Technically the Bureau of Fisheries and Aquatic Resources (BFAR) may be right that change in water temperature of the Taal lake was the prevalent cause of probably the worst fish kill in Batangas, Philippines.
bureau of fisheries and aquatic resources
Is Laguna Lake Dying?
Earlier findings by The Bureau of Fisheries and Aquatic Resources (BFAR) have noted that Laguna Lake has been used as dumping ground for industrial, agricultural and domestic wastes.