Lipid content and composition of <em>Calanus sinicus</em> in the Yellow Sea in spring and autumn

Wang Yanqing; Li Chaolun; Liu Mengtan; Jin Xin; Wang Xiaodong; Sun Yongkun

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Wang Yanqing, Li Chaolun, Liu Mengtan, Jin Xin, Wang Xiaodong, Sun Yongkun. Lipid content and composition of Calanus sinicus in the Yellow Sea in spring and autumn[J]. Haiyang Xuebao, 2014, 36(2): 99-107.

Citation:

Wang Yanqing, Li Chaolun, Liu Mengtan, Jin Xin, Wang Xiaodong, Sun Yongkun. Lipid content and composition of Calanus sinicus in the Yellow Sea in spring and autumn[J]. Haiyang Xuebao, 2014, 36(2): 99-107.

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Lipid content and composition of Calanus sinicus in the Yellow Sea in spring and autumn

1.
Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China
2.
Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
3.
Jiaozhou Bay Ecosystem Research Station,Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2012-10-27

Abstract

Abstract

Lipid plays an important role in reproduction, food scarcity and diapause of zooplankton. The present research studied the role of lipids in Calanus sinicus, and samples were collected from the Southern Yellow Sea in autumn (November, 2010) and spring (April, 2011). The results show that the total lipid content of female C. sinicus was about 10.6%-12% of dry body mass, while C5 stage in spring had a higher percentage, about 17% of dry mass. The major components in lipid classes were wax ester (WE) and phospholipid (PL), and they together contributed about 90% to total lipid, while triglyceride (TAG) accounted for only 6%. The role of different lipid classes was discussed as follows: (1) Wax ester served as an important energy deposit. The fluctuated WE content of C. sinicus suggested the different strategies in energy needs and utilization of different development stages and seasons. (2) The coincidence of active reproduction and high content of PL in female indicated that PL plays an important role in the egg production of C. sinicus. (3) The composition of TAG was relatively lower than that of WE and PL in C. sinicus, but it might work in the transformation of different lipid classes.
- Calanus sinicus,
- southern Yellow Sea,
- lipids,
- wax ester,
- phospholipid,
- triglyceride

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References(38)

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