Classification / Names
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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
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ. Tropical
South America: Rio Mapuera, Rio Trombetas basin in Pará, Brazil.
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.4 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 115689)
Short description
ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ຄີກົ້ນຂອງປາ: 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).
Life cycle and mating behavior
Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).