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Potamotrygon henlei  (Castelnau, 1855)

Bigtooth river stingray
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Potamotrygon henlei
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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: 5.8 - 7.2; dH range: 4 - 15.   Tropical; 23°C - 28°C (Ref. 12468)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm WD male/unsexed; (Ref. 36687)

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

South America: Tocantins River basin (Tocantins and Araguaia rivers).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Two to three live offsping are produced.

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

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. John Hopkins University Press, Maryland. (Ref. 35766)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

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].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Fec =2-3).
Vulnerability (Ref. 59153):  Very high vulnerability (84 of 100) .