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> Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes)
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); guairaca: The epithet ‘guairaca’ is a reference to the legendary Guairacá, a brave Indian chief who was protector of the lands and the Guarani people (Ref. 115689).

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

; air tawar bentopelagis. Tropical

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

South America: known only from Riacho Água do Ó, a tributary of the Rio Paranapanema, upper Rio Paraná basin, Paraná, Brazil.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 17.3 cm TL jantan/; (Ref. 115689)

deskripsi pendek Morfologi | Morfometrik

Sirip dubur lunak: 151 - 170. Diagnosis: Eigenmannia guairaca can be distinguished from other species in the E. trilineata species group, except E. desantanai, E. microstoma, and E. muirapinima, by the ii,11–12 pectoral-fin rays (versus ii,13–14 in E. antonioi and E. pavulagem; ii,16–17 in E. matintapereira; ii,14–15 in E. trilineata; ii,15–17 in E. vicentespelaea; and ii,13–15 in E. waiwai); Eigenmannia guairaca differs from E. desantanai, E. microstoma, and E. muirapinima by the number of total anal-fin rays, 151–170 (versus 170–198 in E. desantanai and E. muirapinima; and 173–207 in E. microstoma); Eigenmannia guairaca can be further distinguished from E. desantanai and E. muirapinima by the 5 or 6 endopterygoid teeth (versus 14–15 in E. desantanai and 8 or 9 in E. muirapinima); Eigenmannia guairaca differs from E. desantanai by the dentition pattern of the premaxilla with 9 or 10 teeth distributed in 2 rows (outermost row with 4 teeth, innermost row with 5 or 6 teeth) [versus 21–23 teeth distributed in 2 rows (outermost row with 10 to 12 teeth; innermost row with 9 to 13 teeth)]; Eigenmannia guairaca can be further distinguished from E. microstoma by the suborbital depth, 22.2–27.5% HL (versus 29.9–40.8%); the length of anterodorsal process of the maxilla equal to 50% of the width of posterior nostril (versus equal to the width of the posterior nostril); and the length of the coronomeckelian bone equal to 20% of the length of Meckel’s cartilage (versus 45% of the length of Meckel’s cartilage); Eigenmannia guairaca can be further distinguished from all species in the E. trilineata species group, except E. microstoma and E. pavulagem, by 15 precaudal vertebrae (versus 13 or 14 in E. antonioi, E. muirapinima and E. vicentespelaea; 11 or 12 in E. desantanai; 13 in E. matintapereira and E. trilineata; and 12 or 13 in E. waiwai) (Ref. 115689).

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

rujukan utama Upload your references | Acuan | Koordinator : Albert, James S. | mitra

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)

Status IUCN Red List (Ref. 130435)

kekurangan data (DD) ; Date assessed: 21 January 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan:

FAO - Publication: search | FishSource |

informasi lanjut

Negara-negara
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telur-telur
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laporan khas

semak penyelenggaraan akuarium | semak helaian fakta spesis | semak helaian fakta aqulcalture

muat turun XML

ringkasan halaman | Point data | Nama-nama umum | fotos/gambar

Sumber internet

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).

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

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

Eigenmannia guairaca Peixoto, Dutra & Wosiacki, 2015