Authorities have maintained a strict shellfish ban in Matarinao Bay, Eastern Samar, after recent laboratory tests confirmed the continued presence of toxic red tide in the area.
The Bureau of Fisheries and Aquatic Resources (BFAR) in Eastern Visayas issued the advisory on Thursday, Jan. 29, following results from shellfish meat samples. The tests revealed levels of saxitoxin—the agent responsible for paralytic shellfish poisoning (PSP)—that remain above the regulatory limit.
The ban covers the coastal waters of four municipalities: General MacArthur, Quinapondan, Hernani, and Salcedo.
Under the current warning, the gathering, sale, and consumption of all types of shellfish and Acetes sp. (locally known as alamang) from the bay are strictly prohibited.
BFAR warned that consuming contaminated shellfish can lead to rapid-onset symptoms, including facial numbness, dizziness, and respiratory paralysis.
While shellfish remain off-limits, BFAR clarified that other seafood products from the bay are still safe for human consumption. Fish, squid, shrimp, and crabs may be eaten provided they are fresh and prepared correctly.
Officials advise consumers to thoroughly wash the seafood and remove all internal organs, such as gills and intestines, before cooking.
BFAR and local government units (LGUs) have intensified monitoring of the bay. The ban will remain in effect until subsequent laboratory tests show that toxin levels have returned to safe standards.
The recurrence of red tide in the region is often attributed to sudden environmental shifts, such as heavy rainfall following warm periods, which can trigger the bloom of toxic algae.