Classificatie / Namen
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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335); uaiso: The name, uaiso, of Portuguese 'uai sô', is a common colloquial interjection used by most people living in Minas Gerais State, Brazil, to express surprise, confirmation, awe, amazement, in special those from the 'Triângulo Mineiro', region where the new species was found. A name in apposition.
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water benthopelagisch, usually 1 - ? m (Ref. 94154). Tropical
South America: Rio Uberaba, rio Grande drainage, upper rio Paraná basin in Brazil.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 5.3 cm SL mannelijk / geslacht onbekend; (Ref. 94154)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 9 - 10; Anale zachte stralen: 15 - 20. This species is diagnosed from its congeners by the short anal fin with 12-17 branched rays, and dorsal fin with ii,7-8 rays. It can be also distinguished by having i,5-6 rays on the pelvic fin, and its color pattern of the eyes in life, slightly blue on the lower half and blackish on the upper half. It can be diagnosed by having the following combination of characters: a conspicuous black humeral spot; one or rarely two maxillary teeth with up to seven cusps; and adipose fin present (Ref. 94154).
Body shape (shape guide): fusiform / normal.
Occurs in school, occasionally solitary, at average depth of one meter. Forms school mainly in open areas, devoid of vegetation (Cyperaceae, mainly). Feeds mainly on aquatic insects (apparently Diptera larvae), followed by algae, vegetal matter, Acari, and Thecamoebina (Ref. 94154).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Carvalho, F.R. and F. Langeani, 2013. Hyphessobrycon uaiso: a new characid fish from the rio Grande, upper rio Paraná basin, Minas Gerais State (Ostariophysi: Characidae), with a brief comment about some types of Hyphessobrycon. Neotrop. Ichthyol. 11(3):525-536. (Ref. 94154)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00498 - 0.02769), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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