The Department of Agriculture – Bureau of Fisheries and Aquatic Resources (DA-BFAR) refuted suspicions that the fish kill along the coastal areas of Las Pinas and Pangasinan resulted from dynamite fishing.
BFAR said that the scientific examination conducted by their Regional Fisheries Protection and Law Enforcement Group in CALABARZON showed that blast fishing did not cause the deaths of the fishes.
The agency added that the results of the water quality test done by their National Fisheries Laboratory Division and CALABARZON office showed that the water has poor levels of dissolved oxygen and high levels of Ammonia and Phosphates.
BFAR stressed that high levels of Ammonia and Phosphates have detrimental effects to fish which may result to fish kill.
“Ammonia is a chemical compound produced naturally from decomposing organic matter, including plants, animals and animal wastes. The ammonia in the water samples, however, might have also come from agricultural, domestic and industrial wastes,” BFAR said in a statement.
“Phosphates, on the other hand, are one of the primary nutrient sources for many forms of algae and could come from sources like domestic sewage and runoff from agricultural land, urban areas and green areas,” the agency further explained.
BFAR said that the fish kill has resulted to the loss of one to two tons of fish composed mainly of bagaong, bakule, sapsap, tilapia, bakoko, siliw, manabon and barakuda.
Personnel of the Paranaque City Agriculture and Fisheries Offices buried on Friday, Oct. 10, the dead fish at the Las Piñas–Parañaque Critical Habitat and Ecotourism Area.
The Pasay City Agriculture Office estimates the killed fish fish to be worth Php 700,000 to Php 1 million.
BFAR assured that they will conduct continuous monitoring of water quality in the area. They promised to also provide technical assistance to the local government units of Las Piñas and Parañaque in the implementation of necessary management measures during fish kill occurrence, including the proper disposal of dead fish.
“This is to ensure that dead fish will not reach the market and prevent sanitary-related diseases from happening,” BFAR said.