Seafloor litter - Spatial distribution of the sampling effort (period 2017-2022) v2025
This visualization product displays the spatial distribution of the sampling effort over the six-years' period 2017-2022.
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.
The spatial distribution was determined by calculating the number of times each cell was sampled during the period 2017-2022. The corresponding total distance (kms) sampled in each cell is also provided in the attribute table.
Information on data processing and calculation are detailed in the attached methodology 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.
This work is based on the work presented in the following scientific article: O. Gerigny, M. Brun, M.C. Fabri, C. Tomasino, M. Le Moigne, A. Jadaud, F. Galgani, Seafloor litter from the continental shelf and canyons in French Mediterranean Water: Distribution, typologies and trends, Marine Pollution Bulletin, Volume 146, 2019, Pages 653-666, ISSN 0025-326X, https://doi.org/10.1016/j.marpolbul.2019.07.030.
Data and resources
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Seafloor Litter - Spatial distribution of the sampling effort (period 2017-2022)HTML Open
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Description of the layer's fieldsHTML Open
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Direct DownloadZIP Open
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EMODnet Map ViewerHTML Open
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The article behind the calculation methodHTML Open
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Methodologies applied to create the mapsHTML Open
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Guidelines and forms for gathering marine litter dataHTML Open
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Data Access and CitationHTML Open
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Additional information
| Temporal extent | 2011-05-03 – 2024-03-21 |
|---|---|
| Date (creation) | 2025-02-27 |
| Status | onGoing |
| Update frequency | asNeeded |
| Metadata language | en |
| License | CC BY 4.0: https://creativecommons.org/licenses/by/4.0/ |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |