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: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335); microschemos: From the Greek mikroschemos, meaning low stature, in reference to the shallow body depth of the species.
Environment / Climate / Range
Ecology
Freshwater; benthopelagic. Tropical, preferred ?
South America: Rio Itapemirim drainage in Espirito Santo State, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 57404)
Short description
Morphology | Morphometrics
Vertebrae: 35 - 36. A member of the Astyanax scabripinnis species complex that distinguishes from species outside this complex by having anal fin with 14-18 branched rays and body depth shallow (26.9-29.7% of SL). Differs from other species of the species complex by its shallow body depth (26.9-29.7% SL) and the smaller interorbital width (26.9-30.4% HL) (Ref. 57404).
The type locality is about 2 m wide brook with clear water, segments with rapids, riparian vegetation and a substrate of stones and rocks; associated with Characidium sp.,
Neoplecostomus sp. and Trichomycterus sp. (Ref. 57404).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bertaco, V.A. and C.A.S. de Lucena, 2006. Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex. Neotrop. Ichthyol. 4(1):53-60. (Ref. 57404)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
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Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00629 - 0.03027), b=3.03 (2.86 - 3.20), based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 2.8 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref.
69278): .
Vulnerability (Ref.
59153): Low vulnerability (10 of 100) .