7acf146b-5d8d-48a6-9fb2-062eb2e5462e JNCC emodnetseabedhabitats@jncc.gov.uk 2026-03-11T09:46:05.5942724Z http://www.opengis.net/def/crs/EPSG/0/3857 Braemar Annex I Associated pockmark features GB001233 2023-08-07 7acf146b-5d8d-48a6-9fb2-062eb2e5462e This dataset includes the findings from the seabed survey of the Braemar Pockmarks and Scanner Pockmark Sites of Community Importance (SCI), as defined in the European Commission Habitats Directive 92/43/EEC. The pockmark features present within both of the SCIs are a series of crater-like depressions on the seafloor, and can include the Directives Annex I habitat Submarine structures made by leaking gases. These structures consist of large blocks, pavements, slabs and smaller fragments of carbonate rock, including methane-derived authigenic carbonate (MDAC). JNCC/CEFAS habitatmapping@jncc.gov.uk/data.manager@cefas.co.uk Oceanographic geographical features Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme habitat biotope GEMET - Concepts, version 4.1.3 2019-01-28 no limitations to public access Available under the Open Government Licence v3.0 50000 English biota oceans 1.416021 1.533665 58.957091 59.02217 2012-11-18 Esri Shapefile 1 GML 3.2.1 https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_view_maplibrary/wms OGC:WMS gb001233 View map "gb001233" through the EMODnet Seabed Habitats "Map Library" Web Map Service https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_open_maplibrary/wfs OGC:WFS gb001233 View map "gb001233" through the EMODnet Seabed Habitats "Map Library" Web Feature Service https://files.emodnet-seabedhabitats.eu/data/EMODnetSBHsurvey_GB001233.zip WWW:LINK-1.0-http--link EMODnet Seabed Habitats Static Download 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 data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true Full-coverage acoustic multibeam bathymetry and backscatter data were acquired during the survey. Areas of distinct acoustic signatures from multibeam data were delineated using the semi-automated eCognition software. Standard univariate and multivariate analyses on the taxa abundance data were performed to identify distinct faunal assemblages. Presence of the Annex I habitat Submarine structures made by leaking gases within the Braemar Pockmark SCI was suggested through observations of seabed structures on the video and still image data, and confirmed following laboratory analysis of carbonate samples (MDAC) collected in a number of grab samples. Sidescan sonar records also provided evidence of gas bubbles in the water column, which appeared to be venting from one of the pockmarks. The survey data was analysed and reported by Cefas, and the polygon dataset was then formatted by JNCC to meet the Data Exchange Format v4.1 required for EMODnet uploads in August 2023.