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Blue-lined octopus

Hapalochlaena fasciata

HilgarriaLurreko animaliarik hilgarrienetako bat. Kosk egiten badizu, eskatu laguntza berehala.Laguntza azkarrak eta antipozoiak pertsona gehienak salbatzen dituzte. Deitu zure larrialdi-zenbakira berehala.

Kono-barraskiloak eta olagarroak

KoskaJaten du: Haragia

Arriskua pertsonentzat: HilgarriaMunduko animaliarik arriskutsuenetako bat.

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

Non bizi den

Pacific Ocean, from Australia to Japan. Common off Australia, especially southern Queensland to southern New South Wales; also Japan and Jeju Island, Korea.1

Ozeano Indikoa, Ozeano Barea, Koralen itsasoa

Hasiera

It lives in shallow tropical and subtropical reef waters, tide pools and intertidal rocky shores, in coastal waters down to 15 metres. It hides in reef crevices and empty seashells, so people may come across it while exploring rock pools or reefs.1

Luzera

4,5 cm (1,8 in)1

Abiadura handiena

25 km/h inguru (16 mph)

Igeriketa, kalkulu gutxi gorabeherakoa

Zer jaten du?

It mostly eats crustaceans and stomatopods (mantis shrimps). In captivity it has also eaten live fish. It traps its prey inside its arms and pierces it with its parrot-like beak.1

Argazkia: Blue-lined octopus — Blue-lined octopus. Argazkia: Totti. CC BY-SA 4.0, Wikimedia Commons.

Nola ezagutu

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

Askotan honekin nahasten da: 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

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

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

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: HilgarriaMunduko animaliarik arriskutsuenetako bat.

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

Zer egiten du beldurtzen denean?

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

Kosk egiten badu

Presio-immobilizazioa: bildu benda elastiko sendo bat koskaren gainean eta gero gorputz-adar osoan gora, immobilizatu ferula batekin, eta eutsi pertsona guztiz geldi laguntza iritsi arte.
Eraztun urdineko olagarro batek edo kono-barraskilo batek pertsona baten arnasketa gelditu dezake, pertsona hori oraindik esna dagoela: eskatu laguntza eta egon prest erreskate-arnasketak emateko anbulantziak ardura hartu arte.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
Batek kosk egiten badizu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Munduko zein tokitan?

Afrika Asia Europa Ipar Amerika Hego Amerika Australia eta Ozeania Ozeano Barea Ozeano Indikoa Koralen itsasoa

Zein handia da?

Zein luzea da?

zure hatz txikia baino laburragoaigerileku handi baten luzera (50 m) igerian egin lezake 7,2 segundotan

Zein handia da Blue-lined octopus ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

Igerilari olinpiko bat 8 km/h inguru (5 mph)

Blue-lined octopus 25 km/h inguru (16 mph)

Izurde bat abiadura betean 35 km/h inguru (22 mph)

jakin beharrekoa

Datuak

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

Mito-hauslea

Mitoa: Because it is so shy, the blue-lined octopus is not really dangerous.

Egia: 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

Pozoi-adituentzat

Izen zientifikoa: Hapalochlaena fasciata
Taldea: Kono-barraskiloak eta olagarroak
Familia: Octopodidae2
Ordena: Octopoda
Kontinenteak: Ozeano Indikoa, Ozeano Barea, Koralen itsasoa, Ozeanoak
Kumeak: 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
Arriskua pertsonentzat: 5 / 5: Hilgarria3

Datuak nondik datozen

Blue-lined octopus (Wikipedia (CC BY-SA 4.0))
Hapalochlaena fasciata (iNaturalist): izenak eta sailkapena.
Venom Wiki: arrisku-maila, ohiko tamaina eta abiadura-kalkulua geureak dira. Ikusi nola kalkulatzen ditugun: Nola baloratzen dugun arriskua.

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