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Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchogiton: Greek, sternon = sternon, + Greek, archos = anus + Greek, geiton, -onos = neighbour (Ref. 45335); preto: Name from Portuguese 'preto' for black, refers to the diagnostic dark pigmentation of the species; an adjective, gender masculine.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce pélagique. Tropical
South America: Brazilian and northeastern Peruvian Amazon and Venezuelan Orinoco basins.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 25.0 cm SL mâle / non sexé; (Ref. 137577); 21.7 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Distinguished from all congeners by having the following characters: very dark brown or purplish black live body coloration; black pectoral-, anal- and caudal-fin membranes; premaxilla with 5 long conical teeth; one row of conical teeth pointing toward the inside of the mouth of dentary; fusion of the supracleithrum and posttemporal; anterior portion of coracoid falling short of the anterior edge of the cleithrum; absence of a prominent tri-lobed structure on the lower lip (Ref. 75769).
Found only in channels and major side branches of large whitewater and blackwater rivers (Ref. 75769).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
de Santana, C.D. and W.G.R. Crampton, 2007. Revision of the deep-channel electric fish genus Sternarchogiton (Gymnotiformes: Apteronotidae). Copeia 2007(2):387-402. (Ref. 75769)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5312 [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). |
Niveau trophique (Réf. 69278) |
3.3 ±0.3 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (21 of 100). 🛈 |