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Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335).
Eponymy: Nei Vidal was a geologist and palaeontologist, a colleague of the author at the Federal University of Rio de Janeiro. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Tropical
South America: northeastern tributaries of Guanabara Bay in Rio de Janeiro, Brazil.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL maschio/sesso non determinato; (Ref. 37059); peso massimo pubblicato: 3.75 g (Ref. 131243)
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Buckup, P.A., 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyol. Explor. Freshwat. 4(2):97-154. (Ref. 13683)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00548 - 0.02637), b=2.93 (2.73 - 3.13), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).