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Portrait of Sara Snogerup Linse

Sara Linse

Professor

Portrait of Sara Snogerup Linse

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

Summary, in 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.

Department/s

  • Biochemistry and Structural Biology
  • NanoLund: Center for Nanoscience
  • Division aquatic ecology
  • BECC: Biodiversity and Ecosystem services in a Changing Climate
  • Aquatic Ecology

Publishing year

2017-12-01

Language

English

Publication/Series

Scientific Reports

Volume

7

Issue

1

Document type

Journal article

Publisher

Nature Publishing Group

Topic

  • Behavioral Sciences Biology
  • Environmental Sciences

Status

Published

Research group

  • Aquatic Ecology

ISBN/ISSN/Other

  • ISSN: 2045-2322