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> Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335).

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

; acqua dolce benthopelagico; distribuzione batimetrica 1 - 23 m (Ref. 13085). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

South America: Amazon basin.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 22.6 cm TL maschio/sesso non determinato; (Ref. 13085)

Short description Chiavi di identificazione | Morfologia | Morfometria

This species is distinguished from all congeners by the following characters: with a highly superior mouth, the lower jaw projecting upwards beyond the upper jaw (vs. terminal in calhamazon, orthos, patriciae, raptor, rex, schotti and sub-terminal in orinoco, sima); a strongly concave dorsal margin of the frontal (vs. straight in calhamazon, orthos, patriciae, raptor, rex, schotti and convex in orinoco, sima) (shared with Eastern Amazonian populations of S. orthos) (Ref. 126780).

Inhabit deep channels of white-water and black-water rivers (Ref. 13085); collected at low densities. Stomach content analysis indicates that it feeds entirely on the tails and scales of other electric fishes (Ref. 126780).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore : Albert, James S. | Collaboratori

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: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
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Ecology
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Life cycle
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [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).

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

Fishing Vulnerability (Ref. 59153): Low vulnerability (13 of 100).

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