分類 / Names
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Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335); patriciae: Named for Patricia Evans, a prominent civil-rights activist and community leader in Philadelphia, Pennsylvania..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Peru.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 20.8 cm TL オス/雌雄の選別がない; (Ref. 126780)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished from all its congeners by the following characters: with two rows of bones visible externally in caudal peduncle (vs. one row in duccis, orinoco, orthos, raptor, sima, schotti) (shared with calhamazon, rex); continuous membrane of tissue connecting the anal-fin base and caudal peduncle (vs. no membrane in duccis, orinoco, orthos, raptor, sima, schotti) (shared with calhamazon, rex); presence of a long body-cavity, 14-15 pre-caudal vertebrae (vs. 12-14 in calhamazon and 16 duccis, orinoco, rex, sima, schotti) (shared with orthos, raptor); possess a ridge or crown of thorny projections at border of parietal and supraoccipital and epioccipital ridges (vs. absent in calhamazon, duccis, orinoco, raptor, rex, schotti, sima); with a ridge on the posterior dorsal surface of the basihyal (vs. ridge absent in calhamazon) (shared with
duccis, orinoco, orthos, sima, schotti, rex, raptor) (Ref. 126780).
Collected by trawling the river bottom where individuals inhabit deep river channels (10-20 m) during the day and move to shallower water at night to feed near the river margin and over flooded beaches. Stomach content indicates that these fishes feed primarily on larger-bodied (non-planktonic) aquatic insect larvae (e.g. Odonata and Ephemeroptera) and some juvenile fishes (Ref. 126780).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
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 (11 of 100).
