Potamotrygon orbignyi (Castelnau, 1855)

Smooth back river stingray

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Elasmobranchii \| Rajiformes \| Potamotrygonidae
Synonyms	Trygon orbignyi, Potamotrygon humerosus, Trygon dumerilii, ... more
Common names	Laraie rivière, Raya dulceacuícola, Netmønstret flodpigrokke, ... more

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Image of Potamotrygon orbignyi (Smooth back river stingray)

Picture by Germeau, G./ Doumont, Y.

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Main reference

Lasso, C.A., A. Rial B. and O. Lasso-Alcalá. 1997. (Ref. 27749)
Other references | Biblio | Coordinator : Carvalho, Marcelo | Collaborators

Size / Weight / Age

Max length : 35.0 cm WD male/unsexed; (Ref. 27749); 32.5 cm WD (female); max. published weight: 1,400 g (Ref. 27749); max. published weight: 2,000.0 g

Environment

Benthopelagic; freshwater; pH range: 6.8 - 7.5

Climate / Range

Tropical; 24°C - 26°C (Ref. 12468)

South America: Widespread in Amazon and Orinoco River basins and in river systems in Suriname, Guyana and French Guiana.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Occurs in stream swamps, floodplain lakes and artificial lagoons. Feeds mainly on insects and benthic crustaceans (Ref. 27749).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (Assuming Fec <10)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (63 of 100)	Medium

Entered by Capuli, Estelita Emily

Modified by Capuli, Estelita Emily

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Page last modified by : elaxamana, 15 July 2009

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