Fish kill incidents widened this weekend with reports of dead fish floating in some parts of Angat Dam in Bulacan and Mestizo River in Ilocos Sur, authorities said Saturday. The Sagip Sierra Madre Environment Society Inc. (SSMSI) reported that dozens of dead freshwater fish surfaced in some parts of the giant reservoir of Angat. SSMI officials said their group began monitoring the fish kill parts of Angat Dam in Sitio Maputi, Barangay Kabayunan, Doña Remedios Trinidad.

Velez, F. C., & Lazaro, F. G. (2011, June 5). Incidents of fish kills reported in Bulacan and Ilocos Sur. Manila Bulletin, p. 16.