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South China Sea fisheries development and coordinating programme. Low-cost water filtration system for fish farms, fish markets and village drinking water supplies, Regional

Year of publication 1979

Pages p. 94

Author Shao-wen Ling;Fisheries and Aquaculture Management Division

Product type Project

Edition 1

Synopsis (short abstract) 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.

Language English

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    South China Sea fisheries development and coordinating programme. Low-cost water filtration system for fish farms, fish markets and village drinking water supplies, Regional 1979
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    The report describes the situations and problems related to water quality at marine, brackish and freshwater sites in Indonesia, the Philippines and Malaysia. The Consultant investigated each site and where possible, demonstrated the use of the SWS system, using box units and steel screen wells. The results of each test are given along with detailed advice on the installation and maintenance of permanent systems. Further technical data is supplied in the Appendices along with general description s of the equipment and its applications. The format of the report is as follows: After a brief itinerary, there is a day-by-day account of the stations visited, specific problems discussed and practical work undertaken. For each of the territories, there is a comment on the general application of sub-sand abstraction and filtration principles and on factors which affect them. A series of Appendices lists detailed procedures suggested for solving the various problems. These are treated in t his way so that copies of relevant sheets can be forwarded to individual stations for action. It is hoped that the officials dealing with these problems will write for further advice if this would be helpful.
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    Project
    South China Sea fisheries development and coordinating programme. Report on second regional consultancy low-cost water filtration, Regional 1979
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    The report gives details of water filtration work undertaken by the consultant in the Philippines, Singapore, Malaysia and Thailand. Both marine and freshwater situations were tackled using SWS steel screen wells, box units and mini units. The appendices give fuller details of the problems encountered at each site, and of amendments to the system designed to overcome those problems. Not all sites were difficult, but many required a custom-designed modification to the system
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    Project
    South China Sea fisheries development and coordinating programme. Water supply of the Fishery Development Centre in Freshwater Aquaculture at Sukabumi, West Java, Indonesia 1977
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    The early drilling of a well at the present Centre, about 30 cm in diameter, or larger if practicable, and up to 150 metres in depth is recommended as an interim measure to effect an urgently needed improvement in dependable water supply at the Centre. If the target yield of 11 liters/second, or more, is realized and water quality is satisfactory, then an appropriate size pump should be selected based on drawdown tests. The pump would be powered by electric power from the City of Sukabumi with s tandby power provided at the Centre. Relocation of the Centre to the upper foothill locations of Mt. Pangrano characterized by the Halimun Valley and Batukarat locations is strongly recommended for more detail engineering study. Sites with the desired 200 liters/second capacity appear available with minimum impact on existing paddy irrigation. Alternatively the survey could also look into the possibility of using other existing Directorate General Fisheries freshwater projects outside Sukabumi . Pipeline diversion of an upland flow to the Centre, which has been previously considered is not recommended because of adverse social and economic impacts on existing rice farms. The possibility of FAO/UNDP assistance with various elements of implementing a new water supply and improving the Centre should be considered in the 1978 IPF as a preproject activity of the proposed Fisheries Extension Project 1979–1982. The estimated UNDP requirement in 1978 is $70,000, as indicated in ANNEX 3. T he corresponding counterpart funding to cover drilling of a well, installation of pumps and motor, and comprehensive site surveys should be provided.
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