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Bay of Bengal blue-ringed octopus

Hapalochlaena nierstraszi
Po mazzarPo ta mazzar senza tractament. Sch'el ta morda, tschertga spert agid.
Lindornas conicas e polips MorsasMangia: Charn
Privel per umans: Fitg privlusEl po mazzar ina persuna che na survegn nagin tractament.

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

Viva en
Bay of Bengal, Indian Ocean and Pacific Ocean, from Japan to Australia (blue-ringed octopuses in general)1
Ocean Indic, Mar d'Andaman, Golf dal Bengal
Pagina iniziala
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
Lunghezza
12 cm fin 20 cm (4,7 in fin 7,9 in)1
Sveltezza maximala
circa 25 km/h (16 mph)
Nudar, stima approximativa
Tge mangia el?
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
Propi!Foto da Bay of Bengal blue-ringed octopus
Bay of Bengal blue-ringed octopus. Foto: Jens Petersen. CC BY 2.5, Wikimedia Commons.

Co renconuscher el

  • 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

Forza dal tissi

Morsas

Il tissi vegn or tras ses dents da tissi u ses dents, cura ch'el morda.

Tge fa ses tissi?

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

Quant privlus è el per umans?

Privel per umans: Fitg privlusEl po mazzar ina persuna che na survegn nagin tractament.

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

Tge fa el, cura ch'el ha tema?

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

Sch'el morda

  • 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
  • Immobilisaziun cun squitsch: envolva ina bandascha elastica ferma sur la morsa e lura vi da l'entir member ensi, fixescha el cun ina stecca e tegna la persuna dal tut immobila, fin che l'agid arriva.
  • In polip cun anels blaus u ina lindorna conica po far che ina persuna na respira betg pli, entant ch'ella è anc dasda: clama agid e sajas pront da dar respiraziun artifiziala, fin che l'equipa da l'ambulanza surpiglia.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

  • Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
  • Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
  • Sch'in tal animal ta morda: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

AfricaAsiaEuropaAmerica dal NordAmerica dal SidAustralia ed OceaniaOcean IndicMar d'AndamanGolf dal Bengal

Quant grond è el?

Quant lung è el?

Bay of Bengal blue-ringed octopus circa 20 cm lung (7,9 in)Ina banana circa 18 cm (7,1 in)In giat da chasa circa 50 cm (1,6 ft)
uschè lung sco 6 bluccs da construcziun in suenter l'auterpudess nudar la lunghezza d'in grond bassin (50 m) en 7,2 secundas

Quant grond è Bay of Bengal blue-ringed octopus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

bun da savair

Fatgs

1

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

2

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

3

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

4

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

5

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

6

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

Destructur da mits

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

Vardad: 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

Per experts da tissi

Num scientific
Hapalochlaena nierstraszi
Gruppa
Lindornas conicas e polips
Famiglia
Octopodidae2
Urden
Octopoda
Continents
Ocean Indic, Mar d'Andaman, Golf dal Bengal, Ils oceans
Poppins
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
Co ch'i va ad el en la natira
Least concern1
Privel per umans
4 / 5: Fitg privlus3

Da nua che vegnan ils fatgs

  1. Blue-ringed octopus (Wikipedia (CC BY-SA 4.0))
  2. Hapalochlaena nierstraszi (iNaturalist): nums e classificaziun.
  3. Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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