Seafloor litter - Spatial distribution of the sampling effort (period 2017-2022) v2025

Débris marins

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.

Données et ressources

sl_spatialdistribution_samplingeffort_30km

Seafloor Litter - Spatial distribution of the sampling effort (period 2017-2022)

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Description of the layer's fields

Description of the layer's fields

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Direct Download

Direct Download

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EMODnet Map Viewer

EMODnet Map Viewer

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Seafloor litter from the continental shelf and canyons in French Mediterranean Water: Distribution, typologies and trends

The article behind the calculation method

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Visualization products for seafloor litter data

Methodologies applied to create the maps

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Guidelines and forms for gathering marine litter data

Guidelines and forms for gathering marine litter data

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Digital Object Identifier (DOI)

Data Access and Citation

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Informations supplémentaires

Étendue temporelle	2011-05-03 – 2024-03-21
Date (creation)	2025-02-27
Statut	onGoing
Fréquence de mise à jour	asNeeded
Langue des métadonnées	en
Licence	CC BY 4.0: https://creativecommons.org/licenses/by/4.0/
Métadonnées sources	ISO 19115 XML
Dernière mise à jour	2026-11-04
Créé	2026-11-04
API	package_show