Classificatie / Names
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Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Apteronotus: Greek, apteros = without wings / (in this cases, fins) + Greek, noton = back (Ref. 45335); pemon: Named in reference to the Pemon indigenous group whose traditional lands included much of the Rio Caroni basin (Ref. 93867).
Issue
The report of A. leptorhynchus from the Río Claro, a left bank tributary of the lower Río Caroni and from Gran Sabana region of the upper Rio Caroni basin may be based on samples of A. pemon, which is the only member of the species-group known from that river system (Ref. 93867).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: Venezuela.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 20.6 cm TL mannelijk / geslacht onbekend; (Ref. 93867)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Anale zachte stralen: 152 - 160; Wervels: 63 - 82. This species can be distinguished from its congeners by the following set of characters: A 152-160; P 16; C 18-20; precaudal vertebrate 18-19; total vertebrae 63-82; 5th infraorbital present as a tubular laterosensory canal segment; interobital distance 9.7-14.6% of HL; number of scales along the lateral line 74-83; ossified lateral ethmoid; number of scales above the lateral line at the midbody 9-10; mouth length 30-44.5% of HL; tail length 13.0-17.5% of LEA; tail depth 9.9-15.4% of CL; ocular diameter 4.0-6.3% of HL. Colouration: body and head brown; distinct, broad, light coloured longitudinal band extending from chin along dorsal midline of head and body to beginning of dorsal filament; pectoral- and anal-fin rays dark brown with translucent interradial membranes; light band encircling base of caudal fin; caudal fin pale at base, dark brown posteriorly (Ref. 93867).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
de Santana, C.D. and R.P. Vari, 2013. Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Grymnotiformes); monophyly, major clades, and revision. Zool. J. Lin. Soc. 168(3):564-596. (Ref. 93867)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
