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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.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Subtropical
South America: coastal basins of southern Brazil at western tributaries of Laguna dos Patos basin.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 5.7 cm SL hane/ej könsbestämd; (Ref. 116915)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 11 - 12; Mjukstrålar i analfenan: 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).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
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Index för fylogenetisk mångfald (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).
Trofisk nivå (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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