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); wosiackii: Named for Wolmar Benjamim Wosiacki, fish curator from the Museu Paraense Emílio Goeldi, in recognition to his important contributions to the knowledge of fishes of Brazil.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Igarapé Juruti Grande, Amazon River basin in Pará state, near the border with Amazonas state, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 116179)
Morphology | Morphometrics
soft rays: 22 - 25;
Vertebrae: 34. Hyphessobrycon wosiackii is dintinguished from all its congeners, except H. amapaensis, H. ericae, H. heterorhabdus, and H. montagi, by having an humeral blotch continuous with midlateral stripe that becomes blurred posteriorly, not reaching beyond adipose fin (vs. humeral blotch, when present, not continuous with midlateral stripe, or stripe extending to caudal fin). It differs from H. amapaensis and H. heterorhabdus by having a caudal peduncle blotch (vs. caudal peduncle blotch absent); from H. ericae by having humeral blotch roundish (vs. humeral blotch vertically elongated); and from H. montagi by having a single humeral blotch (vs. two connected humeral blotches) (Ref. 116179).
The type locality, the headwaters of the igarapé Juruti Grande, is situated at a terra firme which is not seasonally flooded. Feeds on algae and arthropods based on the gut contents of four specimens (Ref. 116179).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Moreira, C.R. and F.C.T. Lima, 2017. Two new Hyphessobrycon (Characiformes: Characidae) species from Central Amazon basin, Brazil. Zootaxa 4318(1):123-134. (Ref. 116179)
IUCN Red List Status (Ref. 120744)
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=3.06 (2.89 - 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) .