Below the surface: Twenty-five years of seafloor litter monitoring in coastal seas of North West Europe (1992–2017)

Thomas Maes, H.A. Leslie, Jon Barry, A.D. Vethaak, E.E.M. Nicolaus, R.J. Law, B.P. Lyons, R. Martinez, B. Harley, J.E. Thain

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Marine litter presents a global problem, with increasing quantities documented in recent decades. The distribution and abundance of marine litter on the seafloor off the United Kingdom's (UK) coasts were quantified during 39 independent scientific surveys conducted between 1992 and 2017. Widespread distribution of litter items, especially plastics, were found on the seabed of the North Sea, English Channel, Celtic Sea and Irish Sea. High variation in abundance of litter items, ranging from 0 to 1835 pieces km−2 of seafloor, was observed. Plastic tems such as bags, bottles and fishing related debris were commonly observed across all areas. Over the entire 25-year period (1992–2017), 63% of the 2461 trawls contained at least one plastic litter item. There was no significant temporal trend in the percentage of trawls containing any or total plastic litter items across the long-term datasets. Statistically significant trends, however, were observed in specific plastic litter categories only. These trends were all positive except for a negative trend in plastic bags in the Greater North Sea - suggesting that behavioural and legislative changes could reduce the problem of marine litter within decades.

Original languageEnglish
Pages (from-to)790-798
Number of pages9
JournalScience of the Total Environment
Volume630
Early online date27 Feb 2018
DOIs
Publication statusPublished - 15 Jul 2018

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seafloor
Plastics
Monitoring
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Bottles
Debris
Coastal zones
Europe
sea
fishing
trend
coast

Keywords

  • Fishing debris
  • Long term monitoring
  • Marine litter
  • Marine Strategy Framework Directive
  • Plastic bags
  • Plastic waste
  • Seafloor

Cite this

Maes, Thomas ; Leslie, H.A. ; Barry, Jon ; Vethaak, A.D. ; Nicolaus, E.E.M. ; Law, R.J. ; Lyons, B.P. ; Martinez, R. ; Harley, B. ; Thain, J.E. / Below the surface: Twenty-five years of seafloor litter monitoring in coastal seas of North West Europe (1992–2017). In: Science of the Total Environment. 2018 ; Vol. 630. pp. 790-798.
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Below the surface: Twenty-five years of seafloor litter monitoring in coastal seas of North West Europe (1992–2017). / Maes, Thomas; Leslie, H.A.; Barry, Jon ; Vethaak, A.D.; Nicolaus, E.E.M.; Law, R.J.; Lyons, B.P.; Martinez, R.; Harley, B.; Thain, J.E.

In: Science of the Total Environment, Vol. 630, 15.07.2018, p. 790-798.

Research output: Contribution to JournalArticleAcademicpeer-review

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