Dvoretsky Alexander G, Bichkaeva Fatima A, Baranova Nina F, Dvoretsky Vladimir G
Murmansk Marine Biological Institute (MMBI), Russian Academy of Sciences (RAS), 183010 Murmansk, Russia.
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch (FECIAR UrB), Russian Academy of Sciences (RAS), 163000 Arkhangelsk, Russia.
Animals (Basel). 2023 Jan 17;13(3):336. doi: 10.3390/ani13030336.
Red king crab () is a large shelf species native to the Pacific Ocean. Due to its high commercial value, this species was introduced into the Barents Sea, where it has formed a new population that now supports a stable commercial fishery. Information on fatty acid profiles in different tissues of the Barents Sea is scarce. For this reason, the gonads of red king crabs collected at a coastal site in the Barents Sea during the summer were analyzed for fatty acid composition by gas-liquid chromatography. The proportions of total saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids in the ovaries of were 25.9 ± 2.0%, 22.5 ± 2.3%, and 51.6 ± 2.5%, respectively; in the testes, these levels accounted for 35.1 ± 5.7%, 19.1 ± 2.0%, and 45.8 ± 4.5%, respectively. Fatty acid profiles were similar in larger and smaller red king crabs and crabs with old and new shells. Concentrations of fatty acids were higher in ovaries compared to testes, reflecting higher reproductive efforts in female red king crabs. High levels of docosahexaenoic and eicosapentaenoic fatty acids detected in the ovaries of red king crabs from the Barents Sea indicate that these gonads can be a good alternative source for these fatty acids in the human diet and/or for extracting important fatty acids for use in the medical and pharmaceutical industries.
红帝王蟹（）是一种原产于太平洋的大型浅海物种。由于其较高的商业价值，该物种被引入巴伦支海，在那里形成了一个新的种群，目前支持着稳定的商业捕捞业。关于巴伦支海红帝王蟹不同组织中脂肪酸谱的信息很少。因此，对夏季在巴伦支海一个沿海地点采集的红帝王蟹性腺进行了气液色谱法分析，以确定其脂肪酸组成。红帝王蟹卵巢中总饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸的比例分别为25.9±2.0%、22.5±2.3%和51.6±2.5%；在睾丸中，这些水平分别占35.1±5.7%、19.1±2.0%和45.8±4.5%。大小不同以及新旧壳的红帝王蟹的脂肪酸谱相似。卵巢中的脂肪酸浓度高于睾丸，这反映了雌性红帝王蟹更高的繁殖投入。在来自巴伦支海的红帝王蟹卵巢中检测到的高水平二十二碳六烯酸和二十碳五烯酸表明，这些性腺可以成为人类饮食中这些脂肪酸的良好替代来源，和/或用于提取重要脂肪酸以用于医疗和制药行业。
