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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.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
; air tawar bentopelagis. Temperate
South America: Uruguay River and Laguna dos Patos basins in Brazil (Ref. 37059). Reported from Argentina (Ref. 51923).
Size / Weight / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 5.6 cm SL jantan/; (Ref. 27672)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 12; Sirip dubur lunak: 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).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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 IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00479 - 0.03160), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Acuan
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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