3cef63ee-9a44-481f-8869-ea9b977df747 English HELCOM Secretariat data@helcom.fi 2021-09-09T12:03:18 EPSG:3035 Submarine structures made by leaking gas 1180 (HOLAS 2) 2016-04-06 https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/3cef63ee-9a44-481f-8869-ea9b977df747 Submarine structures made by leaking gases (according to Habitats Directive Annex I) are also known as “bubbling reefs”. These formations support a zonation of diverse benthic communities consisting of algae and/or invertebrate specialists of hard marine substrates different to that of the surrounding habitat. The distribution map is based on data submission by HELCOM contracting parties. Only Sweden and Denmark reported occurrences of submarine structures made by leaking gases. HELCOM Secretariat data@helcom.fi Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme marine geology GEMET 2018-08-16 geonetwork.thesaurus.external.theme.gemet-en MADS HOLAS2 ecosystem component Biodiversity Use constraints: Data can be used freely given that the source is cited as "HELCOM HOLAS II Dataset: Natura 2000 habitats: Submarine structures made by leaking gas (1180) (2017)". Access constraints: No limitations on public access. English environment 7.530495 34.131647 52.277123 66.475422 2011-01-01 2016-12-31 TIFF https://maps.helcom.fi/website/MADS/download/?id=3cef63ee-9a44-481f-8869-ea9b977df747 WWW:LINK-1.0-http--link Download 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 Data source: Denmark: Polygon and point data on the distribution of submarine structures made by leaking gases. Source: Danish Nature Agency. Estonia: No reported submarine structures made by leaking gases. Finland: No reported submarine structures made by leaking gases. Germany: No reported submarine structures made by leaking gases. Latvia: No reported submarine structures made by leaking gases. Lithuania: No reported submarine structures made by leaking gases. Poland: No reported submarine structures made by leaking gases. Russia: Habitats Directive not implemented. Sweden: Polygon data of potential pockmarks based on bathymetric data. Source: Swedish Agency for Marine and Water Management (HaV) Data quality: Data quality and habitat definitions vary between countries. Data is often based on modelling and ground-truthing has not always taken place. The dataset was approved by all HELCOM Contracting Parties in the HOLAS II Ecosystem component data review process during first quarter of 2017 after corrections from Denmark. Attribute information: Raster value representing presence (1) or absence (0) of submarine structures made by leaking gas.