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Igishushanyo cya Blue sea dragon
No. 1173 kuri 1 402

Blue sea dragon

Glaucus atlanticus
Ibyerekeye izina: The generic name Glaucus comes from the Ancient Greek word glaukós, meaning "bluish-grey", "bluish-green" or "gleaming".1
Irababaza gusaIrababaza, ariko ntizakugirira nabi bikomeye.
Cone snail na octopus Itera uruboriIrya: Inyama
Akaga ku bantu: IrababazaIshobora kubabaza cyane, ariko hafi ya buri gihe nta kibazo gikomeye biteza.

The blue sea dragon is a small, bright blue sea slug that floats upside down on the open ocean. It drifts with winds and currents in warm and temperate seas around the world. It is special because it steals stinging cells from the animals it eats and uses them as its own weapon.1

Iba muri
Warm and temperate oceans worldwide, including South Africa, Europe, eastern Australia, Brazil, India and Thailand1
Inyanja ya Atalantika, Inyanja ya Pasifika, Inyanja y'Abahinde
Ahabanza
It lives in the open ocean (the pelagic zone) and is carried by winds and currents. Because it sometimes washes up on shore, people may find it on beaches, for example in Thailand, Spain and Texas.1
Uburebure
3 cm (1,2 in)1
Umuvuduko wo hejuru
hafi 0,01 km/h (0,01 mph)
Koga, ikigereranyo cy'ugereranyije
Irya iki?
It feeds on other floating sea animals, including the Portuguese man o' war and other venomous siphonophores. It bites off chunks of its prey with serrated teeth and a strong jaw.1
Koko!Ifoto ya Blue sea dragon
Blue sea dragon. Ifoto: Sylke Rohrlach. CC BY-SA 4.0, iNaturalist.

Uko wayimenya

  • Usually around 3 cm long1
  • Floats upside down at the surface, with its blue side facing up1
  • Silvery grey on its back, which faces down in the water1
  • Dark blue stripes on its head1
  • Six finger-like, feathery appendages called cerata1

Ikunze kwitiranywa na: It is closely related to G. marginatus, which is now known to be four separate species living in the Indian and Pacific Oceans. It also shares the name "blue dragon" with Pteraeolidia ianthina and G. marginatus.1

Imbaraga z'ubumara

Itera urubori

Ubumara busohokera mu rubori.

Ubumara bwayo bukora iki?

It does not make its own venom. It takes the stinging cells (nematocysts) from the Portuguese man o' war and stores them in its cerata, a process called kleptocnidy. Because it concentrates this venom, its sting can be stronger than that of the animal it eats. Symptoms can include pain, nausea, vomiting, a rash, redness and blisters.1

Iteje akaga kangana iki ku bantu?

Akaga ku bantu: IrababazaIshobora kubabaza cyane, ariko hafi ya buri gihe nta kibazo gikomeye biteza.

Picking up the animal can cause a very painful sting that may be potentially dangerous. Its sting produces symptoms similar to those of the Portuguese man o' war.1

Ikora iki iyo ifite ubwoba?

It stores stinging cells from its prey in its cerata and uses them against predators.1

Niba itera urubori

  • Gupfuka ukanda no kudanyeganyeza (pressure immobilisation): zingira bande ikweduka kandi ifashe neza hejuru y'aho yarumye, hanyuma uzamuke ku rugingo rwose, urushyireho agati ko kurukomeza (attelle), kandi umuntu agume atanyeganyega na gato kugeza ubutabazi buhageze.
  • Octopus ifite impeta z'ubururu cyangwa cone snail bishobora gutuma umuntu ahagarika guhumeka nyamara akiri maso: hamagara ubutabazi kandi witegure kumuhumekera mu kanwa kugeza igihe abo mu mbangukiragutabara bagusimbuye.

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 ya AtalantikaInyanja y'Abahinde

Ingana gute?

Ireshya ite?

Blue sea dragon ireshya hafi 3 cm (1,2 in)Trombone yo gufata impapuro hafi 3 cm (1,2 in)Telefoni igezweho hafi 15 cm (5,9 in)
ireshya hafi na trombone yo gufata impapuroitinda kurusha ikinyamushongo cyo mu murima

Blue sea dragon 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 eat the Portuguese man o' war without harm, because it is immune to that animal's stinging cells.1

2

It floats upside down because its gas-filled stomach sac sits on the wrong side of its body, so its foot becomes its upper surface.1

3

Its blue colour is thought to reflect harmful ultraviolet sunlight.1

4

Its countershading, with blue on top and silver-grey below, helps it hide from predators above and below.1

5

It can lay up to 55 egg strings per hour.1

Ku bahanga mu by'ubumara

Izina rya siyansi
Glaucus atlanticus
Itsinda
Cone snail na octopus
Umuryango
Glaucidae2
Itsinda rinini (order)
Nudibranchia
Imigabane
Inyanja ya Atalantika, Inyanja ya Pasifika, Inyanja y'Abahinde, Inyanja ngari
Abana bato
After mating, both partners lay egg strings with up to 20 eggs on each string, often in wood or on carcasses.1
Igihe ibaho
hafi imyaka 11
Akaga ku bantu
2 / 5: Irababaza3

Aho ibintu bivugwa bituruka

  1. Glaucus atlanticus (Wikipedia (CC BY-SA 4.0))
  2. Glaucus atlanticus (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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