Classification / Names
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Gymnotiformes (Knifefishes) >
Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); melanopleura: From the Latin melano meaning dark, and the Greek pleura meaning rib or side, in reference to the dark bands along the lateral body durface. Noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Subtropical
South America: Mamirauá lake system near Tefé, Amazonas, Brazil and Rio Napo drainage, Loreto, Peru (Ref. 41292). Reported from the upper Amazon River basin, Brazil (Ref. 36692).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL mâle / non sexé; (Ref. 36692)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Slender body (body depth 6-10% TL versus 11-13) possess 12 pale bands along entire length of body, about as broad as the dark bands on the posterior half of the body, and a thin pale band extending posteroventrally below the eye to the branchial isthmus.
Facultative air-breathing in the genus (Ref. 126274); Collected in a whitewater floating meadow of the floodplain in the Tefé region (Ref. 41292).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Albert, J.S. and W.G.R. Crampton, 2001. Five new species of Gymnotus (Teleostei: Gymnotiformes) from an upper Amazon floodplain, with descriptions of electric organ discharges and ecology. Ichthyol. Explor. Freshwat. 12(3):241-266. (Ref. 41292)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00209 - 0.00911), b=2.98 (2.79 - 3.17), 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
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).