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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Guianacara: Composed from Guyana + Tupí, guaraní, acará = the name of a fish (Ref. 45335); cuyunii: Named for the Cuyuní River; noun in apposition.
Eponymy: This is a toponym referring to the Cuyuní River, Bolívar, Venezuela; the type locality. (Ref. 128868), visit book page.
More on authors: López-Fernández, Taphorn & BaechleKullander.

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

; süßwasser pelagisch. Tropical

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South America: Venezuela.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 7.5 cm SL Männchen/unbestimmt; (Ref. 57436)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Guianacara cuyunii belongs to the subgenus Guianacara and it differs from G. oelemariensis (subgenus Oelemaria) by having 2 supraneurals instead of one and by possessing a uniformly dark midlateral bar, in contrast with a midlateral spot. It can be distinguished from G. stergiosi, G. geayi and G. sphenozona in having a thinner midlateral bar which is three scales at its widest point, gradually thinning to two scales below the lateral line (vs. midlateral bar four scales at its widest and is never thinned to less than three scales). Adult G. cuyunii retain the black coloration in the membranes of the anterior three dorsal spines (lost in adults of G. sphenozona and G. geayi). It is distinguished from G. owroewefi by its thinner, never faint midlateral bar. Furthermore, G. cuyunii can be distinguished from G. stergiosi, G. owroewefi, and G. sphenozona by having a pectoral fin that does not reach the base of the anal fin and a branchiostegal membrane of background body color instead of dusky (Ref. 57436).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Kullander, Sven O. | Partner

López-Fernández, H., D.C. Taphorn Baechle and S. Kullander, 2006. Two new species of Guianacara from the Guiana Shield of Eastern Venezuela (Perciformes: Cichlidae). Copeia 2006(3):384-395. (Ref. 57436)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

gefährdet, siehe IUCN Red List (VU) (B1ab(iii,v)); Date assessed: 12 March 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02512 (0.01198 - 0.05266), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Guianacara cuyunii López-Fernández, Taphorn Baechle & Kullander, 2006