Classification / Names
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Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); nupelia: Named for Nupélia (Núcleo de Pesquisas em Limnologia, Ictiologia e Aqüicultura), in recognition of its role in the survey and ecological research of the fish fauna from the Manso Reservoir region, which led to the discovery of this species.
Eponymy: Nupélia (Núcleo de Pesquisas em Limnologia, Ictiologia e Aqüicultura) is an organisation that was involved in the survey and ecological research of fishes from the Manso Reservoir region, Mato Grosso, Brazil, during which this species was discovered. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
South America: tributary streams of Rio Cuiabá, upper Rio Paraguay basin in Brazil.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.2 cm SL hane/ej könsbestämd; (Ref. 75787)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 12 - 13; Mjukstrålar i analfenan: 9; Ryggkotor: 33. Belongs to a group of species, including Characidium xavante, distinguished uniquely by having high number (12-18) of dark, vertical bars on the body, each bar having the width of a scale. Differs from Characidium xavante by a greater number of scales
around the caudal peduncle (12 vs. 10), narrower interorbital region (interorbital distance 20.5-28.6 vs. 30.1-38.0% HL) and deeper caudal peduncle (caudal peduncle depth 46.2-57.8% vs. 35.4-44.9% HL). Additional conspicuous external characters which are not unique but are
useful in the identification of this species include absence of adipose fin, incomplete lateral line, and presence a dark blotch on the caudal peduncle (Ref. 75787).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
da Graça, W.F., C.S. Pavanelli and P.A. Buckup, 2008. Two new species of Characidium (Characiformes: crenuchidae) from Paraguay and Xingu River Basins, State of Mato Grosso, Brazil. Copeia 2008(2):326-332. (Ref. 75787)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.00977 (0.00424 - 0.02252), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
