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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/).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
Asia: Pulau Bintan, Riau Archipelago, Indonesia.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 2.4 cm SL maschio/sesso non determinato; (Ref. 12802)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 1; Raggi dorsali molli (totale) : 9 - 10; Spine anali: 2; Raggi anali molli: 25 - 26. Distinguished from Betta burdigala in the following characters: body black in color (vs. red); no iridescent green spots on median fins (vs. presence); fewer dorsal fin rays (10-11 vs. 14-15); fewer subdorsal scales (8 vs. 11-11 1/2); more anal fin rays (27-28 vs. 24-26); more predorsal scales (18 vs. 15-16); smaller dorsal fin base length (16.0-24.6% SL vs. 26.8-28.6); smaller postdorsal length (12.3-13.3% SL vs. 16.7-17.4); greater predorsal length (56.2-65.4% SL vs. 52.8-54.9); and smaller preanal length (37.9-42.6% SL vs. 42.5-45.5). Can be differentiated from Betta coccina in the following characters: absence of lateral iridescent blotch (vs. presence); body black in color (vs. red); white pelvic fin tip (vs. black); absence of iridescent green spots on median fins (vs. presence); smaller postorbital length (12.3-13.3% SL vs. 14.3-15.5); and greater pelvic fin length (8.7-12.0% SL vs. 7.8-8.8) (Ref. 56386).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Occurs in shaded, acidic waters in a swamp forest, with leaf litter and soft mud substrate.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Tan, H.H. and S.H. Tan, 1994. Betta miniopinna, a new species of fighting fish from Pulau Bintan, Riau Archipelago, Indonesia (Teleostei: Belontiidae). Ichthyol. Explor. Freshwat. 5(1):41-44. (Ref. 12802)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
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): 3.1 ±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).
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