Issue
See Machado-Allison & Castillo (1992: 19) for detailed morphology.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; pH range: 5.0 - 7.8; dH range: ? - 20; potamodrome (Ref. 51243). Tropical; 22°C - 28°C (Ref. 1672)
South America: rio Paraguai, lower Paraná and lower Uruguai rivers basins.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm ?, range 17 - ? cm
Max length : 25.0 cm SL mâle / non sexé; (Ref. 39031); poids max. publié: 1.0 kg (Ref. )
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Vertèbres: 35 - 36. This species differs from M. aureum by having the last abdominal spine reaching the anal-fin origin or almost so (vs. last abdominal spine clearly separated from the anal-fin origin), vertebrae 35-36 (vs. 38-39), and a conspicuous black blotch on opercle (vs. no black blotch or inconspicuous); differs from M. albiscopum by anal-fin with branched rays 26-32 (vs. 31-38); differs from M. unimaculatum by having circumpeduncular scales 30-34 (vs. 34-40), perforated scales on lateral line 74-98 (vs. 95-110) and vertebrae 35-36 (vs. 37) (Ref. 117280).
Reported to be an herbivore fish, which is highly dependent from the floodplains and of great economic importance for both commercial and sport fisheries (Ref. 117280).
Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018. Taxonomic revision of the Cis-Andean species of Mylossoma Eigenmann & Kennedy, 1903 (Teleostei: Characiformes: Serrasalmidae). Zootaxa 4387(2):275-309. (Ref. 117280)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01342 - 0.04923), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 2.8 ±0.36 se; based on food items.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
Nutrients (Ref.
124155): Calcium = 110 [51, 257] mg/100g; Iron = 1.53 [0.77, 3.44] mg/100g; Protein = 17.7 [15.7, 19.8] %; Omega3 = 0.393 [0.149, 1.113] g/100g; Selenium = 89.5 [34.0, 207.2] μg/100g; VitaminA = 28.6 [9.3, 83.5] μg/100g; Zinc = 1.84 [1.23, 2.68] mg/100g (wet weight); based on
nutrient studies.