Matthieu Bressac

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Matthieu Bressac

Matthieu Bressac

Marine Biogeochemistry

Room 2nd floor – Desk #213.19, IMAS Hobart Waterfront Building, Hobart CBD Campuses

Dr Matthieu Bressac is a Postdoctoral Research Fellow at the Institute for Marine and Antarctic Studies. His research focuses on carbon and iron biogeochemistry, and combines field and laboratory works to explore how these two elements are recycled in the mesopelagic zone (100-1000 m).


Dr Bressac graduated in 2013 with a PhD in Biogeochemical Oceanography at the University Pierre et Marie Curie (Paris VI, France). His thesis focused on the impacts of dust deposition on the ocean iron cycle and carbon export. He then worked as a Postdoctoral Fellow at the International Atomic Energy Agency Marine Environment Laboratories (IAEA-MEL, Monaco) to develop new techniques for the analysis of radionuclides in seawater. Between 2014 and 2017, Dr Bressac was awarded a Marie Curie Postdoctoral Fellowship and worked at the Institute for Marine and Antarctic Studies (IMAS, Australia) and at the Laboratory of Oceanography of Villefranche (LOV, France) to investigate the implications of the mesopelagic remineralization for the ocean iron cycle.


Marie Curie International Outgoing Fellowship (2014-2017).

Career summary




University Pierre et Marie Curie, Paris VI





University Aix-Marseille II





University Claude Bernard Lyon 1



Languages (other than English)


View more on Dr Matthieu Bressac in WARP


Dissolved and particulate trace elements sampling and analysis

In situ mesopelagic remineralization rate measurements

Sediment trap deployment and analysis

Optical and particle size distribution measurements

Actinides analysis

Phytoplankton culturing

Research Themes

Matthieu’s research aligns to the University’s research theme of Marine, Antarctic and Maritime. His research interests include carbon and iron biogeochemistry, and in particular the fate of these elements in the mesopelagic (100-1000 m). Notably, Matthieu has developed a new instrument able to measure the bacterial remineralization of particulate iron at in situ pressure and temperature conditions. This instrument has been successfully deployed within the upper mesopelagic (100-200 m) of the Subantarctic Zone and Mediterranean Sea.


Matthieu is currently involved in four international projects which aim at better understanding the factors controlling the biological carbon pump, and in particular the export of carbon to the deep ocean. These projects involve collaboration with scientists from the US, France, and Australia.


Marie Curie Postdoctoral Fellowship (2014-2017)

Current projects

Geoengineering the Southern Ocean? A transdisciplinary assessment (ARC Laureate Fellowship,

Fields of Research

  • Chemical Oceanography (040502)
  • Marine and Estuarine Ecology (incl. Marine Ichthyology) (060205)

Research Objectives

  • Ecosystem Adaptation to Climate Change (960305)
  • Climate Change Mitigation Strategies (960302)
  • Marine Oceanic Processes (excl. climate related) (969902)


Total publications


Journal Article

(3 outputs)
2016Boyd PW, Bressac M, 'Developing a test-bed for robust research governance of geoengineering: the contribution of ocean iron biogeochemistry', Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374, (2081) Article 20150299. ISSN 1364-503X (2016) [Refereed Article]

DOI: 10.1098/rsta.2015.0299 [eCite] [Details]

Citations: Scopus - 3Web of Science - 3

Co-authors: Boyd PW


2016Chamizo E, Lopez-Lora M, Bressac M, Levy I, Pham MK, 'Excess of 236U in the northwest Mediterranean Sea', Science of the Total Environment, 565 pp. 767-776. ISSN 0048-9697 (2016) [Refereed Article]

DOI: 10.1016/j.scitotenv.2016.04.142 [eCite] [Details]

Citations: Scopus - 8Web of Science - 8


2014Guieu C, Ridame C, Pulido-Villena E, Bressac M, Desboeufs K, et al., 'Impact of dust deposition on carbon budget: a tentative assessment from a mesocosm approach', Biogeosciences, 11, (19) pp. 5621-5635. ISSN 1726-4170 (2014) [Refereed Article]

DOI: 10.5194/bg-11-5621-2014 [eCite] [Details]

Citations: Scopus - 19Web of Science - 14


Marie Curie International Outgoing Fellowship (2014-2017)