Photo courtesy of J. Sumagaysay

Shellfish from Puerto Princesa Bay is still not safe for human consumption.

The Bureau of Fisheries and Aquatic Resources (BFAR), on its Shellfish Bulletin No. 20 released Thursday, continued its imposed shellfish ban on Puerto Princesa Bay due to the presence of toxic microorganism triggering red tide phenomena.

The public warning was issued after samples of shellfish collected at Puerto Princesa Bay yielded positive results for paralytic shellfish poison (PSP) that is beyond the regulatory limit.

Consuming shellfish with red tide toxins may affect an individual’s nervous system within 30 minutes. Initial reactions may include tingling, first in the lips and tongue, spreading to the face, neck, fingertips, and toes.

Other symptoms include headache, dizziness, and nausea. In severe cases, people may experience muscular paralysis and respiratory difficulty within 5 to 12 hours. Fatalities from respiratory paralysis have been reported.

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is a desk editor and senior reporter of Palawan News. He covers politics, environment, tourism, justice, and sports. In his free time, he enjoys long walks with his dog, Bayani.