Classification / Names
Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335); puka: The specific epithet puka is a Quichua word that means red, in allusion to the intensely red anal and caudal fins of this species. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Subtropical
South America: Argentina. Río Salí basin in northwestern Argentina (Ref. 72407).
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 72407)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Astyanax puka is distinguished from the remaining species of the genus by the following combination of characters: shallow body (33.5–39.8% SL), 36–38 perforated scales in lateral line, 6/5 transverse scales, 9–10 gradually decreasing dentary teeth, distally expanded premaxillary teeth, one distally expanded maxillary tooth with 7–9 cusps, short upper-jaw length (34.5–37.8% HL), short maxilla (20.7–23.3% HL)expanded abruptly under maxillary tooth position, short postorbital distance (36.6–46.9% HL), short pelvic to anal-fin origin distance (17.1–20.6% SL), 22–27 branched anal-fin rays, long caudal peduncle (13.3–16.5% SL), bony hooks restricted to pelvic-fin rays 2 to 6 and anterior 6–13 branched anal-fin rays on mature males, and the presence of broad denticles on anterior, lateral, and posterior edges of first ceratobranchial gill rakers (Ref. 72407).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Terán, G.E., M.F. Benitez and J.M. Mirande, 2020. Opening the Trojan house: phylogeny of Astyanax, two genera and resurrection of Psalidodon (Teleostei: Characidae). Zool. J. Lin. Soc. 190(4):1217-1234. (Ref. 123753)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
Download XML
Διαδικτυακές πηγές
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=0.01445 (0.00683 - 0.03057), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).