The Puffer Fish 1 Presentation by Hoel SEZNEC

Background About the Puffer fish: more commonly known as the Japanese puffer fish. There are nearly 100 kinds of puffer fish worldwide. Live in salt water or fresh water They can grow up to 70.0 cm. 2

Its food Algae Mollusks Invertebrates crustaceans 3

Its defenses It inflates its body It poison his prey, enough poison to kill 30 humans It doesn’t fear its environment 4

Japanese like it in sushi ! 5

Its poison The Second most poisonous vertebrate on earth, Poison = tetrodotoxin =lethal poison=1200 more deadlier than cyanide, It is possibly that a human can survive to a bite Otherwise death is possible in 30 minutes It is use in voodoo to make zombies 6

Its poison No antidote, It paralyze muscles => death by asphyxiation The victim stays conscious, A medical approach is to support the respiratory and circulatory system, 7

Where come from the poison? The poison is located on intern organs : Liver, ovaries, skin, testes, intestines. - The poison is made by a toxin located on algae. The puffer fish eat the bacteria and digest it to make the poison, - If the puffer fish is raised in artificial place it is not poisonous, 8

Where come from the poison? It is the same poison in the cone snail or the blue-ring octopus The bacteria are located on red limestone algae at -100 m It is the pseudomonas and vibrion. 9

An other use of the poison Medical use : Anesthetic Better than any opium or morphine No dependance 10

The puffer fish video 11

12