You can sponsor this page

Potamotrygon motoro (Müller & Henle, 1841)

South American freshwater stingray
Uploaden van uw Foto's en video's
Pictures | Google afbeelding
Image of Potamotrygon motoro (South American freshwater stingray)
Potamotrygon motoro
Picture by Murch, A.

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 authors: Müller & Henle.

Issue
Authorship of species is credited to Müller & Henle (1841) and not Naterrer (who collected the type specimen) as in Rosa (1985a). A widespread species that may require further subdivision after more study. Studies of its reproductive biology indicate that females attain sexual maturity between 24 and 32 cm DW (males between 20 and 30 cm DW), and may produce from three to 21 embryos per gestation (Achenbach & Achencbach, 1976) or only six or seven (Thorson et al., 1983b; these differences may be populational). Larger specimens may weigh 10 kg. This species has been captively bred in aquaria, but is still the most comercially imported species by the aquarium industry. Additional references: Bertin (1939), Castex & Castello (1970b), Achenbach & Achenbach (1976), Thorson et al. (1983b), Sérét & McEachran (1986), Ortega & Vari (1986), Paepke & Schmidt (1988), Barriga (1991), Compagno & Cook (1995), Lasso et al. (1997a), Ferreira et al. (1998), Britski et al. (1999).

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

; zoet water benthopelagisch; pH range: 5.0 - 6.0; dH range: 10 - ?; potamodroom (Ref. 51243). Tropical; 24°C - 26°C (Ref. 2060)

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

South America: Uruguay, Paraná-Paraguay, Orinoco, and Amazon River basins.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm WD mannelijk / geslacht onbekend; (Ref. 36687); max. gepubliceerd gewicht: 34.2 kg (Ref. 85107)

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found in freshwater rivers. It is an extremely dangerous species. Maximum length reported in Axelrod et al., 1991 (Ref. 6398) is 100 cm TL.

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

16 pups were born by one female in captivity (Ref. 57489).

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

Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)

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

  Onvoldoende gegevens (DD) ; Date assessed: 01 October 2005

CITES


CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Traumatogenic (Ref. 4716)





Gebruik door de mens

Visserij: van minder commercieel belang; Aquarium: Publieke aquaria
FAO - Publication: search | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Diet compositions
Food consumptions
Food rations
Predatoren
Ecology
Ecologie
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Mass conversions
Recruitments
Abundances
Life cycle
Voortplanting
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larvale populatiedynamiek
Distribution
Landen
FAO regio's
Ecosystemen
Voorkomen
Introducties
BRUVS - Videos
Anatomy
Gill areas
Hersenen
Otolieten
Physiology
Body compositions
Nutrients
Oxygen consumptions
Zwemtype
Swimming speeds
Visual pigment(s)
Visgeluiden
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquacultuurprofielen
Kweeklijnen
Ciguatera cases
Stamps, coins, misc.
Outreach
Medewerkers
References
Referenties

Tools

Speciale rapporten

Download XML

Internetbronnen

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
Generation time: 6.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec=16).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (54 of 100).
Prijsklasse (Ref. 80766):   Medium.