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Maranger, Roxane

Full Professor

  • Internal Director, GRIL
  • Member-at-Large and Early Career Committee Chair, ASLO (Association for the Sciences of Limnology and Oceanography), www.also.org


  • Telephone 514-343-7779 Pav. PAVILLON MARIE-VICTORIN \ Ext. F-234-6
Maranger, Roxane

Research expertise

Biogeochemistry and ecosystem impacts of microbial activities in the carbon and nitrogen cycle. Humans have greatly disturbed the global nitrogen cycle and the research in our lab is aimed at characterizing the fate and consequences of excess nitrogen in various ecosystems.

Our research covers various levels, from the role of bacteria to the effects of commercial fisheries on the global displacement of nitrogen, and the impact of invasive species on biogeochemical cycles. We have a number of projects under way involving Quebec and US lakes and rivers, the St. Lawrence Estuary and the Arctic Ocean.

Areas of expertise


* Students of my lab
  • Baulch, H.M., P.J. Dillon, R. Maranger, S. Schiff. 2011. Testing IPCC models of aquatic N2O flux for inland waters A Canadian Journal of Fisheries and Aquatic Sciences.
  • Tall, L.*, N. Caraco, R. Maranger. 2011. Denitrification hotspots: Dominant role of an invasive macrophyte (Trapa natans) in removing nitrogen from a tidal river. A Ecological Application.
  • Nguyen, D.*, R. Maranger. 2011. Respiration in Arctic sea ice. Polar Biology, DOI 10.1007/s00300-011-1040-z.
  • Forest, A. et 23 auteurs inclus R. Maranger et D. Nguyen*. 2011. Biogenic carbon flows through the planktonic food web of the Amundsen Gulf (Arctic Ocean): A synthesis of field measurements and inverse modeling analyses. A Progess in Oceanography.
  • Blanchet, C.*, G. Maltais-Landry*, R. Maranger. 2011. The role of aquatic plants as a indicator of N dynamics in lakes. A Water Science and Technology.
  • Thibodeau, B., M. Lehmann, J. Kowarzyk*, A. Mucci, Y. Gélinas, D. Gilbert, R. Maranger, M. Alkahati. 2010. Benthic nutrient fluxes along the Laurentian Channel: Impacts on the N budget of the St. Lawrence marine system. Estuarine, Coastal and Shelf Science, 20: 195-205.
  • Harrison, J.H., R. Maranger, R. Alexander, A. Giblin, P.A. Jacinthe, E. Mayorga, S. Seitzinger, D. Sobota, W. Wollheim. 2009. The Regional and Global Significance of Nitrogen Removal in Lakes and Reservoirs. Biogeochemistry, 10.1007/s10533-008-9272-x.
  • Maltais-Landry, G.*, R. Maranger, J. Brisson & F. Chazarenc. 2009. Greenhouse gas production and global efficiency of planted and artificially aerated constructed wetlands. Environmental Pollution, 157: 748-754.
  • Maltais-Landry, G.*, R. Maranger, J. Brisson & F. Chazarenc. 2009. Seasonal variations of nitrogen transformation and retention in planted and artificially aerated constructed wetlands. Water Research, 43: 535-545.
  • Maranger, R., N. Caraco, J. Duhamel*, M. Amyot. 2008. Nitrogen transfer from sea to land via commercial fisheries. Nature Geoscience, 2: 111-113.