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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Cynolebiinae
Etymology: Austrolebias: Composed from Austro = the south + see under Lebias; varzeae: Named after the river basin where it is collected, the rio da Várzea..
More on authors: Costa, Reis & Behr.

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

; zoet water benthopelagisch. Subtropical

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South America: known only from upper rio Uruguay basin in Brazil.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 3.4 cm SL mannelijk / geslacht onbekend; (Ref. 54764)

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Wervels: 27 - 28. Easily distinguished from all congeners by having a unique color pattern of male, consisting of dark gray bars on flank, the three anteriormost bars distinctively darker and narrower than posterior ones. Differs from A. carvalhoi by having more anal-fin rays in male (23-26 vs. 21-22), longer anal-fin base length (38.1-40.9% SL vs. 31.4-35.1% SL) and more caudal-fin rays (28-29 vs. 25-26). Urogenital papilla of male not attached to anal fin, pelvic fins not united medially, 22-24 dorsal-fin rays in male and 16-18 in female, 18-19 anal-fin rays in female and 28-30 scales in the longitudinal series (Ref. 54764).

The type specimens were collected in a temporary lagoon with shallow water (maximum depth about 1.5 m) and vegetation composed mainly of grasses, Nymphaea sp., Lutwigia sp., and a large volume of filamentous algae (Ref. 54764).

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Hoofdreferentie Upload your references | Referenties | Coördinator : Costa, Wilson J.E.M. | Medewerkers

Costa, W.J.E.M., R.E. Reis and E.R. Behr, 2004. Austrolebias varzeae, a new annual fish from the upper rio Uruguay basin, southern Brazil (Cyprinodontiformes: Rivulidae). Neotrop. Ichthyol. 2(1):13-17. (Ref. 54764)

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

Kwetsbaar, zie IUCN Rode Lijst (VU) (D2); Date assessed: 07 November 2018

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 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.1 ±0.3 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).

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Austrolebias varzeae Costa, Reis & Behr, 2004