Lion's mane jellyfish
The lion's mane jellyfish is one of the largest jellyfish known, and its bell can be over 2 m across in the far north. It lives in cold northern seas, including the English Channel, the North Sea and the Irish Sea. Its long, trailing stinging tentacles can wash up on beaches in late summer and autumn.1

Com reconèixer-lo
- Bell is divided into eight lobes, giving it the look of an eight-point star1
- Young ones are light orange or tan, darkening to red and purple as they grow1
- Long, thin, trailing tentacles, with many more tentacles around the mouth1
- Bell is often about 50 cm across in lower latitudes, and much larger in the far north1
- Usually found alone, rarely in groups1
Sovint es confon amb: The blue jellyfish (Cyanea lamarckii) is sometimes found in the same waters. It is blue rather than red, and smaller, with a bell of about 10 to 20 cm across.1
Poder del verí
Milers de cèl·lules urticants petitones es disparen quan alguna cosa les toca.
Què fa el seu verí?
Its tentacles carry stinging cells, called nematocysts, which inject a sting when touched. The sting is very painful and feels like intense itching or burning, and it can cause temporary pain and redness where the skin was touched. Stings across large parts of the body can cause whole-body (systemic) effects, and medical attention is recommended in that case.1
Com de perillós és per a les persones?
Perill per a les persones: DolorósPot fer molt de mal, però gairebé mai no és greu.Stings are not known to be fatal in healthy people, and there is normally no real danger, though people with special allergies may be at risk. Rare severe stings in deep water can cause panic, which may lead to drowning. In July 2010, about 150 beachgoers were stung by the remains of one broken-up jellyfish on a beach in New Hampshire, US.1
Si pica
- Vinegar can be used to deactivate the stinging cells. If you have touched a large number of tentacles, get medical attention after exposure.1
- Surt de l'aigua i treu els tentacles que quedin (amb guants o un drap).
- Per a les cubomeduses tropicals: tira vinagre sobre les picades durant almenys 30 segons, demana ajuda i prepara't per fer RCP. Per a les caravel·les portugueses i la majoria de les altres: esbandeix amb aigua de mar i després amb aigua calenta per al dolor.
Truca sempre primer al número d'emergències (112, 000, 911). Això són pautes generals de primers auxilis, no consells mèdics. Primers auxilis bàsics
Estigues segur
- No toquis, atrapis ni molestis mai un animal salvatge, encara que sigui petit i encara que sembli adormit o mort.
- Deixa-li espai. Si en trobes un, mantén la calma, recula a poc a poc i deixa que segueixi el seu camí.
- Si te'n pica un: mantén la calma, no et moguis, truca al número d'emergències (112, 000, 911) o ves de pressa a un hospital. Recorda com era, una foto ajuda.
No va a per tu. Fa servir el verí per caçar o per defensar-se, i prefereix mil vegades amagar-se. Més sobre com estar segur
On del món?
Que gran és?
Quant fa de llarg?
fa de llarg com 4 gats de casa del nas a la cua
fa de llarg com 12 plàtans en fila
podria nedar la llargada d'una piscina gran (50 m) en 140 segonsQue gran és Lion's mane jellyfish comparat amb TU?
Només càlculs al teu navegador. No es desa ni s'envia res enlloc.
Com de ràpid va?
Dades
The longest recorded tentacles were 36.6 m long, longer than a blue whale.1
Its tentacles can still sting for up to 25 days after they have detached from the jellyfish.1
Each of the eight lobes of its bell has about 70 to 150 tentacles, and it has around 1,200 tentacles near its mouth.1
The leatherback sea turtle feeds almost exclusively on lion's mane jellyfish in large numbers during summer around Eastern Canada.1
Unlike most jellyfish that drift in groups, the lion's mane is completely solitary.1
Desmuntamites
Mite: The lion's mane jellyfish is the longest animal in the world.
Veritat: This claim was made on a TV show, but it was corrected. A bootlace worm reported in 1864 was said to be over 55 m long, and that report is doubted because bootlace worms can stretch well beyond their natural length. If that report is wrong, the lion's mane would be the longest animal.1
Per a experts en verins
- Nom científic
- Cyanea capillata
- Grup
- Meduses i altres urticants marins
- Família
- Cyaneidae2
- Ordre
- Semaeostomeae
- Continents
- Oceà Àrtic, Oceà Atlàntic, Oceà Pacífic, Mar del Nord, Els oceans
- Cries
- The female carries fertilised eggs in a tentacle, and they grow into larvae that settle on a hard surface and become polyps, which then produce young jellyfish called ephyrae.1
- Esperança de vida
- uns 1 anys1
- Perill per a les persones
- 2 / 5: Dolorós3
D'on surten les dades
- Lion's mane jellyfish (Wikipedia (CC BY-SA 4.0))
- Cyanea capillata (iNaturalist): noms i classificació.
- Venom Wiki: el nivell de perill, la mida típica i la velocitat estimada són nostres. Mira com els calculem: Com valorem el perill.
Cada dada d'aquesta pàgina té un número que porta a la seva font. Si ens hem equivocat en alguna cosa, perdona, som fans dels animals, no una revista científica. Escriu-nos a [email protected] i ho arreglarem.
Tentacles urticants

