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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335).
Eponymy: Juan Daniel Anisits (1856–1911) was born in Hungary and became a Paraguayan citizen. He worked at the the National University of Paraguay and collected many specimens that he sent to Eigenmann for study. (Ref. 128868), visit book page.
More on author: Eigenmann.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Subtropical
South America: Paraná and Uruguay River basins.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 13.2 cm TL mâle / non sexé; (Ref. 58359)
Occurs in ponds (Ref. 11229). Feeds on worms, crustaceans, insects and plants. Oviparous (Ref. 205). In captivity, spawning occurs among plants and eggs hatch usually in 20 to 24 hours. One of the hardiest tropical fishes for the home aquarium (Ref. 7020). Aquarium keeping: eats plants; in groups of 5 or more individuals; minimum aquarium size 80 cm (Ref. 51539).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: hautement commercial; Aquarium: hautement commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00601 - 0.03026), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.0 ±0.34 se; based on food items.
Résilience (Réf.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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