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Brain damage and behavioural disorders in fish induced by plastic nanoparticles delivered through the food chain

Author:
  • Karin Mattsson
  • Elyse V. Johnson
  • Anders Malmendal
  • Sara Linse
  • Lars Anders Hansson
  • Tommy Cedervall
Publishing year: 2017-12-01
Language: English
Publication/Series: Scientific Reports
Volume: 7
Issue: 1
Document type: Journal article
Publisher: Nature Publishing Group

Abstract english

The tremendous increases in production of plastic materials has led to an accumulation of plastic pollution worldwide. Many studies have addressed the physical effects of large-sized plastics on organisms, whereas few have focused on plastic nanoparticles, despite their distinct chemical, physical and mechanical properties. Hence our understanding of their effects on ecosystem function, behaviour and metabolism of organisms remains elusive. Here we demonstrate that plastic nanoparticles reduce survival of aquatic zooplankton and penetrate the blood-to-brain barrier in fish and cause behavioural disorders. Hence, for the first time, we uncover direct interactions between plastic nanoparticles and brain tissue, which is the likely mechanism behind the observed behavioural disorders in the top consumer. In a broader perspective, our findings demonstrate that plastic nanoparticles are transferred up through a food chain, enter the brain of the top consumer and affect its behaviour, thereby severely disrupting the function of natural ecosystems.

Keywords

  • Behavioral Sciences Biology
  • Environmental Sciences

Other

Published
  • ISSN: 2045-2322
Lars-Anders Hansson
E-mail: lars-anders [dot] hansson [at] biol [dot] lu [dot] se

Professor

Aquatic ecology

+46 46 222 41 69

E-C140

50

Professor

NanoLund

14

Research group

Aquatic Ecology

Other projects I´m involved in

Doctoral students and postdocs

PhD students, main supervisor

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