Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); patriciae: Named in honor to the author's wife, Patricia L. Gonçalves.
Environment / Climate / Range
Freshwater; benthopelagic. Subtropical; 7°C - ?
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 54750)
Morphology | Morphometrics
Distinguished from other species of Bryconamericus from southern South America by the combination of the following characters: body depth 25.5-30.3% SL, mean 28.0; head length 25.2-27.6% SL, mean 26.3; pelvic fin length 11.0-14.4% SL, mean 12.5; branched anal-fin rays 14-18; teeth of outer row of premaxilla regularly implanted; teeth of inner row of premaxilla pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins (Ref. 54750).
Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
South America: Rio Uruguay drainage and Laguna dos Patos drainage in Brazil.
Inhabits rivers and creeks with clear water, light to strong water current and bottom formed by rocks, stones and in some points gravel and sand (Ref. 54750). Usually occurs in pools below the rapids (Ref. 54750).
da Silva, J.F.P., 2004. Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotrop. Ichthyol. 2(2):55-60.
IUCN Red List Status (Ref. 90363)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00218 - 0.02098), b=3.27 (3.02 - 3.52), based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.7 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .