Classification / 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); ferrarisi: Named for Carl J. Ferraris Jr. for his contirbutions to tropical freshwater fishes worldwide (Ref. 93867).
Issue
The report of Apteronotus sp. from the Tocuyo-Yaracuy region is presumably based on A. ferrarisi, which is the only member of the genus known to occur in those basins (Ref. 93867).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Tropical
South America: Venezuela.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 27.4 cm TL maschio/sesso non determinato; (Ref. 93867)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi anali molli: 150 - 167; Vertebre: 61 - 71. This species can be distinguished from its congeners by the following set of characters: A 150-167; P 13-17; C 15-17; total vertebrae 61-71; 5th infraorbital absent as a tubular laterosensory canal segment; ossified lateral ethmoid; the number of scales above the lateral line at the midbody 10-13; the number of scales along the lateral line 73-80; the extent of the middorsal groove; tail length 6.9-9.9 % of LEA; mouth length 49.4-56.4% of HL; tail depth 22.2-28.7% of CL; orbital diameter 4.0-5.9% of HL. Colouration: body dark and head dark brown; prominent pale, broad, 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; pale band encircling base of caudal fin; caudal fin pale at base and dark brown posteriorly (Ref. 93867).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
