Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Doradidae (Thorny catfishes)
Etymology: Megalodoras: Greek, megas, megalos = great + Greek, doras = skin (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; demersal. Tropical; 22°C - 25°C (Ref. 2059), preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Amazon, Tocantins and Essequibo River basins.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 54 - ? cm
Max length : 53.0 cm SL male/unsexed; (Ref. 9081); 60.0 cm SL (female); common length : 49.0 cm SL male/unsexed; (Ref. 9081); max. published weight: 2.9 kg (Ref. 9081); max. published weight: 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

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)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00469 - 0.01616), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic Level (Ref. 69278): 2.7 ±0.39 se; Based on food items.

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): Moderate to high vulnerability (52 of 100) .

Price category (Ref. 80766): Unknown.

Megalodoras uranoscopus (Eigenmann & Eigenmann, 1888)