Brazil country information

Common names: Arraia, Raia
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: minor commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the middle and lower Amazon River, lower Tocantins River, Pará River, and Trombetas River (Ref. 36687). Reported from Santarém (Ref. 12202). Type locality, Rio Tocantins at Cametá, Pará (Ref. 33021).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Ferreira, E.J.G., J. Zuanon and G.M. dos Santos, 1996
National Database:

Common names from other countries

Raspel-jõerai, Raspende flodpigrokke, Raspzoetwaterrog, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (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 Ecologie

; zoet water benthopelagisch; potamodroom (Ref. 51243). Tropical

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

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 39.0 range ? - ? cm
Max length : 54.7 cm WD mannelijk / geslacht onbekend; (Ref. 94972); max. gepubliceerd gewicht: 15.0 kg (Ref. 27548)

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

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

Hoofdreferentie Upload your references | Referenties | Coördinator : Carvalho, Marcelo | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Onvoldoende gegevens (DD) ; Date assessed: 30 April 2004

CITES (Ref. 128078)

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van minder commercieel belang

FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (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).

Trofisch niveau (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Assuming Fec. <10; tm=1.8; K=0.3 (in captivity).).

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

Prijsklasse (Ref. 80766): Medium.

Potamotrygon scobina Garman, 1913