脂肪酸在食物链传递过程中相对保守,可以作为标志物示踪研究海洋生物间的营养关系.脂肪酸标志物属于营养学标志物的一种,是海洋生态系统营养关系研究中很有发展前景的分析方法之一.总结概括了目前国际上应用较广泛的脂肪酸标志及脂肪酸标志体系的建立过程、近年来脂肪酸标志物在海洋生态系统营养关系研究中的应用领域,展望了脂肪酸标志法的应用前景.%Fatty acid biomarker is very suitable to tracking the food sources due to its relatively conservative property during the translation through the food chain. The fatty acid biomarker, belonging to trophic biomarkers, is a powerful method which can be applied in marine trophic relation studies. The most popular fatty acid biomarkers used in marine trophic relation researches were summarized. The screening and checking processes of the fatty acid biomarkers mainly include the fatty acid composition analysis of potential food sources, the indoor feeding experiment and the in situ food chain study for biomarker checking.The fatty acid biomarker was applied mainly in two aspects: the comparison of food sources of typical species in different habitats and the food sources analysis of different species in a complex marine ecosystem.The future application of the fatty acid biomarker will be mainly focused on the analysis of certain tissue or lipid class and combination with other methods, such as stable isotope labeling, so as to improve the reliability and accuracy level of the method.
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