Potamotrygon motoro  (Müller & Henle, 1841)

South American freshwater stingray
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Potamotrygon motoro
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays)
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; benthopelagic; pH range: 5.0 - 6.0; dH range: 10 - ?; potamodromous (Ref. 51243).   Tropical; 24°C - 26°C (Ref. 2060)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm WD male/unsexed; (Ref. 36687); max. published weight: 15.0 kg (Ref. 27548)

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

South America: Uruguay, Paraná-Paraguay, Orinoco, and Amazon River basins.

Biology     Glossary (e.g. epibenthic)

Found in freshwater rivers. It is an extremely dangerous species. Maximum length reported in Axelrod et al., 1991 (Ref. 6398) is 100 cm TL.

Main reference Upload your references | References | Coordinator : Carvalho, Marcelo | Collaborators

Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 4716)




Human uses

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

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec=16).
Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100) .
Price category (Ref. 80766):   Medium.