Classificação / Names
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Gymnotiformes (Knifefishes) >
Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335).
Eponymy: Carlos Arturo Ardila Rodríguez is an ichthyologist who teaches at Universidad Metropolitana, Barranquilla, Colombia. He has made numerous contributions to the systematics of pencilfishes. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical
South America: Rio Magdalena basin in Colombia.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Distinguished from all congeners by the following combination of characters: caudal end of the anal fin with a clear patch; dorso-posterior portion of the preopercle with two laterosensory canal pores ( from the preopercular-mandibular series); progressive loss of alternating dark and light pigments bands with the size; head length, 10.2-11.2% total length; anal fin pterygiophores with many scales (9-10); few pored lateral-line scales to first ramus (47-48); total number of pored lateral-line scales 84 (n=1); relatively large eye, orbital diameter 8.5-9.0% HL) (Ref. 54466).
Facultative air-breathing in the genus (Ref. 126274)
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Maldonado-Ocampo, J.A. and J.S. Albert, 2004. Gymnotus ardilai: a new species of Neotropical electric fish (Ostariophysi: Gymnotidae) from the Rio Magdalena basin of Colombia. Zootaxa 759:1-10. (Ref. 54466)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-2)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 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).
Nível Trófico (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).