Lemarchand, Karine

Professeure en bactériologie marine et écotoxicologie microbienne

Département : Institut des sciences de la mer de Rimouski

Campus : Campus de Rimouski

Courriel :

Téléphone : 418 723-1986, poste 1259

Téléphone sans frais : 1 800 511-3382, poste 1259

Bureau : O-256

Domaines de recherche :

  • Écologie microbienne marine
  • Bactériologie marine
  • Écotoxicologie microbienne
  • Structure et la fonction des communautés microbiennes en milieu froid
  • Biofilms et antifouling
  • Biorémédiation de polluants
  • Bio-indicateurs
  • Valorisation de la biomasse microbienne pour les biotechnologies marines

Researchgate | Google Scholar

Recherches et expertises

  • Professeure à l’ISMER depuis octobre 2003 
  • Post-doctorat à l’Institut de Recherche en Biotechnologie (IRB) 2003, Montréal, Canada 
  • Ph.D. en écologie microbienne 2001, U. Claude Bernard Lyon I, France

Publications et communications


Articles publiés / Published articles 

  • Latorre, MP, Schloss, IR, Almandoz, GO, Lemarchand, K, Flores-Melo, X, Massé-Beaulne, V, Ferreyra, GA (2018) Mixing processes at the pycnocline and vertical nitrate supply: Consequences for the microbial food web in San Jorge Gulf, Argentina. Oceanography, 31(4), 50-59. 
  • Osterheld, K., Millour, M., Pelletier, É., Magesky, A., Doiron, K., Lemarchand, K., Gagné, J. P. (2018) Nanotoxicity of Silver Nanoparticles: From Environmental Spill to Effects on Organisms. In Environmental Toxicity of Nanomaterials (pp. 205-254). CRC Press. Abstract
  • Doiron, K., Beaulieu, L., St-Louis, R., Lemarchand, K. (2018). Reduction of bacterial biofilm formation using marine natural antimicrobial peptides. Colloids and Surfaces B: Biointerfaces, 167, 524-530.
  • Turcotte F, Mouget J-L, Genard B, Lemarchand K, Deschênes J-S, Tremblay R (2016) Prophylactic effect ofHaslea ostrearia supernatant culture containing the pigment marennine to stabilize bivalve hatchery production. Aquatic Living Resources, 29(4), 401.
  • Millour, M., Doiron, K., Lemarchand, K., Gagné, J. P. (2015). Does the bacterial media culture chemistry affect the stability of nanoparticles in nanotoxicity assays?. Journal of Xenobiotics, 5(2).Abstract
  • Pharand P, Brousseau P, Gagné F ; Gosselin M, Lemarchand K, Soubaneh Y, St-Louis R, Fournier M, Gagné J-P (2016) Biological effects induced on the blue mussel (Mytilus edulis) exposed to current use pesticides (CUP) detected in Northern regions. EcoBim 2016, Journal of xenobiotics. 
  • Lebaron P, Cournoyer B, Lemarchand K, Nazaret S, Servais P (2015). Environmental and human pathogenic microorganisms. In Environmental Microbiology : Fundamentals and Applications (pp. 619-658). Springer Netherlands. 
  • K. Doiron, M. Millour, J-P. Gagné, K. Lemarchand. 2014. Combined effects of silver nanoparticles and humic and fulvic acids on Vibrio spendidusgrowth. Journal of Xenobiotics. 4:59-61 Abstract
  • C. Côté, K. Lemarchand, I. Desbiens, M. Barthes, K. Osterheld, M. Millour, É. Pelletier, M. Fournier, P. Brousseau. 2014. Immunotoxicity of silver nanoparticles in blue mussel (Mytilus edulis) . Journal of Xenobiotics. 4:68-69 Abstract
  • A-C. Tassel, R. St-Louis, K. Lemarchand, K. Doiron, S. Simard. 2014. Inhibition de la corrosion de l’acier doux en eau de mer naturelle par des extraits peptidiques de crabe des neiges (Chionoecetes opilio). Matériaux & Techniques. 102:6-7 Abstract
  • Moreau S, Mostajir B, Almandoz GO, Demers S, Hernando M, Lemarchand K, Lionard M, Mercier B, Roy S, Schloss IR, Thyssen M, Ferreyra GA. 2014. Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina) : a mesocosm study. AME. 72:155-173 Abstract
  • L. Berdjeb, E. Pelletier, J. Pellerin, J.-P. Gagné, K. Lemarchand . 2013. Contrasting responses of marine bacterial strains exposed to carboxylated single-walled carbon nanotubes. Aquatic Toxicology. 144-145 : 230-241
  • L. Seychelles, K. Doiron, C. Audet, R. Tremblay, F. Pernet, K. Lemarchand. 2013. Impact of arachidonic acid enrichment of live rotifer prey on bacterial communities in rotifer and larval fish cultures. Canadian Journal of Microbiology. 59(3) : 189-196 Abstract
  • K. Doiron, E. Pelletier, K. Lemarchand. 2012. Impact of polymer-coated silver nanoparticles on marine microbial communities : A microcosm study. Aquatic Toxicology. 124-125 : 22-27 /li>
  • Gauthier-Clerc, S., Boily, I., Fournier, M., Lemarchand, K. 2012. In vivo exposure of Mytilus edulisto living enteric bacteria : a threat for immune competency ? Environmental Science and Pollution Research. 1-9. doi:10.1007/s11356-012-1200-x
  • Genard, B., Pernet, F., Lemarchand, K., Boudry, P., Moraga, D., Tremblay, R. 2011. Physiological and biochemical changes associated with massive mortality events occurring in larvae of American oyster (Crassostrea virginica). Aquatic Living Resources. 24 : 247-260<
  • Seychelles, L.H., C. Audet, R. Tremblay, K. Lemarchand, and F. Pernet. 2011. Bacterial colonization of winter flounder Pseudopleuronectes americanusfed live feed enriched with three different commercial diets. Aquaculture Nutrition. 17 : 196-206 Abstract
  • Moreau, S., G. A. Ferreyra, B. Mercier, K. Lemarchand, M. Lionard, S. Roy, B. Mostajir, S. Roy, B. van Hardenberg, and S. Demers. 2010. Variability of the microbial community in the western Antarctic Peninsula from late fall to spring during a low ice cover year. Polar Biology. 33 : 1599-1614
  • De Sève M.A. , P. Poulin, É. Pelletier, and K. Lemarchand. 2010. Communauté de diatomées benthiques de deux marais côtiers de l’estuaire du Saint-Laurent (Canada). Revue des Sciences de l’Eau. 23 : 349-358 Abstract
  • Wang, X., G.-P. Yang, D. Lopez, G. Ferreyra, K. Lemarchand, and H. Xie. 2010. Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica. Antarctic Science. 22 : 145-156Abstract
  • Xie, H., Y. Zhang, K. Lemarchand, and P. Poulin. 2009. Microbial carbon monoxide uptake in the St. Lawrence estuarine system. Marine Ecology Progress Series 389:17-29.Abstract
  • Pelletier, É., C. Bonnet, and K. Lemarchand. 2009. Biofouling growth in cold estuarine waters and evaluation of some chitosan and copper anti-fouling paints. International Journal of Molecular Sciences 10:3209-3223.Abstract
  • Maynard, C., F. Berthiaume, K. Lemarchand, J. Harel, P. Payment, P. Bayardelle, L. Masson, and R. Brousseau. 2005. Waterborne Pathogen Detection Using Oligonucleotide-Based Microarrays. Appl. Environ. Microbiol. 71 : 8548-8557Abstract
  • Lemarchand, K., F. Berthiaume, C. Maynard, J. Harel, P. Payment, P. Bayardelle, L. Masson and R. Brousseau. 2005. Optimization of microbial DNA extraction and purification from raw wastewater samples for downstream pathogen detection by microarrays. J. Microbiol. Methods. 63 : 115-126 Abstract
  • Berthiaume, F., R. Brousseau, K. Lemarchand, L. Masson, C. Maynard, P. Payment, P. Bayardelle, and J. Harel. 2005. Application of DNA Microarray Technology for Wastewater Analysis. Final report of WERF stock No. 01HHE1, Co-published by IWA Publishing, London. 112 p 
  • Lemarchand, K., L. Masson, and R. Brousseau. 2004. Molecular biology and DNA microarray technology for microbial quality monitoring of water. Crit. Rev. Microbiol. 30 : 145-172 
  • Lemarchand, K. and P. Lebaron. 2003. Occurrence of Salmonellaspp. and Cryptosporidium spp. in a French coastal watershed : relationship with fecal indicators. FEMS Microbiol. Lett. 218 : 203-209
  • Lemarchand K., and P. Lebaron. 2002. Influence of the mutation frequency on the persistence of Salmonella enterica serotypes in natural waters. FEMS Microbiol. Ecol. 41. 125-131
  • Lemarchand K., N. Parthuisot, P. Catala, and P. Lebaron. 2001. Comparative assessment of epifluorescence microscopy, flow cytometry or solid phase cytometry used in the enumeration of specific bacteria in water. Aquat. Microb. Ecol. 25 : 301-309 
  • Baudart, J., K. Lemarchand, A. Brisabois, and P. Lebaron. 2000. Diversity of Salmonella strains isolated from the aquatic environment as determined by serotyping and amplification of the ribosomal DNA spacer regions. Appl. Environ. Microbiol. 66 : 1544-1552
  • Parthuisot, N., P. Catala, K. Lemarchand, J. Baudart, and P. Lebaron. 2000. Evaluation of ChemChrome V6 for bacterial viability assessment in waters. J. Appl. Microbiol. 89 : 370-380
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