Richard SEMPEREFonction actuelle [current position] : DR2 CNRS, Directeur du LMGEM, Biogéochimie |
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Address | LMGEM, CNRS UMR 6117, Case 901, Centre d'Oceanologie de Marseille, Campus de Luminy, 13 288 Marseille |
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Tel: 33-(0)4-91-82-92 -12
Fax: 33-(0)4 91 82 96 41 |
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richard.sempere@com.univmed.fr | |
| Page personnelle | http://www.com.univ-mrs.fr/~sempere/ |
THEMES DE RECHERCHE [AREAS OF RESEARCH]
DIPLOMES
FONCTIONS ANTERIEURES [PREVIOUS POSITIONS]
PUBLICATIONS
[422] Tamburini, C.,Goutx, M.,Guigue, C.,Garel, M.,Lefèvre, D.,Charrière, B.,Sempéré, R.,Pepa, S.,Peterson, M.L.,Wakeham, S.,Lee, C. (2009) Microbial alteration of sinking fecal pellets: Effects of a continuous increase in pressure that simulates descent in the water column. Deep-Sea Research II, 56 : 1533–1546.[474] Eichinger, M.,Koojman, S.,Sempéré, R.,Lefèvre, D.,Gregori, G.,Charrière, B.,Poggiale, J.C., (2009) DOC consumption and release by marine bacteria in pulsed-substrate environment: from experiments to modelling. Aquatic Microbial Ecology ,56 : 41-54
[429] Tedetti, M.,Joux, F.,Charrière, B.,Mopper, K.,Sempéré, R., (2009) Contrasting effects of solar radiation and nitrates on the bioavailability of DOM to marine bacteria. Journal of Photochemistry and Photobiology A: Chemistry (201): 243-247.
[431] Van wambeke, F.,Tedetti, M.,Duhamel, S.,Sempéré, R., (2009) Diel variability of heterotrophic bacterial production and underwater UV doses in the eastern South Pacific. Marine Ecology Progress Series (387): 97-108.
[472] Tedetti, M.,Charrière, B.,Bricaud, A.,Para, J.,Raimbault, P.,Sempéré, R., (2009 (In Press) ) Distribution of normalized water-leaving radiances at UV and visible wavebands in relation with chlorophyll a and colored detrital matter content in the South East Pacific. Journal of Geophysical Research - Oceans, .
[477] Sempéré, R.,Anderson, T.R.,Boutrif, M.,Charrière, B.,Durrieu de madron, X.,Eichinger, M.,Panagiotopoulos, C.,Tamburini, C.,Wilson, S., (2009) Dynamics of DOC in mesopelagic layer. Submitted
[478] Mallet, M.,Chami, M.,Gentili, B.,Sempéré, R., (2009) Impact of sea-surface dust radiative forcing on the oceanic Primary Production. A 1D modeling approach applied to the West African coastal waters.. Geophysical Research Letters, 108(D18), 8574, doi:10.1029/2002JD003273. 2009.
[442] Sempéré, R.,Tedetti, M.,Panagiotopoulos, C.,Charrière, B.,Van wambeke, F., (2008) Distribution and bacterial availability of dissolved neutral sugars in the South East Pacific. Biogeosciences (5): 1165-1173.
[432] Abboudi, M.,Mattalana, S.,Rontani, J.,Sempéré, R.,Joux, F., (2008) Physiological Alteration of the Marine Bacterium Vibrio angustum S14 Exposed to Simulated Sunlight During Growth. Cur. Microbiol., 10.1007/s00284-008-9214-9.
[310] Panagiotopoulos, C.,Sempere, R., (2007) Sugar dynamics in large particles during in vitro incubation experiments. Marine Ecology Progress Series, 330: 67-74
[359] Tedetti, M.,Kawamura, K.,Narukawa, M.,Joux, F.,Charrière, B.,Sempéré, R., (2007) Hydroxyl radical-induced photochemical formation of dicarboxylic acids from unsaturated fatty acid (oleic acid) in aqueous solution. Journal of Photochemistry and Photobiology A: Chemistry (188): 135-139.
[376] Goutx, M.,Wakeham, S.,Lee, C.,Duflos, M.,Guigue, C.,Liui, Z.,Moriceau, B.,Sempere, R.,Tedetti, M.,Zue, J., (2007) Composition and degradation of marine particles with different settling velocities in the northwestern Mediterranean Sea. Limnology and Oceanography (52): 1645-1664.
[377] Tedetti, M.,Sempéré, R.,Vasilkov, A.,Charrière, B.,Nérini, D.,Miller, W.L.,Kawamura, K.,Raimbault, P., (2007) High penetration of ultraviolet radiation in the south east Pacific waters. Geophysical Research Letters, 34, L12610, doi:10.1029/2007GL029823.
[402] Abboudi, M.,Jeffrey, W.H.,Ghiglione, J.F.,Pujopaay, M.,Oriol, L.,Sempere, R.,Charriere, B.,Joux, F., (2007) Effects of Photochemical Transformations of Dissolved Organic Matter.. Microbial Ecology.DOI 10.1007/s00248-007-9280-8.
[201] Tedetti, M.,Sempere, R., (2006) Penetration of Ultraviolet Radiation in the Marine Environment: A Review. Photochemistry and Photobiology (82): 389-397.
[204] Eichinger, M.,Poggiale, J.C.,Van wambeke, F.,Lefèvre, D.,Sempéré, R., (2006) Modeling DOC assimilation and bacterial growth efficiency in dilution cultures: a case study in the Northeast Atlantic Ocean. Aquatic Microbial Ecology, 43: 139-151.
[324] Sempere, R.,Tedetti, M.,Charriere, B.,Abboudi, M., (2006) Ultra-violet radiation may affect bacterial cycling of dissolved organic matter in the Mediterranean Sea: A review. CIESM, Production and fate of dissolved organic matter in the Mediterranean Sea. CIESM Workshop Monographs, 85-87, n°28, 128 pp.
[328] Tedetti, M.,Kawamura, K.,Charriere, B.,Chevalier, N.,Sempéré, R., (2006) Determination of Low Molecular Weight Dicarboxylic and Ketocarboxylic Acids in Seawater Samples. Analytical Chemistry (78): 6012-6018.
[123] Panagiotopoulos, C.,Sempere, R., (2005) The molecular distribution of combined aldoses in sinking particles in eutrophic and oligotrophic oceanic regimes. Marine Chemistry, 95: 11-49.
[171] Panagiotopoulos, C.,Sempere, R., (2005) Analytical methods for the determination of sugars in marine samples: A historical perspective and future directions. Limnology and Oceanography Methods. 3, 419-454.
[173] Sohrin, R.,Sempere, R., (2005) Seasonal variation in total organic carbon in the Northeast Atlantic in 2000-2001. J. Geophys. Res. VOL. 110, C10S90, doi:10.1029/2004JC002731
[226] Maixandeau, A.,Lefèvre, D.,Fernández, C.,Sempéré, R.,Sohrin, R.,Ras, J.,Van wambeke, F.,Caniaux, G.,Quéguiner, B., (2005) Mesoscale and seasonal variability of community production and respiration in the surface waters of the NE Atlantic Ocean. Deep Sea Res I, 52: 1663-1676
[113] Van wambeke, F.,Lefevre, D.,Prieur, L.,Sempere, R.,Bianchi, M.,Oubelkheir, K.,Bruyant, F., (2004) Distribution of microbial biomass,production, respiration,dissolved organic carbon and factors controling bacterial production across a geostrophic front (Almeria-Oran, SW Mediterranean Sea). Marine Ecology Progress Series, 269, 1-15.
[25] Sempere, R.,Kawamura, K., (2003) Interhemispheric contribution of a,b dicarboxylic acids and related polar compounds to water soluble organic carbon in the marine aerosols in relation to photochemical oxidation reactions,. Global Biogeochemical Cycles, 10.1029/2002GB001980
[24] Sempere, R.,Dafner, E.,Van wambeke, F.,Lefèvre, D.,Magen, C.,Allègre, S.,Bruyant, F.,Bianchi, M.,Prieur, L., (2003) Distribution and cycling of total organic carbon across the Almeria Oran Front. Biogeochemical implications.. J. Geophys. Res., Vol. 108, No. C11, 3361, 10.1029/2002JC001475
[161] Bianchi, A.,Calafat, A.,Dewit, R.,Garcin, J.,Tholosan, O.,Cacho, I.,Canals, M.,Fabres, J.,Grout, H.,Masque, P.,Sanchezcabeza, J.A.,Sempere, R. (2003) Microbial activities at the deep water-sediment boundary layer in two high productivity systems of the Alboran Sea (Western Mediterranean) : The Almeria Oran Front and the Malaga upwelling.. Oceanologica Acta. 25, 315-324.
[27] Panagiotopoulos, C.,Sempere, R.,Obernosterer, I.,Striby, L.,Goutx, M.,Van wambeke, F.,Gautier, S.,Lafont, R., (2002) Degradation of large organic particles in Southern Indian Ocean by using in vitro incubation experiments.. Organic Geochemistry, 33, 985-1000.
[364] Sempéré, R.,Panagiotopoulos, C.,Lafont, R.,Marroni, B.,Van wambeke, F., (2002) Total organic carbon dynamics in Aegean Sea. Influence of Black Sea inputs.. Journal of Marine Systems 33-34, 335-364.
[28] Dafner, E.,Sempere, R.,Bryden, H., (2001) Total organic carbon distribution through the Strait of Gibraltar in September.... Marine Chemistry, 73 : 233-252
[29] Obernosterer, I.,Sempere, R.,Herndl, G., (2001) Ultraviolet radiation a reversal of the bioavailability of DOM to marine bacteria. Aquatic Microbial Ecology, 24 :61-68.
[159] Grout, H.,Sempere, R.,Thill, A.,Calafat, A.,Prieur, L.,Canals, M., (2001) Morphological and chemical variability of colloids in the Almeria-Oran Front in the eastern Alboran Sea (SW Mediterranean Sea) : evidence by means of analytical electron microscopy. Limnology and Oceanography. 46 : 1347-1357.
[160] Dafner, E.,Gonzales-davila, M.,Santana-casiano, J.M.,Sempere, R., (2001) Total organic and inorganic carbon exchange through the Strait of Gibraltar in September 1997.. Deep Sea Research., 48 : 1217-1236.
[175] Arraes-mescoff, R.,Coppola, L.,Roy-barman, M.,Souhaut, M.,Tashikawa, K.,Jeandel, C.,Sempere, R.,Yoro, S., (2001) The behavior of Al, Mn, Ba, REE and Thorium isotopes during in vitro bacterial degradation of large marine particles.. Marine Chemistry, 73, 233-252.
[361] Panagiotopoulos, C.,Sempéré, R.,Lafont, R.,Kerhervé, P., (2001) Sub-ambient temperature effects on the separation of monosaccharides by high-performance anion exchange chromatography with pulsed amperometric detection.Application to marine chemistry.. Journal of Chromatography A 920, 13-22.
[3] Sempéré, R.,Charriere, B.,Cauwet, G.,Van-wambeke, F., (2000) Carbon inputs of the Rhône River to the Mediterranean Sea: Biogeochemical implications. Global Biogeochemical Cycles, 14(2): 669-681.
[22] Sempere, R.,Yoro, S.C.,Van wambeke, F.,Charrière, B., (2000) Microbial decomposition of large organic particles in northwestern Mediterranean sea. Marine Ecology Progress Series, 5. 198 : 61-72
[162] Dafner, E.,Sempere, R.,Gonzales, N.,Gomez, F.,Goutx, M., (1999) Cross Slope variations of dissolved organic carbon in the Gulf of Cadiz, NE Atlantic Ocean (February, 1998).. Marine Ecology Progress Series, 189 : 301-306.
[163] Dafner, E.,Sempere, R.,Yoro, SC.,Cauwet, G.,Agatova, A., (1999) Application of the wet oxidation method for dissolved organic carbon analysis in the Southern Ocean.. C. R. Acad. Sci. Paris. 329 : 345-350.
[164] Raimbault, P.,Pouvesle, W.,Diaz, F.,Garcia, N.,Sempere, R., (1999) Feasibility of using wet-oxidation and automated colorimetry for simultaneous determination of organic carbon, nitrogen and phosphorus dissolved in seawater.. Marine Chemistry, 66, 161-169.
[177] Lamy, F.,Bianchi, M.,Van wambeke, F.,Sempere, R.,Talbot, V., (1999) Use of data assimilation techniques to analyze the significance of ectoproteolytic activity measurements performed with the model substrate MCA-Leu.. Marine Ecology Progress Series, 177, 27-35.
[360] Yoro, S.C.,Panagiotopoulos, C.,Sempéré, R., (1999) Dissolved organic carbon contamination induced by filters and storage bottles. Water Research 33 (8), 1956-1959.
[184] Sempere, R.,Van wambeke, F.,Azeourmanian, H.,Chambaut, A.L.,Ferriere, L.,Bianchi, M., (1998) On the use of batch systems to determine DOC bacterial lability and bacterial growth efficiency in seawater samples.. In Integrated Marine System Analysis, ENIMSA, Eds. Bayens, J., F. Dehairs and L. Goyens, 233-238.
[329] Pages, J.,Torreton, JP.,Sempere, R., (1997) Dissolved organic carbon in coral-reefs lagoons, by high temperature catalytic oxidation and UV spectrometry. C.R. Acad. Sci. Paris, t324, Serie IIa, p.915-922
[165] Yoro, SC.,Sempere, R.,Turley, C.,Unanue, M.,Durrieudemadron, X.,Bianchi, M., (1997) Cross-slope variations of organic carbon and bacteria in the Gulf of Lions in relation to water dynamics (northwestern Mediterranean).. Marine Ecology Progress Series, 161: 255-264.
[166] Sempere, R.,Kawamura, K., (1996) Low molecular weight dicarboxylic acids and related polar compounds in the remote marine rain samples collected from western Pacific.. Atmospheric Environment 30, 1609-1619.
[167] Kawamura, K.,Sempere, R.,Imai, Y.,Fujii, Y.,Hayashi, M., (1996) Water soluble dicarboxylic acids and related compounds in Antarctic aerosols.. Journal of Geophysical Research, 101: 18, 721-18, 728.
[183] Bianchi, M.,Bianchi, A.,Goutx, M.,Marty, D.,Sempere, R.,Van wambeke, F., (1996) Degradation of organic matter by heterotrophic activity.. Integrated Marine system analysis, Eds. J. Bayens, F. Dehairs and L. Goyens. European Network for integrated Marine Systems Analysis, ENIMSA, 27-30.
[168] Kawamura, K.,Kosaka, M.,Sempere, R., (1995) Distributions and seasonnal changes of hydrocarbons in urban aerosols and rainwaters.. Geochemistry, 29: 1-15.
[169] Sempere, R.,Cauwet., G., (1995) Occurrence of organic colloids in the stratified estuary of the Krka River (Croatia).. Estuarine Coastal and Shelf Science. 40: 105-114.
[170] Sempere, R.,Cauwet, . G.,. randon, J., (1994) Ultrafiltration of seawater with a zirconium and aluminum oxide tubular membrane: application to the study of colloidal organic carbon distribution in an estuarine bottom nepheloid layer.. Marine Chemistry, 46: 49-60
[172] Sempere, . R.,Kawamura, K., (1994) Comparative distributions of dicarboxylic acids and related polar compounds in snow, rain and aerosols from urban atmosphere.. Atmospheric Environment. 28: 449-459.
[178] Sempere, R.,Cauwet, G., (1993) Dissolved and colloidal organic carbon in the Rhone Estuary: Comparizon of the UV-persulfate and HTCO method.. C. R. Acad. Sci. Paris, 317, 57-63.
[179] Sempere, R.,Charriere, B.,Cauwet, G., (1993) Importance of organic colloids in estuarine waters and continental margin.. Annales de L'institut Oceanographique, 69, 167-171.
[180] Naudin, JJ.,Cauwet, G.,Leveau, M.,Lochet, F.,Pauc, H.,Romano, JC.,Sempere, R., (1992) Le nepheloide benthique au large du Rhone. Transferts particulaires a l'interface continent-ocean.. Oceanologica Acta, 15, 621-638.
[181] Cauwet, G.,Sempere, R.,Saliot, A., (1990) DIssolved organic carbon in seawater: confirmation of previous underestimation.. C. R. Acad. Sci. Paris, t311, Serie II, 1061-1066.
[182] Scribe, P.,Pepe, C.,Fuche, C.,Barreau, C.,Sempere, R.,Bouloubassi, I.,Saliot, A., (1988) Application of the biogeochemical markers approach for determining the inputs and fate of biogenic and anthropogenic organic matter in the Rhone Delta: Non aromatic hydrocarbons and sterols associated. Water Pollution Research, 173-178.