Classificatie / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Austrolebias: Composed from Austro = the south + see under Lebias; bagual: Bagual refers to an expression used by the Brazilian gaúcho (people living in Rio Grande do Sul State), means a non castrated horse as well as a synonym for being brave, courageous, fearless and audacious; refers to the species having unique adaptations for living in an extreme environment (pond dries up completely during some months of the year) and have been discovered in a remote and isolated area. A name in apposition (Ref. 118216).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch; pH range: ? - 5.2. Subtropical
South America: Currently known only for type locality, in the Encruzilhada do Sul municipality, from a small temporary pond at an altitude of 46 m; associated with the floodplain of the Arroio Abranjo, in the middle course of the Rio Camaquã basin, Laguna dos Patos system, in flat areas surrounded by hills in geomorphological units of the Crystalline Shield of the Rio Grande do Sul State (Ref. 118216).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 3.9 cm SL mannelijk / geslacht onbekend; (Ref. 118216)
Korte beschrijving
Morfologie | Morfometrie
Dorsale zachte stralen (totaal): 15-23; Anale zachte stralen: 17 - 25; Wervels: 28 - 29. Diagnosis: Austrolebias bagual differs from all other species of Austrolebias by the unique colour pattern on the body and dorsal fin in males; usually consists of an overall light brown to dark brown coloration with 3-6 dark grey, narrow vertical bars, bars becoming gradually shorter and fainter towards caudal peduncle (vs. never similar colour patterns); dorsal fin light bluish-green, with 5-7 black vertical bars extending from the base to the medial portion of the fin (vs. absence of a such pattern in the remaining Austrolebias; females lack the pair of black spots arranged vertically in close proximity on the posterior portion of the caudal peduncle, sometimes coalescing to form an 8-shaped blotch, typical of most of the A. adloffi species group (except A. arachan and A. viarius) (Ref. 118216).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Volcan, M.V., L.E.K. Lanés and A.C. Gonçalves, 2014. Austrolebias bagual, a new species of annual fish (Cyprinodontiformes: Rivulidae) from southern Brazil. aqua, Int. J. Ichthyol. 20(4):161-172. (Ref. 118216)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
Lokale namenSynoniemenMetabolismePredatorenEcotoxicologieVoortplantingMaturiteitPaaienPaaiaggregatiesFecunditeitEierenOntwikkeling van de eieren
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantieBRUVS
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingNutrientsMassaconversie
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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 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-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).
