Pterodoras granulosus  (Valenciennes, 1821)

Granulated catfish
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Pterodoras granulosus   AquaMaps   Data sources: GBIF OBIS
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Image of Pterodoras granulosus (Granulated catfish)
Pterodoras granulosus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Doradidae (Thorny catfishes)
Etymology: Pterodoras: Greek, pteron = wing, fin + Greek, doras = skin (Ref. 45335).

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

Freshwater; demersal; pH range: 7.5 - ?; potamodromous (Ref. 51243).   Subtropical; 20°C - 24°C (Ref. 2060)

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

South America: Amazon and Paraná River basins and coastal drainages in Guyana and Suriname.

Length at first maturity / Size / Weight / Age

Maturity: Lm 25.4, range 64 - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 37054); max. published weight: 6.5 kg (Ref. 40637)

Biology     Glossary (e.g. epibenthic)

Nocturnal predator. Occurs in small groups. Feeds mainly on the fruits of Astrocaryum javary (Ref. 9084).

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)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquarium: public aquariums
FAO(Publication : search) | FishSource |

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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=0.01995 (0.01457 - 0.02733), b=2.99 (2.90 - 3.08), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  2.6   ±0.29 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100) .
Price category (Ref. 80766):   Unknown.