Cynolebias obscurus

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Cynolebias obscurus Costa, 2014

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drawing shows typical species in Rivulidae.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335);  obscurus: From the Latin adjective obscurus, meaning dark, in reference to the predominant dark grey coloration in males of this species..

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

; zoet water benthopelagisch. Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

South America: Paramirim River drainage, São Francisco River basin in Brazil.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL mannelijk / geslacht onbekend; (Ref. 97357); 3.9 cm SL (female)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 16-18; Anale zachte stralen: 19 - 22; Wervels: 34 - 35. Cynolebias obscurus differs from all other species of the C. porosus group by the possession of the following characters: distal portion of anal-fin rays grey in males (vs. red); white dots concentrated on middle of flank in males (vs. about equally arranged in the whole flank); basihyal width about 50-55% of length (vs. about 65-70%); ventral process of autopalatine absent (vs. present) (Ref. 97357).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Occurs in vestigial small pools, measuring about 3 m wide and extending close and parallel to the road for about 1 km. The whole area around the pool is composed of plantation, without any vestige of the original habitat. Sympatric with Hypsolebias macaubensis (Ref. 97357).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : Costa, Wilson J.E.M. | Medewerkers

Costa, W.J.E.M., 2014. Six new species of seasonal killifishes of the genus Cynolebias from the São Francisco river basin, Brazilian Caatinga, with notes on C. porosus (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 25(1):79-96. (Ref. 97357)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Ernstig bedreigd (CR) (B1ab(iii)+2ab(iii)); Date assessed: 03 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).