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Largespot river stingray

Potamotrygon falkneri
Oor die naam: Potamotrygon comes from the Greek words for 'river' and 'sting ray'. The species name honours Tomas Falkner, a British Jesuit priest who did scientific work in Argentina in the 1700s.1
Moet 'n dokter sienSelde dodelik, maar 'n steek moet deur 'n dokter gesien word.
Gevaar vir mense: Ernstig'n Steek moet deur 'n dokter gesien word. Sterftes is baie skaars.

The largespot river stingray is a freshwater stingray with a flat, round body covered in dense spots. It lives in the rivers of tropical and subtropical South America, mainly the Paraná-Paraguay river basin and parts of the upper Amazon. It is sometimes kept in aquariums, but it needs a very large tank.1

Leef in
Tropical and subtropical South America: the Paraná-Paraguay basin (southern Brazil, Paraguay, Uruguay, northeastern Argentina) and the upper Amazon Basin (Bolivia, eastern Peru, western Brazil)1
Suid-Amerika
Tuis
It lives in freshwater rivers. It is sometimes seen in the aquarium trade, where it needs a very large tank.1
Lengte
89 cm (2,9 ft)1
Topspoed
omtrent 16 km/h (9,9 mph)
Swem, rowwe skatting
Regtig waar!Foto van Largespot river stingray
Largespot river stingray. Foto: Donald Davesne. CC BY 4.0, iNaturalist.

Hoe om dit te herken

  • It is densely spotted on its upper side.1
  • The exact colour and pattern vary a lot between individuals, and many intermediate patterns exist.1
  • The disc (the flat body) reaches a width of up to 52 cm.1
  • Its total length, including the tail, reaches up to 89 cm.1

Word dikwels verwar met: The so-called 'tiger stingray' has often been mistaken for this species. It is a separate species, P. tigrina, which was only scientifically described in 2011.1

Gifkrag

Steke

Gif kom deur 'n angel uit.

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: Ernstig'n Steek moet deur 'n dokter gesien word. Sterftes is baie skaars.

As dit steek

  • Sit die wond in warm water, so warm as wat die persoon kan verdra sonder om te brand (toets dit met jou eie hand), vir 30 tot 90 minute. Kry mediese hulp, veral vir klipvisse en pylsterte.

Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels

Bly veilig

  • Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
  • Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
  • As een jou steek: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.

Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly

Hoe groot is dit?

Hoe lank is dit?

Largespot river stingray omtrent 89 cm lank (2,9 ft)'n Huiskat omtrent 50 cm (1,6 ft)'n Hond omtrent 1 m (3,3 ft)
so lank soos 2 huiskatte neus tot stertso lank soos 5 piesangs punt aan puntkan die lengte van 'n groot swembad (50 m) in 11 sekondes swem

Hoe groot is Largespot river stingray in vergelyking met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.

Hoe vinnig is dit?

die moeite werd om te weet

Feite

1

Its natural range was once cut off from the upper Paraná basin by the Guaíra Falls. After the Itaipu Dam was built, the falls disappeared, which let this species and several others spread into that area.1

2

Its spotted pattern is so variable that one pattern was once described as a separate species, P. castexi, and another as P. menchacai. All of these are now treated as variants of this species.1

3

It is sometimes kept in aquariums, but it needs a very large tank because of its size.1

Mite-breker

Mite: The 'tiger stingray' is the same animal as the largespot river stingray.

Waarheid: The tiger stingray is a separate species, P. tigrina, which was only scientifically described in 2011. It was earlier mistaken for P. menchacai, which is a name for this species.1

Vir gifkenners

Wetenskaplike naam
Potamotrygon falkneri
Groep
Giftige visse
Familie
Potamotrygonidae2
Orde
Myliobatiformes
Kontinente
Suid-Amerika
Gevaar vir mense
3 / 5: Ernstig3

Waar die feite vandaan kom

  1. Potamotrygon falkneri (Wikipedia (CC BY-SA 4.0))
  2. Potamotrygon falkneri (iNaturalist): name en klassifikasie.
  3. Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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Leef ook in: Suid-Amerika

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