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Eigenmannia guairaca Peixoto, Dutra & Wosiacki, 2015

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drawing shows typical species in Sternopygidae.

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> 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 生態学

; 新鮮な水 底生の漂泳性. Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

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

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 17.3 cm TL オス/雌雄の選別がない; (Ref. 115689)

簡単な記述 検索表 | 形態学 | 形態計測学

臀鰭: 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).

生物学     用語集 (例 epibenthic)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Albert, James S. | 協力者

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のレッドリストの状況は (Ref. 130435)

  欠足データ (DD) ; Date assessed: 21 January 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

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).
栄養段階 (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).