Paralytic Shellfish Poisoning (PSP) Closure: Blue Mussels in the Nauset System

Red tide or paralytic shellfish poisoning (PSP) toxins affect human health. The first PSP advisory has been issued for blue mussels in the Nauset Marsh System. For up-to-date information on this and other PSP advisories go to https://www.mass.gov/dfwele/dmf/marinefisheriesnotices/advisories.htm .