will cause the over-exploitation in production of blue swimming crabs. In 2003, total landings for P. pelagicus were approximately 175,000 tons and decrease to 165,000 tons in 2004 (FAO Fish Stat, 2009). This decline from over-exploitation has an impact in some Asian countries (Ikhwanuddin et al., 2005). In Malaysia, statistics from Department of Fisheries (DOF) shows that the landings of P. pelagicus is 3514 tons in 2007 and increase to 4427 tonnes in 2008 but the landings is decrease in 2009 with