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Risba: Largespot river stingray
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Largespot river stingray

Potamotrygon falkneri
O imenu: 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
Potreben je zdravnikLe redko smrtno nevarno, a po piku je potreben zdravnik.
Strupene ribe Piki
Nevarnost za ljudi: ResnoPo piku je potreben zdravnik. Smrtni primeri so zelo redki.

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

Živi v
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
Južna Amerika
Domov
It lives in freshwater rivers. It is sometimes seen in the aquarium trade, where it needs a very large tank.1
Dolžina
89 cm (2,9 ft)1
Največja hitrost
približno 16 km/h (9,9 mph)
Plavanje, groba ocena
Zares!Fotografija: Largespot river stingray
Largespot river stingray. Fotografija: Donald Davesne. CC BY 4.0, iNaturalist.

Kako jo prepoznaš

  • 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

Pogosto zamenjujejo z: 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

Moč strupa

Piki

Strup pride ven skozi želo.

Kako nevarna je za ljudi?

Nevarnost za ljudi: ResnoPo piku je potreben zdravnik. Smrtni primeri so zelo redki.

Če piči

  • Rano daj v vročo vodo, tako vročo, kot jo poškodovanec prenese, ne da bi se opekel (preizkusi jo s svojo roko), za 30 do 90 minut. Poišči zdravniško pomoč, še posebej pri kamnitih ribah in morskih bičih.

Vedno najprej pokliči številko za klic v sili (112, 000, 911). To so splošna navodila za prvo pomoč, ne zdravniški nasvet. Osnove prve pomoči

Ostani varen

  • Nikoli se ne dotikaj divje živali, je ne lovi in je ne draži, tudi če je majhna in tudi če je videti, kot da spi ali je mrtva.
  • Pusti ji prostor. Če jo srečaš, ostani miren, počasi stopi nazaj in jo pusti, da gre svojo pot.
  • Če te piči: ostani miren, ne premikaj se, pokliči številko za klic v sili (112, 000, 911) ali hitro pojdi v bolnišnico. Zapomni si, kako je izgledala, fotografija pomaga.

Ne preži nate. Strup uporablja, da ulovi hrano ali se zaščiti, in se veliko raje skrije. Več o varnosti

Kje na svetu?

AfrikaAzijaEvropaSeverna AmerikaJužna AmerikaAvstralija in Oceanija

Kako velika je?

Kako dolga je?

Largespot river stingray približno 89 cm dolga (2,9 ft)Domača mačka približno 50 cm (1,6 ft)Pes približno 1 m (3,3 ft)
dolga kot 2 domačih mačk od nosu do repadolga kot 5 banan, položenih ena za drugozmore preplavati dolžino velikega bazena (50 m) v 11 sekundah

Kakšne velikosti je Largespot river stingray v primerjavi s TABO?

Samo matematika v tvojem brskalniku. Nič se ne shrani in nič se nikamor ne pošlje.

Kako hitra je?

vredno vedeti

Dejstva

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

Razbijalec mitov

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

Resnica: 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

Za strokovnjake za strupe

Znanstveno ime
Potamotrygon falkneri
Skupina
Strupene ribe
Družina
Potamotrygonidae2
Red
Myliobatiformes
Celine
Južna Amerika
Nevarnost za ljudi
3 / 5: Resno3

Od kod so dejstva

  1. Potamotrygon falkneri (Wikipedia (CC BY-SA 4.0))
  2. Potamotrygon falkneri (iNaturalist): imena in razvrstitev.
  3. Venom Wiki: stopnja nevarnosti, tipična velikost in ocena hitrosti so naše lastne. Poglej, kako jih določimo: Kako ocenjujemo nevarnost.

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