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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); guyanensis: The species name is derived from its distribution (Ref. 84136).
More on authors: Zarske, Le & BailGéry.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch. Tropical
South America: French Guyana. Collected in all river
basins of French Guyana (see also Planquette et al., 1996, page 241) (Ref. 84136).
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 4.3 cm mannelijk / geslacht onbekend; (Ref. 84136)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
A relatively small species (largest known
specimen 56.7 mm SL) of the genus Bryconamericus Eigenmann, 1907 (type-species: B. exodon Eigenmann, 1907). The new species is characterized by the following features: (1) body depth relatively low (3.49 – 4.16), (2) anal-fin with 19 – 21 branched rays, (3) 17 – 21 setiform gill-rakers, (4) 38 – 41 scales in a longitudinal row, (5) 4½ – 5/1/3 transversal scales, (6) 37 – 40 vertebrae (total), (7) two to three tri- to quincuspid maxillary teeth, and (8) premaxilla in the outer row with four to five (mostly five) tri- to quincuspid teeth which are implanted in a irregularly row (Ref. 84136).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Zarske, A., P.-Y. Le Bail and J. Géry, 2010. New and poorly known Characiform fishes (Teleostei: Characiformes: Characidae) from French Guyana. A new Tetra of the genus Bryconamericus. Vertebrate Zoology 60(1):3-10. (Ref. 84136)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00407 - 0.02241), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).