>
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: Kottelat & Ng.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: presently known only from Banka, Indonesia.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 4.5 cm SL macho/indeterminado; (Ref. 12803)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 2; Raios dorsais moles (total) : 8 - 9; Espinhos anais: 2 - 4; Raios anais moles: 23 - 25. Distinguished from other members from Sumatra, Indonesia in the following characters: more anal fin rays (27 vs. 23-25); more dorsal fin rays than Betta cracens and Betta fusca (10-11 vs. 8-9); more subdorsal scales than Betta cracens and B. fusca (6 1/2-7 vs. 5 1/2-6); more lateral scales than B. fusca (31 vs. 29); fewer lateral scales than Betta cracens (31 vs. 32-33); fewer predorsal scales than Betta cracens, Betta fusca and Betta raja (17-19 vs. 20-24); greater head length than Betta pugnax, Betta cracens and Betta fusca (35-.5-36.5% SL vs. 27.5-35.2); smaller predorsal length than Betta fusca (62.7-66.3% SL vs. 68.5-70.2); greater preanal length than Betta cracens (47.8-50.9% SL vs. 42.0-46.1); greater body depth than Betta cracens (26.7-27.6% SL vs. 21.2-24.2); greater dorsal fin base length than Betta cracens (12.4-13.9% SL vs. 10.5-11.6); smaller anal fin base length than Betta cracens (50.4-52.0% SL vs. 53.4-55.7); greater orbital diameter than Betta cracens and Betta fusca (61-76% postorbital length vs. 47-58) (Ref. 56386).
Facultative air-breathing (Ref. 126274); Found in forest swamp, peat swamp and hill stream.
Life cycle and mating behavior
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Kottelat, M. and P.K.L. Ng, 1994. Diagnoses of five new species of fighting fishes from Banka and Borneo (Teleostei: Belontiidae). Ichthyol. Explor. Freshwat. 5(1):65-78. (Ref. 12803)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
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 (0.00376 - 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): 3.2 ±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).
