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Sternarchella duccis (Lundberg, Cox Fernandes & Albert, 1996)

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drawing shows typical species in Apteronotidae.

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> Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の漂泳性; 深さの範囲 1 - 23 m (Ref. 13085). Tropical

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South America: Amazon basin.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 22.6 cm TL オス/雌雄の選別がない; (Ref. 13085)

簡単な記述 検索表 | 形態学 | 形態計測学

This species is distinguished from all congeners by the following characters: with a highly superior mouth, the lower jaw projecting upwards beyond the upper jaw (vs. terminal in calhamazon, orthos, patriciae, raptor, rex, schotti and sub-terminal in orinoco, sima); a strongly concave dorsal margin of the frontal (vs. straight in calhamazon, orthos, patriciae, raptor, rex, schotti and convex in orinoco, sima) (shared with Eastern Amazonian populations of S. orthos) (Ref. 126780).

生物学     用語集 (例 epibenthic)

Inhabit deep channels of white-water and black-water rivers (Ref. 13085); collected at low densities. Stomach content analysis indicates that it feeds entirely on the tails and scales of other electric fishes (Ref. 126780).

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

Evans, K.M., W.G.R. Crampton and J.S. Albert, 2017. Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [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).
栄養段階 (Ref. 69278):  3.3   ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (13 of 100).