Laguna de Bay, with its surface area of about 90,000 hectares, used to be the source of around 60 per cent of the fish requirements of Metro Manila and surrounding provinces. Around 20,000 small fishermen depend on the lake for their livelihood while the fishpen operators who used to occupy 34,000 hectares now occupy only about 3,000 hectares for production of bangus, tilapia and carp.

Cruz, C. C. (1990, April 9). The ignored pollution to the fishery problem in Laguna Lake. The Philippine Star, p. 8.