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Gymnotiformes (Knifefishes) >
Rhamphichthyidae (Sand knifefishes)
Etymology: Rhamphichthys: Greek, rhamphos = bill, peak + Greek, ichthys = fish (Ref. 45335); longior: longior, latin for longer, referring to the longer shape of this species amongst the other species of the genus (Ref. 35403).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: Paru Lake in the lower Amazon River basin, Brazil.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 80.0 cm SL mannelijk / geslacht onbekend; (Ref. 35403)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 0. Body depth 7.3 to 7.6% of the anal fin length. Head length 10.8 to 11.1% of the anal fin length. No caudal fin (Ref. 35403).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Triques, M.L., 1999. Three new species of Rhamphichthys Müller et Troschel, 1846 (Ostariophysi: Gymnnotiformes: Rhamphichthyidae). Rev. Fr. Aquariol. 26(1-2):1-6. (Ref. 35403)
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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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00101 - 0.00685), b=3.05 (2.82 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
