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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Cynolebiinae
Etymology: Austrolebias: Composed from Austro = the south + see under Lebias; queguay: Named fro its type locality, the Queguay river basin; noun in apposition..

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Uruguay.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref. 119404); 4.0 cm SL (female)

Short description Morphology | Morphometrics

This species differs from all its congeners except Austrolebias bellottii, A. univentripinnis, A. melanoorus, by the having the urogenital papilla attached to the anal fin in males (vs. free from the anal fin); differs from A. bellottii, A. univentripinnis by having well-defined light blue bands contrasting with the sides of the body in adult males (vs. vertical rows of light blue dots); differs from A. melanoorus by the dark gray colouration of the distal portion of the anal fin in males (vs. black), pelvic-fins dark bluish green (observed in ventral view) and bases united at about 50-80% on their medial margins (vs. dark gray and united about 50% or less), pectoral-fins with iridescent blue sub-marginal band (vs. no sub-marginal band), and general colouration of the body bluish green (vs. grayish sky blue) (Ref. 119404).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Costa, Wilson J.E.M. | Collaborators

Serra, W.S. and M. Loureiro, 2018. Austrolebias queguay (Cyprinodontiformes, Rivulidae), a new species of annual killifish endemic to the lower Uruguay river basin. Zoosyst. Evol. 94(2):547-556. (Ref. 119404)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (B1ab(iii)); Date assessed: 17 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

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Common names
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Eggs
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Age/Size
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Length-weight
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.3 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Austrolebias queguay Serra & Loureiro, 2018