A marine and salt marsh sediment organic carbon database for European regional seas (EURO-CARBON)

Anna Elizabeth Løvgren Graversen, Christian Lønborg*, Anna Maria Addamo, Sidsel Gurholt Pedersen, Silvia Chemello, Irene Alejo, Eugenia T. Apostolaki, Maria E. Asplund, William E.N. Austin, Dimitar Berov, Daniela Berto, Mats Björk, Kirsty Black, Nikola Bobchev, Stefano Bonaglia, Gunhild Borgersen, Tjeerd Bouma, Mark J. Costello, Elena Diaz-Almela, Panagiotis D. DimitriouCarlos M. Duarte, Carmen Leiva Dueñas, Pavlos T. Efthymiadis, Ines Mazarrasa Elosegui, Maria Recio Espinosa, Helena L. Filipsson, Marcos Fontela, Stein Fredriksen, Helene Frigstad, Karine Gagnon, Catalina A. Garcia-Escudero, Michele Giani, Anne Grouhel-Pellouin, Roberta Guerra, Martin Gullström, Hege Gundersen, Kasper Hancke, Claudia Majtényi-Hill, Corallie Hunt, Karina Inostroza, Ioannis Karakassis, Ventzislav Karamfilov, Stefania Klayn, Katarzyna Koziorowska, Karol Kuliński, Paul Lavery, Wytze K. Lenstra, Ana I. Lillebø, Ella Logemann, Paolo Magni, Núria Marbà, Candela Marco-Mendez, Marcio Martins, Miguel Angel Mateo, Briac Monnier, Peter Mueller, Joao M. Neto, Nafsika Papageorgiou, Carlos Eduardo de Rezende, Juan Carlos Farias Pardo, Jose Antonio Juanes De La Peña, Gérard Pergent, Nerea Piñeiro-Juncal, Joanne Preston, Federico Rampazzo, Gloria Reithmaier, Thorsten B.H. Reusch, Sarah Reynolds, Aurora M. Ricart, Rui Santos, Carmen B. de los Santos, Isaac R. Santos, Eduard Serrano, Oscar Serrano, Caroline P. Slomp, Craig Smeaton, Montserrar Soler, Ana I. Sousa, Timo Spiegel, Angela Stevenson, Jonas Thormar, Hilde Cecilie Trannum, Niels A.G.M. van Helmond, Sarah Paradis, Salvatrice Vizzini, Emma A. Ward, Yvonne Y.Y. Yau, Rym Zakhama-Sraieb, Imen Zribi, Olga M. Zygadlowska, Dorte Krause Jensen

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

Marine and salt marsh sediments contain large amounts of organic carbon (OC) and are therefore important in the global carbon cycle. Here, we collated previously published and unpublished measurements of sediment OC in marine and salt marsh sediments in European regional seas (EURO-CARBON; available at https://doi.org/10.5281/zenodo.14905489). To the extent possible the OC data were complemented by variables such as sediment porosity and dry bulk density. The EURO-CARBON dataset holds 61306 individual data entries of sediment OC content from different regions of European regional seas. Around three quarters (76%) were collected in coastal and deep sea bare sediments, 18% from salt marshes, 7% from seagrass habitats, and 0.03% from macroalgal habitats. For all habitats and sediment depth layers the OC content varied between <0.1 and 41.56 % (avg.: 2.47 ± 3.37 %; median: 1.39 %), with the content generally decreasing in the following sequence: salt marsh (5.01 ± 5.96 %; 3.03 %) > seagrass (2.37 ± 5.96 %; 3.03 %) > bare sediment (1.88 ± 2.03 %; 1.20 %). The EURO-CARBON dataset will serve as a basis for future work, and it will be an important resource for researchers, managers, and policymakers working towards protecting sediment OC pools.

Original languageEnglish
Article number111595
JournalData in Brief
Volume60
ISSN2352-3409
DOIs
Publication statusPublished - Jun 2025

Keywords

  • Blue carbon
  • Marine sediments
  • Salt marsh
  • Seagrass
  • Sediment organic carbon

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