Blue-lined octopus
The blue-lined octopus is a small sea creature, about the size of a golf ball, that lives in shallow reefs and rock pools in the Pacific Ocean. It is one of the most dangerous animals in the sea, because its bite contains venom that can be fatal to people. It is shy and usually hides, but its bright blue lines are a clear warning to leave it alone.1

Com reconèixer-lo
- At rest, its body is mottled yellow-brown with dark blue or black streaks, and its underside is paler.1
- When it feels threatened, it shows bright, iridescent blue lines across its body.1
- It is small, with a mantle (main body) up to 45 mm long, about the size of a golf ball.1
- Its blue markings are lines, not rings.1
- The visceral hump (the bulge behind the head) is regularly pointed.1
Sovint es confon amb: The greater blue-ringed octopus, southern blue-ringed octopus and blue-ringed octopus have circular blue rings rather than lines. The blue-lined octopus is also the smallest of the four species in its genus.1
Poder del verí
El verí surt pels ullals o les dents quan mossega.
Què fa el seu verí?
Its venom is tetrodotoxin (TTX), a neurotoxic venom, which attacks the nerves. A bite may not be felt at first. After some time, symptoms include loss of feeling in the tongue and lips, muscle weakness or paralysis, respiratory failure (breathing failure), and unconsciousness, which can lead to death.1
Com de perillós és per a les persones?
Perill per a les persones: MortalUn dels animals més perillosos del món.It is regarded as one of the most dangerous animals in the sea, and its venom can be fatal to humans. At least three human deaths have been reported. The greatest risk is to people who pick it up or touch it.1
Què fa quan té por?
When threatened, it displays bright blue warning lines to predators, and it is more likely to flee and hide in shelter than to fight.1
Si mossega
- Immobilització amb pressió: embolica amb una bena elàstica ferma la mossegada i després tota l'extremitat, posa-hi una fèrula i mantén la persona completament quieta fins que arribi l'ajuda.
- Un pop d'anells blaus o un cargol con poden aturar la respiració d'una persona mentre encara està desperta: demana ajuda i prepara't per fer respiracions de rescat fins que l'ambulància se'n faci càrrec.
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 mossega 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?
més curt que el teu dit petit
podria nedar la llargada d'una piscina gran (50 m) en 7,2 segonsQue gran és Blue-lined octopus comparat amb TU?
Només càlculs al teu navegador. No es desa ni s'envia res enlloc.
Com de ràpid va?
Dades
A single 25-gram blue-lined octopus carries enough venom to kill about ten adults weighing 75 kilograms each, according to estimates.1
Male blue-lined octopuses bite the female's aorta during mating, injecting TTX. This paralyses her within about 8 minutes, which lets the male transfer his sperm packets safely.1
Hapalochlaena is the only octopus genus known to produce TTX, a toxin thought to have played an important role in the evolution of the species.1
The blue-lined octopus is the only one of the four blue-ringed species with lined blue markings instead of circular ones.1
Blue-lined octopuses are nocturnal hunters, while the greater blue-ringed octopus hunts during the day.1
Its range has been spreading across the Pacific. Warming ocean water may be shifting suitable habitat, and scientists monitor this for public health and safety.1
Desmuntamites
Mite: Because it is so shy, the blue-lined octopus is not really dangerous.
Veritat: It is extremely shy and usually flees, but its venom can still be fatal to people, and at least three deaths have been reported.1
Per a experts en verins
- Nom científic
- Hapalochlaena fasciata
- Grup
- Cargols con i pops
- Família
- Octopodidae2
- Ordre
- Octopoda
- Continents
- Oceà Índic, Oceà Pacífic, Mar del Corall, Els oceans
- Cries
- A female lays 50 to 100 large eggs about 30 days after mating, hides them under her arms until they hatch, and then dies. The hatchlings take about two months to develop.1
- Perill per a les persones
- 5 / 5: Mortal3
D'on surten les dades
- Blue-lined octopus (Wikipedia (CC BY-SA 4.0))
- Hapalochlaena fasciata (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.
Mossegades

