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Southern blue-ringed octopus

Hapalochlaena maculosa

Gbasara aha ya: It is named for the vibrant blue rings it shows when it is agitated.1

Na-egbu egbuOtu n'ime anụmanụ kacha egbu egbu n'ụwa. Ọ bụrụ na ọ tara gị, kpọọ maka enyemaka ozugbo.Enyemaka ngwa ngwa na ọgwụ mgbochi nsị (antivenom) na-azọpụta ọtụtụ mmadụ. Kpọọ nọmba mberede gị ozugbo.

Ejula cone na octopus

ỊtaNri ya: Anụ

Ihe ize ndụ nye mmadụ: Na-egbu egbuOtu n'ime anụmanụ kacha dị egwu n'ụwa.

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

Ebe obibi

Southern coasts of Australia1

Oké Osimiri India, Oké Osimiri Pasifik

Ụlọ

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

Ogologo

20 cm (7.9 in)1

Ọsọ kacha elu

ihe dị ka 25 km/h (16 mph)

Igwu mmiri, nchepụta

Gịnị ka ọ na-eri?

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

Otú ị ga-esi mata ya

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

Ike nsị

Ịta

Nsị na-esi n'eze nsị ya ma ọ bụ eze ya apụta mgbe ọ na-ata.

Gịnị ka nsị ọ na-agba na-eme?

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

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: Na-egbu egbuOtu n'ime anụmanụ kacha dị egwu n'ụwa.

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

Gịnị ka ọ na-eme mgbe ụjọ tụrụ ya?

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

Ọ bụrụ na ọ tara

Get immediate medical attention, because a bite is often fatal without it. No antivenom exists.1
Mkpakọ na nkwụsi ahụ (pressure immobilisation): jiri bandeji na-agbatị agbatị (elastic bandage) kee ebe ọ tara nke ọma, wee kee ya gaa n'elu aka ma ọ bụ ụkwụ ahụ niile, jiri splint (osisi nkwado) kwado ya, mee ka onye ahụ ghara imegharị ahụ ma ọlị ruo mgbe enyemaka bịarutere.
Octopus nwere mgbanaka acha anụnụ anụnụ ma ọ bụ ejula cone nwere ike ime ka mmadụ kwụsị iku ume mgbe ọ ka maara ihe: kpọọ maka enyemaka, dịkwa njikere inye ya ume nnapụta (ifu ume n'ọnụ ya) ruo mgbe ndị ụgbọ ndị ọrịa bịarutere were ọrụ ahụ.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
Ọ bụrụ na otu tara gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

Afrịka Eshia Yurop Ugwu Amerika Ndịda Amerika Ọstrelia na Oshenia Oké Osimiri Pasifik Oké Osimiri India

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

dị ogologo dị ka blọk egwuregwu 6 n'ahịrịnwere ike igwu mmiri ogologo nnukwu ọdọ igwu mmiri (50 m) n'ime sekọnd 7.2

Kedu otú Southern blue-ringed octopus si hà ma e jiri ya tụnyere GỊ?

Naanị mgbakọ na mwepụ n'ime browser gị. Ọ dịghị ihe echekwara ma ọ bụ ezigara ebe ọ bụla.

Kedu otú o si agba ọsọ?

Onye igwu mmiri Olympic ihe dị ka 8 km/h (5 mph)

Southern blue-ringed octopus ihe dị ka 25 km/h (16 mph)

Dọlfin na-agba ọsọ n'ike ya niile ihe dị ka 35 km/h (22 mph)

ọ dị mma ịmara

Eziokwu

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

Onye na-ekpughe akụkọ ụgha

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

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

Maka ndị ọkachamara nsị

Aha sayensị: Hapalochlaena maculosa
Otu: Ejula cone na octopus
Ezinụlọ: Octopodidae2
Usoro: Octopoda
Kọntinent dị iche iche: Oké Osimiri India, Oké Osimiri Pasifik, Oké osimiri niile
Ụmụ ọhụrụ: 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
Ogologo ndụ: ihe dị ka afọ 0.61
Ihe ize ndụ nye mmadụ: 5 / 5: Na-egbu egbu3

Ebe eziokwu ndị a si

Southern blue-ringed octopus (Wikipedia (CC BY-SA 4.0))
Hapalochlaena maculosa (iNaturalist): aha na nhazi ọkwa.
Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

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