INTRODUCTION Background of the Study Aquaculture is one of the fast-improving sources of food and raw material stock for industry from which the Philippines takes up a significant role in the world market (BFAR-PHILMINAQ, 2007). It continues to be the main driver of growth for the agricultural sector of the country that provides a number of socio-economic benefits, including food provision, income generation and livelihood. In several areas throughout Southeast Asia, crab production is one of the