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

Como recoñecelo
- 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
Adoita confundirse con: 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 da pezoña
A pezoña sae polos seus cairos ou dentes cando morde.
Que fai a súa pezoña?
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
Que perigoso é para as persoas?
Perigo para as persoas: MortalUn dos animais máis perigosos do mundo.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
Que fai cando ten medo?
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
Se morde
- Inmobilización con presión: envolve cunha venda elástica firme a mordedura e despois todo o membro cara arriba, ponlle unha férula e mantén a persoa completamente quieta ata que chegue a axuda.
- Un polbo de aneis azuis ou un caracol cono poden facer que unha persoa deixe de respirar mentres aínda está consciente: pide axuda e prepárate para darlle respiracións de rescate ata que a ambulancia se faga cargo.
Chama sempre primeiro ao teu número de emerxencias (112, 000, 911). Isto son consellos xerais de primeiros auxilios, non consello médico. Primeiros auxilios básicos
Mantente a salvo
- Nunca toques, collas nin molestes un animal salvaxe, aínda que sexa pequeno e aínda que pareza durmido ou morto.
- Déixalle espazo. Se atopas un, mantén a calma, recúa amodo e déixao ir polo seu camiño.
- Se un te morde: mantén a calma, non te movas, chama ao teu número de emerxencias (112, 000, 911) ou vai rápido a un hospital. Lembra como era, unha foto axuda.
Non vai a por ti. Usa a súa pezoña para cazar comida ou para defenderse, e prefire con moito agocharse. Máis sobre como estar a salvo
En que lugar do mundo?
Que tamaño ten?
Canto mide?
máis curto ca o teu dedo meniño
podería nadar o longo dunha piscina grande (50 m) en 7,2 segundosQue tamaño ten Blue-lined octopus comparado CONTIGO?
Só son contas no teu navegador. Non se garda nin se envía nada a ningures.
Que rápido é?
Datos
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
Desmontamitos
Mito: Because it is so shy, the blue-lined octopus is not really dangerous.
Verdade: 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
Para expertos en pezoñas
- Nome científico
- Hapalochlaena fasciata
- Grupo
- Caracois cono e polbos
- Familia
- Octopodidae2
- Orde
- Octopoda
- Continentes
- Océano Índico, Océano Pacífico, Mar do Coral, Os océanos
- Crías
- 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
- Perigo para as persoas
- 5 / 5: Mortal3
De onde veñen os datos
- Blue-lined octopus (Wikipedia (CC BY-SA 4.0))
- Hapalochlaena fasciata (iNaturalist): nomes e clasificación.
- Venom Wiki: o nivel de perigo, o tamaño típico e a velocidade estimada son nosos. Mira como os calculamos: Como valoramos o perigo.
Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos animais, non unha revista científica. Dínolo en [email protected] e arranxarémolo.
Morde

