文章基本信息

标题：Sediment sampling with a core sampler equipped with aluminum tubes and an onboard processing protocol to avoid plastic contamination
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作者：Masashi Tsuchiya ; Hidetaka Nomaki ; Tomo Kitahashi 等
期刊名称：MethodsX
印刷版ISSN：2215-0161
电子版ISSN：2215-0161
出版年度：2019
卷号：6
页码：2662-2668
DOI：10.1016/j.mex.2019.10.027
语种：English
出版社：Elsevier
摘要：Graphical abstractDisplay OmittedAbstractMicroplastics are abundant even on the deep-sea floor far from land and the ocean surface where human activities take place. To obtain samples of microplastics from the deep-sea floor, a research vessel and suitable sampling equipment, such as a multiple corer, a box corer, or a push corer manipulated by a remotely operated (ROV) or human occupied vehicle (HOV) are needed. Most such corers use sampling tubes made of plastic, such as polycarbonate, acrylic, or polyvinyl chloride. These plastic tubes are easily scratched by sediment particles, in particular during collection of coarse sandy sediments, and, consequently, the samples may become contaminated with plastic from the tube. Here, we report on the use of aluminum tubes with both a multiple corer and a push corer to prevent such plastic contamination. When compared with plastic tubes, aluminum tubes have the disadvantages of heavier weight and non-transparency. We suggest ways to overcome these problems, and we also present an onboard processing protocol to prevent plastic contamination during sediment core sampling when plastic tubes are used.•Use of a sediment corer with aluminum tubes reduces the risk of plastic contamination in the sediment samples•The proposed method allows undisturbed sediment cores to be retrieved with comparable efficiency to conventional transparent core tubes
关键词：Microplastics;Aluminum-made core sampler;Environmental monitoring