Research and analysis

Data for Theme C: Seas and Estuaries

Data for 'Theme C: Seas and Estuaries' indicators of the Environmental Indicator Framework.

• From: Department for Environment, Food & Rural Affairs
• Published: 1 December 2025

Documents

C1a: Items of litter per 100m of beach, England, 2017 to 2022

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C1b: Percentage of sampled fulmars having more than 0.1 g of plastic in their stomach, Greater North Sea, 2004-2008 to 2019-2023

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C1c: Mean probability that benthic trawl surveys contain a litter item, expressed as a percentage, Greater North Sea and Celtic Seas, 2012 to 2019

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C2i: Predicted area of seabed in the UK Continental Shelf exposed to disturbance from bottom contact fishing by vessels over 12m long and regional progress towards Good Environmental Status (GES) 2010 to 2015

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C2ii: Predicted area of seabed in the UK Continental Shelf exposed to disturbance from bottom contact fishing vessels over 12m long, 2010 to 2015

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C3bi: Change in the annual proportion of marine bird species achieving relative breeding abundance targets, Greater North Sea and Celtic Seas, 1996 to 2019

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C3bii: Change in the annual proportion of marine bird species achieving relative non-breeding abundance targets, Greater North Sea and Celtic Seas, 1996 to 2020

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C4: Summary of regional sea assessment results for coastal and offshore habitats, 2010 to 2015

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C4i: Regional sea assessments, and the status of coastal water bodies for seagrass, 2010 to 2015

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C4ii: Regional sea assessments, and the status of coastal water bodies for rocky shore macroalgae, 2010 to 2015

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C4iii: Regional sea assessments, and the status of coastal water bodies for saltmarsh, 2010 to 2015

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C4iv: Regional sea assessments, and the status of coastal water bodies and offshore units for soft sediment invertebrates, 2010 to 2015

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C5a: Changes in phytoplankton and zooplankton communities: proportion of lifeforms consistent with Good Environmental Status, Greater North Sea and Celtic Seas, 1960 to 2019

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C5b: Changes in phytoplankton biomass and zooplankton abundance: number of broad habitat types consistent with Good Environmental Status 1960 to 2019

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C6a: Status of UK relevant OSPAR threatened and/or declining species and habitats across OSPAR Region II (Greater North Sea) and III (Celtic Seas), 2019 to 2023

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C6b: Status of Habitats Directive Article 17 listed coastal and marine features in the UK, 2019

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C7a: Long-term changes in the typical length of demersal fish communities in UK waters and surrounding areas, 1983 to 2020

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C7b: Long-term changes in the mean maximum length of demersal fish communities in UK waters and surrounding areas, 1983 to 2020

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C10a: Marine fish (quota) stocks of UK interest harvested sustainably, 1990 to 2020

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C10b: Marine fish (quota) stocks of UK interest with biomass at levels capable of maintaining full reproductive capacity, 1990 to 2020

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C11: Long-term and short-term changes in the occurrence of sensitive fish species, Greater North Sea and Celtic Seas, 1983 to 2020

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Details

This document contains data corresponding to the ‘Theme C: Seas and Estuaries’ indicators of the Environmental Indicator Framework.

Published 1 December 2025