>
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 author: Regan.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico; pH range: 5.5 - 6.8; dH range: ? - 12. Tropical; 21°C - 27°C (Ref. 2059)
Asia: Borneo.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 14.0 cm TL maschio/sesso non determinato; (Ref. 7050)
Spine dorsali (totale) : 1; Raggi dorsali molli (totale) : 7 - 8; Spine anali: 1 - 2; Raggi anali molli: 26 - 28; Vertebre: 31 - 32. Differs from other members of the species group by the following combination of characters: opercle with uninterrupted second postorbital stripe; yellow eye when live; anal fin rays 28-30 (mode 28); subdorsal scales 5-6 (mode 5); lateral scales 31-33 (mode 32); predorsal scales 22-25 (mode 23); postdorsal scales 10-12 (mode 11); preanal length 43.4-48.5% SL; head length 29.8-34.9% SL; anal fin base length 49.6-56.8% SL (Ref. 55025).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Occurs in habitats ranging from peat swamp forest to acid water swamp forest (Ref. 55025). Normally found in a more stagnant sections of streams among the submerged leaf litter and overhanging bank vegetation (Ref. 55025). Mouth brooder (Ref. 55025)
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
A paternal mouth brooder, exhibiting the typical egg exchange between female and male. After the nuptial embrace, the female picks up the fertilized egg from the male's curved body, proceeds to transfer the eggs to the male for oral brooding by spitting out the eggs and the male gulps the eggs into its buccal sac. Male sometimes rejects the eggs, but the female continues spitting and gulping the eggs until the male finally accepts. This process continues until all the fertilized eggs have been transferred, then another bout of egg laying occurs with the whole procedure repeated.
Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Acquario: Commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00374 - 0.02675), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
🛈
