Implementation and assessment of a model including mixotrophs and the carbonate cycle (Eco3M_MIX-CarbOx v1.0) in a highly dynamic Mediterranean coastal environment (Bay of Marseille, France) – Part 1: Evolution of ecosystem composition under limited light and nutrient conditions

Barré, Lucille; Diaz, Frédéric; Wagener, Thibaut; Van Wambeke, France; Mazoyer, Camille; Yohia, Christophe; Pinazo, Christel

doi:https://doi.org/10.5194/gmd-16-6701-2023

Articles | Volume 16, issue 22

https://doi.org/10.5194/gmd-16-6701-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-16-6701-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 22

Model description paper

|

21 Nov 2023

Model description paper |

| 21 Nov 2023

Implementation and assessment of a model including mixotrophs and the carbonate cycle (Eco3M_MIX-CarbOx v1.0) in a highly dynamic Mediterranean coastal environment (Bay of Marseille, France) – Part 1: Evolution of ecosystem composition under limited light and nutrient conditions

Lucille Barré, Frédéric Diaz, Thibaut Wagener, France Van Wambeke, Camille Mazoyer, Christophe Yohia, and Christel Pinazo

Supplement

https://doi.org/10.5194/gmd-16-6701-2023-supplement

Data sets

SOMLIT-Frioul time series (French Research Infrastructure ILICO): long-term core parameter monitoring in the Bay of Marseille Nicole Garcia, Gerald Gregori, Michel Lafont, Véronique Lagadec, Sandra Nunige, and Patrick Raimbault https://doi.org/10.17882/96252

Panache du Rhône: Suivi des eaux du Rhône en zone côtière par mesure haute fréquence de la salinité de surface, MIO UMR 7294 CNRS F. Garcia and P. Raimbault https://doi.org/10.34930/79C421C5-9335-4957-88FA-804FB4AE4B43

Model code and software

Eco3M_MIX-CarbOx (v1.0) Lucille Barré, Frédéric Diaz, Thibaut Wagener, France Van Wambeke, Camille Mazoyer, Christophe Yohia, and Christel Pinazo https://doi.org/10.5281/zenodo.7669658

Short summary

While several studies have shown that mixotrophs play a crucial role in the carbon cycle, the impact of environmental forcings on their dynamics remains poorly investigated. Using a biogeochemical model that considers mixotrophs, we study the impact of light and nutrient concentration on the ecosystem composition in a highly dynamic Mediterranean coastal area: the Bay of Marseille. We show that mixotrophs cope better with oligotrophic conditions compared to strict auto- and heterotrophs.