Articles | Volume 23, issue 13
https://doi.org/10.5194/bg-23-4779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Carbon accumulation in Mediterranean rhodolith beds during the Holocene
Instituto Mediterráneo de Estudios Avanzados IMEDEA (UIB-CSIC), c. Miquel Marquès 21, 07190 Esporles, Spain
Ryan Smazal
School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
Claudio Lo Iacono
Instituto de Ciencias del Mar (CSIC), Psg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
Maria del Mar Gil
Instituto Mediterráneo de Estudios Avanzados IMEDEA (UIB-CSIC), c. Miquel Marquès 21, 07190 Esporles, Spain
Andrea Cabrito
Instituto de Ciencias del Mar (CSIC), Psg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
Andres Ospina-Alvarez
Instituto Mediterráneo de Estudios Avanzados IMEDEA (UIB-CSIC), c. Miquel Marquès 21, 07190 Esporles, Spain
Jorge Guillén
Instituto de Ciencias del Mar (CSIC), Psg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
Grace M. Cott
School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
Laia Illa-López
Instituto Mediterráneo de Estudios Avanzados IMEDEA (UIB-CSIC), c. Miquel Marquès 21, 07190 Esporles, Spain
Hilmar Hinz
Instituto Mediterráneo de Estudios Avanzados IMEDEA (UIB-CSIC), c. Miquel Marquès 21, 07190 Esporles, Spain
Francesc Maynou
Instituto de Ciencias del Mar (CSIC), Psg. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias, whilst the correct dynamics are recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
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Short summary
Rhodolith beds are seabed habitats formed by free-living coralline algae, but their role in storing carbon is poorly known. We studied a sediment deposit beneath a rhodolith bed in the Menorca Channel using seabed mapping, sediment cores, and radiocarbon dating. We found that the deposit has been accumulating since the early Holocene, and stores organic carbon in its sediments at least since 6,000 years ago.
Rhodolith beds are seabed habitats formed by free-living coralline algae, but their role in...
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