Christiane Hudon

Research Scientist - Aquatic Plant Ecology Specialist

Current research and/or projects

Predict the vulnerability and sensitivity of the aquatic ecosystem to stressors

  • Cumulative impacts of human activities on the aquatic ecosystem and wetlands of the St. Lawrence
  • Environmental control of cyanobacteria in river systems
  • Effects of climate variations and water level conditions on the productivity and diversity of aquatic plants
  • Vulnerability of littoral communities to invasive plants
  • Eutrophication of the aquatic ecosystem

Professional activities / interests

Stream ecology, wetland dynamics, diversity and productivity of aquatic plants (macrophytes, periphyton, filamentous algae, phytoplankton) in relation to climate factors (temperature, sunlight), physical factors (level variations, current, transparency) and water chemical quality (nutrients)

Education and awards

International Joint Commission Certificate of Recognition

Environment Canada Excellence Award

Key publications

Hudon, C. and R. Carignan. 2008. Cumulative impacts of hydrology and human activities on water quality in the St. Lawrence River (Lake Saint-Pierre, Quebec, Canada). Can. J. Fish. Aquat. Sci. 65 (6): 1165-1180.

Vis, C., A. Cattaneo and C. Hudon. 2008. Shift from benthic filamentous chlorophytes to cyanobacteria following a gradient of nitrate depletion. J. Phycol. 43: 38-44.

Hudon, C. 2004. Managing St. Lawrence River discharge in times of climatic uncertainty: How water quantity affects wildlife, recreation and the economy. Proceedings of the 69th Annual North American Wildlife and Natural Resource Management Conference, Spokane, WA, March 22, 2004.

Hudon, C. 2000. Phytoplankton assemblages in the St. Lawrence River, downstream of its confluence with the Ottawa River, Quebec, Canada. Can. J. Fish. Aquat. Sci. 57 : 16–30.

Hudon, C. 1997. Impact of water-level fluctuations on St. Lawrence River aquatic vegetation. Can. J. Fish. Aquat. Sci. 54 : 2853–2865.

Hudon, C., R. Morin, J. Bunch and R. Harland. 1996. Carbon and nutrient output from the Great Whale River (Hudson Bay) and a comparison with other rivers around Quebec. Can J. Fish. Aquat. Sci. 53 : 1513–1525.

Research facility

7th Floor, 105 McGill Street
Montréal, QC H2Y 2E7


Associate Professor, University of Montreal

Fellow of the Canadian River Institute 

Member of the Interuniversity Limnology Research Group (GRIL)

Canadian co-leader and member of the Environment Technical Work Group of the International Lake Ontario – St. Lawrence River Study of the International Joint Commission