South China Sea fisheries development and coordinating programme. Low-cost water filtration system for fish farms, fish markets and village drinking water supplies, Regional
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The participating countries of the South China Sea Fisheries Development and Coordinating Programme, including Hong Kong, Indonesia, Khmer, Malaysia, the Philippines, Singapore, Thailand and Vietnam, have a long-standing tradition of fairly common coastal aquaculture practices, due largely to related socio-cultural characteristics, similar climatic and land-sea resources, and the prevaience in the area of the same or related species of fishery resources suitable for culture. 2. Altogether the developed aquaculture areas in these countries are estimated at 430 000 hectares, producing annually about 200 000 tons of finfish and shrimps, 10 000 tons of shrimps and prawns, and 30 000 tons of cockles, oysters, mussels and others. 3. Since the management method in this area is generally extensive rearing of fish in ponds and pens or cages, and in open water for molluscs and seaweeds, production is low; the annual yields are about 500 kg/ha for finfish and 350 for shrimps and prawns.