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Atheriniformes (Silversides) >
Atherinopsidae (Neotropical silversides) > Atherinopsinae
Etymology: Odontesthes: Greek, odous = teeth + Greek,esthes = suit, something used to wrap (Ref. 45335); ledae: Named in honor of the ichthyologist Leda Francisca Armani Jardim.
Eponymy: Dr Leda Francisca Armani Jardim is a Brazilian ichthyologist who was Professor of Ichthyology at Universidade Federal do Rio Grande do Sul, in Porto Alegre. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce; saumâtre pélagique. Subtropical
South America: interconnected lakes southern to brackish water estuarine area of the rio Tramandai drainage in southern Brazil, from lagoa do Armazem through lagoa do Rincao das Eguas in the south; further in two partially isolated lakes south of the rio Tramandai drainage, namely lagoa do Cipo and lagoa da Solidao.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 20.3 cm SL mâle / non sexé; (Ref. 116661)
Épines dorsales (Total) : 4 - 6; Rayons mous dorsaux (Total) : 8 - 10; Épines anales: 1; Rayons mous anaux: 13 - 18; Vertèbres: 47 - 49. Scales in lateral line series above lateral band 48-52; predorsal scales 23-26; conical head shape, with a terminal mouth placed near a horizontal line crossing the center of pupil and the middle of head depth and lacks a pronounced angle at the retroarticular joint (Ref. 47314). Differs from O. bicudo by having smaller snout length, larger eye diameter, larger interorbital width and larger head depth (Ref. 47314).
Body shape (shape guide): elongated.
Occurs almost exclusively in freshwater lakes, but also found occasionally in brackish water lagoons (Ref. 47314).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Wingert, J.M., J. Ferrer and L.R. Malabarba, 2017. Review of the Odontesthes perugiae species group from Río de La Plata drainage, with the description of a new species (Atherinomorpha: Atherinopsidae). Zootaxa 4250(6):501-528. (Ref. 116661)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
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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=0.00550 (0.00240 - 0.01261), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
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 (15 of 100).
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