Shellfishes collected and tested from Dumanquillas Bay in Zamboanga del Sur; Tantanang Bay in Zamboanga Sibugay Province; Coastal waters of Zumarraga Island in Samar; and Matarinao Bay in Eastern Samar are still positive for Paralytic Shellfish Poison (PSP) or toxic red tide that is beyond the regulatory limit.

Bureau of Fisheries and Aquatic Resources, Shellfish Bulletin No. 20, Series of 2025, 30 September 2025. (2025, October 2). The Philippine Star, p. 5.