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> Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes)
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); waiwai: The specific name waiwai is a reference to the indigenous people whose home territory proximates the type locality for the species..

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

; Água doce bentopelágico. Tropical

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

South America: Rio Mapuera, Rio Trombetas basin in Pará, Brazil.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 22.4 cm TL macho/indeterminado; (Ref. 115689)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Raios anais moles: 167 - 195. Eigenmannia waiwai differs from other members of the E. trilineata species group by having the length of anterodorsal process of maxilla equal to 1.5 times the width of the posterior nostril (vs. equal to 50% of the width of posterior nostril in E. antonioi, E. desantanai, E. guairaca, E. muirapinima, E. pavulagem, and E. vicentespelaea, or equal to the width of the posterior nostril in E. matintapereira, E. microstoma, and E. trilineata). In addition, it is distinguished from other species of the E. trilineata species group, with the exception of E. vicentespelaea, by having subterminal mouth (vs. terminal mouth). It can be diagnosed from E. vicentespelaea by having nine or ten longitudinal series of scales above the lateral line (vs. seven or eight), body depth at the vertical through the tip of longest pectoral-fin ray, 14.9-18.7% LEA (vs. 10.5-14.5%), depth of the posterodorsal expansion on infraorbitals 1 + 2 less than 50% of length of infraorbitals 1 + 2 (vs. approximately equal to length of infraorbitals 1 + 2), and length of the coronomeckelian bone equal to 20% of the length of Meckel’s cartilage (vs. 45% of the length of Meckel’s cartilage) (Ref. 115689).

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Referência principal Upload your references | Referências | Coordenador : Albert, James S. | Colaboradores

Peixoto, L.A.W., G.M. Dutra and W.B. Wosiacki, 2015. The electric glass knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. Zool. J. Linn. Soc. 175:384-414. (Ref. 115689)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Dados insuficientes (DD) ; Date assessed: 26 January 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

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=0.00363 (0.00172 - 0.00768), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

Eigenmannia waiwai Peixoto, Dutra & Wosiacki, 2015