Articles | Volume 19, issue 3
https://doi.org/10.5194/bg-19-931-2022
https://doi.org/10.5194/bg-19-931-2022
Research article
 | 
15 Feb 2022
Research article |  | 15 Feb 2022

Nutrient transport and transformation in macrotidal estuaries of the French Atlantic coast: a modeling approach using the Carbon-Generic Estuarine Model

Xi Wei, Josette Garnier, Vincent Thieu, Paul Passy, Romain Le Gendre, Gilles Billen, Maia Akopian, and Goulven Gildas Laruelle

Related authors

OLIGOTREND, towards a global database of multi-decadal chlorophyll-a and water quality timeseries for rivers, lakes and estuaries
Camille Minaudo, Andras Abonyi, Carles Alcaraz, Jacob Diamond, Nicholas J. K. Howden, Michael Rode, Estela Romero, Vincent Thieu, Fred Worrall, Qian Zhang, and Xavier Benito
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-58,https://doi.org/10.5194/essd-2025-58, 2025
Preprint under review for ESSD
Short summary
ReefTEMPS: The Pacific Islands Coastal Temperature Network
Romain Le Gendre, David Varillon, Sylvie Fiat, Régis Hocdé, Antoine De Ramon N'Yeurt, Jérôme Aucan, Sophie Cravatte, Maxime Duphil, Alexandre Ganachaud, Baptiste Gaudron, Elodie Kestenare, Vetea Liao, Bernard Pelletier, Alexandre Peltier, Anne-Lou Schaefer, Thomas Trophime, Simon Van Wynsberge, Yves Dandonneau, Michel Allenbach, and Christophe Menkes
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-394,https://doi.org/10.5194/essd-2024-394, 2024
Preprint under review for ESSD
Short summary
Lagoon hydrodynamics of pearl farming islands: the case of Gambier (French Polynesia)
Oriane Bruyère, Romain Le Gendre, Vetea Liao, and Serge Andréfouët
Earth Syst. Sci. Data, 16, 667–679, https://doi.org/10.5194/essd-16-667-2024,https://doi.org/10.5194/essd-16-667-2024, 2024
Short summary
A novel sea surface pCO2-product for the global coastal ocean resolving trends over 1982–2020
Alizée Roobaert, Pierre Regnier, Peter Landschützer, and Goulven G. Laruelle
Earth Syst. Sci. Data, 16, 421–441, https://doi.org/10.5194/essd-16-421-2024,https://doi.org/10.5194/essd-16-421-2024, 2024
Short summary
Lagoon hydrodynamics of pearl farming atolls: the case of Raroia, Takapoto, Apataki and Takaroa (French Polynesia)
Oriane Bruyère, Romain Le Gendre, Mathilde Chauveau, Bertrand Bourgeois, David Varillon, John Butscher, Thomas Trophime, Yann Follin, Jérôme Aucan, Vetea Liao, and Serge Andréfouët
Earth Syst. Sci. Data, 15, 5553–5573, https://doi.org/10.5194/essd-15-5553-2023,https://doi.org/10.5194/essd-15-5553-2023, 2023
Short summary

Related subject area

Biogeochemistry: Modelling, Aquatic
Efficiency metrics for ocean alkalinity enhancements under responsive and prescribed atmospheric pCO2 conditions
Michael D. Tyka
Biogeosciences, 22, 341–353, https://doi.org/10.5194/bg-22-341-2025,https://doi.org/10.5194/bg-22-341-2025, 2025
Short summary
Changes in Arctic Ocean plankton community structure and trophic dynamics on seasonal to interannual timescales
Gabriela Negrete-García, Jessica Y. Luo, Colleen M. Petrik, Manfredi Manizza, and Andrew D. Barton
Biogeosciences, 21, 4951–4973, https://doi.org/10.5194/bg-21-4951-2024,https://doi.org/10.5194/bg-21-4951-2024, 2024
Short summary
Global impact of benthic denitrification on marine N2 fixation and primary production simulated by a variable-stoichiometry Earth system model
Na Li, Christopher J. Somes, Angela Landolfi, Chia-Te Chien, Markus Pahlow, and Andreas Oschlies
Biogeosciences, 21, 4361–4380, https://doi.org/10.5194/bg-21-4361-2024,https://doi.org/10.5194/bg-21-4361-2024, 2024
Short summary
Modeling the contribution of micronekton diel vertical migrations to carbon export in the mesopelagic zone
Hélène Thibault, Frédéric Ménard, Jeanne Abitbol-Spangaro, Jean-Christophe Poggiale, and Séverine Martini
EGUsphere, https://doi.org/10.5194/egusphere-2024-2074,https://doi.org/10.5194/egusphere-2024-2074, 2024
Short summary
Killing the predator: impacts of highest-predator mortality on the global-ocean ecosystem structure
David Talmy, Eric Carr, Harshana Rajakaruna, Selina Våge, and Anne Willem Omta
Biogeosciences, 21, 2493–2507, https://doi.org/10.5194/bg-21-2493-2024,https://doi.org/10.5194/bg-21-2493-2024, 2024
Short summary

Cited articles

Arndt, S., Regnier, P., and Vanderborght, J. P.: Seasonally-resolved nutrient export fluxes and filtering capacities in a macrotidal estuary, J. Marine Syst., 78, 42–58, https://doi.org/10.1016/j.jmarsys.2009.02.008, 2009. 
Arndt, S., Lacroix, G., Gypens, N., Regnier, P., and Lancelot, C.: Nutrient dynamics and phytoplankton development along an estuary–coastal zone continuum: A model study, J. Marine Syst., 84, 49–66, https://doi.org/10.1016/j.jmarsys.2010.08.005, 2011. 
Baker, A.: Land Use and Water Quality, in: Encyclopedia of Hydrological Sciences, edited by: Anderson, M. G. and McDonnell, J. J., https://doi.org/10.1002/0470848944.hsa195, 2006. 
Barbier, E. B., Hacker, S. D., Kennedy, C., Koch, E. W., Stier, A. C., and Silliman, B. R.: The value of estuarine and coastal ecosystem services, Ecol. Monogr., 81, 169–193, https://doi.org/10.1890/10-1510.1, 2011. 
Bauer, J. E., Cai, W. J., Raymond, P. A., Bianchi, T. S., Hopkinson, C. S., and Regnier, P. A.: The changing carbon cycle of the coastal ocean, Nature, 504, 61–70, https://doi.org/10.1038/nature12857, 2013. 
Download
Short summary
Estuaries are key reactive ecosystems along the land–ocean aquatic continuum and are often strongly impacted by anthropogenic activities. We calculated nutrient in and out fluxes by using a 1-D transient model for seven estuaries along the French Atlantic coast. Among these, large estuaries with high residence times showed higher retention rates than medium and small ones. All reveal coastal eutrophication due to the excess of diffused nitrogen from intensive agricultural river basins.
Share
Altmetrics
Final-revised paper
Preprint