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Richard Sempere

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Présentation

**Richard Sempéré,** Director of Research at CNRS: Oceanographer. Marine and atmospheric geochemist. 2021-Director of Aix-Marseille University 'Ocean Sciences Institute' 2012-2021-Director of the Mediterranean Institute of Oceanography (M I O), Aix Marseille University, CNRS, IRD, Univ. Toulon, France 2004-2012: Director of LMGEM laboratory, UMR 6117, Aix Marseille University, CNRS, France **Research interests:** Exploration of sources and sinks of natural organic matter in aquatic environments. The intersection of the carbon cycle and microbial communities under global change conditions. Marine and atmospheric chemistry. Study of dissolved organic matter including sugars, dicarboxylic acids, phthalates, chromophoric organic matter. UV impact (photo-oxydation) on organic matter decomposition. Bacterial degradation of organic matter. Organic contaminants in atmospheric and aquatic systems. **1-Degrees** 1986, Master in Oceanography and Meteorology Paris Sorbonne University 1991, PhD in Oceanography, University of Perpignan, CNRS *1991-1993: Post-Doctoral study in Tokyo (Tokyo Metropolitan University), JSPS fellowship* **2-Professional experiences** 1994-: Permanent Position at CNRS, Aix Marseille University **3-Direction of 10 PhD DThesis. Author or co-author of 110 peer review papers.**
**Richard Sempéré** ***Curriculum Vitae*** **Richard Sempéré** Director of Research at CNRS: Oceanographer. Marine and atmospheric geochemist. Two children (22 and 20) Currently: Director of Research at CNRS, Director of the Mediterranean Institute of Oceanography (M I O), Aix Marseille University, CNRS, IRD, Toulon University. **Research interests:** Exploration of sources and sinks of natural organic matter in aquatic environments. Plastic and additives in the Ocean. The intersection of the carbon cycle and microbial communities under global change conditions. Marine and atmospheric chemistry. Study of dissolved organic matter including sugars, dicarboxylic acids, phthalates, chromophoric organic matter. UV impact (photo-oxydation) on organic matter decomposition. Bacterial degradation of organic matter. Organic contaminants in atmospheric and aquatic systems. **1-Degrees** · 1986, Master in Oceanography and Meteorology University of Paris Sorbonne University · 1991, PhD in Oceanography, University of Perpignan, CNRS LSGM. · 2001, Habilitation for PhD direction (HDR), University Aix Marseille University **2-Professional experiences** · 1987, Scientific national duty in the French Navy · 1988-1991: PhD (University of Perpignan), scholarship from the French Ministry for Research and Education · 1991-1993: Post-Doctoral study in Tokyo (Tokyo Metropolitan University), JSPS fellowship · 1993-1994: Post-Doctoral study in LMM, UPR CNRS 223, Aix Marseille University, CNRS fellowship · 1994-2001: Permanent Position as CR1 CNRS, LMM UPR CNRS 223, Aix Marseille University · 2003: Director of Research at CNRS 2ndclass · 2009: Director of Research at CNRS 1stclass 2019: Director of Research at CNRS DRCE1 2 · 2004-2012: Director of the LMGEM laboratory (UMR CNRS 6117) · Since 2012: Director of M I O laboratory (UMR 7294, UM 110). CNRS, IRD, Aix Marseille University and Toulon University. M I O laboratory comprises 236 people. **3-Direction of students, post-docs researchers** ***12 (Doctor degree-PhD) students, 8 post-doctoral researchers and about 50 Master degree and others students.*** **4-National responsibilities** ***CNRS, IRD*** · 1997-1998: -Member of the national biogeochemistry equipment-working group for INSU/CNRS (CSOA) · 1998-2000: -President of the national biogeochemistry equipment committee (CSOA) · 2004-2007: Member of the CNRS national committee (section 19) · 2004-2007: Member of the CNRS national committee (section 46) · 2004-2007: Member of the CNRS/INSU scientific committee · 2008-2011: Member of the IRD national committee (CSS3) · Since 2017: Member of the French ANR committee · Member of the executive committee of the French Pole Mediterranee. **5-National-programmes** · Co-PI of the MERMEX (http://mio.pytheas.univ-amu.fr): since 2009 · Co-PI of the LEFE/CYBER UVECO1 program: 2003-2006. · Co-PI of the UVPACA program · CO-PI of Agence de l’eau projects: Blue Polut, CareMed · French knowledge national pivot of the European project Blue Med **6-International** · 2007-2015. Associate editor in Marine Chemistry. · Since 2007-Review editor of Aquatic Microbial Ecology and Marine Ecology Progress Series (Reviewer staff). · Partner of the JPI Ocean (European Union) research project PLASTOX (plastics and contaminants in seawater) and PERSEUS (FP7). · Associate member of the international SCOR working Group on new microbial concepts and methodology. Topic: “Microbial Pumping Processes of carbon in the ocean”. 2020-2022 PI of the JPI-Ocean research project, ANDROMEDA PI v **7-Professional affiliations:** · Member, American Geophysical Society, 1994 to present · Member, American Limnology and Oceanography Association, 1998 to present Member, European Geophysical Society, 2002 to present Member, European Geophysical Society, 2002 to present **8-Cruise participation** · About 15 oceanographic cruises (Antarctic, Atlantic, Pacific Ocean, Mediterranean Sea).

Publications

frederic-vaultier
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The MALINA oceanographic expedition: how do changesin ice cover, permafrost and UV radiation impactbiodiversity and biogeochemical fluxesin the Arctic Ocean?

Philippe Massicotte , Rainer Amon , David Antoine , Philippe Archambault , Sergio Balzano
Earth System Science Data, 2021, 13, pp.1561-1592. ⟨10.5194/essd-13-1561-2021⟩
Article dans une revue insu-02978433v3
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Effect of UV and Visible Radiation on Optical Properties of Chromophoric Dissolved Organic Matter Released by Emiliania huxleyi

Simona Retelletti Brogi , Bruno Charrière , Margherita Gonnelli , Frederic Vaultier , Richard Sempere
Journal of Marine Science and Engineering, 2020, 8 (11), pp.888. ⟨10.3390/jmse8110888⟩
Article dans une revue hal-03023799v1
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Transfer of singlet oxygen from senescent irradiated phytoplankton cells to attached heterotrophic bacteria: Effect of silica and carbonaceous matrices

Morgan Petit , Maxime Suroy , Richard Sempere , Frederic Vaultier , John K. Volkman
Marine Chemistry, 2015, 171, pp.87-95. ⟨10.1016/j.marchem.2015.02.007⟩
Article dans une revue hal-01164658v1

Degradation of sterols and terrigenous organic matter in waters of the Mackenzie Shelf, Canadian Arctic

Jean-Francois Rontani , Bruno Charrìère , Richard Sempere , David Doxaran , Frédéric Vaultier
Organic Geochemistry, 2014, 75, pp.61-73. ⟨10.1016/j.orggeochem.2014.06.002⟩
Article dans une revue hal-01166011v1
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Photochemical Production and Behavior of Hydroperoxyacids in Heterotrophic Bacteria Attached to Senescent Phytoplanktonic Cells

Morgan Petit , Richard Sempere , Frédéric Vaultier , Jean-Francois Rontani
International Journal of Molecular Sciences, 2013, 14 (6), pp.11795-11815. ⟨10.3390/ijms140611795⟩
Article dans une revue hal-01166012v1
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Degradation state of organic matter in surface sediments from the Southern Beaufort Sea: a lipid approach

Jean-Francois Rontani , Bruno Charrìère , Morgan Petit , Frederic Vaultier , Herman Heipieper
Biogeosciences, 2012, 9, pp.3513-3530. ⟨10.5194/bg-9-3513-2012⟩
Article dans une revue hal-00730371v1
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Intense photooxidative degradation of planktonic and bacterial lipids in sinking particles collected with sediment traps across the Canadian Beaufort Shelf (Arctic Ocean)

J.-F. Rontani , B. Charrière , A. Forest , S. Heussner , F. Vaultier
Biogeosciences, 2012, 9 (11), pp.4787-4802. ⟨10.5194/bg-9-4787-2012⟩
Article dans une revue hal-02051678v1

Origin and degradation of lipids in aeolian particles from a coastal area of the north-western Mediterranean Sea

Jean-Francois Rontani , Bruno Charrìère , Frederic Vaultier , Nicole Garcia , Richard Sempere
Atmospheric environment, 2012, 56, pp.124-135. ⟨10.1016/j.atmosenv.2012.03.058⟩
Article dans une revue hal-00703565v1