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Southern blue-ringed octopus

Hapalochlaena maculosa

Oor die naam: It is named for the vibrant blue rings it shows when it is agitated.1

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 southern blue-ringed octopus is a small octopus that lives in tidal rock pools and rocky reefs along the south coast of Australia. It is one of four extremely venomous blue-ringed octopus species. Its body is usually drab, but its blue rings flash when it feels threatened.1

Leef in

Southern coasts of Australia1

Indiese Oseaan, Stille Oseaan

Tuis

It lives in tidal rock pools and in crevasses and cracks in rocky reefs. It also lives close to seagrass beds. Like other blue-ringed octopuses, it lives in burrows.1

Lengte

20 cm (7,9 in)1

Topspoed

omtrent 25 km/h (16 mph)

Swem, rowwe skatting

Wat eet dit?

It eats mostly lobsters, crabs, shrimp and shellfish, including bivalve molluscs, and sometimes small fish. It pins down prey and injects venom through its beak, which paralyses the prey. It can also release venom as a mist into areas where prey gathers, so that prey swim into it and become paralysed.1

Foto van Southern blue-ringed octopus — Southern blue-ringed octopus. Foto: Christopher Mark. CC BY 4.0, iNaturalist.

Hoe om dit te herken

When calm, its colour is a drab, mucus-like colour.1
When threatened or aggravated, about 60 rings suddenly appear and flash blue-green.1
As an adult, it is up to 20 cm long, from the top of the mantle to the tip of the arms.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 contains maculotoxin, a deadly neurotoxin (a poison that attacks the nerves), and tetrodotoxin (TTX), also a neurotoxin. Without immediate medical attention, a bite is often fatal to humans.1

Hoe gevaarlik is dit vir mense?

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

The octopus is normally docile, but its venom can kill a human. A bite is often fatal without immediate medical attention. No cases of unprovoked aggression towards humans are known.1

Wat doen dit as dit bang is?

When threatened, its drab colouring gives way to flashing blue-green rings.1

As dit byt

Get immediate medical attention, because a bite is often fatal without it. No antivenom exists.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 Stille Oseaan Indiese Oseaan

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 Southern 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)

Southern 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

Females only reproduce once in their lifetime. After the eggs hatch, the mother dies shortly afterwards, as she does not eat while guarding them.1

Young blue-ringed octopuses have no planktonic stage. They begin hunting at around one month old.1

The average lifespan is around seven months. The octopus reaches sexual maturity at about four months old.1

Females are choosy about mates. They are more willing to mate with larger males, and larger males try to mate more often than smaller ones.1

Mite-breker

Mite: Popular culture portrays the southern blue-ringed octopus as a sea devil that lies in wait to attack humans.

Waarheid: Its venom is mainly used for hunting or defence. There are no reported cases of unprovoked aggression towards humans.1

Vir gifkenners

Wetenskaplike naam: Hapalochlaena maculosa
Groep: Keëlslakke & seekatte
Familie: Octopodidae2
Orde: Octopoda
Kontinente: Indiese Oseaan, Stille Oseaan, Die oseane
Babas: The female carries her eggs with her instead of leaving them in one place, and the young hatch from them. The young are venomous from birth, and their blue rings appear about six weeks after hatching.1
Lewensduur: omtrent 0,6 jaar1
Gevaar vir mense: 5 / 5: Dodelik3

Waar die feite vandaan kom

Southern blue-ringed octopus (Wikipedia (CC BY-SA 4.0))
Hapalochlaena maculosa (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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