Betta pulchra

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Betta pulchra Tan & Tan, 1996

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Betta pulchra
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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/).;  pulchra: The Latin pulcher means handsome, alluding to the beauty of this fish..

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water benthopelagisch; pH range: 3.9 - 4.2. Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Asia: restricted to Pontian, Johor, West Malaysia.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 5.6 cm SL mannelijk / geslacht onbekend; (Ref. 56613)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 1 - 2; Dorsale zachte stralen (totaal): 8-9; Anale stekels 1-2; Anale zachte stralen: 22 - 26; Wervels: 29. In comparison with other members of the B. pugnax species group, this can be differentiated by the following combination of characters: presence of chin-bar; absence of dark marks below postorbital stripe on opercle; presence of dorsal transverse bars; caudal transverse bars present only in male; greenish iridescent scales on opercle and body; anal fin with red subdistal border and black edge; caudal fin without distal dark edge; anal-fin rays 24-28 (mode 26); lateral scales 28-30 (mode 29); postdorsal scales 10-11 (mode 10); pelvic fin length 29.1-53.2% SL; head length 32.7-37.6% SL; inter-orbital width 34.3-41.8% HL (Ref. 56613).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Facultative air-breathing (Ref. 126274); Inhabits peat swamp forests (Ref. 84801). Occurs in blackwater habitats and commonly found only in the overgrown bank vegetation of the irrigation canals. Paternal Mouth brooder (Ref. 13220).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Exhibits paternal mouthbrooding habit.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Tan, H.H. and S.H. Tan, 1996. Redescription of the Malaysian fighting fish Betta pugnax (Teleostei: Belontiidae), and description of Betta pulchra, new species from Peninsular Malaysia. Raffles Bull. Zool. 44(2):419-434. (Ref. 13220)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Onvoldoende gegevens (DD) ; Date assessed: 17 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 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).
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).