Heterogeneity in Philippine milkfish populations
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Twelve milkfish (Chanos chanos ) populations from 6 coastal areas in the Philippines, collected at the fry stage and reared until fingerling size, were analysed for electrophoretic variation at 28 presumptive loci. Seven loci were polymorphic at the 0.99 level (5 at the 0.95 level) while 21 were monomorphic. Significant departures from the expected Hardy-Weinberg genotype distributions were observed only at the Pgm locus in samples 843 and 862. G-tests for heterogeneity revealed significant differences in genotype distributions at the Est-1, Gpi-1, Gpi-2, Mp-2 and Pgm loci within each year of sampling, within one location at different sampling years, and within two geographical areas east and west of the Philippines.
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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
Lee, Chaur Shyan (Aquaculture Department, Southeast Asian Fisheries Development Center; International Development Research Centre; Island Publishing House, Inc., 1984)This paper attempts to explain empirically the entire milkfish (Chanos chanos ) industry in Taiwan, convering 1) the gathering and marketing of milkfish fry - the procurement subsystem; 2) the production of milkfish ...