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> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Steatogenys: Greek, steatos = hard fat + Greek, genys, yos = jaw (Ref. 45335); ocellatus: From the Latin ocellus, diminutive of oculus, eye, in reference to the diagnostic eyelike marking at the pectoral-fin base..

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

; eau douce benthopélagique. Tropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

South America: Lago Amaña and Lago Tefe in the Upper Amazon basin of Brazil and also from a single specimen from Rio Itaya, a tributary of the Rio Amazonas near Iquitos, Peru.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m ?, range 24 - ? cm
Max length : 40.5 cm TL mâle / non sexé; (Ref. 51263)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous anaux: 167 - 195. Unique among species of Steatogenys in having very large maximum body size (length to end of anal fin 32 cm); distinct round or oval spot on pectoral-fin base, approximately 1.5 eye widths in diameter; irregular dark blotches on pectoral fin forming a distinct mottled pattern; 15 pectoral-fin rays; relatively many scales over lateral (8-10); relatively many pored lateral line scales to end of anal fin (97-103); relatively few bands on body (6-7) and relatively short caudal appendage in intact specimens (11.4-29.6% TL) (Ref. 51263).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Albert, James S. | Collaborateurs

Crampton, W.G.R., D.H. Thorsen and J.S. Albert, 2004. Steatogenys ocellatus: a new species of neotropical electric fish (Gymnotiformes: Hypopomidae) from the lowland Amazon basin. Copeia 2004(1):78-91. (Ref. 51263)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 10 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00145 - 0.00994), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (31 of 100).

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Steatogenys ocellatus Crampton, Thorsen & Albert, 2004