Cited by 977Microplastics and Plastic PollutionMarine and coastal ecosystemsPharmaceutical and Antibiotic Environmental Impacts

Ups and Downs in the Ocean: Effects of Biofouling on Vertical Transport of Microplastics

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Kooi, Merel, Nes, Egbert H. van, Scheffer, Marten, Koelmans, Albert A.·2017·Environmental Science & Technology

Abstract

Recent studies suggest size-selective removal of small plastic particles from the ocean surface, an observation that remains unexplained. We studied one of the hypotheses regarding this size-selective removal: the formation of a biofilm on the microplastics (biofouling). We developed the first theoretical model that is capable of simulating the effect of biofouling on the fate of microplastic. The model is based on settling, biofilm growth, and ocean depth profiles for light, water density, temperature, salinity, and viscosity. Using realistic parameters, the model simulates the vertical transport of small microplastic particles over time, and predicts that the particles either float, sink to the ocean floor, or oscillate vertically, depending on the size and density of the particle. The predicted size-dependent vertical movement of microplastic particles results in a maximum concentration at intermediate depths. Consequently, relatively low abundances of small particles are predicted at the ocean surface, while at the same time these small particles may never reach the ocean floor. Our results hint at the fate of “lost” plastic in the ocean, and provide a start for predicting risks of exposure to microplastics for potentially vulnerable species living at these depths.

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  • Kooi et al. used modeling to demonstrate that plastics might oscillate within the upper 100 m of the water column due to (de)fouling and presented a theoretical model for size-selective removal of small particles from the ocean surface.

    “Kooi et al. 86 used modeling to demonstrate that plastics might oscillate within the upper 100 m of the water column due to (de)fouling and presented a theoretical model for size-selective removal of small particles from the ocean surface.”
  • There is a lack of evidence for significant plastic debris in sediment traps from the North Atlantic gyre.

    “the lack of evidence for significant plastic debris in sediment traps from the North Atlantic gyre [54]”

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  1. Eppley R. W. Temperature and phytoplankton growth in the sea. Fish. Bull. 1972, 70 (4), 1063– 1085.
  2. Hill A. V. The possible effects of the aggregation of the molecules of haemoglobin on its dissociation curves. J. Physiol 1910, 40, 4– 7.
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  4. Zweng M. M.; Reagan J. R.; Antonov J. I.; Locarnini R. A.; Mishonov A. V.; Boyer T. P.; Garcia H. E.; Baranova O. K.; Johnson D. R.; Seidov D.; et al. World Ocean Atlas 2013. Vol. 2: Salinity. NOAA Atlas NESDIS 2013, 74, 39.
  5. Strogatz S. H. Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, And Engineering; Westview Press, 2014.

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Authors
Kooi, M., Nes, E. H. V., Scheffer, M., & Koelmans, A. A.
Affiliations
  • Wageningen University & Research (NL)
  • Wageningen Marine Research (NL)
Corresponding author
Kooi, Merel
Venue
Environmental Science & Technology
Published
2017-06-14
Volume
51
Issue
14
Pages
7963-7971
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2626018688
Cited by
977
References
69
Citations by year
2026: 131 · 2025: 123 · 2024: 129 · 2023: 121 · 2022: 148 · 2021: 133 · 2020: 101 · 2019: 52 · 2018: 33 · 2017: 6
FWCI
23.64
Type
journal article
Language
en
Open access
Locations
  • Environmental Science & Technology (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion, cc-by-nc-nd)
  • Data Archiving and Networked Services (DANS) (submittedVersion, cc-by-nc-nd)
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
Keywords
microplastics, biofouling, biofilm formation, vertical transport, sea surface, particle settling, particle buoyancy, microplastic fate, theoretical model, marine plastic pollution
MeSH terms
Environmental Monitoring, Oceans and Seas, Plastics, Water Pollutants, Chemical, Biofouling

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