Poisoning resulting from fish and other marine creatures is referred to as ichthyism,* which may result either from envenomation by stinging or biting, or from ingestion of toxic or decomposing fish. Only the latter will be discussed here. Poisonous fish are subdivided into:
· Ichthyosarcotoxic fish, which contain a toxin within theirflesh,
· Ichthyohaemotoxic fish, which have poisonous blood, and Ichthyo-otoxic fish, which contain a toxin mainly in theirgonads.Based on the nature of toxin, there are 5 types of seafood poisoning—scombroid, ciguatera, tetrodotoxic, paralytic shellfish, neurotoxic shellfish, and amnesic shellfish poisoning.