Accéder directement au contenu

Richard Sempere

10
Documents

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

dominique-lefevre

Increased bacterial growth efficiency with environmental variability : results from DOC degradation by bacteria in pure culture experiments

Marie Eichinger , Richard Sempere , Gérald Grégori , Bruno Charrìère , Jean-Christophe Poggiale
Biogeosciences Discussions, 2010, 7, pp.787-822
Article dans une revue hal-00514543v1
Image document

Increased bacterial growth efficiency with environmental variability: results from DOC degradation by bacteria in pure culture experiments

Marie Eichinger , Richard Sempere , Gérald Grégori , Bruno Charrìère , Jean-Christophe Poggiale
Biogeosciences Discussions, 2010, 7 (6), pp.1861-1876,. ⟨10.5194/bg-7-1861-2010⟩
Article dans une revue hal-01216817v1

Consumption and release of dissolved organic carbon by marine bacteria in a pulsed-substrate environment : from experiments to modelling

Marie Eichinger , Sebastian, A.L.M. Kooijman , Richard Sempere , Dominique Lefèvre , Gérald Grégori
Aquatic Microbial Ecology, 2009, 56, pp.41-54. ⟨10.3354/ame01312⟩
Article dans une revue hal-00403773v1

Effects of hydrostatic pressure on microbil alteration of sinking fecal pellets

Christian Tamburini , Madeleine Goutx , Catherine Guigue , Marc Garel , Dominique Lefèvre
Deep Sea Research Part II: Topical Studies in Oceanography, 2009, 56, pp.1533-1546. ⟨10.1016/j.dsr2.2008.12.035⟩
Article dans une revue hal-00416657v1

Modelling DOC assimilation and bacterial growth efficiency in biodegradation experiments : a case study in the Northeast Atlantic Ocean

Marie Eichinger , Jean-Christophe Poggiale , France van Wambeke , Dominique Lefèvre , Richard Sempere
Aquatic Microbial Ecology, 2006, 43, pp.139-151
Article dans une revue hal-00083291v1

Modelling DOC assimilation and bacterial growth efficiency in biodegradation experiments : a case study in the Northeast Atlantic Ocean

Marie Eichinger , Jean-Christophe Poggiale , France van Wambeke , Dominique Lefèvre , Richard Sempere
Aquatic Microbial Ecology, 2006, 43, pp.139-151
Article dans une revue hal-00092722v1
Image document

Mesoscale and seasonal variability of community production and respiration in the surface waters of the N.E. Atlantic Ocean

Anne Maixandeau , Dominique Lefèvre , Camila I. Fernandez , Richard Sempere , Rumi Sohrin
Deep-sea research. Part A, Oceanographic research papers, 2005, 52 (9), pp.1663-1676. ⟨10.1016/j.dsr.2005.03.007⟩
Article dans une revue hal-00092707v1
Image document

Distribution of microbial biomass, production, respiration, dissolved organic carbon and factors controlling bacterial production across a geostrophic front (Almeria-Oran, SW Mediterranean Sea)

France van Wambeke , D. Lefèvre , L Prieur , R. Sempéré , M Bianchi
Marine Ecology Progress Series, 2004, 269, pp.1-15. ⟨10.3354/meps269001⟩
Article dans une revue hal-03506690v1
Image document

Distribution of microbial biomass, production, respiration, dissolved organic carbon and factors controlling bacterial production across a geostrophic front (Almeria-Oran, SW Mediterranean Sea)

France van Wambeke , Dominique Lefèvre , Louis Prieur , Richard Sempere , Micheline Bianchi
Marine Ecology Progress Series, 2004, 269, pp.1-15
Article dans une revue hal-00092715v1
Image document

Distribution and cycling of total organic carbon across the Almeria-Oran Front in the Mediterranean Sea: Implications for carbon cycling in the western basin

Richard Sempere , Evgeny V. Dafner , France van Wambeke , Dominique Lefèvre , Cédric Magen
Journal of Geophysical Research, 2003, 108 (C11), pp.3361 - 3361. ⟨10.1029/2002JC001475⟩
Article dans une revue hal-01780301v1