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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/); hendra: Named for Hendra Tommy, (Kurnia Aquarium, Palangkaraya, Kalimantan Tengah, Borneo), who discovered and exported the species. Treated as a Latinised noun in apposition.
Eponymy: Hendra Tommy is the Indonesian owner-operator of Kurnia Aquarium and Pet Shop which collects, breeds and sells tropical fish domestically and abroad. [...] (Ref. 128868), visit book page.
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water benthopelagisch; pH range: 4.0 - ?. Tropical; ? - 29°C (Ref. 93322)
Asia: Sungai Sebangau drainage in Kalimantan Tengah, Borneo, Indonesia.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 4.2 cm SL mannelijk / geslacht onbekend; (Ref. 93322)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 1 - 2; Dorsale zachte stralen (totaal) : 9 - 12; Anale stekels: 2 - 3; Anale zachte stralen: 24 - 28. Belongs to the Betta coccina species group but can be distinguished from the remaining species of this clade by having bright, greenish-colored flanks and unpaired fins (vs. body blackish without iridescent scales, or greenish iridescent scales restricted to the lateral blotch or the central parts of the flanks). Diagnosed from its geographic neighbor species Betta uberis by having 10-12 dorsal-fin rays (vs. 14-17 in B. uberis) (Ref. 93322).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Found in peat swamps with depth of about 5 to 50 cm and with no water current. The water was shaded by trees and bushes. Collected among the aquatic and marsh plants. Forms bubble nest based on aquarium conditions (Ref. 93322).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
A bubble-nester based on aquarium observations (Ref. 93322).
Schindler, I. and H. Linke, 2013. Betta hendra - a new species of fighting fish (Teleostei: Osphronemidae) from Kalimantan Tengah (Borneo, Indonesia). Vertebrate Zoology 63(1):35-40. (Ref. 93322)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
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Estimates based on models
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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