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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Cynolebiinae
Etymology: Amatolebias: Named for Luis H. Amato (for his important contribution to the knowledge of the Rivulidae diversity of Uruguay, Paraguay and Brazil in Rio Grande do Sul); his last name and from the Greek 'lebias' (meaning small fish, commonly used to compose generic names of cyprinodontiform fishes); varzeae: Named after the river basin where it is collected, the rio da Várzea.
Eponymy: This is a toponym referring to the River Varzea, southern Brazil. (Ref. 128868), visit book page.
More on authors: Costa, Reis & Behr.

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

Freshwater; benthopelagic. Subtropical

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

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

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (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).

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

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

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)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Vulnerable (VU) (D2); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
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Swimming type
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Visual pigments
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Toxicity (LC50s)

Genetics
Genetics
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Estimates based on models

Phylogenetic diversity index (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).

Trophic level (Ref. 69278): 3.1 ±0.4 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).

Amatolebias varzeae (Costa, Reis & Behr, 2004)