Beach Litter - Median number of fishing and aquaculture related plastic items normalized per 100m & to 1 survey - Other sources 2001/2020 v2021

This visualization product displays the fishing & aquaculture related plastic items abundance of marine macro-litter (> 2.5cm) per beach per year from non-MSFD monitoring surveys, research & cleaning operations.

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 surveys from non-MSFD monitoring, cleaning and research operations; - Exclusion of beaches without coordinates; - Selection of fishing and aquaculture related plastic items only. 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); - Exclusion of surveys without associated length; - Normalization of survey lengths to 100m & 1 survey / year: in some case, the survey length was not 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 fishing & aquaculture related plastic items of the survey (normalized by 100 m) = Number of fishing & aquaculture related items of the survey x (100 / survey length) Then, this normalized number of fishing & aquaculture related plastic items is summed to obtain the total normalized number of fishing & aquaculture related plastic items for each survey. Finally, the median abundance of fishing & aquaculture related plastic items for each beach and year is calculated from these normalized abundances of fishing & aquaculture related items per survey.

Percentiles 50, 75, 95 & 99 have been calculated taking into account fishing & aquaculture related plastic items from other sources 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 they don'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=~012157ed871-30a8-4088-baa0-0291618d0e4f
Metadata Access https://data.blue-cloud.org/api/collections/157ed871-30a8-4088-baa0-0291618d0e4f
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; Aegean Greeners; Archipelagos Institute of Marine Conservation; Asociación Vertidos Cero; Black Sea NGO Network; Department of Fisheries and Marine Research, Division of Marine Biology and Ecology; Disciplinary Centre of Marine Research and Environmental; ECAT-Environmental Center for Administration & Technology; Estonian Green Movement; European Environment Agency; eXXpedition; Foundation for Environmental Education, Latvia; Hellenic Centre for Marine Research, Institute of Oceanography; Hold Danmark Rent; Institute for Water of the Republic of Slovenia; Institute of Marine Biology (IMBK); Institute of Marine Sciences, Middle East Technical University; Institute of Oceanology, Bulgarian Academy of Sciences; International Council for the Exploration of the Sea; Isotech Ltd Environmental Research and Consultancy; Istanbul University, Institute of Marine Science and Management; Iv.Javakhishvili Tbilisi State University, Centre of Relations with UNESCO Oceanological Research Centre and GeoDNA (UNESCO); KIMO International Secretariat; Legambiente; Marine Conservation Society; Maritime Training Center for Pollution Prevention, Safety at Sea and Environmental Awareness; Mediterranean Information Office for Environment, Culture and Sustainable Development; National Institute for Marine Research and Development "Grigore Antipa"; National Institute of Marine Geology and Geoecology; Non-governmental environmental organization "Mare Nostrum"; Norwegian Environment Agency; OceanCare; Plastic Change; Portuguese Association for Marine Litter, APLM; State Oceanographic Institute; Surfers Against Sewage; Surfrider Foundation Europe; Turkish Marine Research Foundation; Ukrainian scientific center of Ecology of Sea
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 2020-04-22T00:00:00Z