Factors aff ecting lipid and fatty acid composition of Calanus sinicus in the Yellow Sea and the East China Sea in spring  

作　　者：Yanqing WANG Zhencheng TAO Chaolun LI Mengtan LIU 

机构地区：[1]Key Laboratory of Marine Ecology and Environmental Sciences,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Ecology and Environmental Science,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]Engineering and Technology Department,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [4]Jiaozhou Bay National Marine Ecosystem Research Station,Chinese Academy of Sciences,Qingdao 266071,China [5]Center of Deep Sea Research,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [6]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [7]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Oceanology and Limnology》2022年第1期173-182,共10页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.41706189);the National Key R&D Program of China(Nos.2017YFC1404401,2017YFC1404402);the Science&Technology Basic Resources Investigation Program of China(No.2017FY100803)。

摘　　要：The factors aff ecting lipid and fatty acid composition of copepod Calanus sinicus in the Yellow Sea(YS)and the East China Sea(ECS)were examined in this study.In spring,there were signifi cant diff erences between these two regions for both environmental conditions and food availability.Such regional diff erence signifi cantly infl uenced the lipid and fatty acid profi les of C.sinicus.Our results show that C.sinicus has a higher lipids content in ECS,especially for wax ester and triglyceride lipids,indicating a more active and effi cient predation.According to BIO-ENV analysis,the variation of lipids profi les may be infl uenced majorly by water temperature.Moreover,the fatty acids(FAs)profi les of C.sinicus were also diff erent between YS and ECS,especially in the four major contributors,C22꞉1ω11,eicosapentaenoic acid(EPA),docosahexenoic acid(DHA),and C20꞉1ω9.The considerable amounts of self-biosynthesized FAs of herbivorous copepod(C22꞉1ω11 and C20꞉1ω9)and low DHA/EPA ratio may indicate that C.sinicus in ECS feed mainly on phytoplankton comparing to those in YS.The fatty acid profi les of C.sinicus were aff ected by the diff erences in food availability.

关 键 词：Calanus sinicus lipid storage wax ester fatty acid composition Yellow Sea and East China Sea 

分 类 号：Q958[生物学—动物学]