Jenynsia sulfurica

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

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drawing shows typical species in Anablepidae.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> 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 / distribuzione batimetrica / distribution range Ecologia

; acqua dolce pelagico. Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri

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

Size / Peso / Age

Maturità: Lm ?  range ? - ? cm
Max length : 3.3 cm SL maschio/sesso non determinato; (Ref. 120686)

Short description Chiavi di identificazione | Morfologia | Morfometria

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).

Biologia     Glossario (es. epibenthic)

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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Ghedotti, Michael J. | Collaboratori

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 2025-1)

  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 |

Informazioni ulteriori

Trophic ecology
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Nomi Comuni
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Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Fonte Biblio. 82804):  PD50 = 0.5000   [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 (Fonte Biblio. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio. 120179):  Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100). 🛈