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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
Ecología
; agua dulce bentopelágico. Tropical
Distribución
Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri
South America: coastal basins from Ribeira de Iguape River basin, Uruguay; Uruguay River basin.
Length at first maturity / Tamaño / Peso / Age
Maturity: Lm 67.0, range 65 - 69 cm
Max length : 8.7 cm SL macho / no sexado; (Ref. 116915)
Short description
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 11 - 12; Radios blandos anales: 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
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Miyazawa, C.S. and P.M. Galetti Jr., 1994. First cytogenetical studies in Characidium species (Pisces: Characiformes, Characidiinae). Cytologia 59:73-79. (Ref. 27418)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de 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).
Nivel trófico (Ref.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).