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Richard Sempere

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**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

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Spatial and temporal patterns of organophosphate Esters flame retardants and plasticizers in airborne particles over the Mediterranean sea

Kalliopi Violaki , Javier Castro-Jiménez , Athanasios Nenes , Richard Sempere , Christos Panagiotopoulos
Chemosphere, 2024, 348, pp.140746. ⟨10.1016/j.chemosphere.2023.140746⟩
Journal articles hal-04313494v1
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Leaching of chemicals and DOC from tire particles under simulated marine conditions

Aurelio Foscari , Natascha Schmidt , Bettina Seiwert , Dorte Herzke , Richard Sempéré
Frontiers in Environmental Science, 2023, 11, ⟨10.3389/fenvs.2023.1206449⟩
Journal articles hal-04140075v1
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Effective degradation of organophosphate ester flame retardants and plasticizers in coastal sediments under high urban pressure

Javier Castro-Jimenez , Philippe Cuny , Cécile Militon , Lea Sylvi , F Royer
Scientific Reports, 2022, ⟨10.1038/s41598-022-24685-6⟩
Journal articles hal-03869637v1
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Identification and Quantification of Microplastics in the Marine Environment Using the Laser Direct Infrared (LDIR) Technique

Mélanie Ourgaud , Nam Ngoc Phuong , Laure Papillon , Christos Panagiotopoulos , François Galgani
Environmental Science and Technology, 2022, 56 (14), pp.9999-10009. ⟨10.1021/acs.est.1c08870⟩
Journal articles hal-03705932v1
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The Green Edge cruise: Understanding the onset, life and fate of the Arctic phytoplankton spring bloom

Flavienne Bruyant , Rémi Amiraux , Marie-Pier Amyot , Philippe Archambault , Lise Artigue
Earth System Science Data, 2022, 14, pp.4607-4642. ⟨10.5194/essd-2022-41⟩
Journal articles hal-03782664v1

Microplastics in Asian freshwater ecosystems: Current knowledge and perspectives

Ngoc Anh Phuong , Thi Thuy Duong , Thi Phuong Quynh Le , Trung Kien Hoang , Ha My Ngo
Science of the Total Environment, 2022, 808, pp.151989. ⟨10.1016/j.scitotenv.2021.151989⟩
Journal articles hal-03473947v1
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The role of mesopelagic fishes as microplastics vectors across the deep-sea layers from the Southwestern Tropical Atlantic

Anne K.S. Justino , Guilherme V.B. Ferreira , Natascha Schmidt , Leandro N. Eduardo , Vincent Fauvelle
Environmental Pollution, 2022, 300, pp.118988. ⟨10.1016/j.envpol.2022.118988⟩
Journal articles hal-03595969v1
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Persistent Organic Pollutants Burden, Trophic Magnification and Risk in a Pelagic Food Web from Coastal NW Mediterranean Sea

Javier Castro-Jiménez , Daniela Bănaru , Chia-Ting Chen , Begoña Jiménez , Juan Muñoz-Arnanz
Environmental Science and Technology, 2021, 55 (14), pp.9557-9568. ⟨10.1021/acs.est.1c00904⟩
Journal articles hal-03177288v2
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Contrasting degradation rates of natural dissolved organic carbon by deep-sea prokaryotes under stratified water masses and deep-water convection conditions in the NW Mediterranean Sea

Marc Garel , Christos Panagiotopoulos , Mehdi Boutrif , Daniel Repeta , Richard Sempere
Marine Chemistry, 2021, 231, pp.103932. ⟨10.1016/j.marchem.2021.103932⟩
Journal articles hal-03159104v1
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Highlights from a review of microplastics in marine sediments

Nam Ngoc Phuong , Vincent Fauvelle , Christian Grenz , Melanie Ourgaud , Natascha Schmidt
Science of the Total Environment, inPress, 777, pp.146225. ⟨10.1016/j.scitotenv.2021.146225⟩
Journal articles hal-03164736v1
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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⟩
Journal articles insu-02978433v3
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Bioaerosols and dust are the dominant sources of organic P in atmospheric particles

Kalliopi Violaki , Athanasios Nenes , Maria Tsagkaraki , Marco Paglione , Stéphanie Jacquet
npj climate and atmospheric science, 2021, 4 (1), ⟨10.1038/s41612-021-00215-5⟩
Journal articles hal-03468649v1
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Organic additive release from plastic to seawater is lower under deep-sea conditions

Vincent Fauvelle , Marc Garel , Christian Tamburini , D. Nerini , Javier Castro-Jiménez
Nature Communications, 2021, 12 (1), ⟨10.1038/s41467-021-24738-w⟩
Journal articles hal-03293644v1
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Phthalates and organophosphate esters in surface water, sediments and zooplankton of the NW Mediterranean Sea: Exploring links with microplastic abundance and accumulation in the marine food web

Natascha Schmidt , Javier Castro-Jiménez , Benjamin Oursel , Richard Sempere
Environmental Pollution, 2021, 272, pp.115970. ⟨10.1016/j.envpol.2020.115970⟩
Journal articles hal-02994089v2
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Environmental occurrence of phthalate and organophosphate esters in sediments across the Gulf of Lion (NW Mediterranean Sea)

Nigar Alkan , Ali Alkan , Javier Castro-Jiménez , Florian Royer , Laure Papillon
Science of the Total Environment, inPress, 760, pp.143412. ⟨10.1016/j.scitotenv.2020.143412⟩
Journal articles hal-02994869v2
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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⟩
Journal articles hal-03023799v1
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Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom

Philippe Massicotte , Rémi Amiraux , Marie-Pier Amyot , Philippe Archambault , Mathieu Ardyna
Earth System Science Data : Papers in open discussion, 2020, 12 (1), pp.151-176. ⟨10.5194/essd-12-151-2020⟩
Journal articles hal-02292721v1
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The composition and distribution of semi-labile dissolved organic matter across the southwest Pacific

Christos Panagiotopoulos , Mireille Pujo-Pay , Mar Benavides , France van Wambeke , Richard Sempéré
Biogeosciences, 2019, 16, pp.105-116. ⟨10.5194/bg-16-105-2019⟩
Journal articles insu-03668094v1
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Macro-litter in surface waters from the Rhone River: Plastic pollution and loading to the NW Mediterranean Sea

Javier Castro-Jiménez , Daniel González-Fernández , Michel Fornier , Natascha Schmidt , Richard Sempere
Marine Pollution Bulletin, 2019, 146, pp.60-66. ⟨10.1016/j.marpolbul.2019.05.067⟩
Journal articles hal-02151106v1
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Occurrence of perfluoroalkyl substances in the Bay of Marseille (NW Mediterranean Sea) and the Rhône River

Natascha Schmidt , Vincent Fauvelle , Javier Castro-Jiménez , Katixa Lajaunie-Salla , C. Pinazo
Marine Pollution Bulletin, 2019, 149, pp.110491. ⟨10.1016/j.marpolbul.2019.110491⟩
Journal articles hal-02265980v1
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Simultaneous determination of neutral sugars, alditols and anhydrosugars using anion-exchange chromatography with pulsed amperometric detection: Application for marine and atmospheric samples

Amel Nouara , Christos Panagiotopoulos , Richard Sempere
Marine Chemistry, 2019, 213, pp.24-32. ⟨10.1016/j.marchem.2019.05.002⟩
Journal articles hal-02140886v1
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Occurrence of organic plastic additives in surface waters of the Rhône River (France)

Natascha Schmidt , Javier Castro-Jiménez , Vincent Fauvelle , Melanie Ourgaud , Richard Sempere
Environmental Pollution, 2019, pp.113637. ⟨10.1016/j.envpol.2019.113637⟩
Journal articles hal-02366785v1
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Dicarboxylic and Oxocarboxylic Acids in the Arctic Coastal Ocean (Beaufort Sea-Mackenzie Margin)

Richard Sempéré , Mickael Vaïtilingom , Bruno Charrière , Kimitaka Kawamura , Christos Panagiotopoulos
Global Biogeochemical Cycles, 2019, 33, pp.927-940. ⟨10.1029/2018GB006165⟩
Journal articles insu-03668091v1
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The Amazon River -a major source of organic plastic additives to the tropical North Atlantic?

Natascha Schmidt , Vincent Fauvelle , Anouck Ody , Javier Castro-Jiménez , Julien Jouanno
Environmental Science and Technology, 2019, 53 (13), pp.7513-7521. ⟨10.1021/acs.est.9b01585⟩
Journal articles hal-02161028v2
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Phthalate Release from Plastic Fragments and Degradation in Seawater

Andrea Paluselli , Vincent Fauvelle , François Galgani , Richard Sempere
Environmental Science and Technology, 2019, 53 (1), pp.166-175. ⟨10.1021/acs.est.8b05083⟩
Journal articles hal-01974368v1
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Liquid chromatographic isolation of individual carbohydrates from environmental matrices for stable carbon analysis and radiocarbon dating

Amel Nouara , Christos Panagiotopoulos , Jérôme Balesdent , Kalliopi Violaki , Edouard Bard
Analytica Chimica Acta, 2019, 1067, pp.137-146. ⟨10.1016/j.aca.2019.03.028⟩
Journal articles hal-02130025v1
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Occurrence of phthalate acid esters (PAEs) in the northwestern Mediterranean Sea and the Rhone River

Andrea Paluselli , Yann Aminot , François Galgani , Sopheak Net , Richard Sempere
Progress in Oceanography, 2018, 163, pp.221-231. ⟨10.1016/j.pocean.2017.06.002⟩
Journal articles hal-01769499v2
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Atmospheric particle-bound organophosphate ester flame retardants and plasticizers in a North African Mediterranean coastal city (Bizerte, Tunisia)

Javier Castro-Jiménez , Badreddine Barhoumi , Marc Tedetti , Richard Sempere
Science of the Total Environment, 2018, 642, pp.383-393. ⟨10.1016/j.scitotenv.2018.06.010⟩
Journal articles hal-01810090v2
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Diazotrophic Trichodesmium impact on UV–Vis radiance and pigment composition in the western tropical South Pacific

Cecile Dupouy , Robert Frouin , Marc Tedetti , Morgane Maillard , Martine Rodier
Biogeosciences, 2018, 15 (16), pp.5249-5269. ⟨10.5194/bg-15-5249-2018⟩
Journal articles hal-01864724v1
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Preface of special issue of MERMEX project: Recent advances in the oceanography of the Mediterranean Sea

Richard Sempere , Cécile Guieu , Ivane Pairaud , Xavier Durrieu de Madron
Progress in Oceanography, 2018, 163, pp.1-6. ⟨10.1016/j.pocean.2018.03.014⟩
Journal articles hal-01768737v2
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Distribution of phthalates in Marseille Bay (NW Mediterranean Sea)

Andrea Paluselli , Vincent Fauvelle , Natascha Schmidt , François Galgani , Sopheak Net
Science of the Total Environment, 2018, 621 (5), pp.578-587. ⟨10.1016/j.scitotenv.2017.11.306⟩
Journal articles hal-01769518v2
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Occurrence of α,ω-dicarboxylic acids and ω-oxoacids in surface waters of the Rhone River and fluxes into the Mediterranean Sea

Richard Sempere , Bruno Charrìère , Javier Castro-Jiménez , Kimitaka Kawamura , Christos Panagiotopoulos
Progress in Oceanography, 2018, MERMEX project: Recent advances in the oceanography of the Mediterranean Sea, 163, pp.136-146. ⟨10.1016/j.pocean.2017.07.002⟩
Journal articles hal-01768630v2
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Sugars in atmospheric aerosols over the Eastern Mediterranean

C. Theodosi , Christos Panagiotopoulos , A. Nouara , P. Zarmpas , P. Nicolaou
Progress in Oceanography, 2018, MERMEX special issue, 163, pp.70-81. ⟨10.1016/j.pocean.2017.09.001⟩
Journal articles hal-01657239v1
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One-Single Extraction Procedure for the Simultaneous Determination of a Wide Range of Polar and Nonpolar Organic Contaminants in Seawater

Vincent Fauvelle , Javier Castro-Jimenez , Natascha Schmidt , Benoit Carlez , Christos Panagiotopoulos
Frontiers in Marine Science, 2018, 5, pp.295 - 295. ⟨10.3389/fmars.2018.00295⟩
Journal articles hal-01865497v1
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Levels and risk assessment of hydrocarbons and organochlorines in aerosols from a North African coastal city (Bizerte, Tunisia)

Badreddine Barhoumi , Javier Castro-Jiménez , Catherine Guigue , Madeleine Goutx , Richard Sempere
Environmental Pollution, 2018, 240, pp.422 - 431. ⟨10.1016/j.envpol.2018.04.109⟩
Journal articles hal-01789427v1
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Atmospheric fluxes of soluble organic C, N, and P to the Mediterranean Sea: Potential biogeochemical implications in the surface layer

K. Djaoudi , France van Wambeke , A. Barani , S. Hélias Nunige , Richard Sempere
Progress in Oceanography, 2018, 163, pp.59-69. ⟨10.1016/j.pocean.2017.07.008⟩
Journal articles hal-01787006v1
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Occurrence of microplastics in surface waters of the Gulf of Lion (NW Mediterranean Sea)

Natascha Schmidt , Delphine Thibault , François Galgani , Andrea Paluselli , Richard Sempere
Progress in Oceanography, 2018, MERMEX special issue, 163, pp.214-220. ⟨10.1016/j.pocean.2017.11.010⟩
Journal articles hal-01653893v1
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Occurrence, loading and exposure of atmospheric particle-bound POPs at the African and European edges of the western Mediterranean Sea.

Javier Castro-Jimenez , Badreddine Barhoumi , Andrea Paluselli , Marc Tedetti , Begoña Jiménez
Environmental Science and Technology, 2017, 51 (22), pp.10.1021/acs.est.7b04614. ⟨10.1021/acs.est.7b04614⟩
Journal articles hal-01621291v1
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Primary marine aerosol physical flux and chemical composition during a nutrient enrichment experiment in mesocosms in the Mediterranean Sea

Allison Schwier , Karine Sellegri , Sébastien Mas , Bruno Charrìère , Jorge Pey
Atmospheric Chemistry and Physics, 2017, 17 (23), pp.14645-14660. ⟨10.5194/acp-17-14645-2017⟩
Journal articles hal-02051675v1
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Evidence of atmospheric nanoparticle formation from emissions of marine microorganisms

K. Sellegri , J. Pey , C. Rose , A. Culot , H.L. Dewitt
Geophysical Research Letters, 2016, 43 (12), pp.6596-6603. ⟨10.1002/2016GL069389⟩
Journal articles insu-01344534v1
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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⟩
Journal articles hal-01164658v1
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Occurrence, fate, behavior and ecotoxicological state of phthalates in different environmental matrices

Net Sopheak , Richard Sempere , Anne Delmont , Andrea Paluselli , Baghdad Ouddane
Environmental Science and Technology, 2015, 49 (7), pp.4019-4035. ⟨10.1021/es505233b⟩
Journal articles hal-01150271v1

Le cycle du carbone dans l’océan

Edouard Bard , Richard Sempere
La lettre du Collège de France, 2015, 40, pp.38--39. ⟨10.4000/lettre-cdf.2102⟩
Journal articles hal-03772422v1
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Reliable quantification of phthalates in environmental matrices (air, water, sludge, sediment and soil): A review

Sopheak Net , Anne Delmont , Richard Sempere , Andrea Paluselli , Baghdad Ouddane
Science of the Total Environment, 2015, 515-516, pp.162-180. ⟨10.1016/j.scitotenv.2015.02.013⟩
Journal articles hal-01784708v1
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Microbial food web structural and functional responses to oyster and fish as top predators

Behzad Mostajir , Cécile Roques , Corinne Bouvier , Thierry Bouvier , 
 Éric Fouilland
Marine Ecology Progress Series, 2015, 535, pp.11-27. ⟨10.3354/meps11429⟩
Journal articles hal-01199541v2

Impact of air-sea exchanges on the Mediterranean marine boundary layer composition

Nicolas Marchand , J. Pey , Brice Temime-Roussel , H. Dewitt , S. Hellebust
Abstracts of Papers of the American Chemical Society, 2015, 249
Journal articles hal-01721512v1
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Variability of Solar Radiation and CDOM in Surface Coastal Waters of the Northwestern Mediterranean Sea

Richard Sempere , Julien Para , Marc Tedetti , Bruno Charrìère , Marc Mallet
Photochemistry and Photobiology, 2015, 91 (4), pp.851-861. ⟨10.1111/php.12434⟩
Journal articles hal-01799299v1

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⟩
Journal articles hal-01166011v1
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Bacterial carbon dependence on freshly produced phytoplankton exudates under different nutrient availability and grazing pressure conditions in coastal marine waters

Eric Fouilland , Imma Tolosa , Delphine Bonnet , Corinne Bouvier , Thierry Bouvier
FEMS Microbiology Ecology, 2014, 87 (3), pp.757-769. ⟨10.1111/1574-6941.12262⟩
Journal articles hal-01166008v1
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Composition and distribution of dissolved carbohydrates in the Beaufort Sea Mackenzie Margin (Arctic Ocean)

Christos Panagiotopoulos , Richard Sempere , Violaine Jacq , Bruno Charrìère
Marine Chemistry, 2014, 166, pp.92-102. ⟨10.1016/j.marchem.2014.09.004⟩
Journal articles hal-01057507v1
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Molecular level characterization of methyl sugars in marine high molecular weight dissolved organic matter

Christos Panagiotopoulos , Daniel Repeta , Laura Mathieu , Jean-François Rontani , Richard Sempéré
Marine Chemistry, 2013, 154, pp.34-45. ⟨10.1016/j.marchem.2013.04.003⟩
Journal articles hal-03627638v1
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UV/PAR radiations and DOM properties in surface coastal waters of the Canadian shelf of the Beaufort Sea during summer 2009

J. Para , Bruno Charrìère , Atsushi Matsuoka , W. Miller , Jean-Francois Rontani
Biogeosciences, 2013, 10, pp.2761-2774. ⟨10.5194/bg-10-2761-2013⟩
Journal articles hal-00808123v1

Microbial carbon and nitrogen production under experimental conditions combining warming with increased ultraviolet-B radiation in Mediterranean coastal waters

E. Fouilland , B. Mostajir , Jean-Pascal Torréton , M. Bouvy , Patrice Got
Journal of Experimental Marine Biology and Ecology, 2013, 439, pp.47-53
Journal articles hal-00751723v1
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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⟩
Journal articles hal-01166012v1
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Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation

P.Q Fu , Kimitaka Kawamura , Jie Chen , Bruno Charrìère , Richard Sempere
Biogeosciences, 2013, 10 (2), pp.653-667. ⟨10.5194/bg-10-653-2013⟩
Journal articles hal-02000694v1
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Distributions of low molecular weight dicarboxylic acids, ketoacids and α-dicarbonyls in the marine aerosols collected over the Arctic Ocean during late summer

Kimitaka Kawamura , K. Ono , E. Tachibana , Bruno Charrìère , Richard Sempere
Biogeosciences, 2012, 9 (11), pp.4725-4737. ⟨10.5194/bg-9-4725-2012⟩
Journal articles hal-02000706v1

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⟩
Journal articles hal-00703565v1
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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⟩
Journal articles 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⟩
Journal articles hal-02051678v1
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Organic carbon dynamics in the Mediterranean Sea: an integrated study

Chiara Santinelli , Richard Sempere , France van Wambeke , Bruno Charrìère , Alfredo Seritti
Global Biogeochemical Cycles, 2012, 26, pp.13. ⟨10.1029/2011GB004151⟩
Journal articles hal-00731024v1
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The composition and flux of particulate and dissolved carbohydrates from the Rhone River into the Mediterranean Sea

Christos Panagiotopoulos , Richard Sempere , Julien Para , Patrick Raimbault , Christophe Rabouille
Biogeosciences, 2012, 9, pp.1827-1844. ⟨10.5194/bg-9-1827-2012⟩
Journal articles hal-00701986v1
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Tracing the transport of colored dissolved organic matter in water masses of the Southern Beaufort Sea: relationship with hydrographic characteristics

Hideki Matsuoka , Annick Bricaud , Ronald Benner , Richard Sempere , Julien Para
Biogeosciences, 2012, 9 (3), pp.925-940. ⟨10.5194/bg-9-925-2012⟩
Journal articles hal-02050187v1
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Toward a mechanistic approach to modeling bacterial DOC pathways: a review.

Marie Eichinger , Jean-Christophe Poggiale , Richard Sempere
Science, 2011, Microbial carbon pump in the ocean, Jiao N., Azam F., Sanders S., editors. (ed.)., Microbial carbon pump in the ocean, Jiao N., Azam F., Sanders S., editors. (ed.)., pp.66-68. ⟨10.1126/science.opms.sb0001⟩
Journal articles hal-01166014v1
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Marine ecosystems’ responses to climatic and anthropogenic forcings in the Mediterranean

Cecile Guieu , Xavier Durrieu de Madron , Pascal Conan , Frédéric Gazeau , Claude Estournel
Progress in Oceanography, 2011, 91 (2), pp.97-166. ⟨10.1016/j.pocean.2011.02.003⟩
Journal articles hal-03452771v1
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Fluorescence and absorption properties of chromophoric dissolved organic matter (CDOM) in coastal surface waters of the northwestern Mediterranean Sea, influence of the Rhône River

Julien Para , Paula G. Coble , Bruno Charrìère , Marc Tedetti , Clément Fontana
Biogeosciences, 2010, 7 (12), pp.4083-4103. ⟨10.5194/bg-7-4083-2010⟩
Journal articles hal-00591454v1
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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⟩
Journal articles hal-01216817v1
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Fluorescence and absorption properties of chromophoric dissolved organic matter (CDOM) in coastal surface waters of the northwestern Mediterranean Sea, influence of the Rhône River

J. Para , P. G Coble , B. Charrière , M. Tedetti , C. Fontana
Biogeosciences, 2010, 7 (12), pp.4083-4103. ⟨10.5194/bg-7-4083-2010⟩
Journal articles hal-02051689v1

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
Journal articles hal-00514543v1
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Distribution of normalized water-leaving radiances at UV and visible wave bands in relation with chlorophyll a and colored detrital matter content in the southeast Pacific

Marc Tedetti , Bruno Charrìère , Annick Bricaud , Julien Para , Patrick Raimbault
Journal of Geophysical Research, 2010, 115 (C010), pp.1-12. ⟨10.1029/2009JC005289⟩
Journal articles hal-00456621v1

Comparative study of UV and visible light induced degradation of lipids in non-axenic senescent cells of Emiliania huxleyi

Stephane Christodoulou , Fabien Joux , Jean-Claude Marty , Richard Sempere , Jean-Francois Rontani
Marine Chemistry, 2010, 119, pp.139-152. ⟨10.1016/j.marchem.2010.01.007⟩
Journal articles hal-00691310v1
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Diel variability of heterotrophic bacterial production and underwater UV doses in the eastern South Pacific

France van Wambeke , M. Tedetti , S. Duhamel , Richard Sempere
Marine Ecology Progress Series, 2009, 387, pp.97-108. ⟨10.3354/meps08075⟩
Journal articles hal-02058593v1
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Contrasting effects of solar radiation and nitrates on the bioavailability of dissolved organic matter to marine bacteria

Marc Tedetti , Fabien Joux , Bruno Charrìère , Kenneth Mopper , Richard Sempere
Journal of Photochemistry and Photobiology A: Chemistry, 2009, 201 (2-3), pp.243-247. ⟨10.1016/j.jphotochem.2008.11.002⟩
Journal articles hal-02058596v2

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⟩
Journal articles hal-00403773v1
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Impact of sea-surface dust radiative forcing on the oceanic primary production: A 1D modeling approach applied to the West African coastal waters

Marc Mallet , Malik Chami , Bernard Gentili , Richard Sempere , Philippe Dubuisson
Geophysical Research Letters, 2009, 36 (15), pp.n/a-n/a. ⟨10.1029/2009gl039053⟩
Journal articles hal-01999313v1

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⟩
Journal articles hal-00416657v1

Physiological Alteration of the Marine Bacterium Vibrio angustum S14 Exposed to Simulated Sunlight During Growth

Maher Abboudi , Sabine Matallana Surget , Jean-Francois Rontani , Richard Sempere , Fabien Joux
Current Microbiology, 2008, pp.1-6. ⟨10.1007/s00284-008-9214-9⟩
Journal articles hal-00321321v1
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Distribution and bacterial availability of dissolved neutral sugars in the South East Pacific

Richard Sempere , M. Tedetti , Christos Panagiotopoulos , France van Wambeke
Biogeosciences, 2008, 5, pp.1165 - 1173. ⟨10.5194/bg-5-1165-2008⟩
Journal articles hal-02058362v1
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Distribution and bacterial availability of dissolved neutral sugars in the South East Pacific

Richard Sempere , Marc Tedetti , Christos Panagiotopoulos , Bruno Charrìère , France van Wambeke
Biogeosciences, 2008, 5, pp.1165-1173
Journal articles hal-00315633v1
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Physiological Alteration of the Marine Bacterium Vibrio angustum S14 Exposed to Simulated Sunlight During Growth

Maher Abboudi , Sabine Matallana Surget , Jean-Francois Rontani , Richard Sempere , Fabien Joux
Current Microbiology, 2008, 57 (5), pp.412-417. ⟨10.1007/s00284-008-9214-9⟩
Journal articles hal-02058368v1
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Effects of Photochemical Transformations of Dissolved Organic Matter on Bacterial Metabolism and Diversity in Three Contrasting Coastal Sites in the Northwestern Mediterranean Sea during Summer

M. Abboudi , W. H Jeffrey , J.-F. Ghiglione , Mireille Pujo-Pay , L. Oriol
Microbial ecology, 2008, 55 (2), pp.344-357. ⟨10.1007/s00248-007-9280-8⟩
Journal articles hal-02068305v1
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High penetration of ultraviolet radiation in the south east Pacific waters

Marc Tedetti , Richard Sempere , Alexander Vasilkov , Bruno Charrìère , David Nerini
Geophysical Research Letters, 2007, 34 (12), ⟨10.1029/2007gl029823⟩
Journal articles hal-01991643v1

Hydroxyl radical-induced photochemical formation of dicarboxylic acids from unsaturated fatty acid (oleic cid) in aqueous solution

Marc Tedetti , Kimitaka Kawamura , Masahiro Narukawa , Fabien Joux , Bruno Charrìère
Journal of Photochemistry and Photobiology A: Chemistry, 2007, 188, pp.135 - 139
Journal articles hal-00164167v1

Composition and degradation of marine particles with different settling velocities in the northwestern Mediterranean Sea

Madeleine Goutx , Stuart G. Wakeham , Cindy Lee , Marie Duflos , Catherine Guigue
Limnology and Oceanography, 2007, 52(4), pp.1645-1664
Journal articles hal-00164461v1

Effects of Photochemical Transformations of Dissolved Organic Matter on Bacterial Metabolism and Diversity in Three Contrasting Coastal Sites in the Northwestern Mediterranean Sea during Summer

Maher Abboudi , W.H. Jeffrey , Jean François Ghiglione , Mireille Pujo-Pay , L. Oriol
Microbial ecology, 2007, pp.1-13
Journal articles hal-00171279v1

Penetration of ultraviolet radiation in the marine environment. A review.

Marc Tedetti , Richard Sempere
Photochemistry and Photobiology, 2006, 82 (2), pp.389-97. ⟨10.1562/2005-11-09-IR-733⟩
Journal articles hal-00734184v1

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
Journal articles hal-00092722v1

Sugar dynamics in large particles during in vitro incubation experiments

Christos Panagiotopoulos , Richard Sempere
Marine Ecology Progress Series, 2006, XXX, pp.XX XX
Journal articles hal-00087382v1