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Bay of Bengal blue-ringed octopus

Hapalochlaena nierstraszi

Kan doodmaakKan jou doodmaak sonder behandeling. As dit jou byt, kry vinnig hulp.

Keëlslakke & seekatte

ByteEet: Vleis

Gevaar vir mense: Baie gevaarlikDit kan 'n mens doodmaak wat geen behandeling kry nie.

The Bay of Bengal blue-ringed octopus is a small sea creature that hides in rock crevices and coral reefs. It is one of the most venomous marine animals in the world, even though it is only about the size of a hand. Its blue rings are a warning to keep away.1

Leef in

Bay of Bengal, Indian Ocean and Pacific Ocean, from Japan to Australia (blue-ringed octopuses in general)1

Indiese Oseaan, Andamansee, Baai van Bengale

Tuis

It lives in tide pools, between rocks, in crevices and shells, and on coral reefs. Blue-ringed octopuses hide in crevices and pile rocks at the entrance to their lairs.1

Lengte

12 cm tot 20 cm (4,7 in tot 7,9 in)1

Topspoed

omtrent 25 km/h (16 mph)

Swem, rowwe skatting

Wat eet dit?

It eats small crustaceans, including crabs, hermit crabs and shrimp, as well as fish. It pounces on its prey, seizes it with its arms, and pierces the shell or exoskeleton with its horny beak to release venom.1

Foto van Bay of Bengal blue-ringed octopus — Bay of Bengal blue-ringed octopus. Foto: Jens Petersen. CC BY 2.5, Wikimedia Commons.

Hoe om dit te herken

Yellowish skin with blue and black rings1
Small size, about 12 to 20 cm1
When provoked, it turns bright yellow and its rings flash bright iridescent blue within a third of a second1
Usually hides in crevices and is rarely seen out in the open1

Gifkrag

Byte

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

Wat doen sy gif as dit byt of steek?

Its venom contains tetrodotoxin, a neurotoxin (a poison that attacks the nerves). It causes paralysis of the muscles and can stop breathing within minutes. Victims stay fully aware but cannot move, and the venom can also cause nausea, heart failure and blindness.1

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: Baie gevaarlikDit kan 'n mens doodmaak wat geen behandeling kry nie.

The octopus carries enough venom to kill more than 20 adult humans within minutes. Its bites are tiny and often painless, so victims may not realise they have been bitten until breathing problems and paralysis begin. Estimates of recorded human deaths range from seven to 16, and most scholars agree at least 11 have occurred. Children are the most at risk because of their small body size.1

Wat doen dit as dit bang is?

It first tries to flee. If the threat continues, it takes a defensive stance and flashes its blue rings, and if cornered and touched it may bite.1

As dit byt

First aid is pressure on the wound, followed by artificial respiration as soon as paralysis stops the victim breathing. Respiratory support should continue until medical help arrives. In hospital, the patient is put on a ventilator until the toxin leaves the body, and those who survive the first 24 hours usually recover completely.1
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 Indiese Oseaan Andamansee Baai van Bengale

Hoe groot is dit?

Hoe lank is dit?

so lank soos 6 speelgoed-boublokke in 'n rykan die lengte van 'n groot swembad (50 m) in 7,2 sekondes swem

Hoe groot is Bay of Bengal blue-ringed 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)

Bay of Bengal blue-ringed octopus omtrent 25 km/h (16 mph)

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

die moeite werd om te weet

Feite

The blue-ringed octopus was the first animal reported to use tetrodotoxin as a venom. The same toxin is also found in pufferfish, rough-skinned newts and some poison dart frogs.1

The mother may inject the toxin into her eggs, which may then make their own venom before hatching.1

The octopus produces its venom using bacteria living inside its posterior salivary gland.1

Its blue rings flash in less than a third of a second, using muscles under nerve control. This is a warning display.1

The octopus's own body is resistant to its tetrodotoxin, so the venom does not harm it.1

In the 1983 James Bond film Octopussy, the blue-ringed octopus is the symbol of a secret order of female bandits and smugglers.1

Mite-breker

Mite: Because it is small and relatively docile, the blue-ringed octopus is harmless.

Waarheid: It is small and usually calm, but it is very dangerous if it is provoked or handled. Its venom can kill a healthy adult within minutes if not treated.1

Vir gifkenners

Wetenskaplike naam: Hapalochlaena nierstraszi
Groep: Keëlslakke & seekatte
Familie: Octopodidae2
Orde: Octopoda
Kontinente: Indiese Oseaan, Andamansee, Baai van Bengale, Die oseane
Babas: The female lays one clutch of about 50 eggs in late autumn and keeps them under her arms for about six months. She does not eat during this time, and she dies after the eggs hatch.1
Hoe dit in die natuur gaan: Least concern1
Gevaar vir mense: 4 / 5: Baie gevaarlik3

Waar die feite vandaan kom

Blue-ringed octopus (Wikipedia (CC BY-SA 4.0))
Hapalochlaena nierstraszi (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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