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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/); obscura: From the Latin obscurus, meaning indistinct and inconspicuous, referring to the fish in general.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: currently known only from Barito basin in Kalimantan Tengah, Indonesia.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 6.9 cm SL macho/indeterminado; (Ref. 56613)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0 - 2; Raios dorsais moles (total) : 8 - 9; Espinhos anais: 2 - 3; Raios anais moles: 24 - 27. Opercle with second postorbital stripe. Anal-fin rays 26-29 (mode 28). Subdorsal scales 5 1/2 - 7 (mode 6 1/2). Lateral scales 28-30 (mode 29). Predorsal scales 19-21 (mode 20); postdorsal scales 10-11 (mode 11). Preanal length 46.1-50.7% SL. Head length 30.9-35.4% SL. Length of anal-fin base 51.3-56.4% SL (Ref. 56613 ).
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da 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 (0.00377 - 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).
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).