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).
More on author: Castelnau.

Issue
Reproductive biology unknown. A large female weighing some 15 kg gave birth to one pup of 12.5 cm DW, according to Rosa (1985a). Rare in scientific collections, but frequently commercialized by aquarium industry. Highly endemic distribution may render this species as being endangered. Additional references: Bertin (1939), Sérét & McEachran (1986), Compagno & Cook (1995), Rosa & Menezes (1996).

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

; süßwasser benthopelagisch; pH range: 5.8 - 7.2; dH range: 4 - 15. Tropical; 23°C - 28°C (Ref. 12468)

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

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

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 45.0 cm WD Männchen/unbestimmt; (Ref. 36687)

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Two to three live offsping are produced.

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)

nicht bedroht (LC) ; Date assessed: 30 April 2004

CITES

Appendix III: International trade cooperation

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Trophic ecology
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Ecology
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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

Widerstandsfähigkeit (Ref. 120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec =2-3).

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

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