冉文,滕佳,刘永亮,吴迪,侯朝伟,王清,刘辉,赵建民.环渤海潮间带长牡蛎微塑料富集特征研究[J].海洋通报,2018,(5):583-590
环渤海潮间带长牡蛎微塑料富集特征研究
Microplastic ingestion characteristics in the Pacific oysters collected from the intertidal zone of the Bohai Rim
投稿时间:2018-03-03  修订日期:2018-04-26
DOI:
中文关键词:  微塑料,环渤海,长牡蛎,富集
英文关键词:microplastic  the Bohai Rim  Crassostrea gigas  enrichment
基金项目:国家自然科学基金 (41576122);中国科学院青年创新促进研究会项目 (2016196)
作者单位E-mail
冉文 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049 wran@yic.ac.cn 
滕佳 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049  
刘永亮 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049  
吴迪 西华大学成都 610039  
侯朝伟 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049  
王清 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049 qingwang@yic.ac.cn 
刘辉 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049  
赵建民 中国科学院烟台海岸带研究所 牟平海岸带环境综合试验站山东 烟台 264003中国科学院大学北京 100049  
摘要点击次数: 107
全文下载次数: 44
中文摘要:
      微塑料是指最大粒径小于 5 mm 的塑料微粒,近年来其污染问题受到广泛的关注。2017 年 6 月,在环渤海潮间带 9个站位采集了野生长牡蛎 (Crassostrea gigas) 样品,通过组织消解、滤膜分离和显微镜检筛分微塑料样品,并利用显微傅里叶变换红外光谱仪 (μ-FT-IR) 对其化学成分进行分析。结果表明,环渤海潮间带长牡蛎体内的微塑料摄入率为 73.91 %~95.65 %;微塑料平均丰度为 2.03 个/个体,每克生物组织平均丰度为 0.89 个。长牡蛎体内的微塑料形状以纤维类最多,所占比例为 67.06 %,其次为碎片类,薄膜和颗粒类所占比例较少。微塑料颜色以蓝色居多,其次为白色。长牡蛎体内粒径小于500 μm 的微塑料所占比例最高,其次为粒径500~1 000 μm 的微塑料。微塑料化学成分包括人造纤维、聚乙烯、聚对苯二甲酸乙二醇酯、聚丙烯、聚酰胺、聚苯乙烯等 6 种类型,其中人造纤维所占比例高达50%。以上结果表明,环渤海潮间带长牡蛎体内均存在一定的微塑料富集;与国内外其它研究相比,整体处于中等偏下水平;港口等站位的长牡蛎体内的微塑料丰度较高,而自然保护区站位的长牡蛎体内的微塑料丰度较低,表明微塑料污染与人类活动频繁程度密切相关。
英文摘要:
      Microplastics are defined as plastic particles with the largest size of less than 5 mm. At present, the pollution status of microplastics have received much concern. The Pacific oyster Crassostrea gigas samples were collected from nine stations in the intertidal zone of the Bohai Rim in June 2017. The microplastics in oysters were separated by tissue digestion and examined by stereoscopic microscope, and the polymer types were identified by microscopic Fourier transform infrared spectrometry (μ-FT-IR) . The results indicated that 73.91 %~95.65 % of the Pacific oysters ingested microplastics, and the average abundance of microplastic was 2.03/individual or 0.89 /g tissue (wet weight) The fiber was the main type of microplastics found in the Pacific oysters, with an average of 60.67 %, followed by fragments, while the proportion of films and pellets was relatively small. The color of microplastic was mostly blue and followed by white. The proportion of microplastics with a particle size of less than 500 μm was the highest, followed by microplastics with a size of 500~1 000 μm. The polymer types of microplastics included Rayon, polyethylene, polyethylene terephthalate, polypropylene, polyamide, and polystyrene,among which rayon accounted for as much as 50.00%. Above all, microplastic ingestion by the Pacific oysters were widespread in the intertidal zone of the Bohai Rim. Our results suggested that the abundance of microplastics in the Pacific oysters collected from the intertidal zone of the Bohai Rim was generally higher than the average level reported in other studies. Additionally, the abundance of microplastics in the Pacific oysters was high in the port station and low in the nature reserve station, indicating that the level of microplastic contamination was mainly affected by human activities.
查看全文    下载PDF阅读器
关闭