Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Issue
Previously placed in the genera Nans, then Nantis.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Subtropical
South America: Rio Bermejo basin, northwestern Argentina.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Inhabits streams or rivers with gravel bottom, low depth, clear rapidly flowing water and scarce submerged vegetation (Ref. 55778).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Mirande, J.M., G. Aguilera and M. Azpelicueta, 2004. A new genus and species of small characid (Ostariophysi, Characidae) from the upper rio Bermejo basin, northwestern Argentina. Rev. Suisse Zool. 111(4):715-728. (Ref. 55778)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).