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Ingestion, egestion and physiological effects of polystyrene microplastics on the marine jellyfish Rhopilema esculentum

文献类型： 外文期刊

作者： Ge, Jianlong 1 ; Li, Bin 1 ; Liao, Meijie 1 ; Zhang, Zheng 1 ; Chen, Siqing 1 ; Xia, Bin 1 ; Wang, Yingeng 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

2.Lab Marine Ecol & Environm Sci, Pilot Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China

关键词： Scyphozoan; Medusa; Microplastic; Polystyrene; Ingestion

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.8； 五年影响因子：6.5 ）

ISSN： 0025-326X

年卷期： 2023 年 187 卷

页码：

收录情况： SCI

摘要： Jellyfish are planktonic predators that may be susceptible to ingesting microplastics. However, the effects of MP exposure on jellyfish are poorly understood. In this study, the ingestion and egestion of polystyrene microbeads, and its chronic physiological effects on Rhopilema esculentum at an environmental concentration (100 items/L) and a predicted concentration (1000 items/L) were evaluated. The results showed that the ingestion amount of juvenile medusae was relatively low. The MP egestion rates reached 100 % within 9 h of clearance. Chronic exposure (15 days) to MPs at environmental concentrations led to no adverse impacts. Nevertheless, the pre-dicted concentration of MP exposure induced growth inhibition, a reduction in assimilation efficiency, oxygen consumption increase, and lipase enzyme activity reduction in the jellyfish, indicating that MPs can cause adverse effects on the energy budget of jellyfish in the near future. Our study provides new insights into the potential risk of MPs in marine environments.

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