Abstract：
Significant differences in the fatty acid (FA) composition of caviar and muscle tissue (fillet) were found in the sterlet Acipenser ruthenus (Linnaeus, 1758) between fish from the Yenisei River and aquaculture farms and were associated with different food sources. Caviar and muscle tissue of sterlet from the natural habitat showed significantly higher levels of the FAs that provide biomarkers of diatoms and bacterial matter. Oleic and linoleic acids, which are characteristic of higher plant oils, and long-chain monounsaturated fatty acids, which are biomarkers of marine copepods, displayed significantly higher contents in sterlet grown in aquaculture, apparently originating from artificial foods. A ratio of several biomarker FAs was for the first time proposed to assay, and its threshold value was established to determine whether sturgeon caviar and fillet originate from fish from natural habitats or aquaculture.
摘要：
在鱼子酱和肌肉组织（鱼片）的脂肪酸（FA）组成中发现了显着差异（Linnaeus，1758）在叶尼塞河和水产养殖场的鱼类之间，并与不同的食物来源有关。来自自然栖息地的鸡腿的鱼子酱和肌肉组织显示出明显更高水平的FA，这些FA提供了硅藻和细菌物质的生物标志物。油酸和亚油酸，这是高等植物油的特征，和长链单不饱和脂肪酸，它们是海洋co足类的生物标志物，在水产养殖中生长的茎中显示出明显更高的含量，显然来自人造食品。首次提出了几种生物标志物FA的比例进行测定，并确定了其阈值，以确定st鱼鱼子酱和鱼片是否来自自然栖息地或水产养殖的鱼类。
