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Blue-lined octopus

Hapalochlaena fasciata

DodelikEen van die dodelikste diere op aarde. As dit jou byt, roep dadelik hulp.Vinnige hulp en teengif red die meeste mense. Bel dadelik jou noodnommer.

Keëlslakke & seekatte

ByteEet: Vleis

Gevaar vir mense: DodelikEen van die gevaarlikste diere in die wêreld.

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

Leef in

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

Indiese Oseaan, Stille Oseaan, Koraalsee

Tuis

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

Lengte

4,5 cm (1,8 in)1

Topspoed

omtrent 25 km/h (16 mph)

Swem, rowwe skatting

Wat eet dit?

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

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

Hoe om dit te herken

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

Word dikwels verwar met: 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

Gifkrag

Byte

Gif kom deur sy giftande of tande uit wanneer dit byt.

Wat doen sy gif as dit byt of steek?

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

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: DodelikEen van die gevaarlikste diere in die wêreld.

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

Wat doen dit as dit bang is?

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

As dit byt

Drukimmobilisasie: draai 'n stewige elastiese verband oor die byt en dan op oor die hele arm of been, spalk dit en hou die persoon heeltemal stil totdat hulp opdaag.
'n Blouring-seekat of keëlslak kan 'n mens se asemhaling laat stop terwyl hy nog wakker is: roep hulp en wees gereed om asemhaling (mond-tot-mond) te gee totdat die ambulans oorneem.

Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels

Bly veilig

Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
As een jou byt: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.

Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly

Waar in die wêreld?

Afrika Asië Europa Noord-Amerika Suid-Amerika Australië & Oseanië Stille Oseaan Indiese Oseaan Koraalsee

Hoe groot is dit?

Hoe lank is dit?

korter as jou pinkiekan die lengte van 'n groot swembad (50 m) in 7,2 sekondes swem

Hoe groot is Blue-lined octopus in vergelyking met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.

Hoe vinnig is dit?

'n Olimpiese swemmer omtrent 8 km/h (5 mph)

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

'n Dolfyn op volspoed omtrent 35 km/h (22 mph)

die moeite werd om te weet

Feite

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

Mite-breker

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

Waarheid: 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

Vir gifkenners

Wetenskaplike naam: Hapalochlaena fasciata
Groep: Keëlslakke & seekatte
Familie: Octopodidae2
Orde: Octopoda
Kontinente: Indiese Oseaan, Stille Oseaan, Koraalsee, Die oseane
Babas: 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
Gevaar vir mense: 5 / 5: Dodelik3

Waar die feite vandaan kom

Blue-lined octopus (Wikipedia (CC BY-SA 4.0))
Hapalochlaena fasciata (iNaturalist): name en klassifikasie.
Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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