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> Siluriformes (Catfishes) > Doradidae (Thorny catfishes) > Doradinae
Etymology: Megalodoras: Greek, megas, megalos = great + Greek, doras = skin (Ref. 45335).
More on authors: Eigenmann & Eigenmann.

Issue
Species-level distinctiveness of Tocantins and Amazonas Megalodoras not investigated.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce démersal. Tropical; 22°C - 25°C (Ref. 2059)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

South America: Amazon, Tocantins and Essequibo River basins.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m ?, range 54 - ? cm
Max length : 53.0 cm SL mâle / non sexé; (Ref. 9081); 60.0 cm SL (female); common length : 49.0 cm SL mâle / non sexé; (Ref. 9081); poids max. publié: 2.9 kg (Ref. 9081); poids max. publié: 2.9 kg

Occurs in small groups and occasionally forms schools. Inhabits rivers. Is mainly diurnal. Feeds on the fruits of Licania longipetala and Astrocaryum jauary. Also feeds on pulmonate snails (Ref. 9086).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Ferraris, Jr., Carl J. | Collaborateurs

Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37054)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 30 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: commercial

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00559 - 0.01790), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Niveau trophique (Ref. 69278): 2.7 ±0.39 se; based on food items.

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100).

Catégorie de prix (Ref. 80766): Unknown.

Megalodoras uranoscopus (Eigenmann & Eigenmann, 1888)