Shellfish also affected by fish kill in Las Piñas, Parañaque

The aquatic life found dead on the shores of Parañaque and Las Piñas were not only composed of a variety of fish, but shellfish as well, according to the Bureau of Fisheries and Aquatic Resources (BFAR).

A report by Chino Gaston on GMA News TV's QRT on Friday said the shell of white mussels from the affected areas were found to have gone brittle, and its insides seemed to have already "melted."

Officials of the City Agriculture Office of the two cities claimed a white substance found floating in the water is suspected to have killed the fishes.

Local government units have already taken samples of the shellfish for further testing.

Meanwhile, the results of the water samples taken by the BFAR National Fisheries Laboratory Division and BFAR 4 showed above the standard levels of ammonia and phosphates in the water.

According to a statement released by BFAR, ammonia and phosphate "at high levels may cause detrimental effects to the fish which may result in fish kill."

Based on the results, officials declared that the water is not suited for marine life.

Suspected causes of death are water from the rivers, the sudden change in water temperature, the drop of oxygen levels in the water, dynamite fishing, and chemicals which possibly came from a large facility being built nearby. — Joahna Lei Casilao/MDM, GMA News