Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Incertae sedis
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335); uaiso: The name, uaiso, of Portuguese 'uai sô', is a common colloquial interjection used by most people living in Minas Gerais State, Brazil, to express surprise, confirmation, awe, amazement, in special those from the 'Triângulo Mineiro', region where the new species was found. A name in apposition.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic, usually 1 - ? m (Ref. 94154). Tropical
South America: Rio Uberaba, rio Grande drainage, upper rio Paraná basin in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 94154)
Morphology | Morphometrics
soft rays: 15 - 20. This species is diagnosed from its congeners by the short anal fin with 12-17 branched rays, and dorsal fin with ii,7-8 rays. It can be also distinguished by having i,5-6 rays on the pelvic fin, and its color pattern of the eyes in life, slightly blue on the lower half and blackish on the upper half. It can be diagnosed by having the following combination of characters: a conspicuous black humeral spot; one or rarely two maxillary teeth with up to seven cusps; and adipose fin present (Ref. 94154).
Occurs in school, occasionally solitary, at average depth of one meter. Forms school mainly in open areas, devoid of vegetation (Cyperaceae, mainly). Feeds mainly on aquatic insects (apparently Diptera larvae), followed by algae, vegetal matter, Acari, and Thecamoebina (Ref. 94154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Carvalho, F.R. and F. Langeani, 2013. Hyphessobrycon uaiso: a new characid fish from the rio Grande, upper rio Paraná basin, Minas Gerais State (Ostariophysi: Characidae), with a brief comment about some types of Hyphessobrycon. Neotrop. Ichthyol. 11(3):525-536. (Ref. 94154)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00604 - 0.02750), b=3.05 (2.87 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .