Marine biotoxins (also called phycotoxins) are produced by certain phytoplankton species (diatoms and dinoflagellates) and can accumulate in various marine species such as fish, crabs or filter feeding bivalves (shellfish) such as mussels, oysters, scallops and clams. In shellfish, toxins mainly accumulate in the digestive glands without causing adverse effects on the shellfish itself. However,...
