Platydoras costatus  (Linnaeus, 1758)

Raphael catfish
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Platydoras costatus
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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: Platydoras: Greek, platys = flat + Greek, doras = skin (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; demersal; pH range: 5.8 - 7.5; dH range: 2 - 20.   Tropical; 24°C - 30°C (Ref. 1672); 9°N - 8°S, 72°W - 50°W

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 24.0 cm SL male/unsexed; (Ref. 37054)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays: 10 - 11

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

South America: Amazon, Tocantins, Parnaíba, Orinoco, Essequibo River basins and coastal drainages in French Guiana and Suriname (Ref. 37054). Reported from Argentina (Ref. 56308).

Biology     Glossary (e.g. epibenthic)

Lives on the bottom and feeds on mollusks, crustaceans, and organic debris. Frequently occurs on sandy bottoms. Often escapes into the sediment where it hides among the anfractuosities of the submerged stocks (Ref. 35381). A juvenile in a stream of the rio Araguaia was recorded to clean the piscivorous characin Hoplias cf. malabaricus (Ref. 50806).

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.

IUCN Red List Status (Ref. 90363)

  Not Evaluated 

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00642 (-0.19440 - 0.20725), b=3.03 (2.92 - 3.15), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.0   ±0.40 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100) .
Price category (Ref. 80766):   Unknown.