the samar sea has experienced a significant degradation of marine resources, that is even characterized as "ecocide". before 1981, there were 50 commercial fish species, but within 10 years, it was reduced to only 10 due to overfishing and destructive fishing methods (like dynamite fishing). average daily catch has reduced from 30 kg/day in the 1960s, to 8 kg/day in 1981, to 3.5 kg/day in 1991. having depleted the large predatory fish, fishermen turned to smaller species, allowing jellyfish populations to explode.