fdd571ff-375a-44d7-91d3-559cf1a3d382 eng b340f9ec-527a-4d05-a68b-aac99cd14c74 Mickaël Vasquez Ifremer mickael.vasquez@ifremer.fr 2026-03-11T09:23:39.282329Z ISO 19115:2003/19139 1.0 WGS 1984 Biological zones of the Adriatic Sea - Scale 1:1,000,000 2014-10-10T08:00:00 v1 This layer is a model of the biological zones of the Adriatic Sea. It was performed within the framework of EMODnet Phase 2 Thematic Lot n° 3 (aka EUSeaMap2). It is a preliminary version which will be refined during the course of the project. This layer was modelled with the use of base layers that were the seabed substrate type (obtained from EMODnet phase 2 Geology lot, June 2014 release), the bathymetry (EMODnet phase 1 Hydrography lot) and the kdpar (bespoke computed layer) The biological zones boundaries were defined in the following way. - Infralittoral lower limit: limit at which the percentage of light reaching the seabed is 1%. The percentage of light layer was calculated by intersecting the kdpar and the bathymetry layers. For more details about this calculation see e.g. Cameron and Askew (2011). - Circalittoral lower limit: break of slope due to the entrance into the continental slope. This limit was digitalized with the use of the bathymetry layer - Bathyal lower limit: break of slope due to the entrance into the abyssal plain. This limit was digitalized with the use of the bathymetry layer In a western area for which the seabed substrated type is influenced by the Pô river, different rules were used for the definition infralittoral and circalittoral zones. Where the substrate is muddy (i.e. mud or sandy mud) and/or the seabed is deeper than 20 meters then the biological zone was said to be circalittoral. Elsewhere it was defined as infralittoral. For more details about the current layer see EUSeaMap first year report (EMODnet Thematic Lot n° 3, 2014) Cameron, A., Askew, N. (eds.), 2011. EUSeaMap - Preparatory Action for development and assessment of a European broad-scale seabed habitat map final report. URL: http://jncc.gov.uk/euseamap EMODnet Thematic Lot n° 3, 2014. EMODnet Phase 2 - Annual (interim) report. Reporting Period: Sept. 2013 to Aug. 2014. URL: http://www.emodnet-seabedhabitats.eu/pdf/20140909_euseamap2_year1_report.pdf Marine spatial planning Marine protected areas design Mickaël VASQUEZ Ifremer mickael.vasquez@ifremer.fr https://gis.ices.dk:/geonetwork/srv/api/records/fdd571ff-375a-44d7-91d3-559cf1a3d382/attachments/adriatic90_biozones_new.png biological zones Etage Infralittoral Circalittoral Bathyal Abyssal Adriatic Marine habitat mapping Habitats and biotopes Oceanographic geographical features Bio-geographical regions Hydrography GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced has to be cited this way in other maps: "Source EMODnet" 1000000 eng environment 2014-10-16T04:00:00 2014-10-16T04:00:00 10.8984375 20.21484375 39.30908203125 46.51611328125 0 6000 Esri Shapefile unknown http://www.emodnet-seabedhabitats.eu/default.aspx?page=1934 WWW:LINK-1.0-http--link http://gis.ices.dk/geonetwork/srv/en/resources.get?id=594&fname=&access=private WWW:DOWNLOAD-1.0-http--download OGC:WMS-1.1.1-http-get-map Biological zones of the Adriatic Sea 2014-10-15 Calculation false