9fb336e4-7df6-4c1b-b3b7-e0f6eb747aa9 Product record EMODnet Chemistry sextant@ifremer.fr http://www.emodnet.eu/chemistry 2025-07-29T15:07:33.988223Z ISO 19115:2003/19139 - EMODNET - SDN 1.0 WGS 84 (EPSG:4326) EPSG Seafloor litter - Composition of litter according to material categories in percent per trawl 2007/2024 v2025 sl_materialcategories 2025-01-27T00:00:00+01:00 1.0 DOI:10.13120/9fb336e4-7df6-4c1b-b3b7-e0f6eb747aa9 This visualization product displays the marine litter material categories percentage per trawl. EMODnet Chemistry included the collection of marine litter in its 3rd phase. Since the beginning of 2018, data of seafloor litter collected by international fish-trawl surveys have been gathered and processed in the EMODnet Chemistry Marine Litter Database (MLDB). The harmonization of all the data has been the most challenging task considering the heterogeneity of the data sources, sampling protocols (OSPAR and MEDITS protocols) and reference lists used on a European scale. Moreover, within the same protocol, different gear types are deployed during bottom trawl surveys. Unlike other EMODnet seafloor litter products, all trawls surveyed since 2007 are included in this map even if the wingspread and/or the distance are/is unknown. Only surveys with an unknown number of items were excluded from this product. Harmonization of the material categories between ICES and MEDITS lists was performed and the following calculation was applied: Material % = (∑Number of items of each material category*100)/(∑Number of items of all material categories) More information on data processing and calculation are detailed in the attached document. Warning: the absence of data on the map does not necessarily mean that they do not exist, but that no information has been entered in the Marine Litter Database for this area. EMODnet Chemistry IFREMER / IDM / SISMER - Scientific Information Systems for the SEA +33 (0)2 98.22.49.16 +33 (0)2 98.22.46.44 IFREMER Centre de Bretagne ZI Pointe du diable CS 10070 PLOUZANE 29280 France sismer@ifremer.fr http://www.ifremer.fr/sismer/ web site Ifremer / VIGIES (Information Valuation Service for Integrated Management and Monitoring) +33 (02 40.37.40.00 +33 (0)2 40.37.40.01 Rue de l'Ile d'Yeu BP 1105 NANTES CEDEX 03 44311 France morgan.le.moigne@ifremer.fr https://wwz.ifremer.fr/Recherche-Technologie/Departements-scientifiques/Departement-Oceanographie-et-Dynamique-des-Ecosystemes/VIGIES web site National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography Borgo Grotta Gigante 42/c Sgonico (Trieste) 34010 Italy nodc@ogs.trieste.it http://www.ogs.trieste.it/ web site Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring) +33 (02 40.37.40.00 +33 (0)2 40.37.40.01 Rue de l'Ile d'Yeu BP 1105 NANTES CEDEX 03 44311 France morgan.le.moigne@ifremer.fr https://wwz.ifremer.fr/Recherche/Departements-scientifiques/Departement-Oceanographie-et-Dynamique-des-Ecosystemes/VIGIES web site IFREMER, SISMER, Scientific Information Systems for the SEA +33 (0)2 98.22.49.16 +33 (0)2 98.22.46.44 IFREMER Centre de Bretagne ZI Pointe du diable CS 10070 PLOUZANE 29280 France sismer@ifremer.fr http://data.ifremer.fr/SISMER web site Agriculture University of Tirana +355 698593227 Kodër Kamëz, SH1 Tirana 1029 Albania magdacara@ubt.edu.al http://www.ubt.edu.al web site ARPA Emilia-Romagna, Struttura Oceanografica Daphne Centro Ricerche Marine Viale Vespucci 2 Cesenatico 47042 Italy http://www.arpa.emr.it/Daphne/index.asp web site Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory +44 (0)1502 562244 Pakefield Road Lowestoft NR33 OHT United Kingdom datamanager@cefas.co.uk http://www.cefas.co.uk/ web site COISPA Tecnologia & Ricerca +39 080 543 3596 via dei Trulli 18-20 Bari 70126 Italy info@coispa.eu https://www.coispa.it/index.php?option=com_content&view=article&id=14:about-us&catid=11&lang=en&Itemid=124 web site DTU Aqua, National Institute of Aquatic Resources, Technical University of Denmark + 45 35 88 33 00 Kemitorvet Bygning 202 Kgs. 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Constanta Romania office@marenostrum.ro https://www.marenostrum.ro/ web site Portuguese Institute for Sea and Atmosphere, I.P. (IPMA, I.P.) Portugal Swedish University of Agricultural Sciences +46-(0)18-67 10 00 +46-(0)18-67 20 00 Arrheniusplan 4 Uppsala 750 07 Sweden registrator@slu.se https://www.slu.se/ web site Thünen-Institute of Baltic Sea Fisheries (TI-OF) +49-381 811 61-00 +49-381 811 61-99 Alter Hafen Süd 2 Rostock 18069 Germany of@ti.bund.de web site Thünen-Institute of Sea Fisheries +49 471 94460 101 +49 471 94460 199 Herwigstraße 31 Bremerhaven 27572 Germany wencke.griemsmann@thuenen.de https://www.thuenen.de/en/sf/ web site Wageningen Marine Research, IJmuiden +31 317480900 Haringkade 1 IJmuiden 1976 CP Netherlands https://www.wur.nl/nl/Onderzoek-Resultaten/Onderzoeksinstituten/marine-research.htm web site IEO-CSIC, Balearic Islands Oceanographic Centre +34 971 133 720 +34 971 404 945 Muelle de Poniente, s/n Apdo. 291 Palma de Mallorca (Baleares) 07015 Spain cob@ieo.csic.es http://www.ieo.es/baleares web site https://sextant.ifremer.fr/documentation/emodnet_chemistry/images/2025/sl_materialcategories.png /Human Activities/Pollution Thèmes Sextant 2023-03-16 geonetwork.thesaurus.local.theme.sextant-theme Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2018-07-27T14:39:48 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Litter abundance and type Sea-floor litter abundance Parameter Discovery Vocabulary (P02) 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P02 Black Sea Baltic Sea Arctic Ocean Northeast Atlantic Ocean (40W) North Sea Mediterranean Sea SeaVoX salt and fresh water body gazetteer 2021-04-07 geonetwork.thesaurus.external.reference-geographical-area.NVS.C19 EMODnet Chemistry sediment Matrix Categories 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.L04 Marine litter, including Plastics EMODnet Chemistry chemical groups 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P36 Data Mission Atlantic - Resources 2023-03-16 geonetwork.thesaurus.local.theme.mission-atlantic-resources Celtic Seas Mission Atlantic - Case Studies 2023-03-16 geonetwork.thesaurus.local.theme.mission-atlantic-case-studies WP4 Benthic Mapping Mission Atlantic - Work Package 2023-03-16 geonetwork.thesaurus.local.theme.mission-atlantic-work-package /Environment/Pollution Mission Atlantic - BODC Parameters 2023-03-16 geonetwork.thesaurus.local.theme.mission-atlantic-bodc-parameters Spatial data products Mission Atlantic - Data type (DMP) 2023-03-16 geonetwork.thesaurus.local.theme.mission-atlantic-data-type /Boulogne-sur-Mer/BOL02 /Boulogne-sur-Mer/BOL04 /Peniche/PEN01 /Boulogne-sur-Mer/BOL06 /La Rochelle/LAR01 /Kuala Lumpur/KUL08 /Concepción/CON06 /Bournemouth/BOR01 /Brest /Boulogne-sur-Mer /Toulon /Plymouth /Bournemouth /La Rochelle /Cherbourg Ocean Hackathon - City and challenge 2023-11-10 geonetwork.thesaurus.local.place.oh_ville CC BY 4.0: https://creativecommons.org/licenses/by/4.0/ Usage is subject to mandatory citation: "This resource was generated in the framework of EMODnet Chemistry, under the support of DG MARE Call for Tender EASME/EMFF/2020/3.1.11/European Marine Observation and Data Network (EMODnet) - Lot 5 - Chemistry" eng oceans bounding box -15.837 30.5653 35.0442 61.7763 2007-10-02 2024-03-21 -1332 -5 https://sextant.ifremer.fr/services/wms/emodnet_chemistry2 OGC:WMS sl_materialcategories Seabed Litter - Material categories percentage per year https://sextant.ifremer.fr/documentation/emodnet_chemistry/document/Field_description/SL_field_description_materialcategories.xlsx WWW:LINK Description of the layer's fields Description of the layer's fields https://sextant.ifremer.fr/sextant_data/EMODNET/CHEMISTRY/MARINE_LITTER/2025/sl_materialcategories.zip WWW:DOWNLOAD Direct Download Direct Download https://emodnet.ec.europa.eu/geoviewer/ WWW:LINK EMODnet Map Viewer EMODnet Map Viewer https://doi.org/10.13120/c622d045-94ed-4b6a-9c78-404e86b8b9a3.v1 WWW:LINK Visualization products for seafloor litter data Methodologies applied to create the maps https://dx.doi.org/10.6092/15c0d34c-a01a-4091-91ac-7c4f561ab508 WWW:LINK Guidelines and forms for gathering marine litter data Guidelines and forms for gathering marine litter data https://doi.org/10.13120/9fb336e4-7df6-4c1b-b3b7-e0f6eb747aa9 DOI Digital Object Identifier (DOI) Data Access and Citation 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 See the referenced specification The original datasets can be searched and downloaded from EMODnet Chemistry Chemistry CDI Data and Discovery Access Service: https://cdi-chemistry.seadatanet.org/search