The mayor of Mainit town and fisherfolk living around Lake Mainit want to know if mining operations upstream caused the massive fishkill of thousands of tilapia and carp in the last three weeks. Mainit mayor Ramon Mondano told MindaNews on Saturday evening that they have yet to determine the cause of the massive fishkill but he suspects it may have something to do with operations of mining companies upstream. Mondano said the Bureau of Fisheries and Aquatic Resources (BFAR) has not submitted a report on the fishkill even as it had taken samples for laboratory analysis. The fishkill has adversely affected the livelihood of fisherfolk in the area, he said. Mondano said he received reports that at the height of heavy rains, the tailings pond of Greenstone Resources, Inc., spilled over into the lake. "Kada kusog ang ulan naa sila moagas ang ilang tailings" (Each time it rains heavily, the tailings pond spills over), Mondano said. Alegria town Mayor Dominador Esma Jr. said "there are lots of people economically affected by this sad incident." Fisherman Alberto Galindo, 58, a resident of Barangay Pungtod in Alegria town said he used to catch five to ten kilos of fish for selling every day but "karon wala na kay nangamatay lagi" (but none now because they died).