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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 / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water demersaal; diepte 1 - 2 m (Ref. 83382). Tropical; 25°C - ? (Ref. 83382); 9°S - 10°S, 72°W - 73°W
South America: Peru (upper Yuruá basin, Department Ucayali and the Manu and Tampobata rivers of the Madre de Dios basin, Department Madre de Dios).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 27.5 cm SL mannelijk / geslacht onbekend; (Ref. 83382)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
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)
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 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).
Trofisch niveau (Ref.
69278): 3.4 ±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 (24 of 100).
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