c7aba887-aa93-4074-9ec4-c175677c655f English dataset JNCC marine international evidence and advice queries jncc marine.international@jncc.gov.uk pointOfContact 2026-11-04 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 2026 Joint Nature Conservation Committee (JNCC) Data results from the pilot assessment based on the indicator “Sentinels of the Seabed” in the Celtic Seas and Greater North Sea used in the UK Marine Strategy Part One 2026 update DASSHDT00000806 Data results obtained from the calculation of the “Sentinels of the Seabed” indicator. This indicator assesses the environmental status of a habitat using the proportional abundance of the sentinel species across pressure gradients. Sentinel species are taxa characteristic of a habitat in reference condition that are particularly sensitive to the pressure assessed. Species sensitivity to trawling was estimated using the BEnthic Sensitivity Index to Trawling Operations (BESITO). Changes in the proportion of sentinel species across a pressure gradient are used to calculate pressure-state curves for two main purposes: 1) identify tipping points and boundaries for habitat condition and 2) estimate habitat condition JNCC marine international evidence and advice queries jncc marine.international@jncc.gov.uk owner JNCC marine international evidence and advice queries jncc marine.international@jncc.gov.uk custodian JNCC marine international evidence and advice queries jncc marine.international@jncc.gov.uk originator JNCC marine international evidence and advice queries jncc marine.international@jncc.gov.uk distributor unknown Marine Environmental Data and Information Network MEDIN metadata record availability 2026-11-04 revision Habitats and biotopes Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Zoobenthos taxonomy-related counts SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Available under Open Government Licence v3.0: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ otherRestrictions Data created by JNCC as part of indicator analysis. No restrictions apply to public access or use of these data. When using or reproducing the data, users should cite the source using the full citation provided in the UK Marine Online Assessment Tool (MOAT): https://moat.cefas.co.uk/biodiversity-food-webs-and-marine-protected-areas/benthic-habitats/sentinels-of-the-seabed-pilot/ English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota oceans -9.400 3.070 48.800 59.100 SeaVox salt and freshwater body gazetteer 2021-01-06 creation Celtic Sea SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Sea 2012-01-01 2018-12-31 Database https://moat.cefas.co.uk/biodiversity-food-webs-and-marine-protected-areas/benthic-habitats/sentinels-of-the-seabed-pilot/ UKMS Part One 2026 Update - Pilot Assessment of Sentinels of the Seabed Assessment Report information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication not evaluated This dataset contains • assessment results: for each sample considered in the assessment is provided the associated pressure intensity value, the observed proportion of sentinel species, the habitat response type, the estimated habitat quality boundary and the habitat degradation level. • supplementary material: including 1) biological trait analysis and BESITO index sensitivity scores for the taxa considered in the assessment 2) pressure-state relationship curves from Generalised Linear Model, showing the relationship between the proportion of sentinel species and trawling pressure • R scripts used for the analyses