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Irukandji jellyfish

Carukia barnesi

Kan doodmaakMoenie aanraak nieKan jou doodmaak sonder behandeling. As dit jou steek, kry vinnig hulp.

Jellievisse & see-steekdiere

SteektentakelsEet: Vleis

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

The Irukandji jellyfish is a tiny box jellyfish with a sting that can cause a serious illness called Irukandji syndrome. It lives in the open water near Australia, and it is hard to spot because it is so small.1

Leef in

Open water near Australia, with most reported incidents in Australia, especially North Queensland1

Indiese Oseaan, Stille Oseaan, Koraalsee, Timorsee & Arafurasee

Tuis

It lives in open water. Most reported stings happen in Australia during the warm summer season. Swimmers in open water near North Queensland were the first people recorded with this syndrome.1

Lengte

5 cm (2 in)1

Topspoed

omtrent 5 km/h (3,1 mph)

Swem, rowwe skatting

Wat eet dit?

Muscle cells in the tentacles bring food to the mouth, where it enters a stomach-like cavity and is digested. Its prey changes as it grows, from small invertebrates such as zooplankton and crustaceans to fish.1

Foto van Irukandji jellyfish — Irukandji jellyfish. Foto: Lisa-ann Gershwin. CC BY 4.0, iNaturalist.

Hoe om dit te herken

The bell is square-shaped and very small, about 12 mm high and 30 mm across.1
It has four long tentacles, one from each corner of the bell.1
The tentacles range from 5 to 50 cm long.1
Its small size means it often goes unseen in open water.1

Word dikwels verwar met: The common name Irukandji jellyfish is also used for other Irukandji jellyfish, such as Malo kingi. The name alone does not tell them apart.1

Gifkrag

Steektentakels

Duisende piepklein steekselle skiet af wanneer iets aan hulle raak.

Wat doen sy gif as dit byt of steek?

This jellyfish is extremely venomous. Its venom comes from stinging cells called nematocysts in its tentacles and bell, and it changes as the jellyfish matures. A sting can cause Irukandji syndrome, with muscle aches, back pain, nausea, headaches, chest and stomach pains, sweating, high blood pressure and difficulty breathing.1

Hoe gevaarlik is dit vir mense?

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

Irukandji syndrome can be severe, and the symptoms are described in detail in medical accounts. Most reported incidents have been in Australia during the warm summer season. Because the jellyfish is so small, people often do not see it before they are stung.1

As dit steek

In hospital, patients are given intravenous morphine, hydromorphone or fentanyl for pain. Pethidine is avoided because of its toxic metabolite norpethidine.1
Klim uit die water en pluk enige tentakels af (met handskoene of 'n lap).
Vir tropiese kubuskwalle: gooi vir minstens 30 sekondes asyn oor die steke, roep hulp en wees gereed om KPR te doen. Vir bloublasies en die meeste ander: spoel af met seewater, dan warm water vir die pyn.

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 steek: 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 Timorsee & Arafurasee

Hoe groot is dit?

Hoe lank is dit?

korter as jou pinkiekan die lengte van 'n groot swembad (50 m) in 36 sekondes swem

Hoe groot is Irukandji jellyfish in vergelyking met JOU?

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

Hoe vinnig is dit?

'n Mens wat swem omtrent 3 km/h (1,9 mph)

Irukandji jellyfish omtrent 5 km/h (3,1 mph)

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

die moeite werd om te weet

Feite

Jack Barnes of Cairns, Australia, discovered the species. During an exploration aimed at finding the cause of Irukandji syndrome, he allowed himself, a lifeguard and his 9-year-old son to be stung.1

Irukandji syndrome, which this jellyfish can cause, was first identified after a group of swimmers were stung in open water near North Queensland, Australia.1

Its venom changes in composition as the jellyfish grows, matching its change in prey from invertebrates to fish.1

Its life cycle alternates between a young form that attaches to a reef or rock and an adult form that swims freely in the water.1

This jellyfish is a type of box jellyfish, a group known for potent venom.1

Vir gifkenners

Wetenskaplike naam: Carukia barnesi
Groep: Jellievisse & see-steekdiere
Familie: Carukiidae2
Orde: Carybdeida
Kontinente: Indiese Oseaan, Stille Oseaan, Koraalsee, Timorsee & Arafurasee, Die oseane
Babas: Young jellyfish begin as a swimming planula larva, which settles on a reef or rock and grows into a polyp. The polyp later forms a colony that develops into an adult medusa.1
Gevaar vir mense: 4 / 5: Baie gevaarlik3

Waar die feite vandaan kom

Carukia barnesi (Wikipedia (CC BY-SA 4.0))
Carukia barnesi (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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