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> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); javari: Named for the Rio Javari (Ref. 49716).

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

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

South America: Western Amazon, from the Río Amazonas, the lower portions of the Napo, Javari and Ucayali basins.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 20.1 cm TL पुल्लिंग / अलिंग; (Ref. 49716)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 0; ऐनल सौफट रेज़: 180 - 240. Color pattern composed of narrow pale bands (about 1/4 width of dark bands) on anterior half of body, approximately equally narrow dorsally and ventrally, and 5-8 partially divided, often H-shaped dark bands on posterior half of body (Ref. 49716).

Facultative air-breathing in the genus (Ref. 126274); Collected from the lower reaches of meandering upland (non-floodplain) streams, in undercut banks and submerged vegetation (Ref. 49730).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक : Campos-da-Paz, Ricardo | सहयोगीयो

Albert, J.S. and W.G.R. Crampton, 2003. Seven new species of the neotropical electric fish Gymnotus (Teleostei, Gymnotiformes) with a redescription of G. carapo (Linnaeus). Zootaxa 287:1-54. (Ref. 49716)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 20 October 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
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परभक्षी

Ecology
पारिस्थितिकी

Population dynamics
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Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Distribution
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Anatomy
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Stamps, coins, misc.

Outreach
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इंटरनेट स्रोत

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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

लौटाव (Ref. 120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).

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

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Gymnotus javari Albert, Crampton & Hagedorn, 2003