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Gagné, Jean-Pierre

Professeur en géochimie organique marine

Département : Institut des sciences de la mer de Rimouski

Campus : Campus de Rimouski

Courriel : jean-pierre_gagne@uqar.ca

Téléphone : 418 723-1986, poste 1870

Téléphone sans frais : 1 800 511-3382, poste 1870

Bureau : O-222

Domaines de recherche :

  • Océanographie
  • Géochimie organique marine
  • Chimie analytique
  • Contaminants, substances toxiques
  • Écotoxicologie

Recherches et expertises

Formation
  • Ph.D. Chimie analytique, Université de Montréal, 1993

Publications et communications

Publications

Articles soumis / Submited articles

  • Deflandre B., A. Gremare, J.-P. Gagné, L. Lefrançois and B. Sundby. 2003. Effects of sedimentary microenvironments on the vertical distributions of O2 and DOC in coastal marine sediments : Assessment of variability on small spatial scales. En révision pour Limnology and Oceanography.
  • Deflandre B., J.-P. Gagné., G. Desrosiers & B. Sundby Effects of sedimentary microenvironments on the porewater chemistry in a coastal marine sediment : a microcosm study (À soumettre)
  • Gagné, J.-P. and M. J. Bertrand. 2003. A simple interface for LC-MS analysis of organic compounds with medium volatility. J. Chromatogr. A.
  • Gagné, J.-P., B. Gouteux and M. J. Bertrand. 2003. Comparison of a novel high volume band compression injector with on-column and split/splitless injectors. J. Chromatogr. A
  • Tremblay L. and J.-P. Gagné. 2003. Quantification, origin and early diagenesis of sedimentary humic substances of the St.. Lawrence Estuary and the Saguenay Fjord, Québec. En correction pour Organic Geochemistry
  • Tremblay, L. and J.-P. Gagné. 2003. Dissolved and particule humic substances in the waters of the St. Lawrence Estuary and the Saguenay Fjord (Québec).
  • Mao J.-D, L. Tremblay, J-P Gagné, S. Kohl, J. Rice and K. Schmidt-Rohr.2003. Natural organic matter in the Saguenay Fjord and the St. Lawrence Estuary investigated by advanced solid-state NMR. 1. Structures and their variations with locations. Geochimica et Cosmochimica Acta
  • Tremblay, L . and J.P. Gagné. Distribution and biogeochemistry of sedimentary humic substances in the St. Lawrence Estuary and the Saguenay Fjord, Québec. Organic Geochemistry

Articles publiés / Published articles

  • Gouteux, B., M.Lebeuf,M. O. Hammill, D.C. G. Muir and J.-P. Gagne. 2005. Comparison of Toxaphene Congeners Levels in Five Seal Species from Eastern Canada : What Is the Importance of Biological Factors ? Environ. Sci. Technol. ; 39(6) ; 1448-1454.
  • Tremblay L., S. D. Kohl, J. A. Rice and J.-P. Gagné. 2005. Effects of temperature, salinity, and dissolved humic substances on the sorption of polycyclic aromatic hydrocarbons to estuarine particles Marine Chemistry, 96 : 21-34
  • Tremblay L., S. D. Kohl, J. A. Rice and J.-P. Gagné. 2005. Effects of lipids on the sorption of hydrophobic organic compounds on geosorbents : a case study using phenanthrene • Chemosphere 58 (2005) 1609-1620
  • Tremblay L., S. D. Kohl, J. A. Rice and J.-P. Gagné. 2005. Erratum to “Effects of lipids on the sorption of hydrophobic organic compounds on geosorbents : a case study using phenanthrene” [Chemosphere 58 (2005) 1609-1620] Chemosphere, 60 : 147
  • Ouellette, D. G. Desrosiers, J.-P. Gagné, F. Gilbert, J.-C. Poggiale, G. Stora and P. Blier. 2004. Effect of temperature on in vitro sediment-reworking processes by a gallery-biodiffusor, the polychaete Nereis (Neanthes) virens (Sars). Mar. Ecol. Progr. Ser. 266 : 185-193
  • Gouteux, B., Lebeuf, M., D. Muir and J.-P. Gagné. 2003. Level and temporal trends of toxaphene congeners in beluga whales (Delphinapterus leucas) from the St Lawrence Estuary, Canada. Environmental Science and Technology 37 :4603-4609
  • Gouteux, B., Lebeuf, M., and J.-P. Gagné. 2003. Temporal trends of toxaphene congeners in beluga whales (Delphinapterus leucas) from the St Lawrence Estuary, Canada. Organohalogen Compounds. 62 : 249-262
  • Tremblay, L . ; Kohl, S. D. ; Rice, J. A. et J.-P Gagné. 2003. Sorption of PAHs to natural sorbents : impacts of humic and lipid fractions. Dans : Humic Substances : Nature’s Most Versatile Materials ; Ghabbour, E.A. and Davies, G. (Eds.), Taylor and Francis Inc., New York . Chapter 9.
  • Tremblay, L. and J.-P. Gagné. 2002. Fast quantification of humic substances and organic matter by direct analysis of sediments using DRIFT spectroscopy. Anal. Chem. 74:2985-2993
  • Deflandre B., A. Mucci, J.-P. Gagné, C. Guignard and B. Sundby. 2002. Early diagenetic processes in coastal marine sediments disturbed by a catastrophic sedimentation event. Geochimica Cosmochimica Acta. 66 : 2547-2558.
  • Siah, A., A. Benosman, J. Pellerin, J.-P. Gagné and J.-C. Amiard, 2002. Seasonal gonad progesterone pattern in the soft-shell clam Mya arenaria. Comp. Biochem. Physiol. A 132:213-230
  • Gouteux, B., Lebeuf, M., S. Trottier and J.-P. Gagné. 2002. Analysis of six relevant toxaphene congeners in biological samples using ion trap MS/MS Chemosphere. 49 : 183-191
  • Tremblay, L. Gagné, J.-P. et Brindle, J.-R., 2001. Analysis and geochemical study of sedimentary humic substances using DRIFT spectroscopy . Dans : Understanding and Managing Organic Matter in Soils, Sediments and Waters ; Swift, R. S. and Spark, K. M. (Eds.), IHSS, St. Paul , MN , pp. 107-114 .
  • Deflandre B. and J.-P. Gagné. 2001. Determination of dissolved organic carbon (DOC) in nanoliter samples using UV spectroscopy. Water Research, 35 : 3057-3062
  • Gilbert F., G. Stora, G. Desrosiers, B. Deflandre, J.-M. Bertrand, J.-C. Poggiale and J.-P. Gagné. 2001. Alteration and release of aliphatic compounds by the polychaete Nereis virens (Sars) experimentally fed with hydrocarbons. JEMBE. 256 : 199-213
  • Tita G., G. Desrosiers, M. Vincx, J.-P. Gagné and J. Locat 2001. First meiofaunal survey of the Saguenay fjord (Quebec, Canada) : composition, biomass, and vertical zonation of nematodes assemblages. Cahiers de biologie marine. 42 : 263-274
  • B. Gouteux, M. Lebeuf, J.-P. Gagné and S. Trottier. 2000. Analysis of toxaphene congeners using ion trap MS/MS : Selection of parent and daughter ions. Organohalogen Compounds 47 :97-100
  • Deflandre B., A. Mucci, J.-P. Gagné, C. Guignard, B. Sundby & P. Anschutz. 2000. The 1996 flood event : disruption of the ongoing diagenesis of Saguenay fjord sediments Proceedings of the fifty-third Canadian Geotechnical Conference, 1 : 117-122.
  • G. Desrosiers, C. Savenkoff, M. Olivier, G. Stora, K. Juniper, A. Caron, J.-P. Gagné, L. Legendre, S. Muslow, J. Grant, S. Roy, A. Grahan, P. Scaps, N. Sylverberg, B. Klein, J.-É. Tremblay, J.-C. Thériault. 2000. Trophic structure of macrobenthos in the Gulf of St. Lawrence and on Scotian Shelf. Deep-Sea Research II. 47 : 663-697.
  • Pelletier, É., B. Deflandre, C. Nozais, G. Tita, G. Desrosiers, J.-P. Gagné et A. Mucci. 1999. Crue éclair de juillet 1996 dans la région du Saguenay (Québec). 2. Impacts sur les sédiments et le biote de la Baie des Ha !Ha ! et du fjord du Saquenay. Can. J. Fish. Aquat. Sci. 56, 2136-2147
  • Gilbert, F., G. Stora, G. Desrosiers, J.-P. Gagné, B. Deflandre and J. C. Bertrand. 1998. Changes in aliphatic hydrocarbon tracer composition during the digestive process of marine worm Nereis virens. Preliminary results. Chemosphere, 36 :553-560
  • Louchouarn P., M. Lucotte, R. Canuel, J.-P. Gagné and L.-F. Richard. 1997. Sources and early diagenesis of lignous and non-lignous organic matter in the st-Lawrence lower estuary and the Saguenay fjord. Marine Chemistry 58 :3-26
  • Packard, T.T., E. Berdalet, D. Blasco, S. Roy, L. St-Amand, B. Lagacé, K. Lee and J.-P. Gagné. 1996. Oxygen consumption in the marine bacterium, Pseudomonas nautica,, predicted from ETS activity and bisubstrate enzyme kinetics. J. Plankton Research. 18 :1819-1835
  • Packard, T.T., E. Berdalet, D. Blasco, S. Roy, L. St-Amand, B. Lagacé, K. Lee and J.-P. Gagné. 1996. CO2 production predicted from isocitrate dehydrogenase activity and bisubstrate enzyme kinetics in the marine bacterium, Pseudomonas nautica.. Aquatic Microbial Ecology, 11 :11-19
  • Berdalet E., S. Roy, L. St-Amand, B. Lagacé, T.T. Packard, and J.-P. Gagné. 1995. Co2 production, O2 consumption, isocitrate dehydrogenase and electron transport system in the marine bacteria Vibrio natriagens. Aquatic Microbial Ecology, 9 :211-217
  • Gagné, J.-P. , A. Carrier, L. Varfalvy and M. J. Bertrand. 1993. Evaluation of the performance of capillary liquid chromatography-fast atom bombardment mass spectrometry systems with precolumn addition of glycerol as a viscous matrix. J. Chromatogr 647 :13-20
  • Gagné, J.-P. , A. Carrier, L. Varfalvy and M. J. Bertrand. 1993. Origin of the decrease in chromatographic resolution induced by addition of viscous matrices in liquid chromatography-fast atom bombardment mass spectrometry systems. J. Chromatogr 647 :21-29
  • Carrier A., J.-P. Gagné and M. J. Bertrand. 1992. Limitations and effect of precolumn addition of thioglycerol in an LC-FABMS system. J. Chromatogr 591 :129-137
  • Gagné J.P., A. Carrier, and M. J. Bertrand. 1991. Source of band broadening in liquid-chromatographic fast-atom-bombardment mass-spectrometric system with pre-column addition of viscous matrix to the mobile phase. J Chromatogr. 554 : 47-59
  • Gagné J.P., A. Carrier, and M. J. Bertrand. 1991. Effect of the addition of viscous matrix to the mobile phase on chromatographic performance in liquid-chromatography fast-atom-bombardment mass-spectrometry. J Chromatogr. 554:61-71
  • Gagné J.P., S.G. Roussis and M. J. Bertrand. 1991.Simple direct liquid introduction system usable as an interface for liquid chromatography mass-spectrometry on quadrupole and magnetic-sector mass spectrometers. J Chromatogr. 554 : 293-304
  • Gagné, J.P. rt J.R. Brindle. 1985. Composés phénoliques en milieu côtier : Contribution de la région de Baie-Comeau et du fjord du Saguenay. Naturaliste can. 112 :57-64.
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