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Potamotrygon falkneri Castex & Maciel, 1963

Largespot river stingray
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Image of Potamotrygon falkneri (Largespot river stingray)
Potamotrygon falkneri
Picture by Murch, A.


Brazil country information

Common names: Arraia, Raia, Raya
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
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: de Carvalho, M.R., N. Lovejoy and R.S. Rosa, 2003
National Database:

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

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

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

; süßwasser benthopelagisch.   Temperate

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

South America: Paraná-Paraguay River basin, from Cuiabá and Piquiri rivers (among others) to the La Plata River.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm WD Männchen/unbestimmt; (Ref. 36687)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

After a gestation period of about 20 weeks two pups were born in a public aquarium (Ref. 57489).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

After a pregnancy of about 20 weeks two pups were born in the John-Shedd-Aquarium, New York.

Hauptreferenz Upload your references | Referenzen | Koordinator : Carvalho, Marcelo | Partner

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. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN Rote Liste Status (Ref. 130435)

  Daten mangelhaft (DD) ; Date assessed: 09 September 2004

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

Fischereien: nicht kommerziell; Aquarium: Schauaqaurium
FAO(Publication : search) | FishSource |

Mehr Information

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Ökologie
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Ökotoxikologie
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Ablaichen
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Eier
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Internet Quellen

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
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec=2).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).