Cited by 108Microplastics and Plastic PollutionEnvironmental Toxicology and EcotoxicologyPharmaceutical and Antibiotic Environmental Impacts

A Bayesian analysis of the factors determining microplastics ingestion in fishes

Covernton, Garth A., Davies, Hailey L., Cox, Kieran D., El-Sabaawi, Rana, Juanes, Francis, Dudas, Sarah E., Dower, John F.·2021·Journal of Hazardous Materials

Abstract

Microplastic particles (MPs) occur widely in aquatic ecosystems and are ingested by a wide range of organisms. While trophic transfer of MPs is known to occur, researchers do not yet fully understand the fate of MPs in food webs. We explored the factors influencing reported ingestion of MPs in marine and freshwater fishes by conducting a literature review of 123 studies published between January 2011 and June 2020. We used Bayesian generalized linear mixed models to determine whether MP ingestion by fishes varies by Food and Agricultural Organization fishing area, trophic level, body size, taxa, and study methodology. After accounting for methodology, strong regional differences were not present, although ingested MP concentrations were slightly different among some FAO areas. According to the reviewed studies, MP concentrations in fish digestive tracts did not increase with either trophic level or body size, suggesting that biomagnification of MPs did not occur, although larger fish were more likely to contain MPs. Researchers reported higher concentrations of MPs in clupeids compared with other commonly studied taxonomic families, which could be due to their planktivorous feeding strategy. Methodology played an influential role in predicting reported concentrations, highlighting the need to harmonize methods among studies.

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Crossref · 10.1016/j.jhazmat.2021.125405

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Authors
Covernton, G. A., Davies, H. L., Cox, K. D., El-Sabaawi, R., Juanes, F., Dudas, S. E., & Dower, J. F.
Affiliations
  • University of Victoria (CA)
  • Fisheries and Oceans Canada (CA)
Corresponding author
Covernton, Garth A.
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2021-07
Volume
413
Pages
125405
ISSN
0304-3894 (ISSN-L)
OpenAlex
W3131381981
Cited by
108
References
62
Citations by year
2026: 12 · 2025: 21 · 2024: 16 · 2023: 17 · 2022: 25 · 2021: 17
FWCI
4.65
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fisheries and Oceans Canada
  • University of Victoria
  • Natural Sciences and Engineering Research Council of Canada
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
Keywords
microplastics, microplastic ingestion, fish, marine fish, freshwater fish, trophic levels, body size, biomagnification, Clupeidae, planktivory, food webs
MeSH terms
Microplastics, Animals, Bayes Theorem, Eating, Environmental Monitoring, Fishes, Humans, Plastics, Water Pollutants, Chemical, Ecosystem

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