Bay in Surigao del Sur tests positive for red tide

enablePagination: false
maxItemsPerPage: 10
totalITemsFound:
maxPaginationLinks: 10
maxPossiblePages:
startIndex:
endIndex:

Another coastal area was included in the list of those positive for red tide, this time in Surigao del Sur, the Bureau of Fisheries and Aquatic Resources (BFAR) said Thursday. (FILE PHOTO)

Metro Manila (CNN Philippines, November 28) — Another coastal area was included in the list of those positive for red tide, this time in Surigao del Sur, the Bureau of Fisheries and Aquatic Resources (BFAR) said Thursday.

Samples from the province’s Lianga Bay tested positive for red tide toxin. This means shellfish such as clams, cockles, oyster, mussels and scallops collected there are not safe for consumption. Meanwhile, Hinatuan and Bislig Bays in the province remains free from the toxin.

The red tide warning is also still up in the coastal waters of Sual, Pangasinan; Pampanga; Bataan (Mariveles, Limay, Orion, Pilar, Balanga, Hermosa, Orani, Abucay and Samal); Puerto Princesa Bay, Palawan; Dauis and Tagbilaran City in Bohol; Irong-irong, San Pedro, and Silanga Bays in Western Samar and Cancabato Bay, Tacloban City in Leyte.

However, BFAR said fish, squids, shrimps and crabs from red tide-positive areas are still safe to eat as long as they are fresh and thoroughly cleaned before cooking. It said their edible tissues cannot absorb the red tide toxin.

What is red tide?

Red tide is the phenomena where waters change color due to algae activity that may produce a poisonous substance. These algae are then consumed by shellfish. Red tide occurs when algae increase in number due to warmer sea temperatures.

Consuming toxic shellfish could lead to paralytic shellfish poisoning, which affects the nervous system 30 minutes after ingestion. Effects include tingling of the lips and tongue which will then spread to the face, neck, fingertips and toes. It will also lead to headache, dizziness and nausea, and in severe cases, muscular paralysis and respiratory difficulty within five to 12 hours, a BFAR study said.