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> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); henni: Named for Arthur W. Henn, a pioneer in Neotropical ichthyology, who collected the type specimens of this species (Ref. 49716).
Eponymy: Arthur Wilbur Henn (1890–1959) was an American herpetologist and ichthyologist. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / rango de profundidad / distribution range Ecología

; agua dulce bentopelágico. Tropical

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

South America: Río Calima, Valle de Cauca Department and the Río Juradó, Chocó Department in Colombia.

Tamaño / Peso / Age

Madurez: L_m ? range ? - ? cm
Max length : 31.2 cm SL macho / no sexado; (Ref. 49716)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 0; Radios blandos anales: 223 - 275. Head with brown ground color and irregularly shaped pale-yellow blotches located on chin, gular area, behind and under eyes, over opercle, and between eyes; pale yellow bands as broad or broader than dark brown bands on anterior half of body; obliquely oriented hyaline and dark stripes at caudal end of anal fin (Ref. 49716).

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

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Campos-da-Paz, Ricardo | Colaboradores

Albert, J.S. and W.G.R. Crampton, 2003. Seven new species of the neotropical electric fish Gymnotus (Teleostei, Gymnotiformes) with a redescription of G. carapo (Linnaeus). Zootaxa 287:1-54. (Ref. 49716)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Vulnerable (VU) (B1ab(iii)); Date assessed: 09 October 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Ecología Trófica
Food items (preys)
Composición de la dieta
consumo de alimento
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Ecología
Ecología
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Population dynamics
Coeficiente del crecimiento para
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Length-weight rel.
Length-length rel.
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Life cycle
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Physiology
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Genética
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heritabilidad

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Estimates based on models

Phylogenetic diversity index (Referencia 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).

Nivel trófico (Referencia 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resiliencia (Referencia 120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (28 of 100). 🛈

Gymnotus henni Albert, Crampton & Maldonado-Ocampo, 2003