4f4c4942-4343-5764-6473-313132343038 English NRW_DS111816 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-03-03T12:27:49.263Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) 2010 Countryside Council for Wales, Species Diversity Layer (Neighbourhood Analysis) 2010 Countryside Council for Wales, Species Diversity Layer (Neighbourhood Analysis) Cyngor Cefn Gwlad Cymru 2010, Haen amrywiaeth rhywogaethau (dadansoddiad o gymdogaeth) whole_region_neighbourhood_species 2010-03-31 NRW_DS112408 This layer was produced for Countryside Council for Wales (CCW) as part of the 'Identifying Marine Biodiversity Hotspots in Wales' project. Species diversity in the range is measured using species richness, average taxonomic distinctness and number of Welsh Nationally Important Marine Features metrics. Data were queried and analysed using a neighbourhood approach that analyses data from the adjacent six hexagons together with the central one. A hexagonal grid with a resolution of 10 km is utilised to present these metrics. The purpose of this data capture was to establish diversity from known data around the Welsh coastline, between the mean high-water mark up to 12 nautical miles offshore. An assessment of the suitability of data was carried out, taking into account the source of the data, its age, spatial, taxonomic and methodological accuracy. Data were also graded on survey quality using the following three categories with respect to field surveyors: professional and academic; volunteer with expert ID; and volunteer. Derived confidence ratings were recorded in the metadata and low quality data were flagged and removed from subsequent analyses. This layer was produced for Countryside Council for Wales (CCW) as part of the 'Identifying Marine Biodiversity Hotspots in Wales' project. Species diversity in the range is measured using species richness, average taxonomic distinctness and number of Welsh Nationally Important Marine Features metrics. Data were queried and analysed using a neighbourhood approach that analyses data from the adjacent six hexagons together with the central one. A hexagonal grid with a resolution of 10 km is utilised to present these metrics. The purpose of this data capture was to establish diversity from known data around the Welsh coastline, between the mean high-water mark up to 12 nautical miles offshore. An assessment of the suitability of data was carried out, taking into account the source of the data, its age, spatial, taxonomic and methodological accuracy. Data were also graded on survey quality using the following three categories with respect to field surveyors: professional and academic; volunteer with expert ID; and volunteer. Derived confidence ratings were recorded in the metadata and low quality data were flagged and removed from subsequent analyses. 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 Countryside Council for Wales (CCW) Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Joint Nature Conservation Committee (JNCC) Monkstone House, City Road, Peterborough, PE1 1JY, England comment@jncc.gov.uk http://www.jncc.gov.uk/ Marine Life Information Network (MarLIN) The Marine Biological Association of the UK, Citadel Hill, Plymouth, Devon, PL1 2PB Not available http://www.marlin.ac.uk/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme marine (maritime) marine conservation (see also specific geographical areas or sites eg Skomer-marine protected areas,marine nature reserves) marine species species (see also endangered species) diversity geographical information systems (GIS) NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Macroalgae and seagrass taxonomy-related counts Zoobenthos taxonomic abundance SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml biodiversity Integrated Public Sector Vocabulary 2013-04-03 geonetwork.thesaurus.external.theme.subjects NRW SMNR Vocabulary 2023-12-27 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 2010. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source. English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer Wales (WLS) -5.995534 -2.377414 51.160228 53.635782 1968-01-01 2008-12-31 Mapping marine benthic biodiversity in Wales Geographic Information System MapInfo layers 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 Species information was collated from CCW and the National Biodiversity Network (NBN) Gateway (Marine Recorder Snapshot from the Joint Nature Conservation Committee, JNCC). MarLIN databases and any additional data holdings within the Data Archive for Seabed Species and Habitats data (DASSH) were also used. Distinct survey data were imported into a geodatabase. The full species list was matched against the World Register of Marine Species (WoRMS) and any unrecognised species corrected. The final list was matched against an edited list of candidate Nationally Important Marine Features (NIMF) to identify those recorded in Wales. An assessment of the suitability of these data for biodiversity assessment was carried out taking into account the source of the data, its age, spatial, taxonomic and methodological accuracy and quality using criteria set out in the ISO 19115 standard for geospatial metadata. A hexagonal grid was used because they offer the best alignment to complex features, such as the Welsh coastline. The optimal size was determined 10km2 for the region. Metrics used to represent marine biodiversity in Wales were species richness, average taxonomic distinctness and the number of priority features. Each measure was calculated for each broad sampling method type, re-combined by hexagon, and presented as a separate layer on a continuous scale. Data were queried and analysed using a neighbourhood approach (analyzing data from the adjacent six hexagons together with the central one) to identify differences (from that of a non-neighbourhood analysis) that may be due to very localized features or the alignment of the grid itself. Species information was collated from CCW and the National Biodiversity Network (NBN) Gateway (Marine Recorder Snapshot from the Joint Nature Conservation Committee, JNCC). MarLIN databases and any additional data holdings within the Data Archive for Seabed Species and Habitats data (DASSH) were also used. Distinct survey data were imported into a geodatabase. The full species list was matched against the World Register of Marine Species (WoRMS) and any unrecognised species corrected. The final list was matched against an edited list of candidate Nationally Important Marine Features (NIMF) to identify those recorded in Wales. An assessment of the suitability of these data for biodiversity assessment was carried out taking into account the source of the data, its age, spatial, taxonomic and methodological accuracy and quality using criteria set out in the ISO 19115 standard for geospatial metadata. A hexagonal grid was used because they offer the best alignment to complex features, such as the Welsh coastline. The optimal size was determined 10km2 for the region. Metrics used to represent marine biodiversity in Wales were species richness, average taxonomic distinctness and the number of priority features. Each measure was calculated for each broad sampling method type, re-combined by hexagon, and presented as a separate layer on a continuous scale. Data were queried and analysed using a neighbourhood approach (analyzing data from the adjacent six hexagons together with the central one) to identify differences (from that of a non-neighbourhood analysis) that may be due to very localized features or the alignment of the grid itself.