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No Thumbnail AvailableProjectIndonesia - Shrimp culture research. A report prepared for the brackishwater shrimp and milkfish culture applied research and training project 1979
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No results found.This report gives an account of penaeid shrimp culture development work including postlarval production, nursery rearing and pond culture. The postlarval culture method was established for Penaeus monodon and P. merguiensis using different types of culture vessels. The total number of postlarvae produced in 1975 was 580 300 and production has increased to over 4 million in 1977; this figure will be rapidly increased in 1978 from induced gonad maturation and spawning. The highest P. monodon postl arvae per brood in a 10 m3 tank was achieved by producing 375 000 with 73 percent survival, and 320 000 with 52 percent survival for P. merguiensis. Mass-culture systems of phytoplankton and rotifers were established for larval food organisms. The particulated soybean curd and rotifers were used for the larval diet to substitute for Artemia nauplii. Artemia will still be needed for a better survival rate. Various types of nursery methods were experimented on formulated diet and on natural food in ponds; the optimal nursery stocking densities were determined. A series of pond culture results indicated that interim fish extermination by using 7 ppm derris root extract was effective. The annual shrimp production in pond projected from preliminary results indicated that 600 kg per ha per year is possible, utilizing natural productivity with the fertilization but no feeding. This phase of the work needs to be repeated. Based on the experiments, recommendations are outlined for f urther work to increase production. -
No Thumbnail AvailableProjectIndonesia - Improvement of milkfish pond production in Jepara, central Java. A report prepared for the brackishwater shrimp and milkfish culture applied research and training project 1979
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No results found.This is one of a series of field documents prepared during the course of the UNDP project identified on the title page. The conclusions and recommendations given in the report are those considered appropriate at the time of its preparation. They may be modified in the light of further knowledge gained at subsequent stages of the project. The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the Unite d Nations or the Food and Agriculture Organization of the United Nations concerning the legal or constitutional status of any country, territory or sea area, or concerning the delimitation of frontiers. -
No Thumbnail AvailableProjectIndonesia - A standard statistical system for current fishery statistics in Indonesia. A report prepared for the fisheries development and management project 1980
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No results found.Fishery statistics of Indonesia available until 1972 were of rather limited use because of certain deficiencies inherent in the existing statistical survey system. A revised survey system was introduced to overcome these difficulties. The revised survey system covers not only catch and fishing effort statistics but also fishery inventory statistics and fish processing statistics. For the design of the sample survey a sampling frame was obtained through the complete enumeration of the 1973 Agr iculture Census which was undertaken by the Central Bureau of Statistics. However, because the produced sampling frame was limited to Sumatra, Java and Bali, the Directorate General of Fisheries conducted a supplementary frame survey. The standard survey methods used were sample surveys with both objective and subjective measurements for data collection. The standard statistical system has been introduced since April 1976 for the marine fishery and from January 1977 for the inland open water fishery and fresh water culture. The development and implementation of the standard statistical system are described and explained in this report. Examples of the forms used are included
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