Microplastic contamination in marine-cultured fish from the Pearl River Estuary, South China

Theresa Wing Ling LAM, Lincoln FOK, Tsz Hin Anson MA, Heng-Xiang LI, Xiang-rong XU, Ting On Lewis CHEUNG, Ming Hung WONG

Research output: Contribution to journalArticlespeer-review

3 Citations (Scopus)

Abstract

Microplastics are ubiquitous in the aquatic environment. However, the occurrence of microplastics in farmed fish is under-researched. Herein, microplastic abundance in the stomach and intestine of marine-cultured hybrid groupers (Epinephelus fuscoguttatus × Epinephelus lanceolatus) in the Pearl River Estuary (PRE) was examined. Microplastics were detected in all fish samples, with an average abundance of 35.36 n/individual or 0.62 n/g. The fish intestine contained more microplastics (23.91 n/individual, i.e., 1.10 n/g) than the stomach (12.80 n/individual, i.e., 0.37 n/g). In addition, the ingested microplastics were predominantly fibre-shaped (70.1%), and nearly 70% were smaller than 1 mm in diameter. Potential factors affecting the ingestion of microplastics by farmed hybrid groupers include fish diet and the availability of microplastics in their feeding habitat. Copyright © 2022 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalScience of the Total Environment
Volume827
Early online date02 Mar 2022
DOIs
Publication statusPublished - 25 Jun 2022

Citation

Lam, T. W. L., Fok, L., Ma, A. T. H., Li, H.-X., Xu, X.-R., Cheung, L. T. O., & Wong, M. H. (2022). Microplastic contamination in marine-cultured fish from the Pearl River Estuary, South China. Science of The Total Environment, 827. Retrieved from https://doi.org/10.1016/j.scitotenv.2022.154281

Keywords

  • Microplastic ingestion
  • Mariculture
  • Farmed fish
  • Hybrid grouper
  • Pearl River Estuary

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