The milkfish fry shortage in the Philippines and supply from fisheries and hatcheries
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This paper reviews the history and status of the milkfish fry fishery and hatchery and examines the issue of fry shortage in some detail. The fry fishery in the Philippines is a well developed industry that uses efficient indigenous technology, employs a quarter-million people, and provides income to local governments through fry ground concessions or fry gathering permits. The fry fishery is determined by where and when milkfish spawn. Fry perishability and the lack of an accurate accounting method shape industry practices and make it difficult to quantify the fry supply. Catch data are lacking, but the milkfish production of 100,000-240,000 mt indicate that fry catches ranged 0.8-2 billion a year during the past 25 years, and averaged at least a billion a year during the last five years. Milkfish farming has intensified in brackishwater ponds (especially in former shrimp farms) and has expanded into freshwater and marine pens and cages. However, there are no data on the farm areas currently under operation under different stocking rates, and fry requirements can only be roughly estimated for a given set of assumptions. If the Philippines double its current total milkfish production to 300,000 mt to support a larger population, then hatcheries would have to provide about one billion fry, in increments of perhaps 100 million a year, over the next decay. About 1000 females and 1000 males are required 100 million fry. Milkfish broodstock and hatchery technologies suitable for the Philippines have long been developed by the SEAFDEC Aquaculture Department, but only recently caught the attention of Filipino hatchery operators and milkfish farmers. On the other hand, milkfish farming is market-driven and profit- motivated and intensification can not prosper when production cost is high and farm-gate price is low. Under these conditions, the fry shortage is not immediate and the private sector has time to establish milkfish broodstocks and hatcheries. Refinement are needed in a fry fishery, hatcheries, grow-out operations, post-harvest processing and marketing – to assure increased production and the sustainability of the milkfish industry.
Bagarinao, T. (1997). The milkfish fry shortage in the Philippines and supply from fisheries and hatcheries.
UPV Journal of Natural Sciences, 2(2), 138-158. http://hdl.handle.net/10862/1576
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Kumagai, Shigeru; Castillo, Nelson (Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Fry shrank immediately after they were preserved in formalin, but from the second week onwards shrinkage was almost nil. Fry in freshwater formalin solutions shrunk less than those in seawater formalin solutions. It is ...
Kumagai, Shigeru; Bañada, Vicente C.; Castillo, Nelson M.; Unggui, Abdul S. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)The results are presented of a study of milkfish fry occurrence in the Philippines, namely at Magaba and at Tubog. There were 2 peaks of fry occurrence in the latter, one in May and another in October, whereas only one ...
Smith, Ian R. (International Center for Living Aquatic Resources Management; Aquaculture Department, Southeast Asian Fisheries Development Center, 1981)The fry and fingerling industry of the milkfish (Chanos chanos Forskal) in the Philippines is alleged to suffer from certain imperfections. Primary among these are an annual shortage of catch necessary to meet the stocking ...Series: ICLARM technical reports; 1 | SEAFDEC Aquaculture Department contribution; No. 93