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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/).
More on authors: Tan & Kottelat.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
Asia: Indonesia.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 7.9 cm SL mâle / non sexé; (Ref. 30224)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 8; Épines anales: 2; Rayons mous anaux: 26 - 27; Vertèbres: 31 - 32. Fewer total anal rays than B. balunga (28-29 versus 30). More lateral scales than B. balunga and B. chini (31 1/2-32 1/2 versus 29-31). More lateral scales below dorsal-fin origin (18-19, versus 15-18). Greater total length than B. balunga and B. chini (145.5-153.5% SL, versus 132.8-144.6). Shorter head length than B. balunga (31.3-31.7% SL versus 32.6-35.5). Deeper body depth at dorsal-fin origin than B. akarensis and B. chini (30.6-31.6% SL versus 25.1-30.9). Shorter preanal length than B. balunga (44.7-46.3% SL versus 49.2-52.2). It has the most pigmented opercle pattern with a darkly pigmented opercle distal edge and many spots (more than 7 versus 5 or less, or stripes) (Ref. 30224).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Occurs in forest streams with slow current and swamp forest, in shore vegetation and leaf litter (Ref. 56749).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Tan, H.H. and M. Kottelat, 1998. Two new species of Betta (Teleostei: Osphronemidae) from the Kapuas Basin, Kalimantan Barat, Borneo. Raffles Bull. Zool. 46(1):41-51. (Ref. 30224)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Appât: usually
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00977 (0.00360 - 0.02649), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |