Proceedings of the Aquaculture Workshop for SEAFDEC/AQD Training Alumnihttp://hdl.handle.net/20.500.12066/63822024-03-29T15:19:02Z2024-03-29T15:19:02ZProceedings of the Aquaculture Workshop for SEAFDEC/AQD Training Alumni, 8-11 September 1992, Iloilo, Philippineshttp://hdl.handle.net/20.500.12066/63962021-11-28T03:08:14Z1993-01-01T00:00:00ZProceedings of the Aquaculture Workshop for SEAFDEC/AQD Training Alumni, 8-11 September 1992, Iloilo, Philippines
Villegas, Cesar T.; Castaños, Milagros T.; Lacierda, Rodrigo B.
The workshop was conducted to maintain linkage between Southeast Asian Fisheries Development Center, Aquaculture Department and its alumni. It also aimed to: assess the effectiveness of the training alumni and among trainees; inform alumni of the recent technologies developed by the Department; recommend ways to make the training courses more responsive to the needs of the fish farmers and the aquaculture industry. The training alumni identified several problems regarding the capability of the technical staff in aquaculture, i.e. shrimp seed production, marine fish seed production, grow-out culture, and fish diseases. The contributions of the selected participants during the meeting which are contained in this volume are cited individually.
1993-01-01T00:00:00ZThe shrimp farming industry in the PhilippinesCorre Jr., Valerianohttp://hdl.handle.net/20.500.12066/64012022-02-28T02:52:21Z1993-01-01T00:00:00ZThe shrimp farming industry in the Philippines
Corre Jr., Valeriano
Villegas, Cesar T.; Castaños, Milagros T.; Lacierda, Rodrigo B.
The shrimp farming industry in the Philippines is the culture of shrimp (Penaeus monodon) in brackishwater and seawater grow-out farms to marketable size. The industry is highly dependent upon the other sectors/components of the shrimp culture industry, including:<ol style="list-style-type:decimal; margin-left:25px; margin-top: 5px"><li>the shrimp hatcheries for their supply of fry (PLs);</li><li>the feed millers for their supply of commercial pelletized feeds, primarily for semi-intensive and intensive shrimp farms;</li><li>the shrimp processors/exporters for the purchase of their harvests;</li><li>the financial institutions for their capital and operational costs; and</li><li>the research institutions and the government for solutions to technical and other problems.</li></ol>
Such dependence makes shrimp farming vulnerable. Other than that, it is also a high risk business. In addition, monsoon rains, typhoons, and floods can significantly affect shrimp farming. Pollution from watershed activities and from self-generated organic load has resulted in slower shrimp growth, higher susceptibility of shrimp to diseases, and mass mortalities. Widely fluctuating export market prices and demands are also major concerns of the industry.
1993-01-01T00:00:00ZStatus and problems of marine fish seed production in ThailandPimoljinda, Jatehttp://hdl.handle.net/20.500.12066/63992023-03-23T02:22:52Z1993-01-01T00:00:00ZStatus and problems of marine fish seed production in Thailand
Pimoljinda, Jate
Villegas, Cesar T.; Castaños, Milagros T.; Lacierda, Rodrigo B.
Aquaculture of marine fishes such as sea bass, milkfish, and mullet among others, have been conducted in Thailand for a long time in its provinces along the coast. The fry of these fishes have been collected from natural waters and cultured for the consumption of the family. The traditional method was used in rearing these fishes - flowing seawater into earthen ponds using the bamboo stake trap as the water gate, and culturing trapped fry. Feed was usually the juveniles of other species that come with the water. Needless to say, production was very low.
Rearing marine fish in commercial scale is fairly recent, only in the last 30 years. Seed collection, transport, nursery, grow-out culture, and rearing techniques have been experimented by the Department of Fisheries since 1954 at its Prachuab Fisheries Station. The results were then disseminated to fish farmers. The species which are popularly cultured include sea bass (Lates calcarifer), red snapper (Lutjanus argentimaculatus), and grouper (Epinephelus tauvina ).
1993-01-01T00:00:00ZShrimp seed production in MalaysiaMuhamad Hatta Bin Haji Mahmudhttp://hdl.handle.net/20.500.12066/63972022-02-28T02:50:46Z1993-01-01T00:00:00ZShrimp seed production in Malaysia
Muhamad Hatta Bin Haji Mahmud
Villegas, Cesar T.; Castaños, Milagros T.; Lacierda, Rodrigo B.
The giant freshwater prawn, Macrobrachium rosenbergii, and the marine shrimp, Penaeus monodon, are now becoming the most important cultured species in Malaysia. The progress in the aquaculture of these species has led to the development of hatcheries in various parts of the country. To date, a total of 50 hatcheries are now in operation.
Fry production technology varies between hatcheries. For M. rosenbergii, clear-water, closed system, and green-water larviculture techniques are common. For P. monodon, the two-tank and one-tank larviculture systems are used. A range of problems such as lack of skilled hatchery personnel, larval diseases, and lack of financial support hampers hatchery operations. In order to ensure the continued operation of the hatcheries, the Department of Fisheries (Malaysia) is providing the necessary support services and technical assistance.
1993-01-01T00:00:00Z