Fish Microbiology and Quality Assurance (2+2)

Unit 6 - Biological hazards in foods

6.4. Marine toxins
Marine toxins are natural toxins found in fish and shellfish. Consumption of toxin containing seafood results in various kinds of seafood borne illness. Marine toxins or biotoxins are produced by naturally occurring marine algae / phytoplankton and marine organisms become toxic by feeding on these toxic phytoplankton.

Seafood toxic types

1. Shellfish toxins
2. Ciguatera toxins
3. Tetradon toxins
4. Scombroid toxins