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Cypriniformes (Carps) >
Danionidae (Danios) > Danioninae
Etymology: Devario: Bangla/Bengali:‘debari’, local name for these fishes; also meaning ‘brother in law’ (Ref. 2031); micronema: Named for Natalie Ann Ratnaweera, a wildlife enthusiast..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
Asia: Sri Lanka.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 7.4 cm SL mannelijk / geslacht onbekend; (Ref. 118056)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 13 - 14; Anale zachte stralen: 15 - 17; Wervels: 35. Devario micronema differs from all its congeners by the combination of the following characters: body depth 29-30 %SL; snout length equal to or greater than eye diameter; anterior half of body consisting of 3-5 irregular, vertical bars; P stripe broader than P+1 and P-1 stripes; 14-17 predorsal scales; dorsal fin with 10-11 branched rays; anal fin with 12½-14½ branched rays; a prominent, square-shaped process on posterior edge of first infraorbital; presence of danionin notch; origin of dorsal fin to hypural distance, when carried forward, reaching to reaching posterior border of eye; pectoral fin, adpressed, just reaching origin of pelvic fin (Ref. 118056).
Found mainly in well-shaded areas of shallow, slow-flowing streams (Ref. 118056).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Sudasinghe, H., R. Pethiyagoda and M. Meegaskumbura, 2020. Evolution of Sri Lanka’s giant danios (Teleostei: Cyprinidae: Devario): teasing apart species in a recent diversification. Molecular Phylogenetics and Evolution v. 149 (art. 106853): 1-15. (Ref. 127711)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Bedreigd (EN) (B1ab(iii)+2ab(iii)); Date assessed: 06 August 2019
Gevaar voor de mens
Harmless
Gebruik door de mens
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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=0.00891 (0.00371 - 0.02139), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.0 ±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).
