Two major shellfish that are farmed in the Philippines are oysters and mussels. Oyster production in the country began in 1931 in Negros Occidental and is now confined largely to the Manila Bay area and a few localities. Meanwhile, the farming of mussels was established in 1955 in Binakayan, Cavite, a major oyster farming station of the then Bureau of Fisheries. Today, shellfish production has been showing promise because of its continuous growth in the past years.