Cited by 346Microplastics and Plastic PollutionEnvironmental Toxicology and EcotoxicologyMarine Ecology and Invasive Species

Experimental Evaluation of Seaweeds as a Vector for Microplastics into Marine Food Webs

Gutow, Lars, Eckerlebe, Antonia, Giménez, Luis, Saborowski, Reinhard·2016·Environmental Science & Technology

Abstract

The ingestion of microplastics has been shown for a great variety of marine organisms. However, benthic marine mesoherbivores such as the common periwinkle Littorina littorea have been largely disregarded in studies about the effects of microplastics on the marine biota, probably because the pathway for microplastics to this functional group of organisms was not obvious. In laboratory experiments we showed that the seaweed Fucus vesiculosus retains suspended microplastics on its surface. The numbers of microplastics that adhered to the algae correlated with the concentrations of suspended particles in the water. In choice feeding assays L. littorea did not distinguish between algae with adherent microplastics and clean algae without microplastics, indicating that the snails do not recognize solid nonfood particles in the submillimeter size range as deleterious. In periwinkles that were feeding on contaminated algae, microplastics were found in the stomach and in the gut. However, no microplastics were found in the midgut gland, which is the principle digestive organ of gastropods. Microplastics in the fecal pellets of the periwinkles indicate that the particles do not accumulate rapidly inside the animals but are mostly released with the feces. Our results provide the first evidence that seaweeds may represent an efficient pathway for microplastics from the water to marine benthic herbivores.

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Crossref · 10.1021/acs.est.5b02431

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Authors
Gutow, L., Eckerlebe, A., Giménez, L., & Saborowski, R.
Affiliations
  • Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (DE)
  • Bangor University (GB)
Corresponding author
Saborowski, Reinhard
Venue
Environmental Science & Technology
Published
2015-12-24
Volume
50
Issue
2
Pages
915-923
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2237791566
Cited by
346
References
61
Citations by year
2026: 20 · 2025: 31 · 2024: 54 · 2023: 54 · 2022: 46 · 2021: 41 · 2020: 44 · 2019: 27 · 2018: 17 · 2017: 9 · 2016: 3
FWCI
6.00
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
  • Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion)
  • Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut) (submittedVersion)
Funders
Helmholtz Association
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 › Global and Planetary Change › Marine Ecology and Invasive Species
Keywords
microplastics, seaweed, Fucus vesiculosus, Littorina littorea, periwinkle, marine food webs, microplastic ingestion, choice feeding, hepatopancreas, fecal pellets
MeSH terms
Animals, Digestive System, Feces, Oceans and Seas, Plastics, Seaweed, Snails, Food Chain, Biota, Herbivory

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