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

Issue
Nothing is known about its reproductive biology. Additional references: Hartel & Dingerkus (1997), Ferreira et al. (1998), Compagno & Cook (1995).

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

Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical

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

South America: Middle and lower Amazon River, lower Tocantins River, Pará River, Trombetas River in Brazil.

Length at first maturity / Size / Weight / Age

Maturity: L_m 39.0 range ? - ? cm
Max length : 54.7 cm WD male/unsexed; (Ref. 94972); max. published weight: 15.0 kg (Ref. 27548)

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Fecundity: 1-4 pups; gestation takes 3-4 months (Ref. 52199).

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

de Carvalho, M.R., N. Lovejoy and R.S. Rosa, 2003. Potamotrygonidae (River stingrays). p. 22-28. 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. 36687)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 30 April 2004

CITES

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): 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), in cm total length, 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

Generation time: 3.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): Very Low, minimum population doubling time more than 14 years (Assuming Fec. <10; tm=1.8; K=0.3 (in captivity).).

Fishing Vulnerability (Ref. 59153): High vulnerability (58 of 100).

Price category (Ref. 80766): Medium.

Potamotrygon scobina Garman, 1913