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Teleostei (teleosts) > 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 Ecology

Freshwater; demersal. Subtropical

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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).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. 36692)

Short description Identification keys | Morphology | Morphometrics

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 | Larvae

Main reference Upload your references | References | Coordinator : Campos-da-Paz, Ricardo | Collaborators

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)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 13 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

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

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

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Gymnotus melanopleura Albert & Crampton, 2001