Klassifizierung / Names
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Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335).
More on author: Cope.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Temperate
South America: Uruguay River and Laguna dos Patos basins in Brazil (Ref. 37059). Reported from Argentina (Ref. 51923).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 5.6 cm SL Männchen/unbestimmt; (Ref. 27672)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 12; Afterflossenweichstrahlen: 8. Is uniquely diagnosed by the W-shaped lateral marks on the body, which are formed by a concentration of melanophores in three scales of the lateral and two adjacent scales of the series situated immediately below. Is also distinguished from other species of Characidium from southern Brazil in having 12 series of scales around the caudal peduncle (14 in C. pterostictum), complete lateral line (incomplete in C. rachovii), 37-38 lateral scales (36 or fewer in C. orientale and C. occidentale); and lack of oblique bars below lateral line (10-14 such bars present in C. serrano).
Occurs in diverse habitats including large sandy beaches of wide, open lagoon systems to smaller muddy or rocky streams with slow current or even swampy environments (Ref. 27672).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01023 (0.00450 - 0.02327), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.4 ±0.3 se; based on size and trophs of closest relatives |
Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |