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Pelagic stingray

Pteroplatytrygon violacea

Kuhusu jina: The scientific name comes from Greek words meaning 'wing' or 'fin', 'broad' and 'stingray', plus the Latin for 'purple', which refers to its colour.1

Anahitaji daktariMara chache huua, lakini kudungwa kunahitaji daktari.

Samaki wenye sumu

KudungwaHula: Nyama

Hatari kwa watu: MbayaKudungwa kunahitaji daktari. Vifo ni nadra sana.

The pelagic stingray is a ray that lives in the open ocean rather than on the sea floor, which sets it apart from almost all other stingrays. It is found in warm waters around much of the world. It can give a severe sting with its tail spine, so it matters most to people who work on fishing boats.1

Anaishi

Worldwide in warm tropical to warm-temperate ocean waters, between about 52°N and 50°S1

Bahari ya Atlantiki, Bahari ya Pasifiki, Bahari ya Hindi, Bahari ya Mediterania, Bahari ya Karibi

Nyumbani

It lives in the open ocean, usually in surface waters down to about 100 m over deep water. It prefers water warmer than 19 °C and moves seasonally with warm water masses. People most often meet it as bycatch on fishing boats.1

Urefu

1.3 m (4.3 ft)1

Uzito

49 kg (108 lb)1

Kasi ya juu

takriban km 21 kwa saa (maili 13 kwa saa)

Kuogelea, makadirio

Hula nini?

It is an active hunter that wraps its pectoral fins around prey and moves it to its mouth. It eats crustaceans, squid and octopus, bony fishes such as herring and mackerel, jellyfish and comb jellies, and polychaete worms.1

Picha ya Pelagic stingray — Pelagic stingray. Picha: Diego Delso. CC BY-SA 4.0, Wikimedia Commons.

Jinsi ya kumtambua

The pectoral fin disc is a thick, wedge-shaped wing that is about one-third wider than it is long.1
It is a plain dark purple to blue-green above, with a slightly lighter shade below.1
The tail is whip-like, up to twice as long as the disc, with an extremely long, serrated spine about a third to halfway along it.1
Young rays are smooth-skinned, and small prickles and thorns appear with age.1

Nguvu ya sumu

Kudungwa

Sumu hutoka kupitia mdungo.

Sumu yake hufanya nini?

The venom is on the tail spine and is quite potent, which is why other fishes avoid it.1

Ana hatari gani kwa watu?

Hatari kwa watu: MbayaKudungwa kunahitaji daktari. Vifo ni nadra sana.

It is rarely encountered except by fishery workers. Its tail spine can inflict a severe wound that can be fatal.1

Hufanya nini akiogopa?

When captured and handled, it releases a thick black mucus that covers its body, and its tail spine delivers venom.1

Akidunga

Weka jeraha kwenye maji ya moto, moto kiasi ambacho mtu anaweza kuvumilia bila kuungua (pima kwanza kwa mkono wako), kwa dakika 30 hadi 90. Tafuta msaada wa kitabibu, hasa kwa samaki-jiwe na taa.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Akikudunga: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania Bahari ya Pasifiki Bahari ya Atlantiki Bahari ya Hindi Bahari ya Mediterania Bahari ya Karibi

Ana ukubwa gani?

Ana urefu gani?

Ana uzito gani?

uzito sawa na mbwa 2.5

urefu sawa na paka wa nyumbani 2.5 kutoka pua hadi mkiaurefu sawa na ndizi 7 zilizopangwa mstariangeweza kuogelea urefu wa bwawa kubwa (m 50) kwa sekunde 8.6

Pelagic stingray ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Mwogeleaji wa Olimpiki takriban km 8 kwa saa (5 mph)

Pelagic stingray takriban km 21 kwa saa (13 mph)

Pomboo kwa kasi kamili takriban km 35 kwa saa (22 mph)

inafaa kujua

Ukweli

It is the only stingray that almost exclusively lives in the open ocean rather than on the sea floor.1

Instead of rippling the edges of its disc like other stingrays, it swims by flapping its pectoral fins, similar to eagle rays.1

Both sexes have pointed teeth, which is unusual among stingrays. Only the teeth of adult males are longer and sharper.1

Females can store sperm inside their bodies for more than a year, waiting for good conditions before their young develop.1

A captive female reached 94 cm across and 49 kg, the largest individual on record from a rearing experiment.1

Oceanic whitetip sharks, great white sharks and toothed whales prey on it.1

Kwa wataalamu wa sumu

Jina la kisayansi: Pteroplatytrygon violacea
Kundi: Samaki wenye sumu
Familia: Dasyatidae2
Mpangilio: Myliobatiformes
Mabara: Bahari ya Atlantiki, Bahari ya Pasifiki, Bahari ya Hindi, Bahari ya Mediterania, Bahari ya Karibi, Bahari kuu
Watoto: It gives birth to live young. Females may bear two litters of 4 to 13 pups per year after a gestation of 2 to 4 months.1
Hali yake porini: Least Concern1
Hatari kwa watu: 3 / 5: Mbaya3

Ukweli unatoka wapi

Pelagic stingray (Wikipedia (CC BY-SA 4.0))
Pteroplatytrygon violacea (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

Kila ukweli kwenye ukurasa huu una namba inayoonyesha chanzo chake. Kama tumekosea kitu, samahani, sisi ni wapenzi wa wanyama, si jarida la kisayansi. Tuambie kupitia [email protected] nasi tutarekebisha.

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