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> Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335); calhamazon: Specific name is derived from the Portuguese 'calha' for channel plus 'Amazon', and is the name given to the 1992-1997 Brazilian-US collaborative ichthyological inventory of the deep river channels of the Brazilian Amazon..

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

; sötvatten bentopelagisk. Tropical

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South America: Brazilian and Peruvian Amazon. Widespread and common in large river channels of the Amazon-Solimões mainstem and major tributaries from the Pará and Tocantins to Iquitos, and upstream in rio Negro to at least the confluence of rio Branco, and in the rio Madeira to at least the confluence wit río Beni.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 18.5 cm TL hane/ej könsbestämd; (Ref. 93342)

Short description Morfologi | Morfometri

Mjukstrålar i analfenan: 147 - 165; Ryggkotor: 77 - 79. This species is distinguished from its congeners by the following characters: presence of a flat posterior dorsal surface of the basihyal (vs. ridge); with 12 or fewer teeth on pharyngobranchial (vs. 14); a small body cavity usually with less than 14 pre-caudal vertebrae present (vs. 14); without a crown of thorny projections present at border of parietals and supraoccipital (vs. present in patriciae, orthos) (shared with duccis, orinoco, rex, raptor, schotti, sima); with a deep caudal peduncle, 27-42% HL (vs. 15-21% HL) (Ref. 126780).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Albert, James S. | Medarbetare

Evans, K.M., W.G.R. Crampton and J.S. Albert, 2017. Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 21 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [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).

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

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

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Sternarchella calhamazon Lundberg, Coz Fernandes, Campos da Paz & Sullivan, 2013