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Blue sea dragon

Glaucus atlanticus

Davart il num: The generic name Glaucus comes from the Ancient Greek word glaukós, meaning "bluish-grey", "bluish-green" or "gleaming".1

Fa mo malQuai fa mal, ma i na ta fa nagin donn serius.

Lindornas conicas e polips

PiztgadasMangia: Charn

Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

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

Viva en

Warm and temperate oceans worldwide, including South Africa, Europe, eastern Australia, Brazil, India and Thailand1

Ocean Atlantic, Ocean Pacific, Ocean Indic

Pagina iniziala

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

Lunghezza

3 cm (1,2 in)1

Sveltezza maximala

circa 0,01 km/h (0,01 mph)

Nudar, stima approximativa

Tge mangia el?

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

Foto da Blue sea dragon — Blue sea dragon. Foto: Sylke Rohrlach. CC BY-SA 4.0, iNaturalist.

Co renconuscher el

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

Savens confundì cun: 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

Forza dal tissi

Piztgadas

Il tissi vegn or tras in aguigl.

Tge fa ses tissi?

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

Quant privlus è el per umans?

Privel per umans: DolurusQuai po far propi mal, ma i n'è bunamain mai grav.

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

Tge fa el, cura ch'el ha tema?

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

Sch'el piztga

Immobilisaziun cun squitsch: envolva ina bandascha elastica ferma sur la morsa e lura vi da l'entir member ensi, fixescha el cun ina stecca e tegna la persuna dal tut immobila, fin che l'agid arriva.
In polip cun anels blaus u ina lindorna conica po far che ina persuna na respira betg pli, entant ch'ella è anc dasda: clama agid e sajas pront da dar respiraziun artifiziala, fin che l'equipa da l'ambulanza surpiglia.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
Sch'in tal animal ta piztga: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

Africa Asia Europa America dal Nord America dal Sid Australia ed Oceania Ocean Pacific Ocean Atlantic Ocean Indic

Quant grond è el?

Quant lung è el?

var uschè lung sco in clip da palpiripli plaun ch'ina lindorna da curtin

Quant grond è Blue sea dragon cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

In chaval da mar circa 0,0015 km/h (0 mph)

Blue sea dragon circa 0,01 km/h (0,01 mph)

Ina lindorna da curtin circa 0,05 km/h (0,03 mph)

bun da savair

Fatgs

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

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

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

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

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

Per experts da tissi

Num scientific: Glaucus atlanticus
Gruppa: Lindornas conicas e polips
Famiglia: Glaucidae2
Urden: Nudibranchia
Continents: Ocean Atlantic, Ocean Pacific, Ocean Indic, Ils oceans
Poppins: After mating, both partners lay egg strings with up to 20 eggs on each string, often in wood or on carcasses.1
Durada da vita: circa 1 onns1
Privel per umans: 2 / 5: Dolurus3

Da nua che vegnan ils fatgs

Glaucus atlanticus (Wikipedia (CC BY-SA 4.0))
Glaucus atlanticus (iNaturalist): nums e classificaziun.
Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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