Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Anablepidae (Four-eyed fishes, onesided livebearers & white-eye) > Anablepinae
Etymology: Anableps: Greek, ana = up + Greek, blepo, blepsis, -eos = glance, sight (Ref. 45335).
More on authors: Müller & Troschel.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; demersal; non-migratory. Tropical; 13°N - 35°S
Central and South America: Trinidad and Venezuela to the Amazon delta in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.0 cm TL male/unsexed; (Ref. 35237); common length : 15.0 cm TL male/unsexed; (Ref. 5217); max. published weight: 500.00 g (Ref. 35237)
Gregarious but occurs in more restricted schools of about a dozen individuals. May occur singly or as a couple (Ref. 35237). Mainly found in freshwater (Ref. 9589) and brackish estuaries near river mouths (Ref. 5217). Occasionally marketed in the aquarium trade (Ref. 9589). Used in eye research because of its divided cornea which projects two images on the retina (Ref. 35237).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992. Fichas FAO de identificación de especies para los fines de la pesca. Guía de campo de las especies comerciales marinas y de aquas salobres de la costa septentrional de Sur América. FAO, Rome. 513 p. Preparado con el financiamento de la Comisión de Comunidades Europeas y de NORAD. (Ref. 5217)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: subsistence fisheries; aquarium: commercial
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00226 - 0.01277), b=3.15 (2.94 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.8 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).