CORC

浏览/检索结果: 共31条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
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
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:37/0  |  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.  
一种激光器散热装置 专利
专利号: CN208157846U, 申请日期: 2018-11-27, 公开日期: 2018-11-27
作者:  温培英;  李枕;  李增祥;  马佩良;  侯双
收藏  |  浏览/下载:19/0  |  提交时间:2019/12/24
正交试验法优化泥沙分离器结构参数 期刊论文
机械设计与制造, 2018, 期号: 2018年09期, 页码: 79-82
作者:  杨子渝;  张力
收藏  |  浏览/下载:1/0  |  提交时间:2019/11/13
30例小儿甲状舌管囊肿术后不置引流管的临床分析 期刊论文
中国耳鼻咽喉颅底外科杂志, 2018, 卷号: 24, 期号: 1
作者:  肖洋;  马静;  林垦;  高映勤;  明澄
收藏  |  浏览/下载:8/0  |  提交时间:2019/12/04
一种煤矿井下除尘装置 专利
申请日期: 2018-01-01, 公开日期: 2018
作者:  芦庆和;  许猛堂;  刘萍;  钟诗颖;  刘义宗
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/30
基于正交的割缝式旋流器结构优选和试验研究 期刊论文
流体机械, 2017, 期号: 5, 页码: 1-5+10
尚晓峰; 马文勇; 王志坚; 蒋明虎; 赵立新
收藏  |  浏览/下载:11/0  |  提交时间:2017/08/17
水力旋流器新型出口挡板结构对分离性能的影响 期刊论文
化工学报, 2017, 卷号: 69, 期号: 05, 页码: 2081-2088
作者:  刘鸿雁;  韩天龙;  王亚;  黄青山
收藏  |  浏览/下载:12/0  |  提交时间:2019/06/17
基于正交试验法的旋流分离器结构优化研究 学位论文
2017
作者:  杨子渝
收藏  |  浏览/下载:3/0  |  提交时间:2020/11/05
新型两级气浮旋流设备结构优化与性能研究 期刊论文
石油机械, 2016, 卷号: 44, 期号: 01, 页码: 103-107
作者:  魏丛达;  吴奇霖;  史仕荧;  吴应湘;  许晶禹
收藏  |  浏览/下载:20/0  |  提交时间:2017/12/26
膈疝合并胃底-胸腔瘘1例 期刊论文
中华胸心血管外科杂志, 2016, 期号: 2
作者:  周阎;  杨绍军;  马利明;  覃莹
收藏  |  浏览/下载:7/0  |  提交时间:2019/12/04


©版权所有 ©2017 CSpace - Powered by CSpace