Classification / Names
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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/); stiktos: From the Greek noun stiktos meaning dappled, spotted, in reference to the rows of diagnostic round spots on the dorsal fin.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
Asia: Mekong drainage in Cambodia.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL hane/ej könsbestämd; (Ref. 56613)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 10 - 11; Mjukstrålar i analfenan: 27 - 29. Diagnosed from other members of the Betta splendens group by the following combination of characters: up to 5 rows of black rounded marks on interradial membranes of dorsal fin; up to 9 rows of transverse black bars on caudal fin; up to 7 vertical rows of dark marks on posterior edge of scale on body; lateral scales 33-34 (mode 33), predorsal scales 24-25 (mode 25); postdorsal length 17.5-20.1% SL; body depth 26.2-27.7% SL; caudal peduncle depth 15.4-17.4% SL; length of dorsal-fin base 15.2-15.6% SL; orbit diameter 27.7-29.7% HL; postorbital length 45.9-50.0% HL; interorbital width 26.4-31.6% HL (Ref. 56613).
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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 (0.00377 - 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).
Trofisk nivå (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).