吕泗渔场经济鱼类的微塑料污染特征
Characteristics of microplastics pollution for economic fish in Lüsi fishing ground
胡文博 1张硕 2舒瑞霖 1高世科1
作者信息
- 1. 上海海洋大学海洋生物资源与管理学院,上海 201306
- 2. 上海海洋大学海洋生物资源与管理学院,上海 201306;大洋渔业资源可持续开发教育部重点实验室,上海 201306;国家远洋渔业工程技术研究中心,上海 201306;农业农村部大洋渔业开发重点实验室,上海 201306
- 折叠
摘要
为研究微塑料污染对中国近海鱼类的潜在危害,以江苏省吕泗渔场经济鱼类为例,通过检测其胃中微塑料的丰度、形状、颜色、粒径和聚合物成分,分析了鱼类微塑料污染的种间差异,以及微塑料丰度与鱼类体长、体质量和所处营养位置的关系.结果表明:286尾鱼类样品体内均存在微塑料,平均丰度为(2.46±1.42)个/尾,平均粒径为(2.18±0.43)mm;微塑料主要呈蓝色纤维状,聚对苯二甲酸乙二醇酯(PET,83.9％)是主要的聚合物类型;微塑料丰度与鱼类体长、体质量和营养位置间无显著相关性(P＞0.05),也未发现微塑料在鱼体内发生生物放大现象.研究表明,微塑料在调查区域中普遍存在,鱼类的体型、食性及栖息水层对其摄入微塑料的过程影响最为显著.
Abstract
In order to probe the potential harm of microplastic pollution to fish in coastal waters in China,286 sam-ples of fish were collected in Lüsi fishing ground,the differences in microplastics pollution characteristics among fish species and the relationship between abundance of microplastic and length(weight)of fish and trophic position(via stable isotopes)were analyzed by detection of abundance of microplastic,shape,color,particle size and poly-mer type in stomach of fish via improved alkaline method for extraction of microplastics.The results showed that all fish samples contained primarily blue fibers microplastics,with an average abundance of(2.46±1.42)pieces/fish and an average particle size of(2.18±0.43)mm,with main polymer type of polyethylene terephthalate(83.9％).In addition,there was no significant correlation between the abundance of microplastics and the length(weight)and trophic position of fish(P＞0.05),without biomagnification in the abundance of microplastics.The findings in-dicate that microplastics are widespread in the coastal waters,and the intake of microplastics significantly depends on body shape,feeding habits and habitat water layer of fish.
关键词
微塑料/污染特征/体型/稳定同位素/营养位置Key words
microplastics/pollution characteristics/somatotype/stable isotope/trophic position引用本文复制引用
基金项目
江苏海州湾国家海洋牧场示范项目(D-8005-18-0188)
上海市科学技术委员会地方能力建设项目(21010502200)
出版年
2024
NETL
NSTL
万方数据