Classificatie / Namen
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Garcialebias: Named for Dr Graciela García and the Greek, 'lebias'; nigrofasciatus: Name from the Latin nigrum for black and fasciatus meaning with stripes, in reference to the color pattern of the male specimens of this species (Ref. 44045).
More on authors: Costa & Cheffe.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch; standvastig. Tropical
South America: inner drainages between laguna dos Patos and lagoa Mirim, southern Brazil.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 5.8 cm TL mannelijk / geslacht onbekend; (Ref. 96654); max. gepubliceerd gewicht: 2.60 g (Ref. 96654)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 16 - 23; Anale stekels: 0; Anale zachte stralen: 18 - 26; Wervels: 27 - 30. Two apomorphic color patterns, body bright gray with dark gray to black stripes in males (versus light gray or no stripes) and a vertically paired black blotch on caudal peduncle of juveniles and females (versus small spots irregularly arranged, or a single round dorsally positioned spot, or no spots on caudal peduncle). Males with light blue stripes parallel to rays on the basal half of unpaired fins and a black blotch anteriorly bordered by a narrow blue line on posterior portion of dorsal and anal fins. Scales on longitudinal series 26-28, supraorbital neuromasts 16-19, pharyngobranchial teeth 2-5. Dorsal fin origin anterior to anal fin origin in females. Caudal fin rounded.
Body shape (shape guide): elongated.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Costa, W.J.E.M. and M.M. Cheffe, 2001. Three new annual fishes of the genus Austrolebias from the Laguna dos patos system, southern Brazil, and a rediscription of A. adloffi (AHL) (Cyprinodontiformes: rivulidae). Comun. Mus. Ciênc. Tecnol. PUCRS, Sér. Zool. Porto Alegre 14(2):179-200. (Ref. 44045)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00456 - 0.01448), b=3.21 (3.05 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (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.).
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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