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Igishushanyo cya Short-tail stingray
No. 1243 kuri 1 402

Short-tail stingray

Bathytoshia brevicaudata
Ibyerekeye izina: The scientific name Bathytoshia brevicaudata comes from the Latin words brevis (short) and cauda (tail), which refer to its short tail.1
Ishobora kwicaIshobora kukwica niba utavuwe. Niba igutereye urubori, shaka ubufasha vuba.
Amafi afite ubumara Itera uruboriIrya: Inyama
Akaga ku bantu: Iteje akaga cyaneIshobora kwica umuntu utavuwe.

The short-tail stingray is one of the largest stingrays in the world. It lives in temperate seas off southern Africa, southern Australia and New Zealand, mostly on or near the sea floor. It is not aggressive, but its long venomous sting can cause a serious wound if the ray is startled.1

Iba muri
Temperate waters of the Southern Hemisphere: southern Africa, southern Australia, including Tasmania, and New Zealand1
Inyanja y'Abahinde, Inyanja ya Pasifika, Inyanja ya Korali
Ahabanza
It lives on the bottom in estuaries, sheltered bays, sandy flats, rocky reefs and the outer continental shelf, and sometimes swims up into open water. Off southern Africa it is usually found offshore, at depths of 180 to 480 m. Off Australia and New Zealand it can be found from the intertidal zone down to 156 m. At Hamelin Bay in Western Australia, many rays gather where visitors hand-feed them fish scraps.1
Uburebure
4,3 m (14 ft)1
Ibiro
350 kg (772 lb)1
Umuvuduko wo hejuru
hafi 30 km/h (19 mph)
Koga, ikigereranyo cy'ugereranyije
Irya iki?
It eats bony fishes and invertebrates such as molluscs and crustaceans, including burrowing species. It finds buried bivalves and spoon worms by detecting the tiny water jets they produce, then sucks them out of the sediment. It also eats open-water animals such as salps and hyperiid amphipods.1
Koko!Ifoto ya Short-tail stingray
Short-tail stingray. Ifoto: Alpha from Melbourne, Australia. CC BY-SA 2.0, Wikimedia Commons.

Uko wayimenya

  • Diamond-shaped, heavy disc that is smooth, with no scales (dermal denticles) on the disc even in adults1
  • Plain grey-brown back, darkening towards the tail and above the eyes, with a line of white pores on either side of the head1
  • Whitish underside, darkening towards the edges of the fins1
  • Tail usually shorter than the disc, thick at the base, with one or two serrated stinging spines about halfway along it1
  • Adults have a row of large, spear-like thorns in front of the sting1

Ikunze kwitiranywa na: The pitted stingray (Dasyatis matsubarai) of the northwestern Pacific looks similar but is smaller. Records of this species from northern Australia and Thailand are thought to be other rays that were misidentified.1

Imbaraga z'ubumara

Itera urubori

Ubumara busohokera mu rubori.

Ubumara bwayo bukora iki?

Its sting is venomous. The mucous sheath covering the sting contains a toxin that causes necrosis, which means the death of body tissue. The most dangerous injuries involve damage to a vital organ, heavy blood loss, or secondary infection (sepsis) or tetanus.1

Iteje akaga kangana iki ku bantu?

Akaga ku bantu: Iteje akaga cyaneIshobora kwica umuntu utavuwe.

The short-tail stingray is not aggressive, but if startled or harassed it can inflict a serious and even fatal wound. Its sting can be over 30 cm long and can penetrate most footwear, including kevlar bootees. It is responsible for most stingray injuries off New Zealand, including the death of Australian naturalist Steve Irwin, who was pierced in the chest by its barbed tail.1

Ikora iki iyo ifite ubwoba?

When threatened, it raises its tail over its back like a scorpion, and a startled ray can leap through the water and strike with its tail.1

Niba itera urubori

  • Shyira igikomere mu mazi ashyushye, ashyushye uko umuntu abyihanganira atiriwe ashya (bigerageze ukoresheje ukuboko kwawe), mu gihe cy'iminota 30 kugeza kuri 90. Shaka ubufasha bwa muganga, cyane cyane ku bya stonefish na stingray.

Buri gihe banza uhamagare nimero y'ubutabazi (112, 000, 911). Izi ni inama rusange z'ubutabazi bw'ibanze, si inama za muganga. Ibanze by'ubutabazi bw'ibanze

Irinde akaga

  • Ntuzigere ukora, ufata cyangwa ushotora inyamaswa yo mu gasozi, nubwo yaba ntoya, kandi nubwo yasa n'isinziriye cyangwa yapfuye.
  • Yihe umwanya. Niba uhuye n'imwe, tuza, usubire inyuma buhoro buhoro kandi uyireke yigendere.
  • Niba imwe igutereye urubori: tuza, ntunyeganyege, hamagara nimero y'ubutabazi (112, 000, 911) cyangwa ujye ku bitaro vuba. Ibuka uko yasaga, ifoto irafasha.

Ntigushakisha ngo ikugirire nabi. Ikoresha ubumara bwayo kugira ngo ifate ibyo kurya cyangwa yirinde, kandi ikunda cyane kwihisha. Ibindi ku kwirinda

Ni hehe ku isi?

AfurikaAziyaUburayiAmerika y'AmajyaruguruAmerika y'AmajyepfoOsitaraliya na OseyaniyaInyanja ya PasifikaInyanja y'AbahindeInyanja ya Korali

Ingana gute?

Ireshya ite?

Short-tail stingray ireshya hafi 4,3 m (14 ft)Igare ry'umuntu mukuru hafi 1,8 m (5,9 ft)Imodoka hafi 4,5 m (15 ft)

Iremera ibingana iki?

iremera nk'imbwa 18
ireshya n'imbwa 4 zikurikiranye kuva ku zuru kugeza ku murizoireshya n'imineke 24 ikurikiranyeyakoga uburebure bw'ikidendezi kinini (metero 50) mu masegonda 6

Short-tail stingray ingana ite ugereranyije NAWE?

Ni imibare gusa ikorerwa muri mudasobwa yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihuta gute?

bikwiye kumenywa

Ibintu by'ukuri

1

It can flap its pectoral fins with enough force to make a loud audible 'bang' in the water, although it is usually slow-moving.1

2

It is one of the largest stingrays in the world, and reliable observers off New Zealand have reported individuals almost 3 m across.1

3

Captive experiments suggest it can detect magnetic fields, which may help it navigate.1

4

Every summer, large groups gather under the rocky archways of the Poor Knights Islands off New Zealand, where both mating and birthing have been seen.1

5

Captive females have been observed mating with up to three different males in succession.1

Ku bahanga mu by'ubumara

Izina rya siyansi
Bathytoshia brevicaudata
Itsinda
Amafi afite ubumara
Umuryango
Dasyatidae2
Itsinda rinini (order)
Myliobatiformes
Imigabane
Inyanja y'Abahinde, Inyanja ya Pasifika, Inyanja ya Korali, Inyanja ngari
Abana bato
It gives birth to live young. Females usually have litters of 6 to 10 pups in summer, and newborns measure 32 to 36 cm across.1
Uko imeze mu gasozi
Least Concern (IUCN)1
Akaga ku bantu
4 / 5: Iteje akaga cyane3

Aho ibintu bivugwa bituruka

  1. Short-tail stingray (Wikipedia (CC BY-SA 4.0))
  2. Bathytoshia brevicaudata (iNaturalist): amazina n'ibyiciro.
  3. Venom Wiki: urwego rw'akaga, ingano isanzwe n'ikigereranyo cy'umuvuduko ni ibyacu bwite. Reba uko tubibara: Uko tugena akaga.

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