Classification / 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.
Eponymy: Patricia Evans is a civil-rights activist and community leader in Philadelphia, Pennsylvania, USA. She is also the senior author’s mother. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
South America: Peru.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.8 cm TL αρσενικό/απροσδιόριστο; (Ref. 126780)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
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
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
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 Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00145 - 0.00867), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
