4f4c4942-4343-5764-6473-313232343533 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-03-03T12:00:42.848Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Environment (Wales) Act Section 7 and OSPAR: Marine Habitats Environment (Wales) Act Section 7 and OSPAR: Marine Habitats Deddf yr Amgylchedd (Cymru) Adran 7 ac OSPAR: Cynefinoedd Morol Deddf yr Amgylchedd (Cymru) Adran 7 ac OSPAR: Cynefinoedd Morol 2025-11-28 NRW_DS122453 Under the Environment (Wales) Act (2016), Section 7 requires biodiversity lists to be produced. These lists include types of habitats which are of 'Principal Importance' for the purpose of maintain and enhancing biodiversity in relation to Wales. This list supersedes the duty in Section 42 of the NERC Act 2006. In addition to this marine habitats can be protected under the OSPAR Convention, which has established a list of 'threatened and/or declining species and habitats' in the North-East Atlantic. This spatial dataset details the extent and location of those marine habitats classed of 'Principal Importance' under Section 7 and are regarded as 'threatened or declining' under OSPAR in Wales. Habitats include: Carbonate Reefs, Estuarine Rock, Honeycomb Worm Sabellaria alveolata, Intertidal Underboulder, Mud habitats in deep water, Musculus Discors Green crenella Beds, Blue Mussel Beds (listed under OSPAR aswell), Fragile Sponge and Anthozoans (listed under OSPAR aswell), Horse Mussel Modiolus Bed (listed under OSPAR aswell), Intertidal Mudflats (listed under OSPAR aswell), Maerl Beds live and dead (listed under OSPAR aswell), Sabellaria spinulosa reef (listed under OSPAR aswell), Saline Lagoons (listed under OSPAR aswell), Saltmarsh, Seagrass Beds (listed under OSPAR aswell), Seapens And Burrowing Megafauna (listed under OSPAR aswell), Peat Clay Exposures (listed under OSPAR aswell), Sheltered Muddy Gravel (listed under OSPAR aswell), Subtidal Mix Mud Sediments (listed under OSPAR aswell), Tide Swept Channels (listed under OSPAR aswell), Oyster Beds (OSPAR only). Under the Environment (Wales) Act (2016), Section 7 requires biodiversity lists to be produced. These lists include types of habitats which are of 'Principal Importance' for the purpose of maintain and enhancing biodiversity in relation to Wales. This list supersedes the duty in Section 42 of the NERC Act 2006. In addition to this marine habitats can be protected under the OSPAR Convention, which has established a list of 'threatened and/or declining species and habitats' in the North-East Atlantic. This spatial dataset details the extent and location of those marine habitats classed of 'Principal Importance' under Section 7 and are regarded as 'threatened or declining' under OSPAR in Wales. Habitats include: Carbonate Reefs, Estuarine Rock, Honeycomb Worm Sabellaria alveolata, Intertidal Underboulder, Mud habitats in deep water, Musculus Discors Green crenella Beds, Blue Mussel Beds (listed under OSPAR aswell), Fragile Sponge and Anthozoans (listed under OSPAR aswell), Horse Mussel Modiolus Bed (listed under OSPAR aswell), Intertidal Mudflats (listed under OSPAR aswell), Maerl Beds live and dead (listed under OSPAR aswell), Sabellaria spinulosa reef (listed under OSPAR aswell), Saline Lagoons (listed under OSPAR aswell), Saltmarsh, Seagrass Beds (listed under OSPAR aswell), Seapens And Burrowing Megafauna (listed under OSPAR aswell), Peat Clay Exposures (listed under OSPAR aswell), Sheltered Muddy Gravel (listed under OSPAR aswell), Subtidal Mix Mud Sediments (listed under OSPAR aswell), Tide Swept Channels (listed under OSPAR aswell), Oyster Beds (OSPAR only). O dan Ddeddf yr Amgylchedd (Cymru) (2016), mae Adran 7 yn ei gwneud yn ofynnol i restrau bioamrywiaeth gael eu cynhyrchu. Mae'r rhestrau hyn yn cynnwys mathau o gynefinoedd sydd yn "Bwysig Iawn" at ddiben cynnal a gwella bioamrywiaeth mewn perthynas â Chymru. Mae'r rhestr hon yn disodli'r ddyletswydd yn Adran 42 o Deddf yr Amgylchedd Naturiol a Chymunedau Gwledig 2006. Yn ogystal â hyn, gellir gwarchod cynefinoedd morol o dan Gonfensiwn OSPAR, sydd wedi sefydlu rhestr o "rywogaethau a chynefinoedd dan fygythiad a/neu sy'n dirywio" yng Ngogledd-ddwyrain yr Iwerydd. Mae’r set ddata ofodol hon yn manylu ar helaethrwydd a lleoliad y cynefinoedd morol hynny sydd wedi’u dosbarthu fel “Pwysig Iawn” o dan Adran 7 ac sy’n cael eu hystyried yn rhai “dan fygythiad neu’n dirywio” o dan OSPAR yng Nghymru. Ymhlith y cynefinoedd mae: Creigresi Carbonad, Creigiau Morydol, Mwydyn Crwybr Sabellaria alveolata, Clogfeini Rhynglanwol, Cynefinoedd mwd mewn dyfroedd dyfnion, Gwelyau Misglod Gwyrddion Musculus Discors, Gwelyau Cregyn Gleision (a restrir o dan OSPAR hefyd), Sbwng Bregus ac Anthosoaid (a restrir o dan OSPAR hefyd), Gwely Marchfisglod Modiolus (a restrir o dan OSPAR hefyd), Fflatiau Llaid Rhynglanwol (a restrir o dan OSPAR hefyd), Gwelyau Maerl byw a marw (a restrir o dan OSPAR hefyd), riff Sabellaria spinulosa (a restrir o dan OSPAR hefyd), Lagwnau Heli (a restrir o dan OSPAR hefyd), Morfa Heli, Gwelyau Morwellt (a restrir o dan OSPAR hefyd), Megaffawna Seapens a Thyrchu (a restrir o dan OSPAR hefyd), Datguddiadau Clai Mawn (a restrir o dan OSPAR hefyd), Graean Mwdlyd Cysgodol (a restrir o dan OSPAR hefyd), Gwaddodion Mwd Cymysgedd Islanwol (a restrir o dan OSPAR hefyd), Sianelau wedi’u Hysgubo gan y Llanw (a restrir o dan OSPAR hefyd), Gwelyau Wystrys (OSPAR yn unig). Datganiad priodoli Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a Hawl Cronfa Ddata. Cedwir pob hawl. Yn cynnwys data Arolwg Ordnans. Rhif Trwydded Arolwg Ordnans AC0000849444. Hawlfraint y Goron a Hawl Cronfa Ddata. Yn deillio'n rhannol o ddata a ddarparwyd o dan drwydded gan Arolwg Daearegol Prydain © NERC Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Convention for the Protection of the Marine Environment of the North East Atlantic, Oslo and Paris Conventions (OSPAR) marine habitat Biodiversity Action Plan (BAP) marine environment (marine habitats) (seas) (oceans) (maritime environment) Section 7 OSPAR NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat characterisation Habitat extent SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml Part of this dataset is sensitive and restricted as it contains data exempt from general release under EIR. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties. no limitations © CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right. Derived in part from data provided under licence by the British Geological Survey © NERC The non restricted (published) data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Sensitive data may be re-used under provision and in line with the terms of a NRW licence and NRWs guidance on Ecological data exempt from general release and may be requested. Sensitive data can be requested and may be provided under licence. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right. Derived in part from data provided under licence by the British Geological Survey © NERC Open Government Licence English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer Irish Sea Wales (WLS) -6.918448 -1.986869 50.946732 53.985471 2008-01-01 Geographic Information System ESRI Feature Class https://datamap.gov.wales/layergroups/inspire-nrw:MarineBAPOSPARHabitats WWW:LINK-1.0-http--link View and Download Data https://datamap.gov.wales/capabilities/layergroup/884/?ows_service=wms OGC:WMS Web Mapping Service 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 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false The data was collated from a wide range of sources, including but not limited to Marine Recorder, Phase 1 Intertidal, HabMap and Marine Monitoring Data. Habitats layers were produced as both polygon and point data for many of the habitats (where both types of data exist – some layers only have point data). Each layer is accompanied by processing notes detailing data sources and all decision made in creating the layers. A standard template was also produced and documented for attributing the GIS layers and general assumptions that could be made. Data layers within this dataset are updated at different times, usually as and when new data is available and collated. The data was collated from a wide range of sources, including but not limited to Marine Recorder, Phase 1 Intertidal, HabMap and Marine Monitoring Data. Habitats layers were produced as both polygon and point data for many of the habitats (where both types of data exist – some layers only have point data). Each layer is accompanied by processing notes detailing data sources and all decision made in creating the layers. A standard template was also produced and documented for attributing the GIS layers and general assumptions that could be made. Data layers within this dataset are updated at different times, usually as and when new data is available and collated.