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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.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: Indonesia.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 7.9 cm SL macho/indeterminado; (Ref. 30224)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 1; Raios dorsais (total) : 8; Espinhos anais: 2; Raios anais : 26 - 27; Vértebras: 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).
Facultative air-breathing (Ref. 126274); Occurs in forest streams with slow current and swamp forest, in shore vegetation and leaf litter (Ref. 56749).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
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)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Isca: usually
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (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).
Nível Trófico (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
