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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
Écologie
; eau douce benthopélagique. Tropical
South America: coastal basins from Ribeira de Iguape River basin, Uruguay; Uruguay River basin.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 67.0, range 65 - 69 cm
Max length : 8.7 cm SL mâle / non sexé; (Ref. 116915)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 11 - 12; Rayons mous anaux: 20. It is distinguished from all other species of Characidium from southern Brazil, except C. sp. cf., C. zebra, in having 14 series of scales around the caudal peduncle (Ref. 27672).
Usually found in creeks or small rivers with rocky bottom and clear, fast flowing water (Ref. 27672).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Miyazawa, C.S. and P.M. Galetti Jr., 1994. First cytogenetical studies in Characidium species (Pisces: Characiformes, Characidiinae). Cytologia 59:73-79. (Ref. 27418)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
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=0.01000 (0.00582 - 0.01719), b=3.13 (2.99 - 3.27), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).