Articles | Volume 18, issue 21
Biogeosciences, 18, 5871–5889, 2021
https://doi.org/10.5194/bg-18-5871-2021

Special issue: Atmospheric deposition in the low-nutrient-low-chlorophyll...

Biogeosciences, 18, 5871–5889, 2021
https://doi.org/10.5194/bg-18-5871-2021
Research article
04 Nov 2021
Research article | 04 Nov 2021

Phosphorus cycling in the upper waters of the Mediterranean Sea (PEACETIME cruise): relative contribution of external and internal sources

Elvira Pulido-Villena et al.

Related authors

N2 fixation in the Mediterranean Sea related to the composition of the diazotrophic community and impact of dust under present and future environmental conditions
Céline Ridame, Julie Dinasquet, Søren Hallstrøm, Estelle Bigeard, Lasse Riemann, France Van Wambeke, Matthieu Bressac, Elvira Pulido-Villena, Vincent Taillandier, Fréderic Gazeau, Antonio Tovar-Sanchez, Anne-Claire Baudoux, and Cécile Guieu
Biogeosciences, 19, 415–435, https://doi.org/10.5194/bg-19-415-2022,https://doi.org/10.5194/bg-19-415-2022, 2022
Short summary
Influence of atmospheric deposition on biogeochemical cycles in an oligotrophic ocean system
France Van Wambeke, Vincent Taillandier, Karine Desboeufs, Elvira Pulido-Villena, Julie Dinasquet, Anja Engel, Emilio Marañón, Céline Ridame, and Cécile Guieu
Biogeosciences, 18, 5699–5717, https://doi.org/10.5194/bg-18-5699-2021,https://doi.org/10.5194/bg-18-5699-2021, 2021
Short summary
Impact of dust addition on Mediterranean plankton communities under present and future conditions of pH and temperature: an experimental overview
Frédéric Gazeau, Céline Ridame, France Van Wambeke, Samir Alliouane, Christian Stolpe, Jean-Olivier Irisson, Sophie Marro, Jean-Michel Grisoni, Guillaume De Liège, Sandra Nunige, Kahina Djaoudi, Elvira Pulido-Villena, Julie Dinasquet, Ingrid Obernosterer, Philippe Catala, and Cécile Guieu
Biogeosciences, 18, 5011–5034, https://doi.org/10.5194/bg-18-5011-2021,https://doi.org/10.5194/bg-18-5011-2021, 2021
Short summary
Spatial patterns of ectoenzymatic kinetics in relation to biogeochemical properties in the Mediterranean Sea and the concentration of the fluorogenic substrate used
France Van Wambeke, Elvira Pulido, Philippe Catala, Julie Dinasquet, Kahina Djaoudi, Anja Engel, Marc Garel, Sophie Guasco, Barbara Marie, Sandra Nunige, Vincent Taillandier, Birthe Zäncker, and Christian Tamburini
Biogeosciences, 18, 2301–2323, https://doi.org/10.5194/bg-18-2301-2021,https://doi.org/10.5194/bg-18-2301-2021, 2021
Short summary
Potential bioavailability of organic matter from atmospheric particles to marine heterotrophic bacteria
Kahina Djaoudi, France Van Wambeke, Aude Barani, Nagib Bhairy, Servanne Chevaillier, Karine Desboeufs, Sandra Nunige, Mohamed Labiadh, Thierry Henry des Tureaux, Dominique Lefèvre, Amel Nouara, Christos Panagiotopoulos, Marc Tedetti, and Elvira Pulido-Villena
Biogeosciences, 17, 6271–6285, https://doi.org/10.5194/bg-17-6271-2020,https://doi.org/10.5194/bg-17-6271-2020, 2020

Related subject area

Biogeochemistry: Open Ocean
Early winter barium excess in the southern Indian Ocean as an annual remineralisation proxy (GEOTRACES GIPr07 cruise)
Natasha René van Horsten, Hélène Planquette, Géraldine Sarthou, Thomas James Ryan-Keogh, Nolwenn Lemaitre, Thato Nicholas Mtshali, Alakendra Roychoudhury, and Eva Bucciarelli
Biogeosciences, 19, 3209–3224, https://doi.org/10.5194/bg-19-3209-2022,https://doi.org/10.5194/bg-19-3209-2022, 2022
Short summary
Controlling factors on the global distribution of a representative marine non-cyanobacterial diazotroph phylotype (Gamma A)
Zhibo Shao and Ya-Wei Luo
Biogeosciences, 19, 2939–2952, https://doi.org/10.5194/bg-19-2939-2022,https://doi.org/10.5194/bg-19-2939-2022, 2022
Short summary
Summer trends and drivers of sea surface fCO2 and pH changes observed in the southern Indian Ocean over the last two decades (1998–2019)
Coraline Leseurre, Claire Lo Monaco, Gilles Reverdin, Nicolas Metzl, Jonathan Fin, Claude Mignon, and Léa Benito
Biogeosciences, 19, 2599–2625, https://doi.org/10.5194/bg-19-2599-2022,https://doi.org/10.5194/bg-19-2599-2022, 2022
Short summary
Global nutrient cycling by commercially targeted marine fish
Priscilla Le Mézo, Jérôme Guiet, Kim Scherrer, Daniele Bianchi, and Eric Galbraith
Biogeosciences, 19, 2537–2555, https://doi.org/10.5194/bg-19-2537-2022,https://doi.org/10.5194/bg-19-2537-2022, 2022
Short summary
Major processes of the dissolved cobalt cycle in the North and equatorial Pacific Ocean
Rebecca Chmiel, Nathan Lanning, Allison Laubach, Jong-Mi Lee, Jessica Fitzsimmons, Mariko Hatta, William Jenkins, Phoebe Lam, Matthew McIlvin, Alessandro Tagliabue, and Mak Saito
Biogeosciences, 19, 2365–2395, https://doi.org/10.5194/bg-19-2365-2022,https://doi.org/10.5194/bg-19-2365-2022, 2022
Short summary

Cited articles

Aminot, A. and Kérouel, R.: Dosage automatique des nutriments dans les eaux marines, Méthodes en flux continu, Editions Quae, Versailles, France, 188 pp., ISBN 978-2-7592-0023-8, 2007. 
Ammerman, J. W., Hood, R. R., Case, D. A., and Cotner, J. B.: Phosphorus deficiency in the Atlantic: An emerging paradigm in oceanography, EOS, 84, 165–170, https://doi.org/10.1029/2003eo180001, 2003. 
Armstrong, F. A., Williams, P. M., and Strickland, J. D. H.: Photo-oxidation of organic matter in seawater byultraviolet radiation, analytical and other applications, Nature, 211, 481–483, https://doi.org/10.1038/211481a0, 1966. 
Arnosti, C.: Microbial Extracellular enzymes and the marine carbon cycle, Ann. Rev. Mar. Sci., 3, 401–425, https://doi.org/10.1146/annurev-marine-120709-142731, 2011. 
Baltar, F.: Watch Out for the “Living Dead”: Cell-Free Enzymes and Their Fate, Front. Microbiol., 8, 2438, https://doi.org/10.3389/fmicb.2017.02438, 2018. 
Download
Short summary
We report on phosphorus dynamics in the surface layer of the Mediterranean Sea. Highly sensitive phosphate measurements revealed vertical gradients above the phosphacline. The relative contribution of diapycnal fluxes to total external supply of phosphate to the mixed layer decreased towards the east, where atmospheric deposition dominated. Taken together, external sources of phosphate contributed little to total supply, which was mainly sustained by enzymatic hydrolysis of organic phosphorus.
Altmetrics
Final-revised paper
Preprint