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Annex I Reefs in UK waters (Open Data) (Version 8.3, 2022) 2021

Marine Seabed Habitats and Geology Habitats Directive - Annex I Identification of Annex 1 Reef and subtypes


This dataset contains all geospatial data that show the potential and high confidence mapped extents of Annex I habitat 'Reef' in UK waters, including any additional areas that should be considered reef for management purposes. Annex I reefs occur where rocky areas or concretions made by marine animals arise from the surrounding seafloor.

Version 8.1 of the dataset was produced by removing a single map (GB000980) from the previous version (2019 V8). Version 8.2 of the dataset was produced by correcting polygon errors in Rockall Reef from the previous version (2021 V8.1). Version 8.3 of the dataset was produced by updating data availability restrictions, addressing overlapping polygons in the Shetland Islands, removing specific points following updated advice and correcting a GUI following updated advice from the previous version (2021 V8.2).

Areas of protected reef can be viewed on the JNCC MPA Mapper:

Additional information source:

Resource type Dataset

Topic category Biota

Reference date 2021·07·09

Data sources include databases provided the CNCBs, new survey and modelled data, and derivatives from composite datasets.

Responsible organisation
Digital and Data Solutions, JNCC custodian

Limitations on public access No limitations

Use constraints Available under the Open Government Licence v3. Attribution statement "Contains JNCC data © copyright and database right 2021"

Metadata date 2022·02·14

Metadata point of contact
Digital and Data Solutions, JNCC

Temporal extent 1968·01·01 2018·12·31

Spatial extent
North 62.214104
South 48.264071
East 2.499864
West -22.895854
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