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Jean-Francois Lapierre

jf_planeJean-François Lapierre
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514-987-3000, poste 2927

Université du Québec à Montréal
Pavillon des sciences biologiques, SB-2805
2080 St-Urbain
Montréal, Québec
H2X 3X8



2008-2014: PhD in Biology, Département des Sciences Biologiques, Université du Québec à Montréal

2005-2008 : M.Sc. in environmental sciences, Département de Chimie-Biologie, Université du Québec à Trois-Rivières

2002-2005 : B.Sc. in biology, Département de Chimie-Biologie, Université du Québec à Trois-Rivieres




Lakes, rivers, estuaries, connectivity, biogeochemistry, DOC, CO2, fluorescence, photometry, photo-chemistry, bacteria, respiration, primary productivity 

The common topic of my research interests is the exchange of organic matter (connectivity) from terrestrial to aquatic ecosystems and among different aquatic systems as well as the impact of these exchanges on ecosystem functioning. During my PhD, I focus on the composition and origin of the dissolved organic carbon (DOC) as a controlling factor of boreal lakes partial pressure of CO2 (pCO2), the main determinant of lakes emission of greenhouse gases.

The overall objective is to refine our understanding of the role of DOC as a substrate for the production of CO2 in boreal lakes. More specifically, the main approach is to examine the links between catchments regional characteristics, DOC composition optical properties and origin and its biological and photo-chemical reactivity.



Stubbins, A. Lapierre, J.-F., Berggren, M., Prairie, Y.T., Dittmar, T. and del Giorgio P.A. in press. What’s in an EEM? Molecular signatures of dissolved organic matter fluorophores. Environmental Science and Technology. http://pubs.acs.org/doi/abs/10.1021/es502086e

Seekell, D.A., Lapierre, J.-F., Pace, M. L., Gudasz, C., Sobek, S., Tranvik, L.J. Regional-scale variation of dissolved organic carbon concentrations in Swedish lakes. Limnology and Oceanography 59(5): 1612-1620. http://www.aslo.org/lo/toc/vol_59/issue_5/1612.html

Lapierre, J.-F. and del Giorgio P.A. 2014. Partial coupling and differential regulation of biologically and photo-chemically labile dissolved organic carbon across boreal aquatic networks.  Biogeosciences. In press.http://www.biogeosciences-discuss.net/11/6673/2014/bgd-11-6673-2014.html

Campeau, A., Lapierre, J.F., Vachon, D. and del Giorgio P.A. 2014. Regional contribution of CO2 and CH4 fluxes from the fluvial network in a lowland boreal landscape of Québec. Global Biogeochemical Cycles.http://onlinelibrary.wiley.com/doi/10.1002/2013GB004685/abstract

Lapierre, J.-F., Guillemette, F., Berggren, M. and del Giorgio P.A. (2013). Increases in terrestrially derived carbon stimulate organic carbon processing and CO2 emissions in boreal aquatic ecosystems.Nature Communications 4, 2972. doi:10.1038/ncomms3972. http://www.nature.com/ncomms/2013/131213/ncomms3972/full/ncomms3972.html

Lapierre, J.-F. and P. A. del Giorgio (2012), Geographical and environmental drivers of regional differences in the lake pCO2 versus DOC relationship across northern landscapes, J. Geophys. Res.117, doi:10.1029/2012JG001945, altpdf

Frenette J.-J., Massicotte P., Lapierre J.-F. (2012) Colorful niches of phytoplankton shaped by the spatial connectivity in a large river ecosystem: A riverscape perspective. PLoS ONE, ref: PONE-D-11-16228, pdfalt

Pommier J, Frenette J.-J., Massicotte P., Lapierre J.-F. and Glémet H.(2012) Seston fatty acid composition and copepod RNA:DNA ratio with respect to the underwater light climate in fluvial Lac Saint-Pierre. Aquatic Sciences altpdf

Berggren M, del Giorgio P.A. and Lapierre J.-F. (2011). Major substrate control of the bacterioplankton respiratory quotient. ISME Journal, doi:10.1038/ismej.2011.157altpdf

Lapierre JF, Frenette JJ (2009) Effects of macrophytes and terrestrial inputs on fluorescent dissolved organic matter in a large river system. Aquat Sci 71:15-24alt pdf

Lapierre JF, Frenette JJ (2008) Advection of freshwater phytoplankton in the St. Lawrence River estuarine turbidity maximum as revealed by sulfur-stable isotopes. Mar Ecol-Prog Ser 372:19-29alt pdf

Frenette JJ, Thibeault P, Lapierre JF, Hamilton PB (2008) Presence of algae in freshwater ice cover of fluvial Lac Saint-Pierre (St. Lawrence river, Canada). J Phycol 44:284-291alt pdf


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