Articles | Volume 18, issue 17
https://doi.org/10.5194/bg-18-5011-2021
© Author(s) 2021. 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-18-5011-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Sep 2021
Research article |
| 13 Sep 2021
| 13 Sep 2021
Impact of dust addition on Mediterranean plankton communities under present and future conditions of pH and temperature: an experimental overview
Frédéric Gazeau
CORRESPONDING AUTHOR
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
Céline Ridame
CNRS-INSU/IRD/MNHN/UPMC, LOCEAN: Laboratoire d'Océanographie et
du Climat: Expérimentation et Approches Numériques, UMR 7159, 75252
Paris CEDEX 05, France
France Van Wambeke
Aix-Marseille Université, Université de Toulon, CNRS/INSU,
IRD, MIO, UM 110, 13288 Marseille, France
Samir Alliouane
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
Christian Stolpe
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
Jean-Olivier Irisson
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
Sophie Marro
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
Jean-Michel Grisoni
Sorbonne Université, CNRS, Institut de la Mer de Villefranche,
IMEV, 06230 Villefranche-sur-Mer, France
Guillaume De Liège
Sorbonne Université, CNRS, Institut de la Mer de Villefranche,
IMEV, 06230 Villefranche-sur-Mer, France
Sandra Nunige
Aix-Marseille Université, Université de Toulon, CNRS/INSU,
IRD, MIO, UM 110, 13288 Marseille, France
Kahina Djaoudi
Aix-Marseille Université, Université de Toulon, CNRS/INSU,
IRD, MIO, UM 110, 13288 Marseille, France
Elvira Pulido-Villena
Aix-Marseille Université, Université de Toulon, CNRS/INSU,
IRD, MIO, UM 110, 13288 Marseille, France
Julie Dinasquet
Scripps Institution of Oceanography, University of California San
Diego, USA
CNRS, Sorbonne Université, Laboratoire d'Océanographie
Microbienne, LOMIC, 66650 Banyuls-sur-Mer, France
Ingrid Obernosterer
CNRS, Sorbonne Université, Laboratoire d'Océanographie
Microbienne, LOMIC, 66650 Banyuls-sur-Mer, France
Philippe Catala
CNRS, Sorbonne Université, Laboratoire d'Océanographie
Microbienne, LOMIC, 66650 Banyuls-sur-Mer, France
Cécile Guieu
Sorbonne Université, CNRS, Laboratoire d'Océanographie de
Villefranche, LOV, 06230 Villefranche-sur-Mer, France
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Saharan dust deposition of nutrients and trace metals is crucial to microbes in the Mediterranean Sea. Here, we tested the response of microbial and viral communities to simulated dust deposition under present and future conditions of temperature and pH. Overall, the effect of the deposition was dependent on the initial microbial assemblage, and future conditions will intensify microbial responses. We observed effects on trophic interactions, cascading all the way down to viral processes.
Karine Desboeufs, Franck Fu, Matthieu Bressac, Antonio Tovar-Sánchez, Sylvain Triquet, Jean-François Doussin, Chiara Giorio, Patrick Chazette, Julie Disnaquet, Anaïs Feron, Paola Formenti, Franck Maisonneuve, Araceli Rodríguez-Romero, Pascal Zapf, François Dulac, and Cécile Guieu
Atmos. Chem. Phys., 22, 2309–2332, https://doi.org/10.5194/acp-22-2309-2022, https://doi.org/10.5194/acp-22-2309-2022, 2022
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This article reports the first concurrent sampling of wet deposition samples and surface seawater and was performed during the PEACETIME cruise in the remote Mediterranean (May–June 2017). Through the chemical composition of trace metals (TMs) in these samples, it emphasizes the decrease of atmospheric metal pollution in this area during the last few decades and the critical role of wet deposition as source of TMs for Mediterranean surface seawater, especially for intense dust deposition events.
Delaney B. Kilgour, Gordon A. Novak, Jon S. Sauer, Alexia N. Moore, Julie Dinasquet, Sarah Amiri, Emily B. Franklin, Kathryn Mayer, Margaux Winter, Clare K. Morris, Tyler Price, Francesca Malfatti, Daniel R. Crocker, Christopher Lee, Christopher D. Cappa, Allen H. Goldstein, Kimberly A. Prather, and Timothy H. Bertram
Atmos. Chem. Phys., 22, 1601–1613, https://doi.org/10.5194/acp-22-1601-2022, https://doi.org/10.5194/acp-22-1601-2022, 2022
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We report measurements of gas-phase volatile organosulfur molecules made during a mesocosm phytoplankton bloom experiment. Dimethyl sulfide (DMS), methanethiol (MeSH), and benzothiazole accounted for on average over 90 % of total gas-phase sulfur emissions. This work focuses on factors controlling the production and emission of DMS and MeSH and the role of non-DMS molecules (such as MeSH and benzothiazole) in secondary sulfate formation in coastal marine environments.
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
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We show that in the Mediterranean Sea spatial variability in N2 fixation is related to the diazotrophic community composition reflecting different nutrient requirements among species. Nutrient supply by Saharan dust is of great importance to diazotrophs, as shown by the strong stimulation of N2 fixation after a simulated dust event under present and future climate conditions; the magnitude of stimulation depends on the degree of limitation related to the diazotrophic community composition.
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
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Phytoplankton growth is limited by the availability of iron in about 50 % of the ocean. Atmospheric deposition of desert dust represents a key source of iron. Here, we present direct observations of dust deposition in the Mediterranean Sea. A key finding is that the input of iron from dust primarily occurred in the deep ocean, while previous studies mainly focused on the ocean surface. This new insight will enable us to better represent controls on global marine productivity in models.
Stéphanie H. M. Jacquet, Christian Tamburini, Marc Garel, Aurélie Dufour, France Van Vambeke, Frédéric A. C. Le Moigne, Nagib Bhairy, and Sophie Guasco
Biogeosciences, 18, 5891–5902, https://doi.org/10.5194/bg-18-5891-2021, https://doi.org/10.5194/bg-18-5891-2021, 2021
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We compared carbon remineralization rates (MRs) in the western and central Mediterranean Sea in late spring during the PEACETIME cruise, as assessed using the barium tracer. We reported higher and deeper (up to 1000 m depth) MRs in the western basin, potentially sustained by an additional particle export event driven by deep convection. The central basin is the site of a mosaic of blooming and non-blooming water masses and showed lower MRs that were restricted to the upper mesopelagic layer.
Elvira Pulido-Villena, Karine Desboeufs, Kahina Djaoudi, France Van Wambeke, Stéphanie Barrillon, Andrea Doglioli, Anne Petrenko, Vincent Taillandier, Franck Fu, Tiphanie Gaillard, Sophie Guasco, Sandra Nunige, Sylvain Triquet, and Cécile Guieu
Biogeosciences, 18, 5871–5889, https://doi.org/10.5194/bg-18-5871-2021, https://doi.org/10.5194/bg-18-5871-2021, 2021
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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.
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
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Simultaneous in situ measurements of (dry and wet) atmospheric deposition and biogeochemical stocks and fluxes in the sunlit waters of the open Mediterranean Sea revealed complex physical and biological processes occurring within the mixed layer. Nitrogen (N) budgets were computed to compare the sources and sinks of N in the mixed layer. The transitory effect observed after a wet dust deposition impacted the microbial food web down to the deep chlorophyll maximum.
Frédéric Gazeau, France Van Wambeke, Emilio Marañón, Maria Pérez-Lorenzo, Samir Alliouane, Christian Stolpe, Thierry Blasco, Nathalie Leblond, Birthe Zäncker, Anja Engel, Barbara Marie, Julie Dinasquet, and Cécile Guieu
Biogeosciences, 18, 5423–5446, https://doi.org/10.5194/bg-18-5423-2021, https://doi.org/10.5194/bg-18-5423-2021, 2021
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Our study shows that the impact of dust deposition on primary production depends on the initial composition and metabolic state of the tested community and is constrained by the amount of nutrients added, to sustain both the fast response of heterotrophic prokaryotes and the delayed one of phytoplankton. Under future environmental conditions, heterotrophic metabolism will be more impacted than primary production, therefore reducing the capacity of surface waters to sequester anthropogenic CO2.
Evelyn Freney, Karine Sellegri, Alessia Nicosia, Leah R. Williams, Matteo Rinaldi, Jonathan T. Trueblood, André S. H. Prévôt, Melilotus Thyssen, Gérald Grégori, Nils Haëntjens, Julie Dinasquet, Ingrid Obernosterer, France Van Wambeke, Anja Engel, Birthe Zäncker, Karine Desboeufs, Eija Asmi, Hilkka Timonen, and Cécile Guieu
Atmos. Chem. Phys., 21, 10625–10641, https://doi.org/10.5194/acp-21-10625-2021, https://doi.org/10.5194/acp-21-10625-2021, 2021
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In this work, we present observations of the organic aerosol content in primary sea spray aerosols (SSAs) continuously generated along a 5-week cruise in the Mediterranean. This information is combined with seawater biogeochemical properties also measured continuously along the ship track to develop a number of parametrizations that can be used in models to determine SSA organic content in oligotrophic waters that represent 60 % of the oceans from commonly measured seawater variables.
Charlotte M. Beall, Jennifer M. Michaud, Meredith A. Fish, Julie Dinasquet, Gavin C. Cornwell, M. Dale Stokes, Michael D. Burkart, Thomas C. Hill, Paul J. DeMott, and Kimberly A. Prather
Atmos. Chem. Phys., 21, 9031–9045, https://doi.org/10.5194/acp-21-9031-2021, https://doi.org/10.5194/acp-21-9031-2021, 2021
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Ice-nucleating particles (INPs) can influence multiple climate-relevant cloud properties by triggering droplet freezing at relative humidities below or temperatures above the freezing point of water. The ocean is a significant INP source; however, the specific identities of marine INPs remain largely unknown. Here, we identify 14 ice-nucleating microbes from aerosol and precipitation samples collected at a coastal site in southern California, two or more of which are likely marine.
Matthieu Roy-Barman, Lorna Foliot, Eric Douville, Nathalie Leblond, Fréderic Gazeau, Matthieu Bressac, Thibaut Wagener, Céline Ridame, Karine Desboeufs, and Cécile Guieu
Biogeosciences, 18, 2663–2678, https://doi.org/10.5194/bg-18-2663-2021, https://doi.org/10.5194/bg-18-2663-2021, 2021
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The release of insoluble elements such as aluminum (Al), iron (Fe), rare earth elements (REEs), thorium (Th) and protactinium (Pa) when Saharan dust falls over the Mediterranean Sea was studied during tank experiments under present and future climate conditions. Each element exhibited different dissolution kinetics and dissolution fractions (always lower than a few percent). Changes in temperature and/or pH under greenhouse conditions lead to a lower Th release and a higher light REE release.
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
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Michaelis–Menten kinetics were determined for alkaline phosphatase, aminopeptidase and β-glucosidase in the Mediterranean Sea. Although the ectoenzymatic-hydrolysis contribution to heterotrophic prokaryotic needs was high in terms of N, it was low in terms of C. This study points out the biases in interpretation of the relative differences in activities among the three tested enzymes in regard to the choice of added concentrations of fluorogenic substrates.
Jonathan V. Trueblood, Alessia Nicosia, Anja Engel, Birthe Zäncker, Matteo Rinaldi, Evelyn Freney, Melilotus Thyssen, Ingrid Obernosterer, Julie Dinasquet, Franco Belosi, Antonio Tovar-Sánchez, Araceli Rodriguez-Romero, Gianni Santachiara, Cécile Guieu, and Karine Sellegri
Atmos. Chem. Phys., 21, 4659–4676, https://doi.org/10.5194/acp-21-4659-2021, https://doi.org/10.5194/acp-21-4659-2021, 2021
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Sea spray aerosols (SSAs) can be an important source of ice-nucleating particles (INPs) that impact cloud properties over the oceans. In the Mediterranean Sea, we found that the INPs in the seawater surface microlayer increased by an order of magnitude after a rain dust event that impacted iron and bacterial abundances. The INP properties of SSA (INPSSA) increased after a 3 d delay. Outside this event, INPSSA could be parameterized as a function of the seawater biogeochemistry.
Emilio Marañón, France Van Wambeke, Julia Uitz, Emmanuel S. Boss, Céline Dimier, Julie Dinasquet, Anja Engel, Nils Haëntjens, María Pérez-Lorenzo, Vincent Taillandier, and Birthe Zäncker
Biogeosciences, 18, 1749–1767, https://doi.org/10.5194/bg-18-1749-2021, https://doi.org/10.5194/bg-18-1749-2021, 2021
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The concentration of chlorophyll is commonly used as an indicator of the abundance of photosynthetic plankton (phytoplankton) in lakes and oceans. Our study investigates why a deep chlorophyll maximum, located near the bottom of the upper, illuminated layer develops in the Mediterranean Sea. We find that the acclimation of cells to low light is the main mechanism involved and that this deep maximum represents also a maximum in the biomass and carbon fixation activity of phytoplankton.
Cited articles
Aminot, A. and Kérouel, R.: Dosage automatique des nutriments dans les
eaux marines : méthodes en flux continu, Editions Ifremer, méthodes
d'analyse en milieu marin, 188 pp., 2007.
Behrenfeld, M. J., O'Malley, R. T., Siegel, D. A., McClain, C. R.,
Sarmiento, J. L., Feldman, G. C., Milligan, A. J., Falkowski, P. G.,
Letelier, R. M., and Boss, E. S.: Climate-driven trends in contemporary
ocean productivity, Nature, 444, 752–755, 2006.
Bergametti, G., Dutot, A.-L., Buat-Ménard, P., Losno, R., and
Remoudaki, E.: Seasonal variability of the elemental composition of
atmospheric aerosol particles over the Northwestern Mediterranean, Tellus B,
41, 353–361, https://doi.org/10.3402/tellusb.v41i3.15092, 1989.
Bonnet, S., Guieu, C., Chiaverini, J., Ras, J., and Stock, A.: Effect of
atmospheric nutrients on the autotrophic communities in a low nutrient, low
chlorophyll system, Limnol. Oceanogr., 50, 1810–1819,
https://doi.org/10.4319/lo.2005.50.6.1810, 2005.
Bonnet, S. and Guieu, C.: Atmospheric forcing on the annual iron cycle in
the western Mediterranean Sea: A 1-year survey, J. Geophys. Res-Oceans, 111, C09010,
https://doi.org/10.1029/2005JC003213, 2006.
Børsheim, K. Y. and Bratbak, G.: Cell volume to cell carbon conversion
factors for a bacterivorous Monas sp. enriched from seawater, Mar. Ecol.-Prog. Ser.,
36, 171–175, 1987.
Bosc, E., Bricaud, A., and Antoine, D.: Seasonal and interannual variability
in algal biomass and primary production in the Mediterranean Sea, as derived
from 4 years of SeaWiFS observations, Global Biogeochem. Cy., 18, GB1005,
https://doi.org/10.1029/2003GB002034, 2004.
Bressac, M. and Guieu, C.: Post-depositional processes: What really happens
to new atmospheric iron in the ocean's surface?, Global Biogeochem. Cy., 27,
859–870, https://doi.org/10.1002/gbc.20076, 2013.
Bressac, M., Guieu, C., Doxaran, D., Bourrin, F., Desboeufs, K., Leblond, N., and Ridame, C.: Quantification of the lithogenic carbon pump following a simulated dust-deposition event in large mesocosms, Biogeosciences, 11, 1007–1020, https://doi.org/10.5194/bg-11-1007-2014, 2014.
Bressac, M., Wagener, T., Leblond, N., Tovar-Sánchez, A., Ridame, C., Albani, S., Guasco, S., Dufour, A., Jacquet, S., Dulac, F., Desboeufs, K., and Guieu, C.: Subsurface iron accumulation and rapid aluminium removal in the Mediterranean following African dust deposition, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2021-87, in review, 2021.
Chen, B., Liu, H., Huang, B., and Wang, J.: Temperature effects on the
growth rate of marine picoplankton, Mar. Ecol.-Prog. Ser., 505, 37–47,
https://doi.org/10.3354/meps10773, 2014.
Christaki, U., Courties, C., Massana, R., Catala, P., Lebaron, P., Gasol, J.
M., and Zubkov, M. V.: Optimized routine flow cytometric enumeration of
heterotrophic flagellates using SYBR Green I, Limnol. Oceanogr.-Meth., 9,
329–339, https://doi.org/10.4319/lom.2011.9.329, 2011.
Daufresne, M., Lengfellner, K., and Sommer, U.: Global warming benefits the
small in aquatic ecosystems, P. Natl. Acad. Sci. USA, 106, 12788–12793,
https://doi.org/10.1073/pnas.0902080106, 2009.
Desboeufs, K., Leblond, N., Wagener, T., Bon Nguyen, E., and Guieu, C.: Chemical fate and settling of mineral dust in surface seawater after atmospheric deposition observed from dust seeding experiments in large mesocosms, Biogeosciences, 11, 5581–5594, https://doi.org/10.5194/bg-11-5581-2014, 2014.
Desboeufs, K., Bon Nguyen, E., Chevaillier, S., Triquet, S., and Dulac, F.: Fluxes and sources of nutrient and trace metal atmospheric deposition in the northwestern Mediterranean, Atmos. Chem. Phys., 18, 14477–14492, https://doi.org/10.5194/acp-18-14477-2018, 2018.
Dickson, A. G., Sabine, C. L., and Christian, J. R.: Guide to best practices
for ocean CO2 measurements, PICES, Sydney, 191 pp., 2007.
Dinasquet, J., Bigeard, E., Gazeau, F., Azam, F., Guieu, C., Marañón, E., Ridame, C., Van Wambeke, F., Obernosterer, I., and Baudoux, A.-C.: Impact of dust addition on the microbial food web under present and future conditions of pH and temperature, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2021-143, in review, 2021.
Djaoudi, K., Van Wambeke, F., Coppola, L., D'Ortenzio, F., Helias-Nunige,
S., Raimbault, P., Taillandier, V., Testor, P., Wagener, T., and
Pulido-Villena, E.: Sensitive Determination of the Dissolved Phosphate Pool
for an Improved Resolution of Its Vertical Variability in the Surface Layer:
New Views in the P-Depleted Mediterranean Sea, Front. Mar. Sci., 5, 234,
https://doi.org/10.3389/fmars.2018.00234, 2018.
D'Ortenzio, F., Iudicone, D., Montegut, C. de B., Testor, P., Antoine, D.,
Marullo, S., Santoleri, R., and Madec, G.: Seasonal variability of the mixed
layer depth in the Mediterranean Sea as derived from in situ profiles,
Geophys. Res. Lett., 32, L12605, https://doi.org/10.1029/2005GL022463, 2005.
Duce, R. A., Liss, P. S., Merrill, J. T., Atlas, E. L., Buat-Menard, P.,
Hicks, B. B., Miller, J. M., Prospero, J. M., Arimoto, R., Church, T. M.,
Ellis, W., Galloway, J. N., Hansen, L., Jickells, T. D., Knap, A. H.,
Reinhardt, K. H., Schneider, B., Soudine, A., Tokos, J. J., Tsunogai, S.,
Wollast, R., and Zhou, M.: The atmospheric input of trace species to the
world ocean, Global Biogeochem. Cy., 5, 193–259,
https://doi.org/10.1029/91GB01778, 1991.
Dutkiewicz, S., Morris, J. J., Follows, M. J., Scott, J., Levitan, O.,
Dyhrman, S. T., and Berman-Frank, I.: Impact of ocean acidification on the
structure of future phytoplankton communities, Nat. Clim. Change, 5,
1002–1006, https://doi.org/10.1038/nclimate2722, 2015.
Eggers, S. L., Lewandowska, A. M., e Ramos, J. B., Blanco‐Ameijeiras, S., Gallo, F., and Matthiessen, B.: Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification, Glob. Change Biol., 20, 713–723, https://doi.org/10.1111/gcb.12421, 2014.
Emerson, S., Quay, P., Karl, D., Winn, C., Tupas, L., and Landry, M.:
Experimental determination of the organic carbon flux from open-ocean
surface waters, Nature, 389, 951–954, https://doi.org/10.1038/40111, 1997.
Falkovich, A. H., Ganor, E., Levin, Z., Formenti, P., and Rudich, Y.:
Chemical and mineralogical analysis of individual mineral dust particles, J.
Geophys. Res.-Atmos., 106, 18029–18036,
https://doi.org/10.1029/2000JD900430, 2001.
Feliú, G., Pagano, M., Hidalgo, P., and Carlotti, F.: Structure and function of epipelagic mesozooplankton and their response to dust deposition events during the spring PEACETIME cruise in the Mediterranean Sea, Biogeosciences, 17, 5417–5441, https://doi.org/10.5194/bg-17-5417-2020, 2020.
Gazeau, F., Van Wambeke, F., Marañón, E., Pérez-Lorenzo, M., Alliouane, S., Stolpe, C., Blasco, T., Leblond, N., Zäncker, B., Engel, A., Marie, B., Dinasquet, J., and Guieu, C.: Impact of dust addition on the metabolism of Mediterranean plankton communities and carbon export under present and future conditions of pH and temperature, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2021-20, in review, 2021.
Gorsky, G., Ohman, M. D., Picheral, M., Gasparini, S., Stemmann, L.,
Romagnan, J.-B., Cawood, A., Pesant, S., García-Comas, C., and Prejger,
F.: Digital zooplankton image analysis using the ZooScan integrated system,
J. Plankton Res., 32, 285–303, https://doi.org/10.1093/plankt/fbp124, 2010.
Guieu, C. and Ridame, C.: Impact of atmospheric deposition on marine
chemistry and biogeochemistry, in: Atmospheric Chemistry in the
Mediterranean Region: Comprehensive Diagnosis and Impacts, edited by: Dulac,
F., Sauvage, S., and Hamonou, E., Springer, Cham, Switzerland, 2020.
Guieu, C., Dulac, F., Desboeufs, K., Wagener, T., Pulido-Villena, E., Grisoni, J.-M., Louis, F., Ridame, C., Blain, S., Brunet, C., Bon Nguyen, E., Tran, S., Labiadh, M., and Dominici, J.-M.: Large clean mesocosms and simulated dust deposition: a new methodology to investigate responses of marine oligotrophic ecosystems to atmospheric inputs, Biogeosciences, 7, 2765–2784, https://doi.org/10.5194/bg-7-2765-2010, 2010a.
Guieu, C., Loye-Pilot, M. D., Benyahya, L., and Dufour, A.: Spatial
variability of atmospheric fluxes of metals (Al, Fe, Cd, Zn and Pb) and
phosphorus over the whole Mediterranean from a one-year monitoring
experiment: Biogeochemical implications, Mar. Chem., 120, 164–178,
https://doi.org/10.1016/j.marchem.2009.02.004, 2010b.
Guieu, C., Ridame, C., Pulido-Villena, E., Bressac, M., Desboeufs, K., and Dulac, F.: Impact of dust deposition on carbon budget: a tentative assessment from a mesocosm approach, Biogeosciences, 11, 5621–5635, https://doi.org/10.5194/bg-11-5621-2014, 2014a.
Guieu, C., Aumont, O., Paytan, A., Bopp, L., Law, C. S., Mahowald, N.,
Achterberg, E. P., Marañón, E., Salihoglu, B., Crise, A., Wagener,
T., Herut, B., Desboeufs, K., Kanakidou, M., Olgun, N., Peters, F.,
Pulido-Villena, E., Tovar-Sanchez, A., and Völker, C.: The significance
of the episodic nature of atmospheric deposition to Low Nutrient Low
Chlorophyll regions, Global Biogeochem. Cy., 28, 1179–1198,
https://doi.org/10.1002/2014GB004852, 2014b.
Guieu, C., D'Ortenzio, F., Dulac, F., Taillandier, V., Doglioli, A., Petrenko, A., Barrillon, S., Mallet, M., Nabat, P., and Desboeufs, K.: Introduction: Process studies at the air–sea interface after atmospheric deposition in the Mediterranean Sea – objectives and strategy of the PEACETIME oceanographic campaign (May–June 2017), Biogeosciences, 17, 5563–5585, https://doi.org/10.5194/bg-17-5563-2020, 2020a.
Guieu, C., Desboeufs, K., Albani, S., Alliouane, S., Aumont, O., Barbieux, M., Barrillon, S., Baudoux, A.-C., Berline, L., Bhairy, N., Bigeard. E., Bloss, M., Bressac, M., Brito, J., Carlotti, F., de Liege, G., Dinasquet, J., Djaoudi, K., Doglioli, A., D'Ortenzio, F., Doussin, J.-F., Duforet, L., Dulac, F., Dutay, J.-C., Engel, A., Feliu-Brito, G., Ferre, H., Formenti, P., Fu, F., Garcia, D., Garel, D., Gazeau, F., Giorio, C., Gregori, G., Grisoni, J.-M., Guasco, S., Guittonneau, J., Haëntjens, N., Heimburger, L.-E., Helias, S., Jacquet, S., Laurent, B., Leblond, N., Lefevre, D., Mallet , M., Marañón, E., Nabat, P., Nicosia, A., Obernosterer, I., Perez, L., M., Petrenko, A., Pulido-Villena, E., Raimbault, P., Ridame, C., Riffault, V., Rougier, G., Rousselet, L., Roy-Barman, M., Saiz-Lopez, A., Schmechtig, C., Sellegri, K., Siour, G., Taillandier, V., Tamburini , C., Thyssen, M., Tovar-Sanchez, A., Triquet, S., Uitz, J., Van Wambeke, F., Wagener, T., and Zaencker, B.: Biogeochemical dataset collected during the PEACETIME cruise, SEANOE [data set], https://doi.org/10.17882/75747, 2020b.
Herut, B., Zohary, T., Krom, M. D., Mantoura, R. F. C., Pitta, P., Psarra,
S., Rassoulzadegan, F., Tanaka, T., and Frede Thingstad, T.: Response of
East Mediterranean surface water to Saharan dust: On-board microcosm
experiment and field observations, Deep-Sea Res. Pt. II, 52, 3024–3040,
https://doi.org/10.1016/j.dsr2.2005.09.003, 2005.
Holmes, R. M., Aminot, A., Kérouel, R., Hooker, B. A., and Peterson, B.
J.: A simple and precise method for measuring ammonium in marine and
freshwater ecosystems, Can. J. Fish. Aquat. Sci., 56, 1801–1808,
https://doi.org/10.1139/f99-128, 1999.
IPCC: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 1535 pp., 2013.
IPCC: IPCC Special Report on the Ocean and Cryosphere in a Changing Climate, edited by: Pörtner, H.-O., Roberts, D. C., Masson-Delmotte, V., Zhai, P., Tignor, M., Poloczanska, E., Mintenbeck, K., Alegría, A., Nicolai, M., Okem, A., Petzold, J., Rama, B., and Weyer, N. M., in press, 2019.
Irwin, A. J. and Oliver, M. J.: Are ocean deserts getting larger?, Geophys.
Res. Lett., 36, L18609, https://doi.org/10.1029/2009gl039883, 2009.
Jickells, T. D., An, Z. S., Andersen, K. K., Baker, A. R., Bergametti, G.,
Brooks, N., Cao, J. J., Boyd, P. W., Duce, R. A., Hunter, K. A., Kawahata,
H., Kubilay, N., laRoche, J., Liss, P. S., Mahowald, N., Prospero, J. M.,
Ridgwell, A. J., Tegen, I., and Torres, R.: Global Iron Connections Between
Desert Dust, Ocean Biogeochemistry, and Climate, Science, 308, 67–71,
https://doi.org/10.1126/science.1105959, 2005.
Kana, T. M. and Glibert, P. M.: Effect of irradiances up to 2000 µE m−2 s−1 on marine Synechococcus WH7803—I. Growth, pigmentation, and cell
composition, Deep-Sea Res., 34, 479–495,
https://doi.org/10.1016/0198-0149(87)90001-X, 1987.
Kapsenberg, L., Alliouane, S., Gazeau, F., Mousseau, L., and Gattuso, J.-P.: Coastal ocean acidification and increasing total alkalinity in the northwestern Mediterranean Sea, Ocean Sci., 13, 411–426, https://doi.org/10.5194/os-13-411-2017, 2017.
Kouvarakis, G., Mihalopoulos, N., Tselepides, A., and Stavrakakis, S.: On
the importance of atmospheric inputs of inorganic nitrogen species on the
productivity of the Eastern Mediterranean Sea, Global Biogeochem. Cy., 15,
805–817, https://doi.org/10.1029/2001GB001399, 2001.
Lagaria, A., Mandalakis, M., Mara, P., Papageorgiou, N., Pitta, P., Tsiola,
A., Kagiorgi, M., and Psarra, S.: Phytoplankton response to Saharan dust
depositions in the Eastern Mediterranean Sea: A mesocosm study, Front. Mar.
Sci., 3, 287, https://doi.org/10.3389/fmars.2016.00287, 2017.
Law, C. S., Brévière, E., de Leeuw, G., Garçon, V., Guieu, C.,
Kieber, D. J., Kontradowitz, S., Paulmier, A., Quinn, P. K., Saltzman, E.
S., Stefels, J., and von Glasow, R.: Evolving research directions in Surface
Ocean – Lower Atmosphere (SOLAS) science, Environ. Chem., 10, 1–16,
https://doi.org/10.1071/EN12159, 2013.
Lee, S. and Fuhrman, J. A.: Relationships between Biovolume and Biomass of
Naturally Derived Marine Bacterioplankton, Appl. Environ. Microb., 53,
1298–1303, 1987.
Lekunberri, I., Lefort, T., Romero, E., Vázquez-Domínguez, E.,
Romera-Castillo, C., Marrasé, C., Peters, F., Weinbauer, M., and Gasol,
J. M.: Effects of a dust deposition event on coastal marine microbial
abundance and activity, bacterial community structure and ecosystem
function, J. Plankton Res., 32, 381–396,
https://doi.org/10.1093/plankt/fbp137, 2010.
Liu, X., Patsavas, M. C., and Byrne, R. H.: Purification and
Characterization of meta-Cresol Purple for Spectrophotometric Seawater pH
Measurements, Environ. Sci. Technol., 45, 4862–4868,
https://doi.org/10.1021/es200665d, 2011.
Longhurst, A., Sathyendranath, S., Platt, T., and Caverhill, C.: An estimate
of global primary production in the ocean from satellite radiometer data, J.
Plankton Res., 17, 1245–1271, https://doi.org/10.1093/plankt/17.6.1245,
1995.
López-Urrutia, A. and Morán, X. A. G.: Resource limitation of
bacterial production distorts the temperature dependence of oceanic carbon
cycling, Ecology, 88, 817–822, https://doi.org/10.1890/06-1641, 2007.
Louis, J., Pedrotti, M. L., Gazeau, F., and Guieu, C.: Experimental evidence
of formation of transparent exopolymer particles (TEP) and POC export
provoked by dust addition under current and high pCO2 conditions, PLOS
ONE, 12, e0171980, https://doi.org/10.1371/journal.pone.0171980, 2017a.
Louis, J., Guieu, C., and Gazeau, F.: Nutrient dynamics under different
ocean acidification scenarios in a low nutrient low chlorophyll system: The
Northwestern Mediterranean Sea, Estuar. Coast. Shelf S., 186, 30–44,
https://doi.org/10.1016/j.ecss.2016.01.015, 2017b.
Louis, J., Gazeau, F., and Guieu, C.: Atmospheric nutrients in seawater
under current and high pCO2 conditions after Saharan dust deposition:
Results from three minicosm experiments, Prog. Oceanogr., 163, 40–49,
https://doi.org/10.1016/j.pocean.2017.10.011, 2018.
Loÿe-Pilot, M. D. and Martin, J. M.: Saharan Dust Input to the Western
Mediterranean: An Eleven Years Record in Corsica, in: The Impact of Desert
Dust Across the Mediterranean, edited by: Guerzoni, S. and Chester, R.,
Springer Netherlands, Dordrecht, 191–199,
https://doi.org/10.1007/978-94-017-3354-0_18, 1996.
Manca, B., Burca, M., Giorgetti, A., Coatanoan, C., Garcia, M.-J., and Iona,
A.: Physical and biochemical averaged vertical profiles in the Mediterranean
regions: an important tool to trace the climatology of water masses and to
validate incoming data from operational oceanography, J. Marine Syst., 48,
83–116, https://doi.org/10.1016/j.jmarsys.2003.11.025, 2004.
Marañón, E., Fernández, A., Mouriño-Carballido, B.,
MartÍnez-GarcÍa, S., Teira, E., Cermeño, P., Chouciño, P.,
Huete-Ortega, M., Fernández, E., Calvo-DÍaz, A., Morán, X. A.
G., Bode, A., Moreno-Ostos, E., Varela, M. M., Patey, M. D., and Achterberg,
E. P.: Degree of oligotrophy controls the response of microbial plankton to
Saharan dust, Limnol. Oceanogr., 55, 2339–2352,
https://doi.org/10.4319/lo.2010.55.6.2339, 2010.
Marañón, E., Lorenzo, M. P., Cermeño, P., and
Mouriño-Carballido, B.: Nutrient limitation suppresses the temperature
dependence of phytoplankton metabolic rates, ISME J., 12, 1836–1845,
https://doi.org/10.1038/s41396-018-0105-1, 2018.
Marie, D., Simon, N., Guillou, L., Partensky, F., and Vaulot, D.: Flow
cytometry analysis of marine picoplankton, in: living color: protocols in
flow cytometry and cell sorting, edited by: Diamond, R. A. and DeMaggio, S.,
Springer, Berlin, 421–454, 2010.
Markaki, Z., Oikonomou, K., Kocak, M., Kouvarakis, G., Chaniotaki, A.,
Kubilay, N., and Mihalopoulos, N.: Atmospheric deposition of inorganic
phosphorus in the Levantine Basin, eastern Mediterranean: Spatial and
temporal variability and its role in seawater productivity, Limnol.
Oceanogr., 48, 1557–1568, https://doi.org/10.4319/lo.2003.48.4.1557, 2003.
Maugendre, L., Gattuso, J.-P., Louis, J., de Kluijver, A., Marro, S.,
Soetaert, K., and Gazeau, F.: Effect of ocean warming and acidification on a
plankton community in the NW Mediterranean Sea, ICES J. Mar. Sci., 72, 1744–1755,
https://doi.org/10.1093/icesjms/fsu161, 2015.
Maugendre, L., Guieu, C., Gattuso, J.-P., and Gazeau, F.: Ocean
acidification in the Mediterranean Sea: Pelagic mesocosm experiments. A
synthesis, Estuar. Coast. Shelf S., 186, 1–10,
https://doi.org/10.1016/j.ecss.2017.01.006, 2017.
Mayot, N., D'Ortenzio, F., Ribera d'Alcalà, M., Lavigne, H., and Claustre, H.: Interannual variability of the Mediterranean trophic regimes from ocean color satellites, Biogeosciences, 13, 1901–1917, https://doi.org/10.5194/bg-13-1901-2016, 2016.
Mélançon, J., Levasseur, M., Lizotte, M., Scarratt, M., Tremblay, J.-É., Tortell, P., Yang, G.-P., Shi, G.-Y., Gao, H., Semeniuk, D., Robert, M., Arychuk, M., Johnson, K., Sutherland, N., Davelaar, M., Nemcek, N., Peña, A., and Richardson, W.: Impact of ocean acidification on phytoplankton assemblage, growth, and DMS production following Fe-dust additions in the NE Pacific high-nutrient, low-chlorophyll waters, Biogeosciences, 13, 1677–1692, https://doi.org/10.5194/bg-13-1677-2016, 2016.
Moore, C. M., Mills, M. M., Arrigo, K. R., Berman-Frank, I., Bopp, L., Boyd,
P. W., Galbraith, E. D., Geider, R. J., Guieu, C., Jaccard, S. L., Jickells,
T. D., La Roche, J., Lenton, T. M., Mahowald, N. M., Marañón, E.,
Marinov, I., Moore, J. K., Nakatsuka, T., Oschlies, A., Saito, M. A.,
Thingstad, T. F., Tsuda, A., and Ulloa, O.: Processes and patterns of
oceanic nutrient limitation, Nat. Geosci., 6, 701–710,
https://doi.org/10.1038/ngeo1765, 2013.
Morán, X. A. G., López-Urrutia, Á., Calvo-Díaz, A., and Li,
W. K. W.: Increasing importance of small phytoplankton in a warmer ocean,
Glob. Change Biol., 16, 1137–1144,
https://doi.org/10.1111/j.1365-2486.2009.01960.x, 2010.
Neale, P. J., Sobrino, C., Segovia, M., Mercado, J. M., Leon, P.,
Cortés, M. D., Tuite, P., Picazo, A., Salles, S., Cabrerizo, M. J.,
Prasil, O., Montecino, V., Reul, A., and Fuentes-Lema, A.: Effect of CO2,
nutrients and light on coastal plankton. I. Abiotic conditions and
biological responses, Aquat. Biol., 22, 25–41,
https://doi.org/10.3354/ab00587, 2014.
Obernosterer, I., Kawasaki, N., and Benner, R.: P-limitation of respiration
in the Sargasso Sea and uncoupling of bacteria from P-regeneration in
size-fractionation experiments, Aquat. Microb. Ecol., 32, 229–237,
https://doi.org/10.3354/ame032229, 2003.
Orr, J. C., Epitalon, J.-M., Dickson, A. G., and Gattuso, J.-P.: Routine
uncertainty propagation for the marine carbon dioxide system, Mar. Chem., 207, 84–107,
https://doi.org/10.1016/j.marchem.2018.10.006, 2018.
Paytan, A., Mackey, K. R. M., Chen, Y., Lima, I. D., Doney, S. C., Mahowald,
N., Labiosa, R., and Post, A. F.: Toxicity of atmospheric aerosols on marine
phytoplankton, P. Natl. Acad. Sci. USA, 106, 4601–4605, https://doi.org/10.1073/pnas.0811486106,
2009.
Pitta, P., Kanakidou, M., Mihalopoulos, N., Christodoulaki, S., Dimitriou,
P. D., Frangoulis, C., Giannakourou, A., Kagiorgi, M., Lagaria, A.,
Nikolaou, P., Papageorgiou, N., Psarra, S., Santi, I., Tsapakis, M., Tsiola,
A., Violaki, K., and Petihakis, G.: Saharan Dust Deposition Effects on the
Microbial Food Web in the Eastern Mediterranean: A Study Based on a Mesocosm
Experiment, Front. Mar. Sci., 4, 117, https://doi.org/10.3389/fmars.2017.00117,
2017.
Polovina, J. J., Howell, E. A., and Abecassis, M.: Ocean's least productive
waters are expanding, Geophys. Res. Lett., 35, L03618, https://doi.org/10.1029/2007gl031745, 2008.
Powley, H. R., Krom, M. D., and Cappellen, P. V.: Understanding the unique
biogeochemistry of the Mediterranean Sea: Insights from a coupled phosphorus
and nitrogen model, Global Biogeochem. Cy., 31, 1010–1031,
https://doi.org/10.1002/2017GB005648, 2017.
Pulido-Villena, E., Wagener, T., and Guieu, C.: Bacterial response to dust
pulses in the western Mediterranean: Implications for carbon cycling in the
oligotrophic ocean, Global Biogeochem. Cy., 22, GB1020, https://doi.org/10.1029/2007gb003091, 2008.
Pulido-Villena, E., Rerolle, V., and Guieu, C.: Transient fertilizing effect
of dust in P-deficient LNLC surface ocean, Geophys. Res. Lett., 37, L01603,
https://doi.org/10.1029/2009gl041415, 2010.
Pulido-Villena, E., Baudoux, A.-C., Obernosterer, I., Landa, M., Caparros, J., Catala, P., Georges, C., Harmand, J., and Guieu, C.: Microbial food web dynamics in response to a Saharan dust event: results from a mesocosm study in the oligotrophic Mediterranean Sea, Biogeosciences, 11, 5607–5619, https://doi.org/10.5194/bg-11-5607-2014, 2014.
Putaud, J.-P., Van Dingenen, R., Dell'Acqua, A., Raes, F., Matta, E., Decesari, S., Facchini, M. C., and Fuzzi, S.: Size-segregated aerosol mass closure and chemical composition in Monte Cimone (I) during MINATROC, Atmos. Chem. Phys., 4, 889–902, https://doi.org/10.5194/acp-4-889-2004, 2004.
Ras, J., Claustre, H., and Uitz, J.: Spatial variability of phytoplankton pigment distributions in the Subtropical South Pacific Ocean: comparison between in situ and predicted data, Biogeosciences, 5, 353–369, https://doi.org/10.5194/bg-5-353-2008, 2008.
Regaudie-de-Gioux, A., Vaquer-Sunyer, R., and Duarte, C. M.: Patterns in planktonic metabolism in the Mediterranean Sea, Biogeosciences, 6, 3081–3089, https://doi.org/10.5194/bg-6-3081-2009, 2009.
Richon, C., Dutay, J.-C., Dulac, F., Wang, R., Balkanski, Y., Nabat, P.,
Aumont, O., Desboeufs, K., Laurent, B., Guieu, C., Raimbault, P., and
Beuvier, J.: Modeling the impacts of atmospheric deposition of nitrogen and
desert dust-derived phosphorus on nutrients and biological budgets of the
Mediterranean Sea, Prog. Oceanogr., 163, 21–39,
https://doi.org/10.1016/j.pocean.2017.04.009, 2018.
Ridame, C. and Guieu, C.: Saharan input of phosphate to the oligotrophic
water of the open western Mediterranean Sea, Limnol. Oceanogr. , 47, 856–869, 2002.
Ridame, C., Guieu, C., and L'Helguen, S.: Strong stimulation of N2 fixation in oligotrophic Mediterranean Sea: results from dust addition in large in situ mesocosms, Biogeosciences, 10, 7333–7346, https://doi.org/10.5194/bg-10-7333-2013, 2013.
Ridame, C., Dekaezemacker, J., Guieu, C., Bonnet, S., L'Helguen, S., and Malien, F.: Contrasted Saharan dust events in LNLC environments: impact on nutrient dynamics and primary production, Biogeosciences, 11, 4783–4800, https://doi.org/10.5194/bg-11-4783-2014, 2014.
Ridame, C., Dinasquet, J., Hallstrøm, S., Bigeard, E., Riemann, L., Van Wambeke, F., Bressac, M., Pulido-Villena, E., Taillandier, V., Gazeau, F., Tover-Sanchez, A., Baudoux, A.-C., and Guieu, C.: N2 fixation in the Mediterranean Sea related to the composition of the diazotrophic community, and impact of dust under present and future environmental conditions, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2021-190, in review, 2021.
Romero, E., Peters, F., Marrasé, C., Guadayol, Ò., Gasol, J. M., and
Weinbauer, M. G.: Coastal Mediterranean plankton stimulation dynamics
through a dust storm event: An experimental simulation, Estuar. Coast. Shelf
S., 93, 27–39, https://doi.org/10.1016/j.ecss.2011.03.019, 2011.
Roy-Barman, M., Foliot, L., Douville, E., Leblond, N., Gazeau, F., Bressac, M., Wagener, T., Ridame, C., Desboeufs, K., and Guieu, C.: Contrasted release of insoluble elements (Fe, Al, rare earth elements, Th, Pa) after dust deposition in seawater: a tank experiment approach, Biogeosciences, 18, 2663–2678, https://doi.org/10.5194/bg-18-2663-2021, 2021.
Sala, M. M., Aparicio, F. L., Balagué, V., Boras, J. A., Borrull, E.,
Cardelús, C., Cros, L., Gomes, A., López-Sanz, A., Malits, A.,
Martínez, R. A., Mestre, M., Movilla, J., Sarmento, H.,
Vázquez-Domínguez, E., Vaqué, D., Pinhassi, J., Calbet, A.,
Calvo, E., Gasol, J. M., Pelejero, C., and Marrasé, C.: Contrasting
effects of ocean acidification on the microbial food web under different
trophic conditions, ICES J. Mar. Sci., 73, 670–679,
https://doi.org/10.1093/icesjms/fsv130, 2016.
Sherr, E. B. and Sherr, B. F.: Bacterivory and herbivory: Key roles of
phagotrophic protists in pelagic food webs, Microb. Ecol., 28, 223–235,
https://doi.org/10.1007/BF00166812, 1994.
Siokou-Frangou, I., Christaki, U., Mazzocchi, M. G., Montresor, M., Ribera d'Alcalá, M., Vaqué, D., and Zingone, A.: Plankton in the open Mediterranean Sea: a review, Biogeosciences, 7, 1543–1586, https://doi.org/10.5194/bg-7-1543-2010, 2010.
Tanaka, T., Thingstad, T. F., Christaki, U., Colombet, J., Cornet-Barthaux, V., Courties, C., Grattepanche, J.-D., Lagaria, A., Nedoma, J., Oriol, L., Psarra, S., Pujo-Pay, M., and Van Wambeke, F.: Lack of P-limitation of phytoplankton and heterotrophic prokaryotes in surface waters of three anticyclonic eddies in the stratified Mediterranean Sea, Biogeosciences, 8, 525–538, https://doi.org/10.5194/bg-8-525-2011, 2011.
Ternon, E., Guieu, C., Loÿe-Pilot, M.-D., Leblond, N., Bosc, E., Gasser, B., Miquel, J.-C., and Martín, J.: The impact of Saharan dust on the particulate export in the water column of the North Western Mediterranean Sea, Biogeosciences, 7, 809–826, https://doi.org/10.5194/bg-7-809-2010, 2010.
The Mermex group: Marine ecosystems' responses to climatic and anthropogenic
forcings in the Mediterranean, Prog. Oceanogr., 91, 97–166,
https://doi.org/10.1016/j.pocean.2011.02.003, 2011.
Theodosi, C., Markaki, Z., Tselepides, A., and Mihalopoulos, N.: The
significance of atmospheric inputs of soluble and particulate major and
trace metals to the eastern Mediterranean seawater, Mar. Chem., 120,
154–163, https://doi.org/10.1016/j.marchem.2010.02.003, 2010.
Van Wambeke, F., Goutx, M., Striby, L., Sempéré, R., and Vidussi,
F.: Bacterial dynamics during the transition from spring bloom to
oligotrophy in the northwestern Mediterranean Sea: relationships with
particulate detritus and dissolved organic matter, Mar. Ecol.-Prog. Ser., 212, 89–105, 2001.
Van Wambeke, F., Taillandier, V., Deboeufs, K., Pulido-Villena, E., Dinasquet, J., Engel, A., Marañón, E., Ridame, C., and Guieu, C.: Influence of atmospheric deposition on biogeochemical cycles in an oligotrophic ocean system, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2020-411, in review, 2020.
Van Wambeke, F., Pulido, E., Catala, P., Dinasquet, J., Djaoudi, K., Engel, A., Garel, M., Guasco, S., Marie, B., Nunige, S., Taillandier, V., Zäncker, B., and Tamburini, C.: Spatial patterns of ectoenzymatic kinetics in relation to biogeochemical properties in the Mediterranean Sea and the concentration of the fluorogenic substrate used, Biogeosciences, 18, 2301–2323, https://doi.org/10.5194/bg-18-2301-2021, 2021.
Verity, P. G., Robertson, C. Y., Tronzo, C. R., Andrews, M. G., Nelson, J.
R., and Sieracki, M. E.: Relationships between cell volume and the carbon
and nitrogen content of marine photosynthetic nanoplankton, Limnol.
Oceanogr., 37, 1434–1446, https://doi.org/10.4319/lo.1992.37.7.1434, 1992.
Vidussi, F., Claustre, H., Manca, B. B., Luchetta, A., and Marty, J.-C.:
Phytoplankton pigment distribution in relation to upper thermocline
circulation in the eastern Mediterranean Sea during winter, J. Geophys.
Res.-Oceans, 106, 19939–19956, https://doi.org/10.1029/1999JC000308, 2001.
Short summary
This paper shows that the impacts of Saharan dust deposition in different Mediterranean basins are as strong as those observed in coastal waters but differed substantially between the three tested stations, differences attributed to variable initial metabolic states. A stronger impact of warming and acidification on mineralization suggests a decreased capacity of Mediterranean surface communities to sequester CO2 following the deposition of atmospheric particles in the coming decades.
This paper shows that the impacts of Saharan dust deposition in different Mediterranean basins...
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