Microplastic pollution in the Maowei Sea, a typical mariculture bay of China
Microplastic pollution in the Maowei Sea, a typical mariculture bay of China
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中国典型海水养殖湾毛尾海的微塑料污染
DOI：
10.1016/j.scitotenv.2018.12.192
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发表时间：
2019
影响因子：
9.8
通讯作者：
Shi Huahong
中科院分区：
文献类型：
--
作者：
Zhu Jingmin;Zhang Qiang;Li Yanping;Tan Shudan;Kang Zhenjun;Yu Xueying;Lan Wenlu;Cai Li;Wang Jingzhen;Shi Huahong
生物体摄入微塑料是人类通过食用海产品接触微塑料的潜在途径。尽管海水养殖已成为全球海产品的重要来源，但与野生环境相比，海水养殖区的微塑料含量受到的审查较少。茅尾海是一个渔业资源丰富的半封闭海湾。茅尾海及其渔业产品中微塑料的具体水平仍未确定。本文详细介绍了茅尾海养殖水体和生物群中微塑料的分布和特征。茅尾海表层水体中的微塑料含量在1.2-10.1个/L之间，其中河口牡蛎养殖场（10.1个/L）和钦州港（8.8-9.5个/L）的微塑料含量较高。三条入流河流的水样中，颗粒物的丰度范围为2.9 ~ 4.5个/L，与茅尾海表层水的丰度相当。在收集的12个物种的66条鱼中，在40条鱼的所有胃肠道（GIT）和鳃中观察到微塑料。在GIT和鳃测试中，微塑料的丰度分别为2.0至14.0和0.0至8.5个颗粒/个。相对于鳃，GIT中增强的颗粒/个体数字特别值得注意。底栖物种的微塑料丰度显著高于浮游物种（p< 0.05）。在所有牡蛎样品的软组织中也检测到微塑料，丰度从3.2到8.6个颗粒/个体不等。微塑性组合物主要由人造丝和聚酯组成，并且倾向于颜色为白色，形状为纤维状。总而言之，这些结果与茅尾海中高水平的微塑料相对应。由于研究区域是一个海水养殖湾，其渔业产品中观察到的微塑料污染提供了一个途径，人类exposities.Capsule摘要微塑料广泛存在于养殖水体和生物群中的猫尾海，海水养殖湾。
The ingestion of microplastics by organisms presents a potential exposure route for humans via seafood consumption. Although mariculture has become an essential source of seafood worldwide, the content of microplastics in the mariculture zone has received less scrutiny than in the wild environment. The Maowei Sea is a semi-closed bay that is rich in fishery resources. The specific levels of microplastics in the Maowei Sea and its fishery products remain undetermined. In this paper, we detail the distributions and characteristics of microplastics in the aquaculture water and biota of the Maowei Sea. Microplastics were detected in the range of 1.2–10.1 particles/L in Maowei Sea surface water, with high microplastic content in estuarine oyster nursery (10.1 particles/L) and Qinzhou harbor (8.8–9.5 particles/L) sites. In water samples from the three inflowing rivers, the abundances ranged from 2.9 to 4.5 particles/L, which is comparable to that in Maowei Sea surface water. Of 66 collected fish belonging to 12 species, microplastics were observed in all of the gastrointestinal tracts (GITs) and in the gills of 40 individuals. In the GIT and gill tests, the abundances of microplastics ranged from 2.0 to 14.0 and from 0.0 to 8.5 particles/individual, respectively. The enhanced particles/individual figures in the GIT relative to the gill are particularly noteworthy. Demersal species showed significantly higher abundances of microplastics than pelagic species (p< 0.05). Microplastics were also detected in the soft tissues of all oyster samples, with abundances ranging from 3.2 to 8.6 particles/individual. The microplastic composition was dominated by rayon and polyester and tended to be white in color and fibrous in shape. Altogether, these results correspond to high levels of microplastics in the Maowei Sea. As the study region is a mariculture bay, the observed microplastics contamination in its fishery products presents a route for human exposure.Capsule abstractMicroplastics are widespread in the aquaculture water and biota in the Maowei Sea, a mariculture bay.