Dai ZF; Zhang HB
; Zhou Q; Tian Y; Chen T; Tu C; Fu CC; Luo YM发表期刊Environmental Pollution
ISSN0269-7491
2018
卷号242期号:B页码:1557-1565
关键词Bohai seaMicroplasticsSedimentVertical distributionWater column
研究领域Environmental Sciences & Ecology
DOI10.1016/j.envpol.2018.07.131
产权排序1
作者部门海岸带环境过程实验室
英文摘要Microplastics may lose buoyancy and occur in deeper waters and ultimately sink to the sediment and this may threaten plankton inhabiting in various water layers and benthic organisms. Here, we conduct the first survey on microplastics in the water column and corresponding sediment in addition to the surface water in the Bohai Sea. A total of 20 stations covering whole Bohai Sea were selected, which included 6 stations specified for water column studying. Seawater was sampled every 5 m, with maximal depth of 30 m in the water column using Niskin bottles coupled with a ship-based conductivity, temperature and depth sensor (CTD) system and surface sediment samples were collected using box corer. The results indicated that higher microplastic levels accumulated at a depth range of 5-15 m in the water column in some stations, suggesting the surface water survey was not sufficient to reflect microplastics loading in a water body. Fibers predominated microplastic types in both seawater and sediment of the Bohai Sea, which accounted for 75%-96.4% of the total microplastics. However the relatively proportion of the fibers in the deeper water layers and sediment was lower than that in the surface water. Microplastic shapes are more diverse in the sediment than in the seawater in general. The microplastic sizes changed with depth in the water column and the proportion of the size-fraction < 300 mu m increased with depth, probably as a result of rapid biofouling on the small microplastics due to their higher specific surface area. Such depth distribution also implied that sampling with manta net (>330 mu m) that commonly used in the oceanographic survey might underestimate microplastics abundance in the water column. Further studies are recommended to focus on the sinking behavior of microplastics and their effects on marine organisms. (C) 2018 Elsevier Ltd. All rights reserved.
文章类型Article
收录类别SCI
语种英语
关键词[WOS]BOHAI SEA; PLASTIC DEBRIS; PACIFIC-OCEAN; SURFACE-WATER; BALTIC SEA; CHINA; ENVIRONMENT; MARINE; ECOSYSTEMS; ABUNDANCE
研究领域[WOS]Environmental Sciences
WOS记录号WOS:000446282600056
引用统计被引频次：90[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24148
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
通讯作者Luo YM推荐引用方式
GB/T 7714Dai ZF,Zhang HB,Zhou Q,et al. Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities[J]. Environmental Pollution,2018,242(B):1557-1565.
APADai ZF.,Zhang HB.,Zhou Q.,Tian Y.,Chen T.,...&Luo YM.(2018).Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities.Environmental Pollution,242(B),1557-1565.
MLADai ZF,et al."Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities".Environmental Pollution 242.B(2018):1557-1565.
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