Ref. 84801.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Ng, P.K.L. and M. Kottelat, 1994. Revision of the Betta waseri species group (Teleostei: Belontiidae). Raffles Bull. Zool. 42(3):593-611. (Ref. 13093)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menacé (EN) (B1ab(iii)); Date assessed: 05 January 2019
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): 3.3 ±0.42 se; based on food items.
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).