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Igishushanyo cya By-the-wind sailor
No. 1118 kuri 1 402

By-the-wind sailor

Velella velella
Ibyerekeye izina: Its common name refers to its small sail, which catches the wind and carries the animal across the sea.1
Ntacyo itwayeNtacyo itwaye abantu. Nta mpamvu yo guhangayika.
Jellyfish n'izindi nyamaswa zo mu nyanja zitera urubori Imirya itera uruboriIrya: Inyama
Akaga ku bantu: YorohejeNko guterwa urubori n'uruyuki cyangwa munsi yaho. Mu by'ukuri ntacyo itwaye abantu.

The by-the-wind sailor is a small, deep blue animal that floats on the surface of the open ocean. It is not a single creature but a colony of tiny linked animals, and it moves by catching the wind with a small stiff sail. Its stinging tentacles are generally harmless to people, but they can irritate the skin.1

Iba muri
Warm and temperate waters of all the world's oceans1
Inyanja ya Pasifika, Inyanja ya Atalantika, Inyanja y'Abahinde, Inyanja ya Mediterane, Inyanja y'Amajyepfo, Antaragitika
Ahabanza
It lives at the surface of the open ocean, floating with its sail above the water and its polyps hanging about 1 cm below. Under certain winds, thousands can be washed up on beaches, such as along the West Coast of North America, the west coast of Ireland and Hayle in Cornwall, England.1
Uburebure
7 cm (2,8 in)1
Umuvuduko wo hejuru
hafi 1 km/h (0,62 mph)
Koga, ikigereranyo cy'ugereranyije
Irya iki?
It eats mostly plankton. It catches prey with tentacles that hang down in the water and bear stinging cells called nematocysts.1
Koko!Ifoto ya By-the-wind sailor
By-the-wind sailor. Ifoto: Niki Hubbard. CC BY 4.0, iNaturalist.

Uko wayimenya

  • Usually deep blue in colour1
  • A small, stiff sail projects above the water1
  • Most are less than about 7 cm long1
  • Tentacles hang down into the water below the float1

Imbaraga z'ubumara

Imirya itera urubori

Uturemangingo duto cyane ibihumbi dutera urubori turasa iyo hari ikidukozeho.

Ubumara bwayo bukora iki?

Its nematocysts contain toxins that are effective against its prey, which are mostly plankton. The nematocysts are relatively benign to humans, but each person may respond differently to the toxin. Contact may cause irritation to exposed skin.1

Iteje akaga kangana iki ku bantu?

Akaga ku bantu: YorohejeNko guterwa urubori n'uruyuki cyangwa munsi yaho. Mu by'ukuri ntacyo itwaye abantu.

It is relatively harmless to humans. Its main effect is possible skin irritation after contact. Mass strandings can leave large numbers of dying and rotting animals on beaches.1

Niba itera urubori

  • Sohoka mu mazi kandi ukureho imirya yayo (tentacles) yose ukoresheje uturindantoki cyangwa igitambaro.
  • Ku box jellyfish zo mu turere dushyuha: suka vinegere aho zateye urubori nibura amasegonda 30, hamagara ubutabazi kandi witegure gukora CPR (gukanda igituza no guhumekera umuntu). Ku bluebottle no ku zindi nyinshi: oza n'amazi y'inyanja, hanyuma ukoreshe amazi ashyushye kubera ububabare.

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 OseyaniyaAntaragitikaInyanja ya PasifikaInyanja ya AtalantikaInyanja y'AbahindeInyanja y'AmajyepfoInyanja ya Mediterane

Ingana gute?

Ireshya ite?

By-the-wind sailor ireshya hafi 7 cm (2,8 in)Trombone yo gufata impapuro hafi 3 cm (1,2 in)Telefoni igezweho hafi 15 cm (5,9 in)
ireshya n'ibice 2 by'ibikinisho byo kubaka biri ku murongoyakoga uburebure bw'ikidendezi kinini (metero 50) mu masegonda 180

By-the-wind sailor 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

Its floating colonies are mirror images of each other, either 'left-handed' or 'right-handed', and this affects where they drift. In the northern Pacific, one form tends to drift to North America and the other to eastern Asia, such as Japan.1

2

Each blue 'animal' with a sail is really a colony of linked polyps that share food through a canal system.1

3

Each colony is either all male or all female.1

4

Its sail is not a fin. It works like a sail, so the animal tends to drift downwind at a small angle to the wind.1

5

Its tiny jellyfish carry zooxanthellae, single-celled organisms that use sunlight to provide energy, a feature also found in corals.1

6

It has no means of moving other than its sail, so it depends on prevailing winds, and mass strandings on beaches happen in many parts of the world.1

Usenya ibinyoma

Ikinyoma: Each blue sail is a single, simple animal.

Ukuri: Each apparent individual is a colony of many connected polyps that share food and divide the work between feeding, reproductive and protective polyps.1

Ku bahanga mu by'ubumara

Izina rya siyansi
Velella velella
Itsinda
Jellyfish n'izindi nyamaswa zo mu nyanja zitera urubori
Umuryango
Porpitidae2
Itsinda rinini (order)
Anthoathecata
Imigabane
Inyanja ya Pasifika, Inyanja ya Atalantika, Inyanja y'Abahinde, Inyanja ya Mediterane, Inyanja y'Amajyepfo, Antaragitika, Inyanja ngari
Abana bato
Each colony's feeding polyps (gonozooids) bud off thousands of tiny jellyfish, each about 1 mm wide, over several weeks. These develop into a free-swimming larva called a conaria, which grows into a new floating colony.1
Akaga ku bantu
1 / 5: Yoroheje3

Aho ibintu bivugwa bituruka

  1. Velella (Wikipedia (CC BY-SA 4.0))
  2. Velella velella (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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