Fish Population Dynamic and Stock Assessment

10.4.4.5. Protection of public health

There are a few fish and shellfish that may carry toxins or human disease organisms, and catches may be inspected and controlled by fishery agencies. For example, mollusks from polluted waters may transmit gastrointestinal diseases. Mollusks and fish may contain deadly toxins due to natural causes or to pollutants. A few aquatic animals may be venomous and should be avoided. Still others may transmit parasites to humans if they are not well cooked.