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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Anablepidae (Four-eyed fishes, onesided livebearers & white-eye) > Anablepinae
Etymology: sulfurica: Named after the Spanish adjective 'sulfurica' meaning related to sulfur or from the sulfur, referring to the species' habitat that is rich in sulfur (Ref. 120686).
Eponymy: Reverend Leonard Jenyns (1800–1893) was a clergyman and amateur naturalist. [...] (Ref. 128868), visit book page.

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

Freshwater; pelagic. Tropical

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South America: Argentina (Laguna La Quinta, Jujuy Province).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.3 cm SL male/unsexed; (Ref. 120686)

Short description Identification keys | Morphology | Morphometrics

This species can be distinguished by the lack of scales on the ventral surface of the body or having a single row of scales, continuous or not, from the isthmus to the bases of the pelvic fins (vs. completely scaled ventral surface of body); enlarged head and postorbital area compared to other species of the genus; prognathous lower jaw with a hypertrophied lip. Colouration: presenting eight to eleven irregular blotches along the mid-lateral surface of the body, formed by dark-brown chromatophores, ranging from rounded spots to vertical bars stretching up to three scales in depth (vs. different configuration pattern) (Ref. 120686).

A sulfide-tolerant species currently found restricted to the lagoon and ponds in Laguna La Quinta. The surrounding environment has elevated temperatures (39˚-50˚C), low dissolved oxygen concentrations (0.25-5 mg/L) and elevated levels of SO4 (990 to 1015 mg/l). Adults were found mostly in the deepest ponds while juveniles were found schooling in small, shallow ponds (Ref. 120686).

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

Main reference Upload your references | References | Coordinator : Ghedotti, Michael J. | Collaborators

Aguilera, G., G.E. Terán, J.M. Mirande, F. Alonso, S. Rometsch, A. Meyer and J. Torres-Dowdall, 2019. Molecular and morphological convergence to sulfide-tolerant fishes in a new species of Jenynsia a (Cyprinodontiformes: Anablepidae), the first extremophile member of the family. PlosONE 14(7):1-19. (Ref. 120686)

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

Critically Endangered (CR) (B1ab(iii)+2ab(iii)); Date assessed: 11 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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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=0.00537 (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): 3.0 ±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).

Jenynsia sulfurica Aguilera, Terán, Mirande, Alonso, Rometsch, Meyer & Torres-Dowdall, 2019