the takuvik


Département de Biologie /
Pavillon Alexandre-Vachon
1045, av. de la Médecine, local 2064
Université Laval
Québec (Québec) G1V 0A6
Phone : +1 418 656 2131 ext. 4880


Connie Lovejoy

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Professor (ULaval)

Phone : 418-656-2007
Fax : 418-656-2043

Postdoctorat: Institut Ciènces del Mar, CSIC' CMIMA, Barcelone Esp
Ph.D. Université Laval, Québec
B.Sc. University of California Davis, US

Research interests:
Current research is focused on Arctic marine microbes, especially planktonic microorganisms (phytoplankton and other protists, archaea and bacteria). These organisms are responsible for global carbon and mineral cycling on a planetary scale. My laboratory addresses such questions as: How many micro-organisms are there in the water column? What is their genetic and metabolic diversity? What factors determine growth and mortality?

Selected Publications:
Potvin E, Rochon A & Lovejoy C2013. Cyst-theca relationship of the Arctic dinoflagellate cyst Islandinium minutum (Dinophyceae) and phylogenetic position based on SSUrDNA and LSU rDNA. J. Phycol. Doi: 10.111/jpy.12089 (August 2013)
Rossi PG, Laurion I & Lovejoy C 2013. Distribution and identity of bacteria in subarctic permafrost thaw ponds. Aquatic Microbial Ecology. 60: 231-245
Monier A, Terrado R. Thaler M, Comeau AM, Medrinal E & Lovejoy C 2013. Upper Arctic Ocean water masses harbor distinct communities of heterotrophic flagellates. Biogeosciences 10: 4273-4286.
Hughes KA, Care SC, Cowan DA, Lovejoy C, Vincent WF & Wilmotte A 2013 Pristine Antarctica: threats and protection. Antarctic Science 25: 1-1.
Galand PE, Alonso-Sàez L, Bertilsson S, Lovejoy C & Casamayor EO 2013.  Contrasting activity patterns determined by BrdU incorporation in bacterial ribotypes from the Arctic Ocean in winter. Frontiers in microbiology. Doi 10.3389/fmicb.2013.00118.
Comeau AM, Philippe B, Thaler M, Gosselin M, Poulin M & Lovejoy C 2013  Protists in Arctic drift and land-fast sea ice J Phycol 49: 229-240.
Charvet S, Vincent WF, Comeau AM & Lovejoy C. 2012. Pyrosequencing analysis of the protist communities in a High Arctic meromictic lake. Frontiers in Microbiology-Extreme Microbiology. doi : 10.3389/fmicb.2012.00422.
Ghiglione J-F, Galand PE, Pomier T, Pedrós-Alió, C, Mass EW, Bakker K, Bertilsson S, Kirchman DL, Lovejoy C, Yager PL & Murray AE 2012 Pole to pole biogeography of surface and deep marine bacterial communities Proc Natl. Acad Sci. USA 43: 17633-17638..
Alonso-Saez L, Waller AS, Mende DR, Bakker K, Farnelid H, Yager PL, Lovejoy C, Tremblay J-E, Potvin M, Heinrich F, Estrada M, Riemann L, Bork P, Pedrós-Alió C & Bertilsson S 2012 A role for urea in the metabolism of Polar Archaea  Proc Natl. Acad Sci. USA 44: 17989-17994.
Luddington I, Kaczmarska I, & Lovejoy C 2012  Distance and character-based evaluation of the V4 region of the 18S rRNA gene for the identification of diatoms (Bacillariophyceae). PLoS One 9:e45664
Toupont N, Mohit V, Linossier I, Bourgougnon N, Myrand B, Olivier F, Lovejoy C & Tremblay R 2012   Effects of biofilm age on Mytilus edulis settlement. Biofouling 28: 9, doi:10.1080/08927014.2012.725202.
Blais M, Tremblay, J-É, Jungblut AD, Gagnon J, Martin, J, Thaler M, & Lovejoy C 2012 Nitrogen fixation and identification of potential diazotrophs in the Canadian Arctic . Global Biogeochemical Cycles  26: GB3022, doi:10.1029/2011GB004096.
Jungblut AD, Vincent W F & Lovejoy C 2012 Eukaryotes in Arctic and Antarctic cyanobacterial mats. FEMS Microbiology Ecology. 82: 416-428
Comeau AM, Harding T, Vincent WF & Lovejoy C 2012 Vertical distribution of microbial communities in a perennially-stratified Arctic lake with saline, anoxic bottom waters. Nature Scientific Reports 2: 604 |doi: 10.1038/srep00604
Terrado R, Scarcella K, Thaler M, Vincent WF & Lovejoy C 2012 Small phytoplankton in Arctic Seas: Vulnerability to climate change Biodiversity doi: 10.1080/14888386.2012.704839.
Tremblay J-É, Robert D, Varela DE, Lovejoy C, & others  2012 Current state and trends in Canadian Arctic marine ecosystems: I. Primary production. Climate Change doi 10.1007/s10584-012-0496-3.
Darnis G, Robert D, Pomerleau C, Link H, Archambault, P, Nelson J, Geoffroy M, Tremblay J-E, Lovejoy C, & others. 2012 current state and trends in Canadian Arctic marine ecosystems: II. Heterotrophic food web, pelagic-benthic coupling and biodiversity. Climate Change doi: 10.1007/s10584-012-0483-8.
Lionard M, Péquin B, Lovejoy C & Vincent WF 2012 Benthic cyanobacterial mats in the high Arctic: mulit-layer structure and fluorescence responses to osmotic stress. Frontiers Microbiol. 3:140. doi: 10.3389/fmicb.2012.00140.
Thaler M & Lovejoy C 2012 Distribution and diversity of a protist predator Cryothecomonas Cercozoa in Arctic Marine Waters. J Euk Microbiol 59: 291-299.
Motard-Côté  J, Levasseur, M, Scarratt M, Michaud S, Gratton Y, Rivkin R, Keats K, Gosselin M, Tremblay J-É, Kiene R & Lovejoy C 2012 Distribution and metabolism of dimethylsulfoniopropionate (DMSP) and phylogenetic affiliation of DMSP-assimilating bacteria in northern Baffin Bay/Lancaster Sound JGR-Oceans 117: C00G11.
Varin T, Lovejoy C, Jungblut AE, Vincent WF & Corbeil J 2012 Metagenomic analysis of stress genes in microbial mat communities from Antarctica and the extreme High Arctic. Appl Environ Microbiol 78: 549-559
Comeau, AM, Li WKW, Tremblay J-É, Carmack, EC & Lovejoy C 2011 Changes in Arctic Ocean microbial community structure following the 2007 record sea ice minimum PloS One 6: e27492
Charvet  S, Vincent WF & Lovejoy C 2012 Chrysophytes and other protists in High Arctic lakes: molecular gene surveys, pigment signatures and microscopy. Polar Biol 35:733-748.
Luce M, Scarratt M, Michaud S, Kiene R, Lovejoy C & others 2011 Distribution and microbial metabolism of dimethylsulfoniopropionate and dimethylsulfide during the 2007 Arctic ice minimum. JGR Oceans 116, C00G06.
Veillette J, Lovejoy C, Potvin M, Harding T, Jungblut AD, & others 2011. Milne Fiord epishelf lake: A coastal Arctic ecosystem vulnerable to climate change. Écoscience 18: doi 10.298/18-3-3443.
Terrado R, Medrinal E, Dasilva C, Thaler M, Vincent WF & Lovejoy C 2011 Protist community composition during spring in an Arctic flaw lead polynya. Polar Biol 34:1901-1914.
Harding T, Jungblut AD, Lovejoy C & Vincent WF, 2011 Microbes in High Arctic snow and implications for the cold biosphere, Appl Environ Microbiol 77: 3234-3243.
Lovejoy C & Potvin M 2011 Microbial eukaryotic distribution in a dynamic Beaufort Sea and the Arctic Ocean. J  Plank Res 33: 431-444.
Lovejoy C., Galand PE & Kirchman DL 2010 Microbial diversity in the Arctic Ocean and surrounding seas. Marine Biodiversity 41:5-12.
Varin T, Lovejoy C, Jungblut AD, Vincent WF & Corbeil J (2010) Metagenomic profiling of Arctic microbial mat communities as nutrient scavenging and recycling systems. Limnol Oceanogr 55: 1901-1911. 
Kirchman DL, Cottrell MT & Lovejoy C 2010.The structure of bacterial communities in the western Arctic Ocean as revealed by pyrosequencing of 16S rRNA genes. Environ Microbiol 12: 1132-1143.
Archambault P, Snelgrove PVR, Fisher JAD, Gagnon J-M, Garbary DJ, Harvey M, Kinchington E, Lesage V, Levesque M, Lovejoy C & others 2010 From sea to sea: Canada's three oceans of biodiversity. PLoS ONE 58: e12182.
Royer S-J, Levasseur M, Lizotte M, Arychuk M, Scarratt MG, Wong CS, Lovejoy C & others 2010  Microbial dimethylsulfoniopropionate (DMSP) dynamics along a natural iron gradient in the northeast subarctic Pacific. Limnol Oceanogr 55: 1614-1626.
Jungblut AD, Lovejoy C & Vincent WF 2010 Global distribution of cyanobacterial ecotypes in the cold biosphere. ISME J 4:191-202.
Galand PE, Potvin M, Casamayor EO & Lovejoy C 2010 Hydrography shapes bacterial biogeography of the deep Arctic Ocean. ISME J 4: 564-576.
Li WKW, McLaughlin FA, Lovejoy C & Carmack EC 2009 Smallest algae thrive as the Arctic Ocean freshens. Science 326: 539-539.
Galand PE, Casamayor EO, Kirchman DL & Lovejoy C 2009 Ecology of the rare microbial biosphere of the Arctic Ocean. Proc Natl Acad Sci USA 106: 22427-22432.
Galand PE, Casamayor EO, Kirchman DL, Potvin M, Lovejoy C 2009 Unique archaeal assemblages in the Arctic Ocean unveiled by massively parallel tag sequencing ISME J 3: 860-869
Vincent WF, Whyte LG, Lovejoy C, Greer CW, Laurion I, Suttle CA, Corbeil J & Mueller DR 2009 Arctic microbial ecosystems and impacts of extreme warming during the International Polar Year. Polar Sci 3:171-180.
Terrado R, Vincent WF & Lovejoy C 2009 Mesopelagic protists: diversity and succession in a coastal Arctic ecosystem. Aquat Microb Ecol 56: 25-39.
Kaczmarska, I, Lovejoy, C, Potvin M & MacGillivary M, 2009Morphological and molecular characteristics of selected species of Minidiscus (Bacillariophyta, Thalassiosiraceae). Eur J Phycol 44: 461-475.
Potvin M & Lovejoy C 2009PCR based diversity estimates of artificial and environmental 18S rRNA gene libraries. Euk J Microbiol 56:174-181.
Pouliot J, Galand PE, Lovejoy C & Vincent WF, 2009 Vertical structure of archaeal communities and the distribution of ammonia monooxygenase A gene variants in two meromictic High Arctic lakes. Environ Microbiol 11: 687-699.
Galand PE, Lovejoy C, Hamilton AK, Ingram RG, Pedneault E & Carmack EC 2009 Archeaeal diversity and gene for ammonia oxidation are coupled to oceanic circulation. Environ Microbiol 11: 971-980.
Trottet A, Roy S, Tamigneaux E, Lovejoy C & Tremblay R 2009 Impact of suspended mussels (Mytilus edulis L.) on plankton communities in a Magdalen Islands lagoon (Québec, Canada): A mesocosm approach. J Exp Mar Biol Ecol 365: 103-115.
Garneau M-É, Vincent WF, Terrado R & Lovejoy C 2009  Importance of particle-associated bacterial heterotrophy in a coastal Arctic ecosystem. J Mar Syst 75: 185-197.
Vaqué D, Guadayol O, Peters F, Felipe J, Angel-Ripoll L, Terrado R, Lovejoy C & Pedrós-Alió C 2008Seasonal changes in planktonic bacterivory rates under the ice-covered Coastal Arctic Ocean. Limnol Oceanogr 53: 2427-2438.
Garneau M-É, Roy S, Lovejoy C, Gratton Y & Vincent WF 2008 Seasonal dynamics of bacterial biomass and production in the coastal Arctic Ocean. J Geophys Res 113: C07S91.
Trottet S,  Roy S, Tamigneaux E, Lovejoy C & Tremblay R 2008  Influence of suspended mussel farming on planktonic communities in Grand-Entrée Lagoon (Magdalen Islands Québec, Canada) Aquiculture 276: 91-102.
Galand PE, Lovejoy C, Pouliot J & Vincent WF 2008 Heterogeneous archaeal communities in a particle rich environment of an Arctic Shelf  Ecosystem J Mar Sys 74: SS1: 774-782
Terrado R, Lovejoy C, Massana R & Vincent WF, 2008 Microbial food web responses to light and nutrients beneath arctic sea ice during the winter-spring transition. J Mar Sys 74: SS1: 964-977.
Hamilton AK, Lovejoy C, Galand PE & Ingram RG 2008Water masses and biogeography of picoeukaryote communities in a cold hydrographically complex system Limnol Oceanogr 53: 922-935.
Galand PE, Lovejoy C, Pouliot J, Garneau M-É & Vincent WF 2008  Diverse microbial communities and heterotrophic production in a stamukhi lake: a coastal arctic ecosystem vulnerable to climate change.  Limnol Oceanogr 53:813-823.
Sala MM, Terrado R, Lovejoy C, Unrein F & Pedròs-Aliò C 2008 Under ice pelagic  bacterioplankton metabolic diversity over winter and spring in the Coastal Arctic Ocean. Environ Microbiol 10: 942-949.
39.  Hollibaugh JT, Lovejoy C & Murray AE 2007 Microbiology in Polar Oceans. Oceanography 20:140-145.
Lovejoy C, et al. 2007 Distribution, phylogeny and growth of cold-adapted picoprasinophytes in Arctic seas. J Phycol 33: 78-89.
Trottet A, Roy S, Tamigneaux E & Lovejoy C 2007 Importance of heterotrophic planktonic communities in a mussel culture environment: the Grande Entree lagoon, Magdalen Islands (Quebec, Canada). Mar Biol 151: 377-392.
Not F, Valentin K, Romari K, Lovejoy C, Massana R, Töbe K, Vaulot D & Medlin L, 2007 Picobiliphytes: A marine picoplanktonic algal group with unknown affinities to other eukaryotes. Science 315: 253-255.

Book Chapters
Nelson John, et al (in press) Biodiversity and biogeography of the Lower Trophic taxa of the Pacific Arctic Region—Sensitivities to Climate Change in Grebmeier, J.M., W. Maslowski, J. Zhao (Editors) The Pacific Arctic Sector: Status and Trends. Springer Publishing Co., New York, New York, June 2013.
Lovejoy C.  2012 Polar Marine Microbiology, Chapter 10 in Miller, R. and Whyte, L.G. Editors) 2012. Polar Microbiology: Life in a Deepfreeze. ASM Press, Washington 312 pp.