| 应用稳定碳氮同位素分析法研究广东流沙湾海域白腹小沙丁鱼的营养级 |
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| 引用本文： | 杨国欢,侯秀琼,孙省利,陈春亮.应用稳定碳氮同位素分析法研究广东流沙湾海域白腹小沙丁鱼的营养级[J].台湾海峡,2011,30(4):467-472. |
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| 作者姓名： | 杨国欢 侯秀琼 孙省利 陈春亮 |
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| 作者单位： | 广东海洋大学分析测试中心,广东湛江,524088 |
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| 基金项目： | 广东省自主创新重大科技专项资助项目 |
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| 摘 要： | 对2008年5—11月采集的广东流沙湾海域白腹小沙丁鱼（Sardinellaclupeoides）进行稳定碳、氮同位素比值的测定，分析比较了5个不同体长组的差异，并以此为基础推算其营养级．结果表明，流沙湾白腹小沙丁鱼的δ^13C值变化范围为一17．61％。一15．99％。，平均值为一16．59‰，与浮游动物的δ^13C均值（一17．27％0）较为相近．其6”N值变化范围为12．73％。～15．26％0，平均值为14．03％0，比浮游动物的6”N均值（10．56％0）高出3．47％0．5个体长组的8¨c、8”N平均值没有随着体长的增大而增大．由δ15N值推算出广东流沙湾海域白腹小沙丁鱼的营养级范围为2．24～3．25，平均值为2．76，符合其主要摄食浮游动物的食性．
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| 关 键 词： | 海洋生物学 营养级 体长 稳定同位素 δ^13C值 δ^15C值白腹小沙丁鱼 流沙湾 |
Trophic levels of Sardinella clupeoides in Liusha Bay, Guangdong Province, China, through stable carbon and nitrogen isotope analysis |
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| YANG Guo-huan,HOU Xiu-qiong,SUN Sheng-li,CHEN Chun-liang.Trophic levels of Sardinella clupeoides in Liusha Bay, Guangdong Province, China, through stable carbon and nitrogen isotope analysis[J].Journal of Oceanography In Taiwan Strait,2011,30(4):467-472. |
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| Authors: | YANG Guo-huan HOU Xiu-qiong SUN Sheng-li CHEN Chun-liang |
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| Institution: | YANG Guo-huan,HOU Xiu-qiong,SUN Sheng-li,CHEN Chun-liang(Analytical and Testing Centre of Guangdong Ocean University,Zhanjiang 524088,China) |
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| Abstract: | To study the stable isotope values and trophic levels of Sardinella clupeoides in Liusha Bay of Guangdong Province in southern China,twenty subjects were collected from May to November 2008 and were analyzed by stable carbon and nitrogen isotope analysis.The differences were compared and analyzed among five different groups of fish grouped according to different body lengths and the trophic levels were calculated through adopting SerCon 20-20H Stable Isotope Ratio Mass Spectrometer.The current study showed ... |
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| Keywords: | marine biology trophic level body length stable isotope δ13C value δ15N value Sardinella clupeoides Liusha Bay |
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