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标题：Seasonal Variations of Fatty Acid Contents of Saccostrea cucullata at Intertidal Zone of Chabahar Bay
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作者：N. Sajjadi ; P. Eghtesadi-Araghi ; A. Mashinchian 等
期刊名称：Research Journal of Environmental Sciences
印刷版ISSN：1819-3412
电子版ISSN：2152-8238
出版年度：2009
卷号：3
期号：3
页码：376-383
DOI：10.3923/rjes.2009.376.383
出版社：Academic Journals Inc., USA
摘要：Seasonal variations of fatty acid s were studied in the lipid fractions of the bivalve mollusk, Saccostrea cucullata , at the intertidal zone of Chabahar bay in the northern part of Oman Sea (Iran). Samples were collected in rocky shores between two stations. The analysis were carried by GC/MS chromatography. Thirteen fatty acid s were identified, of which, the most important saturated fatty acid s (SFA) were 14:0, 4, 8, 12 tri Me- 13:0, 16:0 and 18:0, the mono unsaturated fatty acid s (MUFA) included 16:1n-9, 18:1n-9 and 20:1n-11, the polyunsaturated fatty acid s (PUFA) were linoleic acid 9,12 18:2 , eicosapentaenoic acid EPA 20:5n-3 and arachidonic acid 20:4n-6.Variability of the fatty acid components were studied in four seasons. Maximum percentage level in Saccostrea cucullata for 14:0, 4, 8, 12 tri Me 13:0, 16:0 and 15:0 as saturated fatty acid s was observed in summer, while for 18:1n-9, 20:1n-11 and 20:5n-3 (as unsaturated fatty acid s) maximum concentration was observed in winter. The environmental factors were monitored monthly and their effects on seasonal variation s of the fatty acid s were studied by applying pearson coefficient correlation. The results showed the significant dependency of 20:1n-11 fatty acid concentration to ambient temperature and 9,12 18:2 fatty acid to silicate as environmental factors . Also, principal component analysis was done to establish the fatty acid groups. After Varimax rotation, three factors were extracted, of which first and second factors contributed to 86% of the data matrix. These were mainly dependent on the seasonal variations of the fatty acid s.