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碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究 期刊论文  OAI收割
海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82
作者:  
李宝泉
  |  收藏  |  浏览/下载:15/0  |  提交时间:2020/06/17
潮间带  大型底栖动物  碳氮稳定同位素  食源和营养级分析  采样部位选取  intertidal zone  macrobenthos  carbon and nitrogen stable isotopes  food sources and trophic levels study,sampling parts  The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes  when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.  
近地激光通信端机粗精跟踪系统非线性振动特性分析与优化 学位论文  OAI收割
中国科学院大学(中国科学院长春光学精密机械与物理研究所): 中国科学院大学(中国科学院长春光学精密机械与物理研究所), 2018
作者:  
王涛
  |  收藏  |  浏览/下载:9/0  |  提交时间:2019/09/23
同步辐射双能CT图像的高精度配准研究 学位论文  OAI收割
硕士: 中国科学院研究生院(上海应用物理研究所), 2016
作者:  
收藏  |  浏览/下载:20/0  |  提交时间:2016/12/16
高速列车气动优化设计研究 学位论文  OAI收割
博士, 北京: 中国科学院研究生院, 2014
作者:  
姚拴宝
收藏  |  浏览/下载:132/0  |  提交时间:2014/08/28
汽车变速器新产品故障诊断机器学习方法研究 学位论文  OAI收割
博士, 中国科学院沈阳自动化研究所: 中国科学院沈阳自动化研究所, 2012
作者:  
周晓锋
收藏  |  浏览/下载:226/0  |  提交时间:2012/07/27