Astyanax bifasciatus Garavello & Sampaio 2010
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Astyanax bifasciatus
No image available for this species;
drawing shows typical fish in this Family.
Images Google
No image available for this species;
drawing shows typical fish in this Family.
Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
> Characiformes (Characins) > Characidae (Characins) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335); bifasciatus: From the Latin 'bis', meaning double, and 'fascia', meaning stripe; transverse bars crossing other bars, in reference to the two vertical dark brown bars crossing humeral region.
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335); bifasciatus: From the Latin 'bis', meaning double, and 'fascia', meaning stripe; transverse bars crossing other bars, in reference to the two vertical dark brown bars crossing humeral region.
Environment: milieu / climate zone / depth range / distribution range Écologie
; eau douce benthopélagique. Tropical
Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri
South America: Iguaçu basin in Brazil.
Taille / Poids / Âge
Description synthétique Morphologie | Morphométrie
Rayons mous dorsaux (Total): 9-10; Rayons mous anaux: 19 - 24. This species is distinguished from its congeners from the Iguaçu basin by the combination of the following characters: infraorbital 3 deep, but not in contact with preopercle, leaving a narrow naked area between border and preopercle; premaxillary external series with 4 (rarely 5) pentacuspid teeth; non-symphysial teeth in premaxillary internal series heptacuspid; vertical humeral bar with dorsal portion much wider than ventral portion; a faint and diffuse 'post-humeral' spot; lateral line scales 36-40, usually 37 or 38; first branchial arch with 7-9, usually 8, rakers in upper branch and 10-13, usually 12, rakers in lower branch (Ref. 85756).
Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
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Garavello, J.C.I. and F.A.A. Sampaio, 2010. Five new species of genus Astyanax Baird & Girard, 1854 from Rio Iguaçu, Paraná, Brazil (Ostariophysi, Characiformes, Characidae). Brazilian Journal of Biology 70(3):847-865. (Ref. 85756)
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Sources Internet
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Estimates based on models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.01243 - 0.03511), b=2.95 (2.81 - 3.09), in cm total length, based on LWR estimates for this species & 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): .
Vulnérabilité (Ref. 59153): Low vulnerability (10 of 100) .