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

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
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, Frederic Gazeau, Antonio Tover-Sanchez, Anne-Claire Baudoux, and Cécile Guieu
Biogeosciences Discuss., https://doi.org/10.5194/bg-2021-190,https://doi.org/10.5194/bg-2021-190, 2021
Revised manuscript accepted for BG
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
Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016)
Gerhard Fischer, Oscar E. Romero, Johannes Karstensen, Karl-Heinz Baumann, Nasrollah Moradi, Morten Iversen, Götz Ruhland, Marco Klann, and Arne Körtzinger
Biogeosciences, 18, 6479–6500, https://doi.org/10.5194/bg-18-6479-2021,https://doi.org/10.5194/bg-18-6479-2021, 2021
Short summary
Subsurface iron accumulation and rapid aluminum removal in the Mediterranean following African dust deposition
Matthieu Bressac, Thibaut Wagener, Nathalie Leblond, Antonio Tovar-Sánchez, Céline Ridame, Vincent Taillandier, Samuel Albani, Sophie Guasco, Aurélie Dufour, Stéphanie H. M. Jacquet, François Dulac, Karine Desboeufs, and Cécile Guieu
Biogeosciences, 18, 6435–6453, https://doi.org/10.5194/bg-18-6435-2021,https://doi.org/10.5194/bg-18-6435-2021, 2021
Short summary
Long-distance particle transport to the central Ionian Sea
Léo Berline, Andrea Michelangelo Doglioli, Anne Petrenko, Stéphanie Barrillon, Boris Espinasse, Frederic A. C. Le Moigne, François Simon-Bot, Melilotus Thyssen, and François Carlotti
Biogeosciences, 18, 6377–6392, https://doi.org/10.5194/bg-18-6377-2021,https://doi.org/10.5194/bg-18-6377-2021, 2021
Short summary
Deep chlorophyll maximum and nutricline in the Mediterranean Sea: emerging properties from a multi-platform assimilated biogeochemical model experiment
Anna Teruzzi, Giorgio Bolzon, Laura Feudale, and Gianpiero Cossarini
Biogeosciences, 18, 6147–6166, https://doi.org/10.5194/bg-18-6147-2021,https://doi.org/10.5194/bg-18-6147-2021, 2021
Short summary
Fast local warming is the main driver of recent deoxygenation in the northern Arabian Sea
Zouhair Lachkar, Michael Mehari, Muchamad Al Azhar, Marina Lévy, and Shafer Smith
Biogeosciences, 18, 5831–5849, https://doi.org/10.5194/bg-18-5831-2021,https://doi.org/10.5194/bg-18-5831-2021, 2021
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