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Risba: Blue-lined octopus
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Blue-lined octopus

Hapalochlaena fasciata
Smrtno nevarnaEna najbolj smrtonosnih živali na Zemlji. Če te ugrizne, takoj pokliči pomoč.Hitra pomoč in protistrup rešita večino ljudi. Takoj pokliči številko za klic v sili.
Stožčasti polži in hobotnice UgriziJe: Meso
Nevarnost za ljudi: Smrtno nevarnaEna najnevarnejših živali na svetu.

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

Živi v
Pacific Ocean, from Australia to Japan. Common off Australia, especially southern Queensland to southern New South Wales; also Japan and Jeju Island, Korea.1
Indijski ocean, Tihi ocean, Koralno morje
Domov
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
Dolžina
4,5 cm (1,8 in)1
Največja hitrost
približno 25 km/h (16 mph)
Plavanje, groba ocena
Kaj je?
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
Zares!Fotografija: Blue-lined octopus
Blue-lined octopus. Fotografija: Totti. CC BY-SA 4.0, Wikimedia Commons.

Kako jo prepoznaš

  • 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

Pogosto zamenjujejo z: 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

Moč strupa

Ugrizi

Strup pride ven skozi strupnike ali zobe, ko ugrizne.

Kaj naredi njen strup, ko ugrizne ali piči?

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

Kako nevarna je za ljudi?

Nevarnost za ljudi: Smrtno nevarnaEna najnevarnejših živali na svetu.

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

Kaj naredi, ko se prestraši?

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

Če ugrizne

  • Imobilizacija s pritiskom: čvrsto ovij elastični povoj čez ugriz in nato navzgor po celem udu, ud imobiliziraj z opornico in poškodovanca drži popolnoma pri miru, dokler ne pride pomoč.
  • Modroobročkasta hobotnica ali stožčasti polž lahko človeku ustavi dihanje, medtem ko je še pri zavesti: pokliči pomoč in bodi pripravljen dajati umetne vpihe, dokler reševalci ne prevzamejo.

Vedno najprej pokliči številko za klic v sili (112, 000, 911). To so splošna navodila za prvo pomoč, ne zdravniški nasvet. Osnove prve pomoči

Ostani varen

  • Nikoli se ne dotikaj divje živali, je ne lovi in je ne draži, tudi če je majhna in tudi če je videti, kot da spi ali je mrtva.
  • Pusti ji prostor. Če jo srečaš, ostani miren, počasi stopi nazaj in jo pusti, da gre svojo pot.
  • Če te ugrizne: ostani miren, ne premikaj se, pokliči številko za klic v sili (112, 000, 911) ali hitro pojdi v bolnišnico. Zapomni si, kako je izgledala, fotografija pomaga.

Ne preži nate. Strup uporablja, da ulovi hrano ali se zaščiti, in se veliko raje skrije. Več o varnosti

Kje na svetu?

AfrikaAzijaEvropaSeverna AmerikaJužna AmerikaAvstralija in OceanijaTihi oceanIndijski oceanKoralno morje

Kako velika je?

Kako dolga je?

Blue-lined octopus približno 4,5 cm dolga (1,8 in)Sponka za papir približno 3 cm (1,2 in)Pametni telefon približno 15 cm (5,9 in)
krajša od tvojega mezincazmore preplavati dolžino velikega bazena (50 m) v 7,2 sekundah

Kakšne velikosti je Blue-lined octopus v primerjavi s TABO?

Samo matematika v tvojem brskalniku. Nič se ne shrani in nič se nikamor ne pošlje.

Kako hitra je?

vredno vedeti

Dejstva

1

A single 25-gram blue-lined octopus carries enough venom to kill about ten adults weighing 75 kilograms each, according to estimates.1

2

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

3

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

4

The blue-lined octopus is the only one of the four blue-ringed species with lined blue markings instead of circular ones.1

5

Blue-lined octopuses are nocturnal hunters, while the greater blue-ringed octopus hunts during the day.1

6

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

Razbijalec mitov

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

Resnica: 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

Za strokovnjake za strupe

Znanstveno ime
Hapalochlaena fasciata
Skupina
Stožčasti polži in hobotnice
Družina
Octopodidae2
Red
Octopoda
Celine
Indijski ocean, Tihi ocean, Koralno morje, Oceani
Mladiči
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
Nevarnost za ljudi
5 / 5: Smrtno nevarna3

Od kod so dejstva

  1. Blue-lined octopus (Wikipedia (CC BY-SA 4.0))
  2. Hapalochlaena fasciata (iNaturalist): imena in razvrstitev.
  3. Venom Wiki: stopnja nevarnosti, tipična velikost in ocena hitrosti so naše lastne. Poglej, kako jih določimo: Kako ocenjujemo nevarnost.

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