Siberian Federal University, Krasnoyarsk, Russia.
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Krasnoyarsk, Russia.
Dokl Biochem Biophys. 2023 Dec;513(Suppl 1):S92-S95. doi: 10.1134/S1607672923700680. Epub 2024 Feb 9.
Significant differences in the fatty acid composition of the muscle tissue of juvenile Arctic char Salvelinus alpinus (Linnaeus, 1758) from the natural habitat (Lake Sobach'e) and aquaculture, as well as juveniles of the anadromous form of char (malma) Salvelinus malma (Walbaum, 1792) from the Avacha River were found. The observed differences between aquaculture and wild juvenile char were associated with different food sources. The muscle tissue of juvenile char from natural habitat was characterized by significantly higher levels of fatty acids-biomarkers of diatoms, as well as biomarkers of marine copepods in the anadromous form. In the fatty acid composition of juvenile char from aquaculture, significantly higher levels of linoleic acid were revealed, as well as long-chain monounsaturated acids, the source of which could be aquaculture feed. The identified differences did not have a significant effect on the content of eicosapentaenoic and docosahexaenoic acids in the muscle tissue of juvenile aquaculture and wild char. The content of biochemically valuable omega 3 polyunsaturated fatty acids in juvenile char from natural ecosystems and aquaculture was similar.
在来自自然栖息地（Sobach'e 湖）和水产养殖的幼年北极红点鲑（Salvelinus alpinus）（Linnaeus，1758）以及阿瓦恰河溯河洄游形式的红点鲑（malma）Salvelinus malma（Walbaum，1792）的肌肉组织中发现了脂肪酸组成的显著差异。在水产养殖和野生幼年红点鲑之间观察到的差异与不同的食物来源有关。来自自然栖息地的幼年红点鲑的肌肉组织的特点是具有显著更高水平的脂肪酸 - 硅藻生物标志物，以及溯河洄游形式的海洋桡足类生物标志物。在水产养殖幼年红点鲑的脂肪酸组成中，发现亚油酸水平显著升高，以及长链单不饱和脂肪酸，其来源可能是水产养殖饲料。所确定的差异对水产养殖和野生幼年红点鲑肌肉组织中二十碳五烯酸和二十二碳六烯酸的含量没有显著影响。来自自然生态系统和水产养殖的幼年红点鲑的具有生物化学价值的 omega 3 多不饱和脂肪酸含量相似。
