Characidium xavante

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Characidium xavante da Graça, Pavanelli & Buckup 2008

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Characidium xavante
No image available for this species;
drawing shows typical fish in this Family.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335);  xavante: Named for its type locality, Córrego Xavante. Xavante refers to the indigenous Brazilian ethnic group, inhabiting the region between the Rio das Mortes and Rio Culuene, Mato Grosso; also the stream at the type locality is named after this ethnic group.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoetwater benthopelagisch.   Tropical

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South America: Rio Culuene watershed, upper Rio Xingu drainage in Brazil.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL mannelijk/geslacht niet bekend; (Ref. 75787)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 12-13; Anale zachte stralen: 9 - 10; Wervels: 32 - 33. Belongs to a group of species, including Characidium nupelia, distinguished uniquely by having high number (12-18) of dark vertical bars on the body, each bar having the width of a scale. Diagnosed by a lower number of scales around the caudal peduncle (10 vs. 12 or more in most Characidium species). Differs from Characidium nupelia by its wider interorbital region (interorbital distance 30.1-38.0 vs. 20.5-28.6% HL) and lower caudal peduncle (caudal peduncle depth 35.4-44.9 vs. 46.2-57.8% HL). Additional conspicuous external characters that are not unique but are helpful in the identification of this species include absence of adipose fin, incomplete lateral line, and presence of a dark blotch on the caudal peduncle (Ref. 75787).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00309 - 0.01700), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden ().
Kwetsbaarheid (Ref. 59153):  Low vulnerability (10 of 100) .