Once a puffer fish dies does it still have poison?

Pufferfish contain a poison called tetrodotoxin, which is found in their liver, intestines, and reproductive organs. Tetrodotoxin is a potent neurotoxin that can cause paralysis and death. While the poison is found in the fish's organs, it does not dissipate or decompose after the fish dies. This means that even if the pufferfish has been dead for some time, it can still be dangerous to eat. For this reason, it is important to never consume a pufferfish unless it has been prepared by a trained professional.