Beach Litter - Median of total number of litter items normalized per 100m & to 1 survey - EU-MSFD monitoring 2001/2021 v2021

This visualization product displays the total abundance of marine macro-litter (> 2.5cm) per beach per year from Marine Strategy Framework Directive (MSFD) monitoring surveys.

EMODnet Chemistry included the collection of marine litter in its 3rd phase. Since the beginning of 2018, data of beach litter 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 and reference lists used on a European scale.

Preliminary processing were necessary to harmonize all the data: - Exclusion of OSPAR 1000 protocol: in order to follow the approach of OSPAR that it is not including these data anymore in the monitoring; - Selection of MSFD surveys only (exclusion of other monitoring, cleaning and research operations); - Exclusion of beaches without coordinates; - Some categories & some litter types like organic litter, small fragments (paraffin and wax; items > 2.5cm) and pollutants have been removed. The list of selected items is attached to this metadata. This list was created using EU Marine Beach Litter Baselines and EU Threshold Value for Macro Litter on Coastlines from JRC (these two documents are attached to this metadata); - Normalization of survey lengths to 100m & 1 survey / year: in some cases, the survey length was not exactly 100m, so in order to be able to compare the abundance of litter from different beaches a normalization is applied using this formula: Number of items (normalized by 100 m) = Number of litter per items x (100 / survey length) Then, this normalized number of items is summed to obtain the total normalized number of litter for each survey. Finally, the median abundance for each beach and year is calculated from these normalized abundances per survey. Sometimes the survey length was null or equal to 0. Assuming that the MSFD protocol has been applied, the length has been set at 100m in these cases.

Percentiles 50, 75, 95 & 99 have been calculated taking into account MSFD data for all years.

More information is available in the attached documents.

Warning: the absence of data on the map doesn't necessarily mean that it doesn't exist, but that no information has been entered in the Marine Litter Database for this area.

Identifier
Source https://data.blue-cloud.org/search-details?step=~012a8e66da6-ebac-4c4d-96cb-4542eb66894b
Metadata Access https://data.blue-cloud.org/api/collections/a8e66da6-ebac-4c4d-96cb-4542eb66894b
Provenance
Publisher Blue-Cloud Data Discovery & Access service; EMODnet Chemistry
Contributor EMODnet Chemistry; IFREMER / IDM / SISMER - Scientific Information Systems for the SEA; Ifremer / VIGIES (Information Valuation Service for Integrated Management and Monitoring); National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography; Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring); IFREMER, SISMER, Scientific Information Systems for the SEA; Aarhus University,Danish Centre for Environment and Energy; Aarhus University, Department of Bioscience; ARPA Calabria; ARPA Emilia-Romagna, Struttura Oceanografica Daphne; ARPA Liguria; Black Sea Basin Directorate; CENTRE FOR DOCUMENTATION, RESEARCH AND EXPERIMENTATION ON ACCIDENTAL WATER POLLUTION; Chief Inspectorate for Environmental Protection; Department of Fisheries and Marine Research, Division of Marine Biology and Ecology; Environment and Resources Authority; EUCC, The Coastal Union Germany; Foundation for Environmental Education, Latvia; French Agency For Biodiversity; Hellenic Centre for Marine Research, Institute of Oceanography; Institute for Water of the Republic of Slovenia; Institute of Oceanography and Fisheries; Jordsand Association; Keep the Archipelago Tidy Association; Keep the Estonian Sea Tidy Association; KIMO Denmark; KIMO International Secretariat; Marine Research Institute of Klaipeda University; Mediterranean Information Office for Environment, Culture and Sustainable Development; Mer-Terre; MTE-DGSCM, Directorate for Coast and Sea Sustainability. Ministry for Ecological Transition; National Agricultural Research Foundation, Fisheries Research Institute; National Institute for Marine Research and Development "Grigore Antipa"; National Institute of Chemistry; National Park Authority Vorpommern; Nature and Biodiversity Conservation Union Germany; Nature and Biodiversity Conservation Union, Marine Conservation Office; Non-governmental environmental organization "Mare Nostrum"; Office of Schleswig-Holstein Wadden Sea National Park; Portuguese Environment Agency; Regional School "Windland" Altenkirchen; Royal Belgian Institute of Natural Sciences; Southeast Rügen Biosphere Reserve Office; State Agency for Environment, Nature and Geology, Mecklenburg-Vorpommern; State Office for Agriculture, Environment and Rural Areas of Schleswig Holstein; The Danish Environmental Protection Agency; The Keep Sweden Tidy Foundation; The North Sea Foundation; Treanbeg Marine; University of Patras, Department of Geology, Laboratory of Marine Geology and Physical Oceanography
Publication Year 2024
OpenAccess true
Contact blue-cloud-support(at)maris.nl
Representation
Discipline Marine Science
Spatial Coverage (-53.602W, 28.394S, 41.771E, 81.686N)
Temporal Coverage Begin 2001-01-01T00:00:00Z
Temporal Coverage End 2021-11-26T00:00:00Z