Meta-analysis of the effects of microplastic on fish: Insights into growth, survival, reproduction, oxidative stress, and gut microbiota diversity

IF 11.4 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Water Research Pub Date : 2024-09-21 DOI:10.1016/j.watres.2024.122493

Jiaqi Wang, Fan Wu, Shunqi Dong, Xusheng Wang, Shunhao Ai, Zhengtao Liu, Xiaonan Wang

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Abstract

Aquatic ecosystems are primary repositories for microplastics (MPs), which pose significant risks to aquatic organisms. This study addresses the gap in understanding the effects of MPs pollution by analyzing 3,757 biological endpoints from 85 laboratory studies. Overall, our results indicate that MPs exposure significantly inhibits fish growth, survival, and reproductive ability, and increases oxidative damage, specifically, MPs exposure leads to elevated levels of malondialdehyde. However, MPs do not have a significant impact on the diversity of fish gut microbiota. Subgroup and correlation analyses indicate that the extent of various toxic effects is influenced by multiple factors, including MPs’ type, exposure pathway, size, concentration, as well as the aquatic environment or life stage of the fish. In addition, the regression analysis revealed a relationship between the magnitude of toxic effects and the size, concentration, or duration of MPs exposure. This study provides useful information for understanding the potential impacts of MPs on aquatic organisms and offers new insights for the protection and management of aquatic ecosystems.

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微塑料对鱼类影响的元分析：对生长、存活、繁殖、氧化应激和肠道微生物群多样性的见解

水生生态系统是微塑料（MPs）的主要存放地，而微塑料对水生生物构成了重大风险。本研究通过分析 85 项实验室研究中的 3,757 个生物终点，填补了人们对 MPs 污染影响认识的空白。总体而言，我们的研究结果表明，接触 MPs 会明显抑制鱼类的生长、存活和繁殖能力，并增加氧化损伤，特别是 MPs 会导致丙二醛水平升高。不过，MPs 对鱼类肠道微生物群的多样性并无明显影响。分组和相关分析表明，各种毒性效应的程度受多种因素的影响，包括 MPs 的类型、暴露途径、大小、浓度以及鱼类所处的水生环境或生命阶段。此外，回归分析表明，毒性效应的大小与 MPs 的大小、浓度或接触时间长短之间存在关系。这项研究为了解 MPs 对水生生物的潜在影响提供了有用的信息，并为水生生态系统的保护和管理提供了新的见解。

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来源期刊

Water Research 环境科学-工程：环境

CiteScore

20.80

自引率

9.40%

发文量

1307

审稿时长

38 days

期刊介绍： Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include: •Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management; •Urban hydrology including sewer systems, stormwater management, and green infrastructure; •Drinking water treatment and distribution; •Potable and non-potable water reuse; •Sanitation, public health, and risk assessment; •Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions; •Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment; •Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution; •Environmental restoration, linked to surface water, groundwater and groundwater remediation; •Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts; •Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle; •Socio-economic, policy, and regulations studies.