Microplastics in freshwater and wild fishes from Lijiang River in Guangxi, Southwest China

doi:10.1016/j.scitotenv.2020.142428

. 2021 Feb 10;755(Pt 1):142428.

doi: 10.1016/j.scitotenv.2020.142428. Epub 2020 Sep 25.

Microplastics in freshwater and wild fishes from Lijiang River in Guangxi, Southwest China

Lishan Zhang¹, Yuanshan Xie², Shan Zhong¹, Junyong Liu³, Yan Qin⁴, Pin Gao⁵

Affiliations

¹ School of Life and Environment Sciences, Guilin University of Electronic Technology, Guilin 541004, China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, China.
² College of Environment and Resources, Guangxi Normal University, Guilin 541004, China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, China.
³ School of Life and Environment Sciences, Guilin University of Electronic Technology, Guilin 541004, China; College of Environment and Resources, Guangxi Normal University, Guilin 541004, China.
⁴ College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
⁵ College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China. Electronic address: pingao@dhu.edu.cn.

PMID: 33032132
DOI: 10.1016/j.scitotenv.2020.142428

Microplastics in freshwater and wild fishes from Lijiang River in Guangxi, Southwest China

Lishan Zhang et al. Sci Total Environ. 2021.

. 2021 Feb 10;755(Pt 1):142428.

doi: 10.1016/j.scitotenv.2020.142428. Epub 2020 Sep 25.

Authors

Lishan Zhang¹, Yuanshan Xie², Shan Zhong¹, Junyong Liu³, Yan Qin⁴, Pin Gao⁵

Affiliations

¹ School of Life and Environment Sciences, Guilin University of Electronic Technology, Guilin 541004, China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, China.
² College of Environment and Resources, Guangxi Normal University, Guilin 541004, China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, China.
³ School of Life and Environment Sciences, Guilin University of Electronic Technology, Guilin 541004, China; College of Environment and Resources, Guangxi Normal University, Guilin 541004, China.
⁴ College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
⁵ College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China. Electronic address: pingao@dhu.edu.cn.

PMID: 33032132
DOI: 10.1016/j.scitotenv.2020.142428

Abstract

Microplastics (MPs) are ubiquitous contaminants of emerging concern that have gained great attention recently due to their widespread appearance in the environment and potential adverse effects on living biota. Lijiang in Guangxi in China is a world-famous place of tourist attraction and attracted thousands of visitors every year. However, little is known regarding occurrence and distribution of MPs in freshwater and wild fishes in the Lijiang River. In this study, we used stereoscopy and micro Fourier transform infrared spectrometry (μ-FTIR) methods to investigate the abundance, morphotype, size distribution, and polymer type of MPs in freshwater collected by plankton nets and bulk sampling by pumping and filtration. Results showed that abundance of MPs in freshwater with bulk sampling by pumping (67.5 ± 65.6 items/m³) was significantly higher than those using plankton nets (0.67 ± 0.41 items/m³ and 0.15 ± 0.15 items/m³ for mesh sizes of 75 μm and 300 μm, respectively). An average abundance of MPs detected in wild fishes was 0.6 ± 0.6 items/individual, of which, a majority was found in the gastrointestinal tracts. Large-sized (>0.3 mm) and colored MPs in morphotypes of flakes and fibers dominated in both freshwater and wild fishes. Polypropylene-polyethylene copolymer and polyethylene were the top two abundant polymer types of MPs in freshwater, while polyethylene terephthalate dominated in wild fishes. This study provides evidences for our better understanding of pollution status of MPs in the Lijiang River.

Keywords: Freshwater; Microplastics; Plankton net; Wild fish; μ-FTIR.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Microplastics in freshwater and wild fishes from Lijiang River in Guangxi, Southwest China

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Microplastics in freshwater and wild fishes from Lijiang River in Guangxi, Southwest China

Authors

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Conflict of interest statement

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