Box jellyfish toxicity

Box Jellyfish - About toxicity

http://wallpapers.free-review.net/wallpapers/15/Box_Jellyfish_-_underwater_wallpapers.jpg

École des Mines de Saint-ÉtienneGraduate School of Life Science and System Engineering,

Laboratory of biofunctional MaterialsKyushu Institute of Technology

Yasuyuki Kuramoto

e-mail:[email protected]

• More than 5000 people have been killed by kind of box jellyfish (Chironex fleckeri)who lives in Australia since 20th century.

Introduction

Box jellyfish

https://upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Avispa_marina_cropped.png/220px-Avispa_marina_cropped.png

Habit・ The medusa form of a box jellyfish has a squarish, box-like bell.

・ From each of the four lower corners of this hangs a short pedalium or stalk which bears one or more long, slender, hollow tentacles.

・ Box jellyfish to killing or stunned instantly prey such as small shrimp with its intense poison. Sometimes we also use for self-defense.

• Box jellyfish has a poison produced by the bacteria. toxicity

Botulinum toxin

https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Botulinum_toxin_3BTA.png/800px-Botulinum_toxin_3BTA.png

Botulinum toxin A

・ The cause of botulinum food poisoning, very toxic

・ If the type A toxin to humans was orally administered, lethal dose per body weight 1kg is estimated to 1μg.

・ Because the toxicity is eliminated and deactivated when treated with either alkali heating at 100 10 minutes, ℃ it is safe if enough heating

Characteristic

Habitat&Characteristic

box jellyfish range

http://factsanddetails.com/media/2/20120518-800px-Chironex_fleckeri_Range_Map.svg.png

The box jellyfish is found off the north and northeast coast of Australia.

Box jellyfish live for only a couple of months

They feed on small fish and shrimp and can double in size in one month.

Box jellyfish have 24 eyes clusters on each corner of its box shape, giving it 360 degree vision both horizontally and vertically.

Box jellyfish tentacles are 15 feet long and a quarter inch thick

A single tentacle contains millions of venom capsules that fire with a mechanical trigger stimulated by chemicals on the surface

Accident

Box jellyfish warning sign in Australia

http://factsanddetails.com/media/2/20120518-Marinesting1.jpg

the box jellyfish has been called "the world's most venomous creature"

Toxin attacks our heart and nervous system, and the skin cells,

When the human is bitten by box jellyfish, become a shock for stand about not of severe pain or indulgences. Which it will die in a heart attack before you get to the shore. Death severe pain continued for several weeks without lead, often terrible scar remains in the part of tentacles touches.

Symptoms of skin of the person who bitesBox jellyfish