
(PHOTO COURTESY)
TACLOBAN CITY — The Bureau of Fisheries and Aquatic Resources (BFAR) in the region has declared the coastal waters of Zumarraga Island in Samar free from toxic red tide, but maintained a shellfish ban in Matarinao Bay in Eastern Samar after laboratory tests confirmed the continued presence of harmful toxins.
In a fisheries advisory dated December 23, 2025, BFAR said shellfish meat samples collected from Matarinao Bay—covering the coastal municipalities of General MacArthur, Quinapondan, Hernani, and Salcedo—tested positive for saxitoxin, a potent toxin linked to red tide. The agency warned that all types of shellfish and Acetes species, locally known as alamang or hipon, gathered from the bay are unsafe for human consumption.
BFAR also placed several other coastal areas under local red tide warning after seawater samples tested positive for Pyrodinium bahamense, a dinoflagellate species known to produce saxitoxin. These areas include Guiuan in Eastern Samar, Cancabato Bay in Tacloban City, and Irong-Irong Bay in Catbalogan City, Samar.
Red tide is a naturally occurring phenomenon caused by the rapid proliferation of microscopic algae in coastal waters. Certain species, such as Pyrodinium bahamense, produce toxins that can accumulate in shellfish and cause paralytic shellfish poisoning (PSP) when consumed. PSP symptoms range from numbness and dizziness to severe respiratory distress, and may be fatal in extreme cases.
To safeguard public health, BFAR reiterated its advisory urging the public to refrain from gathering, selling, and eating shellfish and alamang from affected areas until the ban is officially lifted.
The agency clarified, however, that fish, squid, shrimp, and crabs caught in these waters remain safe for consumption, provided they are fresh and that internal organs such as gills and intestines are removed and thoroughly washed before cooking.
BFAR said it continues to regularly monitor coastal waters and conduct laboratory analyses of seawater and shellfish samples across Eastern Visayas, and will issue updated advisories once toxin levels return to safe limits.
(JOEY A. GABIETA)










