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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/).; ferox: Name from Latin 'ferox' meaning wild, bold, courageous, fierce; refers to the behaviour of the of the 'fighting fish' (Ref. 78499).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Tropical
Asia: Thailand.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.3 cm SL con đực/không giới tính; (Ref. 78499)
Các tia vây lưng cứng (tổng cộng) : 1; Các vây lưng mềm (tổng cộng) : 8 - 9; Tia cứng vây hậu môn: 1 - 2; Tia mềm vây hậu môn: 24 - 26. This species is a member of the Betta pugnax group with the following characters: a comparatively deep-bodied species, body depth at dorsal-fin base 31.4-35.0 % of SL; differs from its congeners in having a head length of 30.0-33.6% of SL, caudal fin with transverse bars, presence of chin-bar and second postorbital stripe, A 26, lateral scales 29-31 (mode 30), lanceolate caudal fin, absence of a broad dark marginal band on anal or caudal fin (Ref. 78499).
Facultative air-breathing (Ref. 126274); The type locality was described as a small river with current (0.4 m/s); ground formed by
gravel and in parts by sand. The fighting fishes were found at the banks, slower current , between roots and plants (Araceae). Water data as described: pH 5.8-6.3, 30-52 µS/cm, 23.3-
24.2 °C. Type specimens in February 2005 with pH 6.3, electric conductivity 51 µS/cm and water-temperature 25.5 °C (Ref. 78499).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Schindler, I. and J. Schmidt, 2006. Review of the mouthbrooding Betta (Teleostei, Osphronemidae) from Thailand, with descriptions of two new species. Zeitschrift für Fischkunde 8(1/2):47-69. (Ref. 78499)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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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).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
