Seasonal Variation of Biochemical Components in Clam (Saxidomuspurpuratus Sowerby 1852) in Relation to Its Reproductive Cycle and the Environmental Condition of Sanggou Bay, China

查看全文 作　　者：BI [1,2]Jinhong;LI [1]Qi;ZHANG [2]Xinjun;ZHANG [2]Zhixin;TIAN [2]Jinling;XU [2]Yushan;LIU [3]Wenguang

机构地区：[1]Key Laboratory of Mariculture of Ministry of Education, Ocean University of China, Qingdao 266003, P. R. China;[2]Rongcheng Fishery Technical Extension Station, Rongcheng 264300, P. R. China;[3]Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China

出　　处：《Journal of Ocean University of China》索引2016年第15卷第2期,共10页

基　　金：supported by the grants from National Marine Public Welfare Research Program (201305005);Scientific and Technical Supporting Program (2011BA D13B01);National Natural Science Foundation of China (41276138) 摘　　要：Seasonal variation of biochemical components in clam(Saxidomus purpuratus Sowerby 1852) was investigated from March 2012 to February 2013 in relation to environmental condition of Sanggou Bay and the reproductive cycle of clam.According to the histological analysis,the reproductive cycle of S.purpuratus includes two distinctive phases:a total spent and inactive stage from November to January,and a gametogenesis stage,including ripeness and spawning,during the rest of the year.Gametes were generated at a low temperature(2.1℃) in February.Spawning took place once a year from June to October.The massive spawning occurred in August when the highest water temperature and chlorophyll a level could be observed.The key biochemical components(glycogen,protein and lipid) in five tissues(gonad,foot,mantle,siphon and adductor muscle) were analyzed.The glycogen content was high before gametogenesis,and decreased significantly during the gonad development in the gonad,mantle and foot of both females and males,suggesting that glycogen was an important energy source for gonad development.The protein and lipid contents increased in the ovary during the gonad development,demonstrating that they are the major organic components of oocytes.The lipid and protein contents decreased in the testis,implying that they can provide energy and material for spermatogenesis.The results also showed that protein stored in the mantle and foot could support the reproduction after the glycogen was depleted. 关键词：生殖周期生化成分季节变化桑沟湾蛤蜊环境蛋白质含量性腺发育

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Seasonal Variation of Biochemical Components in Clam (Saxidomuspurpuratus Sowerby 1852) in Relation to Its Reproductive Cycle and the Environmental Condition of Sanggou Bay, China

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