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).
Eponymy: William Charles Schroeder (1894–1977) was an American oceanographer and ichthyologist. [...] (Ref. 128868), visit book page.
Taxonomic Remarks
Holotype was originally in the private collection of A. Fernandez-Yepez (AFY 51289). Distribution of this species was expanded by Castex & Yagolkowski (1970) to include the Negro river of the Amazonas basin. Note that the species we recognize as Potamotrygon schroederi does not correspond to this species in Rosa (1985a) – his “P. schroederi” actually represents a new species. Reproductive biology unknown. Additional references: Mago-Leccia (1970), Compagno & Cook (1995).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Tropical; 18°C - 25°C (Ref. 13614)
South America: Apure (Orinoco basin) and Negro (Amazon basin) rivers.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 60.0 cm WD mannelijk / geslacht onbekend; (Ref. 36687)
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Taphorn, D., R. Royero, A. Machado-Allison and F. Mago Leccia, 1997. Lista actualizada de los peces de agua dulce de Venezuela. p.55-100. In E. La Marca (ed.) Catálogo zoológico de Venezuela. vol. 1. Vertebrados actuales y fosiles de Venezuela. Museo de Ciencia y Tecnologia de Mérida, Venezuela. (Ref. 28768)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |