Contact Pierre Gagnon:

Phone & Address


Member of the Statistical Society of Canada


M.Sc., Operational Research, University of Montreal

B.Sc., Physics, University of Montreal


Pierre Gagnon

Environmental Science Mathematician - Fluvial Ecosystem Research, Science and Technology, Water

CURRENT S&T / RESEARCH - Creates ecosystem modelling tools and uses them to predict the effects of human disturbance on the St. Lawrence River

  • Integration of empirical knowledge and formal models in forecasting methods
  • Time and space discretization in the representation of ecosystems
  • Statistical discovery tools for complex data tables
  • Planning and statistical analysis of experiments and sampling campaigns conducted by researchers at the St. Lawrence Centre


Took part as statistician in Atlantic Coast stock assessments

Took part in the study group on statistical methods of the International Council for the Exploration of the Sea (ICES)

Has worked with researchers in life sciences for over 15 years and has advised them in the areas of planning, modelling and statistical analysis


Hudon, C., P. Gagnon and M. Jean. 2005. Hydrological factors controlling the spread of common reed (Phragmites Australis) In the St. Lawrence River (Québec, Canada). Écoscience. 12(3): 347-357.

Forget, G., P. Gagnon, W. A. Sánchez, and B. J. Dutka. 2000. Overview of methods and results of the eight country international development research centre (IDRC) WaterTox project. Environ. Toxicol. 15 : 264-276.

Hudon, C., S. Lalonde and P. Gagnon. 2000. Ranking the effects of site exposure, plant growth form, water depth, and transparency on aquatic plant biomass. Can. J. Fish. Aquat. Sci. 57(Suppl. 1): 31-42.

Rondeau, B., D. Cossa, P. Gagnon and L. Bilodeau. 2000. Budget and sources of suspended sediment transported in the St. Lawrence River, Canada. Hydrological processes. 14(1): 21-36.

Castonguay, M., C. Rollet, A. Fréchet, P. Gagnon, D. Gilbert and J.-C. Brêthes. 1999. Distribution changes of Atlantic cod (Gadus morhua L.) in the northern Gulf of St Lawrence in relation to an oceanic cooling. ICES J. Mar. Sci. 56: 333-344.

Gagnon, P. 1991. Optimisation des campagnes d'échantillonnage: les programmes REGROUPE et PARTS. Rapp. Tech. Can. Sci. Halieut. Aquat. 1818: iii + 20 p.

Expertise Categories associated with this S&T Expert:

Nature & Wildlife
          Human impacts
     Ecosystems & Habitats
          Great Lakes-St. Lawrence