Teleostei (teleosts) >
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 5.6 - 7.5; dH range: ? - 25. Subtropical; 18°C - 24°C (Ref. 1672)
South America: São Francisco and upper Paraná River drainages in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.9 cm SL male/unsexed; (Ref. 130067); max. published weight: 5.60 g (Ref. 130067)
Found in lentic environment (Ref. 11229).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Casatti, L. and R.M.C. Castro, 1998. A fish community of the São Francisco River headwaters riffles, southeastern Brazil. Ichthyol. Explor. Freshwat. 9(3):229-242. (Ref. 27701)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
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Internet sources
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=0.01023 (0.00546 - 0.01916), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.41 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).