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> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); chaviro: From the common name for Gymnotus in the language of the Asheninka indigenous people (Arawak/Maipurean language family). A noun in apposition..

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

; eau douce démersal; profondeur 1 - 2 m (Ref. 83382). Tropical; 25°C - ? (Ref. 83382); 9°S - 10°S, 72°W - 73°W

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South America: Peru (upper Yuruá basin, Department Ucayali and the Manu and Tampobata rivers of the Madre de Dios basin, Department Madre de Dios).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 27.5 cm SL mâle / non sexé; (Ref. 83382)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Gymnotus chaviro is unique among members of the G. carapo group (sensu Albert et al., 2004) in having a color pattern composed of oblique, dark, unbroken pigment bands along the length of the body, dark band-pairs with wavy, irregular margins, mainly unbranched or incompletely separated, pale inter-bands rarely reaching to the dorsal midline on the anterior half of the body and crescent-shaped in abdominal area (Ref. 83382).

Facultative air-breathing in the genus (Ref. 126274)

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Référence principale Upload your references | Références | Coordinateur : Campos-da-Paz, Ricardo | Collaborateurs

Maxime, E.L. and J.S. Albert, 2009. A new species of Gymnotus (Gymnotiformes: Gymnotidae) from the Fitzcarrald Arch of southeastern Peru. Neotrop. Ichthyol. 7(4):579-585. (Ref. 83382)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 24 April 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (24 of 100).

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Gymnotus chaviro Maxime & Albert, 2009