Venezuela country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Orinoco River (Ref. 26543).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ve.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: de Santana, C.D., 2003
National Database:

Common names from other countries

Cuchillo, Samettiveitsikala, 小吻翎电鳗, ... more

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Apteronotus: Greek, apteros = without wings / (in this cases, fins) + Greek, noton = back (Ref. 45335).

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

; agua dulce bentopelágico. Tropical; 24°C - 28°C (Ref. 2059)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: the Guianas, Brazil and Peru; rivers of Colombia and Venezuela, including the Catatumbo River.

Length at first maturity / Tamaño / Peso / Age

Maturity: L_m 13.0, range 13 - ? cm
Max length : 26.9 cm TL macho / no sexado; (Ref. 36886)

Short description Claves de identificación | Morfología | Morfometría

Dorsal fin reduced to a dorsal filament;

Prefers fast flowing rivers (Ref. 26543). Forms loosely associated groups in rocky habitats or river banks (Ref. 10605). Nocturnal (Ref. 26543). Each individual fish possesses a unique spatiotemporal pattern of electric organ discharge (EOD) potentials distributed over the body surface (Ref. 10595). Chirps and EOD frequency modulations are important elements of courtship behavior and are sensitive to testosterone levels (Ref. 10011, 10883). Seems to reach sexual maturity at 1 year of age, based on breeding experiments (Ref. 10011). Tuberous electro receptors are differentiated and functional in larvae at day 9; electric organ and electro receptors both present in the larvae at the time of first exogenous feeding (Ref. 10605).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Eggs of about 3 mm diameter are deposited in crevices. Several days up to 2-3 weeks between batch spawnings. Larvae hatch after 4 days and start feeding on day 11.

Main reference Upload your references | Referencias | Coordinador : Albert, James S. | Colaboradores

Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 12 December 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
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Despredadores

Ecology
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Population dynamics
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Length-weight rel.
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Life cycle
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Distribution
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Physiology
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Genetics
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Human related
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Stamps, coins, misc.

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Nombres comunes
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

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=0.00355 (0.00145 - 0.00871), b=3.06 (2.85 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.3 ±0.3 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tm=1).

Fishing Vulnerability (Ref. 59153): Low vulnerability (17 of 100).

Apteronotus leptorhynchus (Ellis, 1912)