TONGA 2019

Type Oceanographic cruise
Ship L'Atalante
Ship owner Ifremer
Dates 31/10/2019 - 05/12/2019
Chief scientist(s) GUIEU Cécile , BONNET Sophie

LABORATOIRE D'OCÉANOGRAPHIE DE VILLEFRANCHE-SUR-MER - UMR 7093

181 chemin du Lazaret

06230 Villefranche-sur-Mer

+33 (0)4 93 76 38 13

lov@obs-vlfr.fr

https://lov.imev-mer.fr/web/

DOI 10.17600/18000884
Objective

The objectives of the cruise were to investigate at least 2 active volcanoes where shallow (< 500 m) hydrothermal sites could release chemical elements both able to fertilize and/or bring toxicity to the planktonic food web. More specifically, the task 1 of the TONGA cruise was to characterize chemically and optically the hydrothermal fluids and to compare the source from below (shallow hydrothermal fluids) with the source from above (atmospheric deposition); the task 2 was related to the dynamical dispersion of the fluids at small and regional scale; the third task was to investigate the impact of the shallow hydrothermal sources on the biological activity and diversity, and the feedback to the atmosphere via the oceanic emissions of primary and secondary aerosols.

An important objective was to communicate about the campaign mainly by the feed of a Tweeter account (https://twitter.com/tongaproject). The outreach component of the campaign was done in collaboration with the adopt-a-float project https://twitter.com/AdoptaFloat) and two floats have been `adopted' by kids from two schools (one in Nouméa and one in Abu Dhabi).

The position of the sampling station has been constantly re evaluated during the campaign to fulfill the objectives: a long west to east (up to the blue waters of the gyre) transect allowed to characterize the different biogeochemical provinces crossed and a focus in the region of the Lau Basin allowed to investigate the impact of shallow hydrothermal sources.

A series of short and long stations allowed to fully characterizing the stocks and the fluxes in the different provinces. Short-term (up to 10 days) processes studies have been conducted (drifting moorings and minicosms experiments). A fixed mooring deployed in the Lau Basin will allow to study the carbon/metals export at the annual time scale. In addition to the team embarked on board the R/V Atalante, several scientists assisted us on land to advice on the potential active sites that we could visit, the dynamic condition of the targeted area and also specifically on the interpretation of acoustic survey above volcanoes.

 

Published data

Guieu Cécile, Bonnet Sophie, Abadou Fatima, Alliouane Samir, Arnaud-Haond Sophie, Arnone Veronica, Baudoux Anne-Claire, Baumas Chloe, Beillard Lucie, Benavides Mar, Berman-Frank Ilana, Bhairy Nagib, Bigeard Estelle, Boulart Cedric, Bouruet-Aubertot Pascale, Boyd Philip, Bressac Matthieu, Camps Mercedes, Chaffron Samuel, Chavagnac Valérie, Chevaillier Servanne, Collot Julien, Cuypers Yannis, de Liège Guillaume, de Saint Léger Emmanuel, de Vargas Colomban, Desboeufs Karine, Desgranges Marie-Maelle, Destrigneville Christine, Dimier Céline, Diruit Wendy, Dissard Delphine, Doussin Jean-François, Dufour Aurélie, Dulaquais Gabriel, Fernandez Jean-Michel, Feron Anaïs, Ferrieux Mathilde, Filella Alba, Forrer Heather, Fourrier Pierre, Gac Jean-Philippe, Gachenot Martin, Gaimoz Cécile, Garczarek Laurence, Gazeau Frédéric, Gonzalez Aridane, Gonzalez Santana David, Gorgues Thomas, Grima Nicolas, Grisoni Jean-Michel, Grosso Olivier, Guigue Catherine, Habasque Jeremie, Heimbürger-Boavida Lars-Eric, Jeandel Catherine, Jeanthon Christian, Journet Emilie, Knapp Angela, Lacan François, Le Gall Florence, Le Moal Pierre, Le Moigne Frédéric, Leblanc Karine, Leblond Nathalie, Lebourges-Dhaussy Anne, Leconte Jade, Lefèvre Dominique, Lombard Fabien, Lorrain Anne, Lory Caroline, Maes Christophe, Mahieu Léo, Marie Dominique, Mazoyer Camille, Menkes Christophe, Michoud Vincent, Montanes Maryline, Not Fabrice, Nunige Sandra, Paparella Francesco, Patriat Martin, Pelletier Bernard, Petrenko Anne, Planquette Helene, Point David, Portlock Gemma, Probert Ian, Pulido-Villena Elvira, Ratin Morgane, Ratnarajah Lavenia, Riso Ricardo, Rizzo Andrea, Salaun Pascal, Sarthou Geraldine, Schmechtig Catherine, Sellegri Karine, Simon Nathalie, Tagliabue Alessandro, Taillandier Vincent, Tamburini Christian, Tedetti Marc, Thibon Fanny, Tilliette Chloé, Torres Rodriguez Natalia, Triquet Sylvain, Uitz Julia, Van [...] (2023). BIOGEOCHEMICAL dataset collected during the TONGA cruise. https://doi.org/10.17882/88169


Data managed by SISMER

Bibliography

Publications

Mahieu Léo, Whitby Hannah, Dulaquais Gabriel, Tilliette Chloé, Guigue Catherine, Tedetti Marc, Lefevre Dominique, Fourrier Pierre, Bressac Matthieu, Sarthou Geraldine, Bonnet Sophie, Guieu Cécile, Salaün Pascal (2024). Iron-binding by dissolved organic matter in the Western Tropical South Pacific Ocean (GEOTRACES TONGA cruise GPpr14). Frontiers In Marine Science, 11, 1304118 (19p.). Publisher's official version : https://doi.org/10.3389/fmars.2024.1304118 , Open Access version : https://archimer.ifremer.fr/doc/00877/98918/


Mahieu Léo, Omanović Dario, Whitby Hannah, Buck Kristen N., Caprara Salvatore, Salaün Pascal (2024). Recommendations for best practice for iron speciation by competitive ligand exchange adsorptive cathodic stripping voltammetry with salicylaldoxime. Marine Chemistry, 259, 104348 (15p.). https://doi.org/10.1016/j.marchem.2023.104348


Abadou Fatima-Ezzahra, Le Moigne Frédéric A.C., Cornet-Barthaux Véronique, Taillandier Vincent, Bonnet Sophie (2024). Composition of the sinking particle flux in a hot spot of dinitrogen fixation revealed through polyacrylamide gel traps. Frontiers In Marine Science, 10, 1290625 (16p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1290625 , Open Access version : https://archimer.ifremer.fr/doc/00875/98674/


Tilliette Chloé, Gazeau Frédéric, Chavagnac Valérie, Leblond Nathalie, Montanes Maryline, Leblanc Karine, Schmidt Sabine, Charrière Bruno, Bhairy Nagib, Guieu Cécile (2023). Significant Impact of Hydrothermalism on the Biogeochemical Signature of Sinking and Sedimented Particles in the Lau Basin. Journal Of Geophysical Research-oceans, 128(12), e2023JC019828 (22p.). Publisher's official version : https://doi.org/10.1029/2023JC019828 , Open Access version : https://archimer.ifremer.fr/doc/00864/97574/


Forrer Heather J., Bonnet Sophie, Thomas Rachel K., Grosso Olivier, Guieu Cecile, Knapp Angela N. (2023). Quantifying N2 fixation and its contribution to export production near the Tonga-Kermadec Arc using nitrogen isotope budgets. Frontiers In Marine Science, 10, 1249115 (14p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1249115 , Open Access version : https://archimer.ifremer.fr/doc/00871/98264/


Mériguet Zoé, Vilain Marion, Baudena Alberto, Tilliette Chloé, Habasque Jeremie, Lebourges-Dhaussy Anne, Bhairy Nagib, Guieu Cécile, Bonnet Sophie, Lombard Fabien (2023). Plankton community structure in response to hydrothermal iron inputs along the Tonga-Kermadec arc. Frontiers In Marine Science, 10, 1232923 (19p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1232923 , Open Access version : https://archimer.ifremer.fr/doc/00855/96737/


Dulaquais Gabriel, Fourrier Pierre, Guieu Cécile, Mahieu Léo, Riso Ricardo, Salaun Pascal, Tilliette Chloé, Whitby Hannah (2023). The role of humic-type ligands in the bioavailability and stabilization of dissolved iron in the Western Tropical South Pacific Ocean. Frontiers In Marine Science, 10, 1219594 (19p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1219594 , Open Access version : https://archimer.ifremer.fr/doc/00852/96421/


Bonnet Sophie, Guieu Cécile, Taillandier Vincent, Boulart Cedric, Bouruet-Aubertot Pascale, Gazeau Frédéric, Scalabrin CarlaORCID, Bressac Matthieu, Knapp Angela N., Cuypers Yannis, González-Santana David, Forrer Heather J., Grisoni Jean-Michel, Grosso Olivier, Habasque Jeremie, Jardin-Camps Mercedes, Leblond Nathalie, Le Moigne Frédéric A. C., Lebourges-Dhaussy Anne, Lory Caroline, Nunige Sandra, Pulido-Villena Elvira, Rizzo Andrea L., Sarthou Geraldine, Tilliette Chloé (2023). Natural iron fertilization by shallow hydrothermal sources fuels diazotroph blooms in the ocean. Science, 380(6647), 812-817. https://doi.org/10.1126/science.abq4654


Tilliette Chloé, Gazeau Frédéric, Portlock Gemma, Benavides Mar, Bonnet Sophie, Guigue Catherine, Leblond Nathalie, Lory Caroline, Marie Dominique, Montanes Maryline, Pulido-Villena Elvira, Sarthou Geraldine, Tedetti Marc, Vorrath Maria-Elena, Whitby Hannah, Guieu Cécile (2023). Influence of shallow hydrothermal fluid release on the functioning of phytoplankton communities. Frontiers In Marine Science, 10, 1082077 (18p.). Publisher's official version : https://doi.org/10.3389/fmars.2023.1082077 , Open Access version : https://archimer.ifremer.fr/doc/00836/94818/


Tilliette Chloé, Gazeau Frédéric, Chavagnac Valerie, Leblond Nathalie, Montanes Maryline, Leblanc Karine, Schmidt Sabine, Charrière Bruno, Bhairy Nagib, Guieu Cécile. Temporal and spatial variability in the hydrothermal signature of sinking particles and sediments in the Western Tropical South Pacific Ocean. ESS Open Archive IN PRESS. Publisher's official version : https://doi.org/10.22541/essoar.167898492.26733124/v1 , Open Access version : https://archimer.ifremer.fr/doc/00829/94106/


Fuchs Robin, Baumas Chloé M. J., Garel Marc, Nerini David, Le Moigne Frédéric A. C., Tamburini Christian (2023). A RUpture‐Based detection method for the Active mesopeLagIc Zone (RUBALIZ): A crucial step toward rigorous carbon budget assessments. Limnology And Oceanography-methods, 21(1), 24-39. Publisher's official version : https://doi.org/10.1002/lom3.10520 , Open Access version : https://archimer.ifremer.fr/doc/00800/91226/


Bonnet Sophie, Benavides Mar, Le Moigne Frédéric A. C., Camps Mercedes, Torremocha Antoine, Grosso Olivier, Dimier Céline, Spungin Dina, Berman-Frank Ilana, Garczarek Laurence, Cornejo-Castillo Francisco M. (2023). Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean. Isme Journal, 17(1), 47-58. Publisher's official version : https://doi.org/10.1038/s41396-022-01319-3 , Open Access version : https://archimer.ifremer.fr/doc/00795/90702/


Fourrier Pierre, Dulaquais Gabriel, Riso Ricardo (2022). Influence of the conservation mode of seawater for dissolved organic carbon analysis. Marine Environmental Research, 181, 105754 (7p.). Publisher's official version : https://doi.org/10.1016/j.marenvres.2022.105754 , Open Access version : https://archimer.ifremer.fr/doc/00795/90746/


Benavides Mar, Bonnet Sophie, Le Moigne Frédéric A. C., Armin Gabrielle, Inomura Keisuke, Hallstrøm Søren, Riemann Lasse, Berman-Frank Ilana, Poletti Emilie, Garel Marc, Grosso Olivier, Leblanc Karine, Guigue Catherine, Tedetti Marc, Dupouy Cécile (2022). Sinking Trichodesmium fixes nitrogen in the dark ocean. Isme Journal, 16(10), 2398-2405. Publisher's official version : https://doi.org/10.1038/s41396-022-01289-6 , Open Access version : https://archimer.ifremer.fr/doc/00788/89959/


Filella Alba, Riemann Lasse, Van Wambeke France, Pulido-Villena Elvira, Vogts Angela, Bonnet Sophie, Grosso Olivier, Diaz Julia M., Duhamel Solange, Benavides Mar (2022). Contrasting Roles of DOP as a Source of Phosphorus and Energy for Marine Diazotrophs. Frontiers In Marine Science, 9, 923765 (10p.). Publisher's official version : https://doi.org/10.3389/fmars.2022.923765 , Open Access version : https://archimer.ifremer.fr/doc/00824/93601/


Tilliette C., Taillandier V., Bouruet‐aubertot P., Grima Nicolas, Maes Christophe, Montanes M., Sarthou Geraldine, Vorrath M‐e., Arnone V., Bressac M., González‐santana D., Gazeau F., Guieu C. (2022). Dissolved iron patterns impacted by shallow hydrothermal sources along a transect through the Tonga‐Kermadec arc. Global Biogeochemical Cycles, 36(7), e2022GB007363 (27p.). Publisher's official version : https://doi.org/10.1029/2022GB007363 , Open Access version : https://archimer.ifremer.fr/doc/00782/89400/


Lory C., Van Wambeke F., Fourquez M., Barani A., Guieu C., Tilliette C., Marie D., Nunige S., Berman-Frank I., Bonnet Sophie (2022). Assessing the contribution of diazotrophs to microbial Fe uptake using a group specific approach in the Western Tropical South Pacific Ocean. Isme Communications, 2(1), 41 (11p.). Publisher's official version : https://doi.org/10.1038/s43705-022-00122-7 , Open Access version : https://archimer.ifremer.fr/doc/00768/87958/


Fourrier P., Dulaquais Gabriel, Guigue C., Giamarchi P., Sarthou Geraldine, Whitby H., Riso Ricardo (2022). Characterization of the vertical size distribution, composition and chemical properties of dissolved organic matter in the (ultra)oligotrophic Pacific Ocean through a multi-detection approach. Marine Chemistry, 240, 104068 (15p.). Publisher's official version : https://doi.org/10.1016/j.marchem.2021.104068 , Open Access version : https://archimer.ifremer.fr/doc/00741/85342/


Benavides Mar, Conradt Louis, Bonnet Sophie, Berman-Frank Ilana, Barrillon Stéphanie, Petrenko Anne, Doglioli Andrea (2021). Fine-scale sampling unveils diazotroph patchiness in the South Pacific Ocean. Isme Communications, 1(1), 3 (3p.). Publisher's official version : https://doi.org/10.1038/s43705-021-00006-2 , Open Access version : https://archimer.ifremer.fr/doc/00745/85676/


References of Technical Reports

Guieu Cécile, Bonnet Sophie (2023). TONGA. Cruise report of oceanographic campaign (R/V L’Atalante, oct 31-dec 6, 2019). updated version November 2023. https://archimer.ifremer.fr/doc/00870/98160/


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

Guieu C., (2021) A la recherche des volcans sous-marins : Carnet de Mission, Carnets de Sciences #10, CNRS Editions, Printemps / Été 2021, 196 pages, ISBN : 9-782271-137067

References of International Seminar Communications

Audax M., Boniface T., Claustre H., Cornec M., Ferraris M., Fourrier M., Guieu C., Jessin T., Loïc Le Ster L. Lombard F., Penkerc'h C., Petit F., Poteau A., Terrats L. & Scheurle C., (2022) Adopt a float: an international educational program to discover the Ocean and marine sciences, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Berthelier C., Henry N., Leconte J., Ferrieux M., Bigeard E., Ratin M., Le Gall F., Romac S., Jeanthon C., Guillou L., De Vargas C., Partensky F., Not F., Guieu C., Bonnet. C, Baudoux AC and Garczarek L., (2022) Diversity analysis of planktonic communities in the South-West Pacific Ocean influenced by Tonga's volcanic arc, Gen2Bio La Baule 2022: 24-25 March

Berthelier C., Henry N., Leconte J., Ferrieux M., Bigeard E., Ratin M., Le Gall F., Romac S., Jeanthon C., Guillou L., De Vargas C., Partensky F., Not F., Guieu C., Bonnet. C, Baudoux AC and Garczarek L., (2022) Diversity analysis of planktonic communities in the South-West Pacific Ocean influenced by Tonga's volcanic arc, JOBIM Rennes 2022: 5-8 July

Bonnet S. & Cecile Guieu C. and the TONGA team, (2022) An oasis in the desert: shallow hydrothermal iron triggers massive diazotroph blooms in the subtropical Pacific Ocean, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Forrer H., Bonnet S., Thomas R., Grosso O., Guieu C., Knapp A., (2022) Geochemical signatures of nitrogen fixation in the western subtropical South Pacific: d15N budgets and low-d15N DON, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Léo Mahieu, Hannah Whitby, Gabriel Dulaquais, Chloé Tilliette, Matthieu Bressac, Veronica Arnone, David González-Santana, Géraldine Sarthou, Hélène Planquette, Cécile Guieu, Sophie Bonnet, Pascal Salaün, Iron-binding ligands in the shallow hydrothermal system of the Tonga-Kermadec volcanic: distribution, strength, and dynamic, Challenger Conference 150, 5-8 September 2022, (2022)

Portlock G., Fourrier P., Dulaquais G., Riso R., Salaun P., Whitby H, Bonnet S., Guieu C ., & Gazeau F., (2022) Distribution of thiol and humic substances during the 2019 TONGA Cruise, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Portlock G., Gazeau F., Bonnet S., Guieu C., Whitby H., Salaun P., (2022) Distribution of thiol and humic substances during the 2019 TONGA Cruise, Challenger 2022, 5 Sept - 8 Sept.

Tilliette C., Taillandier V., Bouruet-Aubertot P., Grima N., Maes C., Montanes M., Sarthou G., Vorrath M-E, Arnone V., Bressac M., Gonzalez-Santana D., Gazeau F. & Guieu C, 2022, dFe pattern impacted by shallow hydrothermal sources along a transect through the Tonga-Kermadec arc, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Vigier N., Weppe L., Tilliette C., Chavagnac V., Boulart C., Thibon F., Lombard F., Montanès M., Guieu C. & Bonnet S., (2022) Lithium concentration and Li isotope composition of plankton from the Tonga volcanic arc: influence of shallow hydrothermal fluids, ASLO Ocean Science Meeting 2022, 24 Feb- 4 March 2022, Virtual

Vigier, N., Weppe, L., Tilliette, C., Chavagnac, V., Boulart, C., Thibon, F., .Guieu C. & Bonnet, S., (2022) Impact of shallow hydrothermalism on lithium content and lithium isotope composition of marine plankton. Goldschmidt2022.

Alba Filella, France Van Wambeke, Elvira Pulido-Villena, Sandra Nunige, Olivier Grosso, Sophie Bonnet, Lasse Riemann, Solange Duhamel, Julia M. Diaz, Mar Benavides, (2021) P-anhydrides as a potential source of P for diazotrophs in the Western Tropical South Pacific (WTSP), ASLO Aquatic Sciences Meeting 2021: 22 - 27 June, Virtual

Forrer H., Bonnet S., Grosso O., Guieu C., Knapp A., (2021) Quantifying di-nitrogen fixation and its contribution to export production using d15N budgets near the Tonga arc in the western subtropical South Pacific ASLO Aquatic Sciences Meeting 2021: 22 - 27 June, Virtual

Fourrier, P., Dulaquais, G., Tilliette, C., Guieu, C., & Riso, R. (2021). Vertical and spatial distribution of the iron-humic complex during the TONGA GPpr14 expedition, Goldschmidt2021 4-9 July Virtual

Le Moal P, Boulart C, Garczarek L, Gac J.P, Bigeard E, Ferrieux M, Bonnet S and Guieu C., (2021) Potential role of marine picocyanobacteria in the distribution of dissolved methane in the Southwest Pacific Ocean, ASLO Aquatic Sciences Meeting 2021: 22 - 27 June, Virtual

Lory C., Van Wambeke F., Fourquez M., Berman-Frank I., Barani A., Tilliette C., Marie D., Nunige S., Guieu C. and Bonnet S., (2021) A group-specific approach to quantify iron uptake by diazotrophs and associated microbial communities, ASLO Aquatic Sciences Meeting 2021: 22 - 27 June, Virtual

Videodocuments

Le Réveilleur (2022) L'interview du Réveilleur avec C Guieu et S Bonnet: www.echosciences-paca.fr/articles/video-echoscientifique-n-23 Dans le cadre du projet Echosciences Provence-Alpes-Côte d'Azur https://www.echosciences-paca.fr

Le Réveilleur (2022) Pourquoi la Vie Galère dans l'océan : https://www.youtube.com/watch?v=3105ScO53fo Dans le cadre du projet Echosciences Provence-Alpes-Côte d'Azur https://www.echosciences-paca.fr avec Cécile Guieu (CNRS / Laboratoire d'Océanographie de Villefranche) & Sophie Bonnet (IRD / l'Institut Méditerranéen d'Océanologie).

The TONGA oceanographic expedition, (2021) Film 26' Director: Hubert Bataille Co-production: IRD-CNRS , Scientific advisors: Sophie Bonnet (IRD), Cécile Guieu (CNRS). English version: https://www.youtube.com/watch?v=UeABf-cVR-k

Mission TONGA à la recherche des volcans sous-marins du Pacifique, (2020) Film 26' Réalisateur : Hubert Bataille Co-production : IRD-CNRS Conseillères scientifiques: Sophie Bonnet (IRD), Cécile Guieu (CNRS) Copyright IRD 2020. Version française: https://www.youtube.com/watch?v=e5kAd0i6Dck

DEA or MASTER 2 using campaign data

FEBVRE Sanjay (2023), Que nous apprennent les isotopes du fer sur les sources hydrothermales peu profondes du Pacifique Sud-Ouest, Université Paul SABATIER

MAGADUR Emile (2023) Effet des apports hydrothermaux des volcans sous-marins peu profonds sur la diversité fonctionnelle et l'activité des communautés planctoniques du Pacifique Sud-Ouest collectées lors de la campagne TONGA, Sorbonne Univ.

CORVEC Annaëlle (2022), Impact du volcanisme sous-marin sur la biogéochimie marine, étudié par les isotopes du fer, Université Paul SABATIER

CONRADT Louis (2020), Aix-Marseille Univ., Fine scale diazotroph distribution

LE MOAL Pierre, (2020), Methane distribution in the SW Pacific. Role of Cyanobacteria, Sorbonne Univ.

POINDRON Charlotte (2020) Analyse des événements de pluies pendant TONGA, Université de Paris

TORREMOCHA Antoine, (2020), Impact de la fixation d'azote sur l'export de matière organique dans le Pacifique sud-ouest (TONGA), Aix-Marseille Univ.

VILAIN Marion (2020), Microplankton and mesozooplankton traitement et analyse des échantillons, Sorbonne Univ./Aix-Marseille Univ.

Thesis using campaign data

Tilliette Chloé (2023). Influence du fer et autres éléments traces issus des sources hydrothermales peu profondes sur la biogéochimie marine dans le Pacifique Sud-Ouest / Influence of iron and other trace elements from shallow hydrothermal sources on marine biogeochemistry in the Western Tropical South Pacific Ocean. PhD Thesis, Université Sorbonne.


ABABOU Fatima-Ezzahra, (2023) Devenir de la fixation d'azote dans l'océan, Aix-Marseille University

ARNONE Veronica, (2023) Organic complexation of Fe and Cu in marine environments Universidad de Las Palmas de Gran Canaria

FILELLA Alba (2023) Relation diazotrophie/DOM dans l'ocean, Aix-Marseille University

FOURRIER Pierre (2023), Biogeochemistry of Dissolved Organic Matter in the Pacific Ocean, Université de Bretagne Occidentale

Fourrier Pierre (2022). Biogéochimie de la matière organique dissoute dans l'Océan Pacifique / Biogeochemistry of dissolved organic matter in the Pacific Ocean. PhD Thesis, Université de Bretagne Occidentale.


Ferrieux Mathilde (2022). Adaptation à la température et à la limitation en fer chez un représentant majeur du phytoplancton marin, la picocyanobactérie Synechococcus. PhD Thesis, Université Sorbonne.


Lory Caroline (2022). Rôle du fer dans le contrôle de la fixation d'azote atmosphérique dans l'océan Pacifique tropical sud-ouest. PhD Thesis, Université Aix Marseille.


FORRER Heather (2022), Sources of nitrogen fueling export production using nitrogen isotope budgets, Florida State University

MAHIEU Léo, (2022), Impact of pH on Fe organic complexation in the ocean, University of Liverpool

PORTLOCK Gemma (2022), The sources and sinks of thiols, humic substances and sulfides in hydrothermal waters, University of Liverpool

Gonzalez Santana David (2020). Processus contrôlant la dispersion et la spéciation redox du fer dissous d'origine hydrothermale (dorsale médio-atlantique) / Processes driving the dispersion and redox speciation of hydrothermally sourced dissolved iron (Mid-Atlantic Ridge). PhD Thesis, Université de Bretagne Occidentale.