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> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); darwini: Named for Charles Robert Darwin, an English naturalist; a patronym (Ref. 128926).
Eponymy: Charles Robert Darwin (1809–1882) was the prime advocate, together with Wallace (q. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / kisaran kedalaman / distribution range Ekologi

; air tawar bentopelagis. Tropical

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | peta titik | Introduksi | Faunafri

South America: Brazil.

Size / Weight / umur

Kematangan: L_m ? range ? - ? cm
Max length : 15.7 cm TL jantan/; (Ref. 128926)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

duri punggung lunak (Keseluruhan (total)) : 12 - 14; Sirip dubur lunak: 215 - 260. This species can be distinguished from all congeners in the 'Gymnotus carapo group clade' by the following set of characters: unique set of characters of uncertain polarity, including the number of prominent dark bands along the body, dark bands along body 3-4 times wider than pale interbands, with almost straight margins (never broken anteriorly into irregular dark spots), and bands almost uniform in color; number of scales above lateral line; number of lateral-line perforated scales to first ventral ramus; number of total pored lateral-line scales; head length; snout length; body depth; number of anal-fin rays; number of pectoral-fin rays; number of precaudal vertebrae; number of teeth on anterior row of premaxilla; and number of teeth along outer row of dentary (Ref. 128926).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

rujukan utama Upload your references | Acuan | Koordinator : Campos-da-Paz, Ricardo | mitra

Campos-da-paz, R. and C.D. de Santana, 2019. A new species of the electric knifefish Gymnotus Linnaeus (Gymnotiformes: Gymnotidae) from northeastern Brazil. Copeia 107:144-151. (Ref. 128926)

Status IUCN Red List (Ref. 130435: Version 2024-2)

kurang bimbang (LC) ; Date assessed: 01 July 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Trophic ecology
Food items (preys)
Komposisi makanan
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Ekologi
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Population dynamics
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Length-weight rel.
Length-length rel.
ukuran frekuensi
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pemulihan
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Life cycle
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Kematangan
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Sumber internet

Estimates based on models

Phylogenetic diversity index (Acuan 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00427 (0.00204 - 0.00890), b=2.99 (2.80 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

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

Daya lenting (Acuan 120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).

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

Gymnotus darwini Campos-da-Paz & de Santana, 2019