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Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Deep-water
South America: Orinoco River basin.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 22.0 cm TL mannelijk / geslacht onbekend; (Ref. 126780)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is distinguished from its congeners by the following: sub-terminal mouth (vs. terminal or superior in all other species except S. sima); small interorbital distance, 17-21% HL (vs. 19-25% HL in S. sima; shared with calhamazon, patriciae); long tail with caudal peduncle length more than head length (vs. 23-93% HL in all other species) (Ref. 126780).
Cross section: compressed.
Found in deep river channels and most commonly collected in the Amacuro estuary and Llanos floodplains (Ref. 126780).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00347 (0.00141 - 0.00851), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.3 ±0.3 se; based on size and trophs of closest relatives |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |