e6182b84-e753-4518-9ee6-17d5f28a3e29 Product record EMODnet Chemistry sextant@ifremer.fr http://www.emodnet.eu/chemistry 2025-07-29T15:07:28.837192Z ISO 19115:2003/19139 - EMODNET - SDN 1.0 WGS 84 (EPSG:4326) EPSG Micro litter - Size of litter per net - Other specific protocols 2011/2021 v2025 mlf_density_nb_by_size_other 2025-02-07T00:00:00+01:00 1.0 DOI:10.13120/e6182b84-e753-4518-9ee6-17d5f28a3e29 This visualization product displays the size of litter in percent per net per year from specific protocols different from research and monitoring protocols. EMODnet Chemistry included the collection of marine litter in its 3rd phase. Before 2021, there was no coordinated effort at the regional or European scale for micro-litter. Given this situation, EMODnet Chemistry proposed to adopt the data gathering and data management approach as generally applied for marine data, i.e., populating metadata and data in the CDI Data Discovery and Access service using dedicated SeaDataNet data transport formats. EMODnet Chemistry is currently the official EU collector of micro-litter data from Marine Strategy Framework Directive (MSFD) National Monitoring activities (descriptor 10). A series of specific standard vocabularies or standard terms related to micro-litter have been added to SeaDataNet NVS (NERC Vocabulary Server) Common Vocabularies to describe the micro-litter. European micro-litter data are collected by the National Oceanographic Data Centres (NODCs). Micro-litter map products are generated from NODCs data after a test of the aggregated collection including data and data format checks and data harmonization. A filter is applied to represent only micro-litter sampled according to a very specific protocol such as the Volvo Ocean Race (VOR) or Oceaneye. To calculate percentages for each size, formula applied is: Size (%) = (∑number of particles of each size)*100 / (∑number of particles of all size) When the number of micro-litters was not filled or was equal to zero, it was not possible to calculate the percentage. Standard vocabularies for micro-litter size classes are taken from Seadatanet's H03 library (https://vocab.seadatanet.org/v_bodc_vocab_v2/search.asp?lib=H03 ). Different protocols with different degrees of precision were used to classify the sampled micro-litters. Consequently, on the map, the distribution of micro-litter in the size classes depends on the protocol applied during the survey. 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 National Oceanographic Data Centre (NODC) 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 Association Oceaneye +41786371673 rue Royaume 10 Genève 1201 Switzerland info@oceaneye.ch https://www.oceaneye.ch/ web site Helmholtz Centre for Ocean Research Kiel +49 431 600-0 +49 431 600-2805 Düsternbrooker Weg 20 Kiel 24105 Germany info@geomar.de https://www.geomar.de/en/ web site https://sextant.ifremer.fr/documentation/emodnet_chemistry/images/2025/mlf_density_nb_by_size_other.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 Micro-litter in water bodies Parameter Discovery Vocabulary (P02) 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P02 Adriatic Sea Central Baltic Sea Asian mainland Celtic Sea English Channel Dover Strait Ionian Sea Balearic Sea Aegean Sea Bay of Biscay Sound Sea Gulf of Riga Gulf of Finland Mediterranean Sea, Eastern Basin Mediterranean Sea, Western Basin Tyrrhenian Sea Lyme Bay Northeast Atlantic Ocean (40W) SeaVoX salt and fresh water body gazetteer 2021-04-07 geonetwork.thesaurus.external.reference-geographical-area.NVS.C19 EMODnet Chemistry water body 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 2021-12-08 geonetwork.thesaurus.local.theme.mission-atlantic-resources Celtic Seas Mission Atlantic - Case Studies 2021-11-30 geonetwork.thesaurus.local.theme.mission-atlantic-case-studies WP4 Benthic Mapping Mission Atlantic - Work Package 2021-08-10 geonetwork.thesaurus.local.theme.mission-atlantic-work-package /Environment/Pollution Mission Atlantic - BODC Parameters 2021-05-04 geonetwork.thesaurus.local.theme.mission-atlantic-bodc-parameters Spatial data products Mission Atlantic - Data type (DMP) 2021-11-30 geonetwork.thesaurus.local.theme.mission-atlantic-data-type /Boulogne-sur-Mer/BOL02 /Boulogne-sur-Mer/BOL04 /Boulogne-sur-Mer/BOL06 /Bournemouth/BOR01 /Concepción/CON06 /Kuala Lumpur/KUL08 /La Rochelle/LAR01 /Peniche/PEN01 Ocean Hackathon - City and challenge 2023-09-13 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 -178.292 179.855 -55.482 78.973 2011-08-31T07:52:00 2021-06-15T06:46:00 -20.0 0.0 https://doi.org/10.6092/d3e239ec-f790-4ee4-9bb4-c32ef39b426d WWW:LINK Guidelines and formats for gathering micro-litter data Guidelines and formats for gathering micro-litter data https://sextant.ifremer.fr/documentation/emodnet_chemistry/document/Field_description/MLF_field_description_density_nb_by_size.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/mlf_density_nb_by_size_other.zip WWW:DOWNLOAD Direct Download Direct Download https://emodnet.ec.europa.eu/geoviewer/ WWW:LINK EMODnet Map Viewer EMODnet Map Viewer https://sextant.ifremer.fr/services/wms/emodnet_chemistry2 OGC:WMS mlf_density_nb_by_size_other Micro litter - Other specific protocols - Size of litter per net https://doi.org/10.13120/skvs-yz64 WWW:LINK Visualization products for floating micro-litter data Methodologies applied to create the maps https://doi.org/10.13120/e6182b84-e753-4518-9ee6-17d5f28a3e29 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