Monitoring programs may differ in other states. Recreational shellfish gatherers should look for posted warnings and pay close attention to local media announcements. Also, it is advisable to contact appropriate state agencies for current news on closures. Under no circumstance should individuals harvest shellfish from any area closed to shellfishing. Toxic shellfish will taste and appear no different than nontoxic shellfish, and cooking does not destroy the red tide toxin.
Testing is the only way to determine if shellfish contain unsafe levels of toxin.
Yes, consumers should feel confidant about purchasing shellfish from established markets. Harvesting regulations for shellfish are strictly enforced. Even during periods of red tide, clams, oysters, mussels and whelks in seafood markets are harvested from clean waters. The U.S. Food and Drug Administration visits state labs to observe routine testing procedures, and public health officials regularly monitor shellfish markets to ensure that only safe, nontoxic shellfish are available to consumers.