Microplastics in oysters &ITSaccostrea cucullata&IT along the Pearl River Estuary, China
Microplastics in oysters &ITSaccostrea cucullata&IT along the Pearl River Estuary, China
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DOI：
10.1016/j.envpol.2018.01.083
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发表时间：
2018-05-01
影响因子：
8.9
通讯作者：
Rittschof, Daniel
中科院分区：
文献类型：
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作者：
Li, Heng-Xiang;Ma, Li-Sha;Rittschof, Daniel
河口作为河流环境与海洋环境的过渡带，对微塑料的来源、积累和迁移起着重要作用。虽然河口环境是微塑料污染的热点，但微塑料污染与水生生物之间的相关性却鲜为人知。本文调查了中国南方珠江口沿着11个采样点的僧帽牡蛎（Saccostrea cucullata）的微塑料污染情况。牡蛎体内的微塑料丰度范围为1.4 ~ 7.0个/个体或1.5 ~ 7.2个/g组织湿重，与周围沃茨的微塑料丰度呈正相关。城市附近的牡蛎比农村地区的牡蛎含有更多的微塑料。纤维占牡蛎中微塑料总量的69.4%。微塑料粒径在20 ~ 5000 μ m之间，其中83.9%小于100 μ m。浅色微塑料明显比深色微塑料更常见。根据研究结果，牡蛎可作为河口微塑料污染的生物监测者。(C)2018爱思唯尔有限公司版权所有。
As a transitional zone between riverine and marine environments, an estuary plays an important role for the sources, accumulation and transport of microplastics. Although estuarine environments are hotspots of microplastic pollution, the correlation between microplastic pollution and aquatic organisms is less known. Here we investigated microplastic pollution in wild oysters Saccostrea cucullata from 11 sampling sites along the Pearl River Estuary in South China. The microplastic abundances in oysters ranged from 1.4 to 7.0 items per individual or from 1.5 to 7.2 items per gram tissue wet weight, which were positively related to those in surrounding waters. The oysters near urban areas contained significantly more microplastics than those near rural areas. Fibers accounted for 69.4% of the total microplastics in oysters. Microplastic sizes varied from 20 to 5000 mu m and 83.9% of which were less than 100 mu m. Light color microplastics were significantly more common than dark color ones. Based on the results, oysters are recommended as a biomonitor for the microplastic pollution in estuaries. (C) 2018 Elsevier Ltd. All rights reserved.