ACID COMPOSITION OF DORSAL MUSCLES OF PIN K SALMON (ONCORHYNCHUS-GORBUSCHA)

We aimed to investigate the content and the fatty acid composition of total lipids in the central part of dorsal muscles of pink salmon caug ht in the coast of the Sea of Okhotsk. The sex differences and their c hanges depending on the date of fishing were studied. The lipid was ex tracted from the central part of dorsal muscles by FOLCH method and th e fatty acids were analyzed by GLC method. The lipid contents were wit hin the range from 1.52 to 2.62%, however, no significant differences in contents were found between sexes and fishing date. The dorsal musc les of the heavy subjects showed a tendency of higher contents of lipi d. In addition, the fatty acid compositions were compared among the su bjects in respect of the fishing date and sex, there was no noticeable difference in fatty acid constituents of dorsal muscles in each fishi ng date. The major fatty acids of the samples were C 14 : 0, C 16 : 0, C 18 : 0, C 16 : 1, C 18: 1, C 20 : 1, C 18 : 2, C 20 : 5 and C 22 : 6. The sum of these acids was more than 85% of the total acids in each samples. The male pink salmon revealed higher contents of C 18 : 0, C 18 : 1, total saturated fatty acids and total poly enoic fatty acids, although there were more higher contents of C 20 : 1, C 24 : 1 and to tal monoenoic acids in the female. The content of total saturated fatt y acids was 25.41+/-3.09%. On the other hand the contents of total mon oenoic and polyenoic acids were 48.90+/-6.93 and 21.88+/-5.325%, respe ctively.