Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: levidorsa: Specific name refers to the absence of scales along the predorsal median region, thus the smooth predorsal surface (laevis = smooth; dorsum = back).
Eponymy: Dr William J Moenkhaus (1871–1947) was an American geneticist and ichthyologist who became Professor of Physiology at Indiana University Medical School (1904–1941), where he was Eigenmann’s colleague. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce pélagique. Tropical
South America: Brazil.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL mâle / non sexé; (Ref. 46237)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 9; Rayons mous anaux: 26 - 35; Vertèbres: 33. No scales long the predorsal region. Posterior edge of scales with chromatophores, enhancing the limit between these. Body deep (2-2.2 times in SL), greatest depth at dorsal-fin origin. Anal fin elongate. D ii; P1 i; P2 i; A iv.
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Benine, R.C., 2002. Moenkhausia levidorsa, a new species from Rio Aripuanã, Amazon basin, Brazil (Characiformes: Characidae). Ichthyol. Explor. Freshwat. 13(4):289-294. (Ref. 46237)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Sources Internet
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=0.01230 (0.00522 - 0.02900), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).