SWINGS

Type Oceanographic cruise
Ship Marion Dufresne
Ship owner TAAF
Dates 13/01/2021 - 08/03/2021
Chief scientist(s) JEANDEL Catherine ORCID, PLANQUETTE Hélène ORCID

LABORATOIRE D'ETUDES EN GÉOPHYSIQUE ET OCÉANOGRAPHIE SPATIALES - UMR 5566

14 avenue Edouard Belin

31400 Toulouse

+33 (0)5 61 33 47 13

https://www.legos.omp.eu/

DOI 10.17600/18001925
Objective

The ocean's ability to absorb carbon dioxide depends on its chemical status and biological health. One of the major and expected consequences of climate change is to modify, in addition to stratification (and therefore light penetration), the nutrient inputs to the ocean, chemical speciation and the ability of biological species to assimilate them. These changes will be particularly pronounced in the Southern Ocean (IPCC, 2014). The term "nutrients" today systematically includes trace elements such as Fe, Zn, Cu, Cd, Co, Ni that are all involved as coenzymes in cellular processes. These elements thus play a major role in the ocean but are present at very low concentrations. Studying their cycles has direct implications for many scientific studies, such as the carbon cycle, climate change, ocean ecosystems, and environmental contamination. The very recent advances in analytical techniques have allowed us to make substantial improvement in understanding the important properties of trace elements in the ocean. In addition, other trace elements are recognized tracers of processes such as the origin and transformation of matter (and / or water bodies) or the dynamics of marine particles. Others are notorious contaminants (eg Hg, Pb). The SWINGS project is based on an oceanographic section in the southern sector of the southwest Indian Ocean. This region is particularly crucial because it plays a major role in climate control and is highly sensitive to the global changes and still little explored due to its remoteness.

Carrying out the 54-day SWINGS campaign in the South West Indian Ocean, which is essentially southern, will allow us to:

  • Establish the distribution, behavior and transport of trace elements and isotopes (TEIs) within the water bodies identified along the section between La Réunion, Marion Islands, Crozet, Kerguelen to the south of Heard to connect with the Australian section K-Axis.
  • Conduct process studies at the "continent-ocean" interface in the Bay of Natal and their potential influence on Alguhlas current
  • Explore the possible presence of active hydrothermal vents at 44 ° S along the ultra-slow South West Indian Ridge, then near Marion Island and finally in the Kerguelen-Heard region.
  • Contribute to the documentation of carbonate chemistry and air-sea CO2 exchange along a section characterized by contrasting biological assemblages.
  • Solve the signature of the dynamic processes at medium and regional scale (e.g . interactions between the Alghulas current and under current, frontal zones)
  • Re-occupy key stations in the naturally fertilized areas of Crozet and Kerguelen and document the natural fertilization mechanisms at Marion-Prince Edward islands.

Sampling equipment, analyses on board and on shore, and the associated modelling effort are based on state-of-the-art technologies. The originality of this project lies in its interdisciplinarity, which will involve geologists, physicists, chemists and biologists. Observations will feed high-resolution models developed for these regions. SWINGS is supported by an important network of international collaborations with colleagues from South Africa (UCT, CSIR, Stellenbosh), Germany (MPI), Belgium (ULB), Switzerland (ETH) and USA (WHOI, FSU, University of Washington, FIU, Duke University), SWINGS will be the 3rd French contribution to the international GEOTRACES program and fulfills the objectives of the SOLAS, IMBER and INTERRIDGE programs.

Published data

Planquette Helene, Barut Guillaume, Baudet Corentin, Belhadj Moustafa, Benito Lea, Berthelot Hugo, Blain Stéphane, Cardinal Damien, Cassar Nicolas, Cassou Christophe, Chowdhury Subhadeep, Clerc Corentin, Cotard Edwin, Cotté Cedric, de Saint Léger Emmanuel, Deteix Valentin, D'Ovidio Francesco, Fawcett Sarah, Fin Jonathan, Forrer Heather, Fourquez Marion, Gadegaonkar Sharvari Sunil, Gest Léa, Goddard-Dwyer Millie, Gonzalez Santana David, Gueneugues Audrey, Hamelin Bruno, Heimbürger-Boavida Lars-Eric, Izard Lloyd, Jacquet Stéphanie, Kestenare Elodie, Lacan Francois, Lagarde Marion, Landing William, Lemaitre Nolwenn, Leon Morgane, Le Roy Emilie, Leseurre Coraline, Liao Wen-Hsuan, Lo Monaco Claire, Lopes Christian, Mignon Claude, Obernosterer Ingrid, O' Sullivan Edel, Perault Fabien, Planchon Frederic, Ringard Antoine, Ryan Keogh Thomas, Sanial Virginie, Sarthou Géraldine, Saito Mak, Sergi Sara, Shiller Alan, Steiner Zvika, Torres-Rodriguez Natalia, Tréguer Gwendolyn, Turnbull Isobel, Van Beek Pieter, Vivier Frédéric, Vorrath Maria-Elena, Whitby Hannah, Zhang Rui (2024). BIOGEOCHEMICAL dataset collected during the SWINGS cruise. https://doi.org/10.17882/99983


Deteix Valentin, Cotard Edwin, Caquineau Sandrine, Landing William, Planchon Frederic, Ryan-Keogh Thomas, Cardinal Damien (2024). Biogenic and lithogenic silicon along the GEOTRACES South West Indian Ocean section (SWINGS-GS02). https://doi.org/10.17882/97947


Data managed by SISMER

Bibliography

Publications

Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Bombled Bruno, Boutin Jacqueline, Bozec Yann, Comeau Steeve, Conan Pascal, Coppola Laurent, Cuet Pascale, Ferreira Eva, Gattuso Jean-Pierre, Gazeau Frédéric, Goyet Catherine, Grossteffan Emilie, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Leseurre Coraline, Petton SébastienORCID, Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Rimmelin-Maury Peggy, Ternon Jean-Francois, Touratier Franck, Tribollet Aline, Wagener Thibaut, Wimart-Rousseau Cathy (2025). An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset. Earth System Science Data, 17(3), 1075-1100. Publisher's official version : https://doi.org/10.5194/essd-17-1075-2025 , Open Access version : https://archimer.ifremer.fr/doc/00943/105464/


Metzl Nicolas, Lo Monaco Claire, Barut Guillaume, Ternon Jean-Francois (2025). Contrasting trends of the ocean CO2 sink and pH in the Agulhas current system and the Mozambique Basin, South-Western Indian Ocean (1963-2023). Deep-sea Research Part Ii-topical Studies In Oceanography, 220, 105459 (13p.). https://doi.org/10.1016/j.dsr2.2025.105459


Dournaux Meredith, Tulet Pierre, Pianezze Joris, Brioude Jérome, Metzger Jean-Marc, Thyssen Melilotus. Origin, size distribution and hygroscopic properties of marine aerosols in the south-western Indian Ocean: report of 6 campaigns of shipborne observations. EGUsphere IN PRESS. Publisher's official version : https://doi.org/10.5194/egusphere-2024-3747 , Open Access version : https://archimer.ifremer.fr/doc/00931/104297/


Metzl Nicolas, Lo Monaco Claire, Leseurre Coraline, Ridame Céline, Reverdin Gilles, Chau Thi Tuyet Trang, Chevallier Frédéric, Gehlen Marion (2024). Anthropogenic CO2, air–sea CO2 fluxes, and acidification in the Southern Ocean: results from a time-series analysis at station OISO-KERFIX (51° S–68° E). Ocean Science, 20(3), 725-758. Publisher's official version : https://doi.org/10.5194/os-20-725-2024 , Open Access version : https://archimer.ifremer.fr/doc/00860/97159/


Chowdhury Subhadeep, Berthelot Hugo, Baudet Corentin, González-Santana David, Reeder Christian Furbo, L'Helguen Stéphane, Maguer Jean-François, Löscher Carolin R, Singh Arvind, Blain Stéphane, Cassar Nicolas, Bonnet Sophie, Planquette Helene, Benavides Mar (2024). Fronts divide diazotroph communities in the Southern Indian Ocean. Fems Microbiology Ecology, 100(8), fiae095 (13p.). Publisher's official version : https://doi.org/10.1093/femsec/fiae095 , Open Access version : https://archimer.ifremer.fr/doc/00900/101168/


Léon Morgane, Van Beek Pieter, Sanial Virginie, Baudet Corentin, Charette Matthew A., Souhaut Marc, Vivier Frédéric, Kestenare Elodie, Jeandel Catherine, Planquette Helene (2024). Investigation of hydrothermal activity in the South West Indian Ridge region using Ra isotopes and 227Ac as tracers. Progress In Oceanography, 221, 103191 (15p.). Publisher's official version : https://doi.org/10.1016/j.pocean.2023.103191 , Open Access version : https://archimer.ifremer.fr/doc/00868/98037/


Baudet Corentin, Bucciarelli Eva, Sarthou Geraldine, Boulart Cedric, Pelleter EwanORCID, Goddard-Dwyer Millie, Whitby Hannah, Zhang Rui, Obernosterer Ingrid, Gonzalez-Santana David, Léon Morgane, Van Beek Pieter, Sanial Virginie, Jeandel Catherine, Vivier Frédéric, Vorrath Maria-Elena, Liao Wen-Hsuan, Germain Yoan, Planquette Helene (2024). A hydrothermal plume on the Southwest Indian Ridge revealed by a multi-proxy approach: Impact on iron and manganese distributions (GEOTRACES GS02). Marine Chemistry, 265, 104401 (14p.). https://doi.org/10.1016/j.marchem.2024.104401


Zhang Rui, Blain Stéphane, Baudet Corentin, Planquette Helene, Vivier Frédéric, Catala Philippe, Crispi Olivier, Guéneuguès Audrey, Marie Barbara, Debeljak Pavla, Obernosterer Ingrid (2024). Tagging of water masses with covariance of trace metals and prokaryotic taxa in the Southern Ocean. Limnology And Oceanography Letters, 9(6), 776-784. Publisher's official version : https://doi.org/10.1002/lol2.10429 , Open Access version : https://archimer.ifremer.fr/doc/00880/99237/


Léon Morgane, Van Beek Pieter, Sanial Virginie, Souhaut Marc, Henderson Paul, Charette Matthew A. (2024). Comparison of methods to determine extraction efficiencies of Ra isotopes and 227Ac from large volume seawater samples. Marine Chemistry, 258, 104328 (12p.). Publisher's official version : https://doi.org/10.1016/j.marchem.2023.104328 , Open Access version : https://archimer.ifremer.fr/doc/00857/96893/


Jeandel Catherine (2024). The Value of Going To Sea on Big Ships and the Advantage of Multiple Tracers for GEOTRACES Style Programs. Perspective. Oceanography, 37(2), 17-20. Publisher's official version : https://doi.org/10.5670/oceanog.2024.408 , Open Access version : https://archimer.ifremer.fr/doc/00897/100909/


Deteix Valentin, Cotard Edwin, Caquineau Sandrine, Landing William M., Planchon Frederic, Ryan-Keogh Thomas, Cardinal Damien (2024). Biogenic and lithogenic silicon along the GEOTRACES south West Indian Ocean section (SWINGS-GS02) and the islands mass effect on regional Si biogeochemical cycle. Marine Chemistry, 263-264, 104412 (16p.). https://doi.org/10.1016/j.marchem.2024.104412


Tulet Pierre, Van Baelen Joel, Bosser Pierre, Brioude Jérome, Colomb Aurelie, Goloub Philippe, Pazmino Andrea, Portafaix Thierry, Ramonet Michel, Sellegri Karine, Thyssen Melilotus, Gest Lea, Marquestaut Nicolas, Mékiès Dominique, Metzger Jean-Marc, Athier Gilles, Blarel Luc, Delmotte Marc, Desprairies Guillaume, Dournaux Meredith, Dubois Gaël, Duflot Valentin, Lamy Kevin, Gardes Lionel, Guillemot Jean-François, Gros Valérie, Kolasinski Joanna, Lopez Morgan, Magand Olivier, Noury Erwan, Nunes-Pinharanda Manuel, Payen Guillaume, Pianezze Joris, Picard David, Picard Olivier, Prunier Sandrine, Rigaud-Louise François, Sicard Michael, Torres Benjamin (2024). MAP-IO, an atmospheric and marine observatory program onboard Marion Dufresne over the Southern Ocean. Earth System Science Data, 16(8), 3821-3849. Publisher's official version : https://doi.org/10.5194/essd-16-3821-2024 , Open Access version : https://archimer.ifremer.fr/doc/00879/99118/


Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Bombled Bruno, Boutin Jacqueline, Bozec Yann, Comeau Steeve, Conan Pascal, Coppola Laurent, Cuet Pascale, Ferreira Eva, Gattuso Jean-Pierre, Gazeau Frédéric, Goyet Catherine, Grossteffan Emilie, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Leseurre Coraline, Petton Sébastien, Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Rimmelin-Maury Peggy, Ternon Jean-François, Touratier Franck, Tribollet Aline, Wagener Thibaut, Wimart-Rousseau Cathy (2024). An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset.

Mascaut Faustine, Pujol Olivier, Brioude Jérôme, Jensen Andrew (2023). A 2D Ising-like model for cloud field organization in pristine oceans. European Physical Journal Plus, 138(1), 76 (14p.). https://doi.org/10.1140/epjp/s13360-022-03633-3


Marshall Tanya A., Sigman Daniel M., Beal Lisa M., Foreman Alan, Martínez‐garcía Alfredo, Blain Stéphane, Campbell Ethan, Fripiat François, Granger Robyn, Harris Eesaa, Haug Gerald H., Marconi Dario, Oleynik Sergey, Rafter Patrick A., Roman Raymond, Sinyanya Kolisa, Smart Sandi M., Fawcett Sarah E. (2023). The Agulhas Current Transports Signals of Local and Remote Indian Ocean Nitrogen Cycling. Journal of Geophysical Research: Oceans, 128(3), e2022JC019413 (29p.). Publisher's official version : https://doi.org/10.1029/2022JC019413 , Open Access version : https://archimer.ifremer.fr/doc/00948/105940/


Hayatte Akhoudas Camille, Sallée Jean-Baptiste, Reverdin Gilles, Haumann Alexander F., Pauthenet Etienne, Chapman Christopher, Margirier Félix, Lo Monaco Claire, Metzl Nicolas, Meilland Julie, Stranne Christian (2023). Isotopic evidence for an intensified hydrological cycle in the Indian sector of the Southern Ocean. Nature Communications, 14(1), 2763 (11p.). Publisher's official version : https://doi.org/10.1038/s41467-023-38425-5 , Open Access version : https://archimer.ifremer.fr/doc/00789/90144/


Liang Zhou, McCabe Kelly, Fawcett Sarah E., Forrer Heather J., Hashihama Fuminori, Jeandel Catherine, Marconi Dario, Planquette Helene, Saito Mak A., Sohm Jill A., Thomas Rachel K., Letscher Robert T., Knapp Angela N. (2022). A global ocean dissolved organic phosphorus concentration database (DOPv2021). Scientific Data, 9(1), 772 (9p.). Publisher's official version : https://doi.org/10.1038/s41597-022-01873-7 , Open Access version : https://archimer.ifremer.fr/doc/00813/92515/


Reverdin Gilles, Waelbroeck Claire, Pierre Catherine, Akhoudas Camille, Aloisi Giovanni, Benetti Marion, Bourlès Bernard, Danielsen Magnus, Demange Jérôme, Diverrès Denis, Gascard Jean-Claude, Houssais Marie-Noëlle, Le Goff Hervé, Lherminier PascaleORCID, Lo Monaco Claire, Mercier HerleORCID, Metzl Nicolas, Morisset Simon, Naamar Aïcha, Reynaud ThierryORCID, Sallée Jean-Baptiste, Thierry VirginieORCID, Hartman Susan E., Mawji Edward M., Olafsdottir Solveig, Kanzow Torsten, Velo Anton, Voelker Antje, Yashayaev Igor, Haumann Alexander, Leng Melanie J., Arrowsmith Carol, Meredith Michael (2022). The CISE-LOCEAN seawater isotopic database (1998–2021). Earth System Science Data, 14(6), 2721-2735. Publisher's official version : https://doi.org/10.5194/essd-14-2721-2022 , Open Access version : https://archimer.ifremer.fr/doc/00750/86197/


Fuchs Robin, Thyssen Melilotus, Creach Véronique, Dugenne Mathilde, Izard Lloyd, Latimier Marie, Louchart ArnaudORCID, Marrec Pierre, Rijkeboer Machteld, Grégori Gérald, Pommeret Denys (2022). Automatic recognition of flow cytometric phytoplankton functional groups using convolutional neural networks. Limnology And Oceanography-methods, 20(7), 387-399. Publisher's official version : https://doi.org/10.1002/lom3.10493 , Open Access version : https://archimer.ifremer.fr/doc/00775/88654/


References of Technical Reports

Jeandel Catherine, Planquette Helene (2021). SWINGS Cruise Report. MD229. N/O Marion-Dufresne. Jan 11th-March 8th 2021. https://doi.org/10.13155/83989


References of Articles published in periodicals and magazines for the general public

La depêche du midi. Une expédition toulousaine revient des mers australes, page environnement 07/03/2021


De Jean-Louis Etienne à Swings : la quête des mystères de l'océan Austral, crucial dans la régulation du climat. Le Monde. 26/04/2021

2021. Une chercheuse brestoise coordonnera la prochaine mission du Marion-Dufresne, Le Telegramme du 05/01/21

2020. Portrait. Hélène Planquette recherche les poussières de fer dans l'océan, Ouest France


References of International Seminar Communications

Cotté, C., Izard, L., d'Ovidio, F., Charrassin, J.-B., Koubbi, P., Guinet, C., Cherel, Y., Bost, C.-A., Lebourges-Dhaussy, A., Habasque, J., Roudaut, G., Goberville, E. Studying spatial structuring and patterns to elucidate the pelagic seascape of the southern Indian Ocean, 2025. 3rd Kerguelen Plateau Symposium on Marine Ecosystems and Fisheries, 31 March - 2 April 2025

Goddard-Dwyer, M. et al. The Role of Humic Substances in Fe Cycling in the South-West Indian Sector of the Southern Ocean. Ocean Sciences 2024.

Izard, L., Ariza, A., Fonvieille, N., Goberville, E., Cotté, C., Present and future acoustic seascape in the Indian Sector of the Southern Ocean, 2024 . Ocean Sciences Meeting 2024, Session ME52A: Marine Ecosystems Across Scales of Space, Time, and Biology VIII Oral

Izard, L., Djian, V., Kristiansen, A., Goberville, E., and Cotté, C. Disentangling spatial and temporal patterns from multifrequency active acoustic data reveals pelagic structuring in the eastern sub-Antarctic region, 2024. Working Group on Ecosystem Monitoring and Management for the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)

Leseurre, C., Buchanan, P., Waelbroeck, C., Reverdin, G., Metzl, N., Lo Monaco, C., Racapé, V., Pierre, C., Demange, J., and Fin, J.: Investigation of the Suess effect at high latitude over the last two decades - A model-data study, 6th ICOS International Science Conference, 2024, Versailles, France, talk.

Léon M., van Beek P., Sanial P., Charette M.A., Baudet C., Jacquet S., Lansard B., Souhaut M., Henderson P., Gueneuguès A., Blain S., Jea ndel C., Planquette H. Radium isotopes in the Indian Sector of the Southern Ocean during SWINGS section (GEOTRACES GS02). In 9th Ra-Rn meeting, Southampton,UK, 2024.

IBiS, Louvain-La-Neuve, Belgium 2024:

Jeandel, C., Senini, M. B., Lagarde, M., Baudet, C., & Planquette, H. (2023, July). REE distributions in the Southern Indian Ocean with a focus on land-ocean inputs (SWINGS GEOTRACES cruise). Goldschmidt 2023

Le Roy, E., Jacquet, S., Baudet, C., Dufour, A., Cardinal, D., González-Santana, D., ... & Planquette, H. Barium excess as remineralization proxy in the Southern Ocean-Indian sector (SWINGS-GS02). Goldschmidt 2023

Léon M., van Beek P., Sanial P., Souhaut M., Jeandel C., Planquette H. (2023, July). Radium isotopes to emphasize a hydrothermal plume in the South West Indian Ridge Region. Goldschmidt 2023

E. Cotard, V. Deteix, A. Dapoigny, S. Caquineau, T. Ryan-Keogh and D. Cardinal. Silicon isotopic contrast between Southern Ocean fertilized and HNLC (High Nutrients Low Chlorophyll) areas : focus around Kerguelen and Heard Islands. Goldschmidt 2023.

Baudet, C., Planquette, H., Bucciarelli, E., Sarthou, G., Pelleter, E., Gayet, N., ... & Jeandel, C. Trace metal distributions in the South West Indian Ocean (SWINGS cruise): a focus on iron and manganese. Goldschmidt 2022

Goddard-Dwyer, M. et al. Biogeochemical Cycling of Iron Binding Humic Ligands in the South-West Indian Sector of the Southern Ocean. Oral Presentation. Challenger Society for Marine Science 150 Conference September 2022

Senini, M. B., Jeandel, C., Lagarde, M., Planquette, H., & Baudet, C. Dissolved and particulate REE distributions in the tropical and subtropical Indian Ocean (SWINGS cruise). Goldschmidt 2022

Lemaitre, N., Ellwood, M., Hassler, C., Jeandel, C., Planquette, H., Vance, D. Nickel and zinc cycling in the Southern Ocean: insights from isotopes. 12th International Symposium Geochemistry of the Earth's Surface 2022

Lemaitre, N., Planquette, H., Jeandel, C., Ellwood, M., Hassler C., Vance, D. Nickel and zinc cycling in the Southern Ocean: insights from isotopes. Goldschmidt 2022

Léon, M., van Beek, P., Sanial, V., Souhaut, M. Jeandel C., Planquette H. Radium isotopes to emphasize a hydrothermal plume in the South West Indian Ridge region. Goldschmidt 2022

2022. Isotopes in Biogenic Silica, IBIS, Lund Suède : Isotopes in Biogenic Silica ; E. Cotard, V. Deteix, A. Dapoigny, S. Caquineau, T. Ryan-Keogh and D. Cardinal. Biogeochemical cycle of Silicon along the South West Indian Ocean GEO-TRACES Section (SWINGS)

E. Cotard, V. Deteix, A. Dapoigny, S. Caquineau, T. Ryan-Keogh and D. Cardinal. Silicon isotopic contrast between Southern Ocean ferti-lized and HNLC (High Nutrients Low Chlorophyll) areas around Kerguelen and Heard Islands

DEA or MASTER 2 using campaign data

Rawat, S. (2025). The island mass effect shapes the top-down and bottom-up controls on productivity in the Indian Southern Ocean. University of Cape Town. Supervisée par Thomas Ryan-Keogh

C. Monteiro (2024) - Nitrogen isotopes in the Southern Ocean (University of Cape Town). Supervisée par S. Fawcett.

G. Tréguer (2024) - Isotopes du Baryum sur le plateau de Kerguelen (Université de Bretagne Occidentale). Supervisée par E. Le Roy et H. Planquette

Idini, E. (2022). Microbial responses to changes in nutrient and temperature regimes in the Southern Ocean. Sorbonne Université. Supervisée par Ingrid Obernosterer

V. Deteix (2022) - Silicium biogénique et lithogénique le long de la section sud-ouest de l'océan Indien du programme GEOTRACES (SWINGS-GS02) (Sorbonne Université). Supervisé par D. Cardinal

E. Cotard (2021) - Thorium-234 dans le secteur indien de l'océan austral (Université de Bretagne Occidentale). Supervisé par F. Planchon

Thesis using campaign data

Cotard, E. (2025). Cycle biogéochimique du silicium le long de la section GEOTRACES Sud-Ouest de l'Océan Indien (SWINGS, Océan Austral). (Sorbonne Université)

Goddard-Dwyer, M. (2024). The Role of Humic Substances in Fe Cycling in the South-West Indian Sector of the Southern Ocean. (Doctoral dissertation, University of Liverpool, UK)

Izard Lloyd (2023). Spatial structuring and variability of mesopelagic ecosystems in the southern Indian ocean. PhD Thesis, Université Sorbonne.


Baudet Corentin (2023). Cycle biogéochimique du Fe et du Mn dans le secteur Indien de l'océan Austral. PhD Thesis, Université de Bretagne Occidentale.


Leon Morgane (2023). Étude des isotopes du radium et de l’actinium-227 le long de la section SWINGS dans l’Océan Austral. PhD Thesis, Université de Toulouse.


Leon, M. (2023). Étude des isotopes du radium et de l'actinium-227 le long de la section SWINGS dans l'océan Austral (Doctoral dissertation, Université Paul Sabatier-Toulouse III)

Levier Martin (2022). Développement et utilisation de l'Actinium-227 comme traceur du mélange de l'océan profond / Development and use of Actinium 227 as a tracer of deep ocean mixing. PhD Thesis, Université Paris-Saclay.


Leseurre Coraline (2022). Mécanismes de contrôle de l’absorption de CO2 anthropique et de l’acidification des eaux dans les océans Atlantique Nord et Indien Austral / Mechanisms controlling anthropogenic CO2 uptake and acidification in North Atlantic and Southern Indian Ocean waters. PhD Thesis, Université Sorbonne.


Fuchs Robin (2022). Méthodes neuronales et données mixtes : vers une meilleure résolution spatio-temporelle des écosystèmes marins et du phytoplancton / Neural methods and mixed data : towards a better spatio-temporal resolution of marine ecosystems and phytoplankton. PhD Thesis, Université d'Aix Marseille.


Lagarde Marion (2022). Les terres rares : traceurs des apports lithogéniques et des échanges dissous-particulaires dans l'Atlantique Nord subpolaire (campagne GEOVIDE, GEOTRACES GA01). PhD Thesis, Université de Toulouse.


Ringard, A. (en cours). Variabilité saisonnière du fer et manganèse particulaire (Université Brest Occidentale).

Benito, L. (en cours). Export de carbone et métaux traces dans le secteur indien de l'océan austral (Université Brest Occidentale)