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Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); orientale: From the Latin orientalis, meaning of the East, in reference to the distribution of the species which is located eastward from C. occidentale.
More on authors: Buckup & Reis.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce bentopelágico. Subtropical
South America: coastal basins of southern Brazil at western tributaries of Laguna dos Patos basin.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 5.7 cm SL macho/indeterminado; (Ref. 116915)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Raios dorsais moles (total) : 11 - 12; Raios anais moles: 8 - 9. Dark spots on dorsal fin do not form a continuous band across rays; anal fin of males with small spots, without larger blotches on the anterior portion. Fourth or fifth ray of pectoral fin longest, not reaching or just reaching to pelvic-fin origin. Third fin ray of pelvic fin longest, reaching area between anal opening and anal fin origin or reaching anal fin origin (Ref. 27672).
Most specimens examined were collected in small rivers or creeks with slow to moderate water current and mud, sand, and loose stones on the bottom (Ref. 27672).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Buckup, P.A. and R.E. Reis, 1997. Characidiin genus Characidium (Teleostei, Characiformes) in Southern Brazil, with description of three new species. Copeia 1997(3):531-548. (Ref. 27672)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00562 - 0.01952), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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