Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); keronolepis: Derived from the Greek keronos (meaning beehive), plus lepís (meaning scales), in reference to the resemblance of the reticulation pattern of scales with a beehive..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
South America: Ubatuba in São Paulo State to Guapimirim River basin in Rio de Janeiro State, Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 10.4 cm SL mâle / non sexé; (Ref. 119398)
Description synthétique
Morphologie | Morphométrie
Rayons mous dorsaux (Total): 11; Rayons mous anaux: 21; Vertèbres: 38. Astyanax keronolepis is distinguished from all other species of Astyanax by the following combination of characters: 9-11 dentary teeth, gradually decreasing in size; high concentration of chromatophores distributed along the scale contour forming a hexagonal pattern, resembling a honeycomb; head heavily covered with tubercles in adults males; midlateral strip expanded anteriorly and tapering posteriorly toward the caudal peduncle; and caudal spot elliptically shaped. In addition, this species differs from most congeners, except from A. taeniatus, A. ribeirae, A. hastatus, A. burgerai, A. giton and A. bahiensis, by its humeral spot shaped like a comma. It can be diagnosed from A. taeniatus by having teeth asymmetrical and with no gap on the dentary symphysis (vs. teeth symmetrical and with a gap on dentary symphysis). It can be differentiated from A. ribeirae, A. hastatus, A. burgerai, A. giton and A. bahiensis by having only one humeral spot (vs. two humeral spots) (Ref. 119398).
Inhabits streams usually characterized by crystalline and rapid waters with rocks covered by sludge and algae. Feeds predominantly on vegetable matter and occasionally hymenoptera based on gut contents of 20 specimens (Ref. 119398).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Silva, P.C., M.C. Malabarba and L.R. Malabarba, 2019. Integrative taxonomy: Morphology and ancient DNA barcoding reveals the true identity of Astyanax taeniatus, a tetra collected by Charles Darwin during the Beagle’s Voyage. Zoologischer Anzeiger, 278:110-120. (Ref. 119398)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
Noms communsSynonymesMétabolismePrédateursÉcotoxicologieReproductionMaturitéFraiRassemblement de ponteFéconditéŒufsDéveloppement de l'œuf
Taille/ÂgeCroissanceLongueur-poidsLongueur-longueurFréquences de longueursMorphométrieMorphologieLarvesDynamique des populations larvairesRecrutementAbondanceBRUVS
RéférencesAquacultureProfil d'aquacultureSouchesGénétiqueElectrophoresesHéritabilitéPathologiesTraitementNutrientsMass conversion
CollaborateursImagesStamps, Coins Misc.SonsCiguateraVitesseType de nageSurface branchialeOtolithesCerveauxVision
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00526 - 0.02507), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
