Dvoretsky Alexander G, Dvoretsky Vladimir G
Murmansk Marine Biological Institute of the Russian Academy of Sciences (MMBI RAS), Murmansk 183038, Russia.
Biology (Basel). 2025 Jan 31;14(2):148. doi: 10.3390/biology14020148.
The red king crab, , is a commercially significant crustacean that supports lucrative fisheries in Russia, the USA, and Norway. The western Kamchatka shelf, located in the Sea of Okhotsk, is home to one of the most important populations of the red king crab. In this study, we have conducted a review of the symbionts associated with in the waters off the Kamchatka Peninsula. A total of 42 symbiotic species belonging to 14 different phyla were identified in association with the red king crab. Out of these, 14 species were found to be parasitic to the red king crab, while the remaining 28 were either commensal or epibiont in nature. The taxa with the highest number of associated species included ciliates (11), crustaceans (8), and acanthocephalans (4). Our study found that red king crabs suffering from shell disease exhibited a more diverse symbiotic fauna and higher infestation indices as compared to healthy crabs, which were found to be free from parasites. Dangerous symbionts, such as dinoflagellates sp. and rhizocephalan barnacles , had low incidence rates, indicating that the red king crab population in the Sea of Okhotsk is in good condition with respect to population abundance, health, and recruitment and is not being adversely impacted by symbiotic organisms.
红帝王蟹（ ）是一种具有重要商业价值的甲壳类动物，在俄罗斯、美国和挪威支撑着利润丰厚的渔业。位于鄂霍次克海的堪察加半岛西部大陆架是红帝王蟹最重要的种群栖息地之一。在本研究中，我们对堪察加半岛海域与红帝王蟹相关的共生生物进行了综述。共鉴定出与红帝王蟹相关的42种共生生物，分属于14个不同的门。其中，有14种被发现寄生于红帝王蟹，其余28种本质上要么是共栖生物，要么是附着生物。相关物种数量最多的类群包括纤毛虫（11种）、甲壳类动物（8种）和棘头虫（4种）。我们的研究发现，与未感染寄生虫的健康螃蟹相比，患有壳病的红帝王蟹表现出更多样化的共生动物群落和更高的感染指数。危险的共生生物，如甲藻（ 种）和根头蟹类藤壶（ ），发病率较低，这表明鄂霍次克海的红帝王蟹种群在数量、健康状况和补充方面状况良好，并未受到共生生物的不利影响。
