文章摘要
象山湾常见海洋生物体内微塑料的丰度、形态和成分组成研究
Abundance, shape and chemical composition of microplastics in ten common marine species in Xiangshan Bay
投稿时间:2020-02-21  修订日期:2020-03-27
DOI:
中文关键词: 微塑料  粒径、形状和化学成分  海洋生物  象山湾
英文关键词: microplastic  size, shape and chemical composition  marine organisms  Xiangshan Bay
基金项目:国家自然科学基金委员会“创新研究群体科学基金”(40821004、41121064)
作者单位E-mail
于翔 中国科学院海洋研究所 yuxiang17@mails.ucas.ac.cn 
许莉莉 中国科学院海洋研究所  
刘强 自然资源部第二海洋研究所  
黄伟 自然资源部第二海洋研究所  
曹亮 中国科学院海洋研究所  
窦硕增 中国科学院海洋研究所 szdou@qdio.ac.cn 
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中文摘要:
      海洋微塑料污染已成为全球性环境问题,生物体内微塑料污染水平是评估其生物效应的基础。本研究以象山湾为例,研究了十种常见海洋生物(贝类、头足类、甲壳类和鱼类)的消化道、鳃和肌肉等组织内微塑料污染状况。结果表明,微塑料广泛存在于各种生物的消化道和鳃等组织内,在61.0% 的生物个体内共检出131个微塑料,平均丰度为1.3±1.5个/个体;其化学成分包括人造丝(RY;74.0%)、聚对苯二甲酸乙二醇酯(PET;14.5%)、聚丙烯(PP;3.8%)和聚酰胺(PA;3.1%)等9种类型。检出纤维状、碎片状和颗粒状3种形状的微塑料,分别占比95.4%,3.1%和1.5%;所有检测物种中均出现人造丝和纤维状微塑料。微塑料粒径在110-4796μm之间(平均1246±1119μm), 以≤1000μm的微塑料占比最高(55.2%)。养殖设施产生的典型泡沫状微塑料或PE、PP和PS塑料类型在生物体内出现频率和丰度较少。研究结果可为深入认识近海生物体内微塑料污染特征及其生物效应提供科学依据。
英文摘要:
      Marine microplastic pollution has become a global environmental problem. Understanding the status of microplastic pollution in living organisms is fundamental for assessing its biological effects on ecosystems. This study deals with the microplastic pollution ststus in the tissues (digestive tract, gill and muscle) of 10 common species in Xiangshan Bay. The results show that microplastics are widely present in all the ten species. A total of 131 microplastics were detected in 61.0% of the organisms, with an average abundance of 1.3±1.5 items/individual. A total of 9 microplastics were detected, with rayon (RY; 74.0%), polyethylene terephthalate (PET; 14.5%), polypropylene (PP; 3.8%) and polyamide (PA; 3.1%) comprising the majority of the plastics. In terms of shape, fiber, fragment and granule microplastics were detected, accounting for 95.4%, 3.1% and 1.5% of the total microplastics, respectively. Rayon and fiber are present in all species investigated. The size of the microplastics ranged from 110μm to 4796μm (1246±1119μm), with the ≤1000μm individuals accounting for 55.2% of the microplastics. PE, PP, and PS microplastics, as well as the typical foamed microplastics produced by breeding facilities, are detected less frequently and in abundance in living organisms.The findings can provide knowledge and data for understanding the status of microplastics pollution in marine organisms and evaluating their biological effects in coastal ecosystems.
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