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当前位置: 首页 > 文章 > 清洁疏浚物掩埋对两种底栖生物存活的影响 上海海洋大学学报 2016,25 (2) 229-236
Position: Home > Articles > The effects of clean dredged materials burial on Ruditapes philippinarum and Perinereis aibuhitensis Journal of Shanghai Ocean University 2016,25 (2) 229-236

清洁疏浚物掩埋对两种底栖生物存活的影响

作  者：
季晓;徐韧;刘材材;陈中伟;吴祥贵
单  位：
国家海洋局东海环境监测中心
关键词：
疏浚物;粒度;掩埋深度;底栖生物;菲律宾蛤仔;双齿围沙蚕
摘  要：
为研究不同粒度疏浚物掩埋对于海洋底栖生物的致死效应影响,采用长江口地区的疏浚物模拟不同粒度、不同厚度掩埋菲律宾蛤仔(Ruditapes philippinarum)以及双齿围沙蚕(Perinereis aibuhitensis),并研究其存活情况。结果表明:菲律宾蛤仔和双齿围沙蚕掩埋后为了生存表现出垂直迁移行为,不同粒度疏浚物掩埋深度在一定范围内与菲律宾蛤仔的死亡率之间有显著的正相关关系;粒度为63~125μm时,菲律宾蛤仔96 hLC50为6.8 cm(95%置信区间为2.8~10.7 cm);粒度为63μm以下时,菲律宾蛤仔96 h-LC50为11.1 cm(95%置信区间为4.2~18.0 cm);而掩埋深度与双齿围沙蚕死亡率之间没有显著相关关系。实验结果表明不同粒度疏浚物掩埋对于不同底栖生物致死效应不同。
译  名：
The effects of clean dredged materials burial on Ruditapes philippinarum and Perinereis aibuhitensis
作  者：
JI Xiao;XU Ren;LIU Caicai;CHEN Zhongwei;WU Xianggui;East China Sea Monitoring Center,SOA;Key Laboratory of Integrated Monitoring and Applied Technology for Marine Harmful Algal Blooms,SOA;College of Marine Sciences,Shanghai Ocean University;
关键词：
dredged materials;;size;;burial depth;;benthos;;Ruditapes philippinarum;;Perinereis aibuhitensis
摘  要：
To study the lethal effect of different sizes and burial depth of the dredged materials on creatures residing in the ocean,our research buries Ruditapes philippinarum and Perinereis aibuhitensis using different size and depth of the dredged materials in the Yangtze Estuary to analyse the survival rate. The results showed that they survive by vertically migrating out of the dredged materials,and there is significant positive correlation between burial depth and mortality of Ruditapes philippinarum within a certain scope. When the size of burying material is 63- 125 μm,the 96h-LC50 of Ruditapes philippinarum was 6. 8 cm( 95%confidence interval was 2. 8- 10. 7 cm); When the size of burying material is under 63 μm,the 96h-LC50 of Ruditapes philippinarum was 11. 1 cm( 95% confidence interval was 4. 2- 18. 0 cm); howerer,there is no significant correlation between burial depth and mortality of Ruditapes philippinarum. The study results prove that the size and burial depth of the dredged materials have different lethal effects on different benthos.

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