Bryconamericus cinarucoense

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Bryconamericus cinarucoense Román-Valencia, Taphorn & Ruiz-C., 2008

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Bryconamericus cinarucoense
Picture by Romàn-Valencia, C.

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> Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335);  cinarucoense: Named for the Cinaruco River of southern Apure State, where the type series was collected..

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

; zoet water benthopelagisch. Tropical

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South America: Cinaruco River of the Orinoco River basin in Venezuela and Essequibo River basin in Guyana; probably extends to similar rivers throughout the Orinoco Basin in Venezuela and Colombia.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 3.7 cm SL mannelijk / geslacht onbekend; (Ref. 77139)

Korte beschrijving Morfologie | Morfometrie

Wervels: 35. Distinguished from all other species of the genus by having upper jaw extending beyond lower, maxilla short with one or two teeth, cartilaginous rhinosphenoid extending to anterior part of prevomer, pelvic bone with cartilage along anterior edge, and lateral line pores in a straight line. Can be separated from the most similar Venezuelan species Bryconamericus subtilisform by possessing fewer pored lateral line scales 35-37 (vs. 38-39), more scales below lateral line to origin of pelvic fin 4-5 (vs. 2-3), more branched anal-fin rays 20-21 (vs. 17-18), and pelvic-fin rays usually ii,6 (vs. I,7).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found along shore over sandy substrates in mainstreams of rivers, as well as tributaries (Ref. 77139).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Román-Valencia, C., D.C. Taphorn B. and R.I. Ruiz-C., 2008. Two new Bryconamericus: B. cinarucoense n. sp. And B. singularis n. sp. (Characiformes, characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species. Anim. Biodivers. Conserv. 31(1):15-27. (Ref. 77139)

Status op de Rode Lijst van het IUCN (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00372 - 0.01775), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  2.8   ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).