Pascale Biron, PhD

Professor, Geography, Planning and Environment



Dr. Biron has studied at the Université de Montréal and at Leeds University during her doctoral research in fluvial geomorphology. She has joined Concordia in 1998. Her research involves river dynamics, stream restoration for fish habitat, sustainable management of agricultural streams, climate change impacts on rivers, large-scale flood modelling, three-dimensional computational fluid dynamics and freedom space for rivers. 

Professional affiliations

Canadian Geomorphology Research Group
Canadian Association of Geographers
American Geophysical Union
Member of GRIL (Groupe de Recherche Interuniversitaire en Limnologie)
Member of RIISQ (Réseau inondations intertectoriel du Québec)


Research activities

Projects

River dynamics and fish habitat in perturbed environments
Large-scale flood modelling
Hydrogeomorphological risks to road infrastructure
Numerical modelling of river dynamics
Freedom space for rivers


Selected publications

Refereed contributions (last 5 years)


  1. Gariépy-Girouard, E., Buffin-Bélanger, T., Savard, M., Biron, P.M. (in press) Histoire et perspectives d'avenir du canal Saint-Georges (Port-Menier, île d'Anticosti) : la valorisation du patrimoine culturel par l'aménagement fluvial. Le Naturaliste canadien (accepted November 29, 2022).
  2. Duguay, J., Biron, P.M., Lacey, J.R.W. (2022) Impact of density gradients on secondary flow structure at river confluences. Water Resources Research. 58, e2022WR032720, 1-17.
  3. Botrel, M., Hudon, C., Heffernan, J.B., Biron, P.M., Maranger, R. (2022) Climate-driven variations in nitrogen retention from a riverine submerged aquatic vegetation meadow. Water Resources Research, 58, e2022WR032678, 1-21.
  4. Duguay, J., Biron, P.M., Lacey, J.R.W. (2022) Aerial observations and numerical simulations confirm density-driven streamwise vortices at river confluences. Water Resources Research, 58, e2021WR031527, 1-19.
  5. Marchand, J.-P., Biron, P.M., Buffin-Bélanger, T., Larocque, M. (2022) High-resolution spatiotemporal analysis of hydrologic connectivity in the historical floodplain of straightened lowland agricultural streams. River Research and Applications, 38, 1061-1079.  
  6. Larocque, M., Biron, P.M. (2022) Le rôle des milieux humides et hydriques dans la résilience des écosystèmes fluviaux. In: Une Économie Écologique pour le Québec: Comment opérationnaliser une nécessaire transition, Zaga Mendez, A., Bisonnette, J., Dupras, J. (Eds), Les Presses de l'Université du Québec, 219-236.
  7. Duguay, J., Biron, P.M., Buffin-Bélanger, T. (2022) Large-scale turbulent mixing at amesoscale confluence assessed through drone imagery and eddy-resolved modelling. Earth Surface Processes and Landforms, 47, 345-363.
  8. Lemay, J., Biron, P.M., Boivin, M., Stämpfli, N., Foote, K. (2021) Can the Morphological Quality Index (MQI) be used to determine the ecological status of lowland rivers? Geomorphology, 395, 108002, 1-13.  
  9. Bessar, M.A., Choné, G., Lavoie, A., Buffin-Bélanger, T., Biron, P.M., Matte, P., Anctil, F. (2021) Comparative analysis of local and large-scale approaches to floodplain mapping. A case study of the Chaudière River. Canadian Water Resources Journal, 46, 4, 194-206.
  10. Choné, G., Biron, P.M., Buffin-Bélanger, T., Mazgareanu, I., Neal, J.C., Sampson, C.C. (2021) An assessment of large-scale flood modelling based on LiDAR data. Hydrological Processes, 35, e14333, 1-13. https://doi.org/10.1002/hyp.14333
  11. Foote, K., Biron, P.M., Grant, J.W.A. (2020) Impact of in-stream restoration structures on salmonid abundance and biomass: an updated meta-analysis. Canadian Journal of Fisheries and Aquatic Sciences, 77, 1574-1591.
  12. Mazgareanu, I, Biron, P.M., Buffin-Bélanger, T (2020) A fuzzy GIS model to determine confluence morphological sensitivity to tributary inputs at the watershed scale. Geomorphology, 357, 107095. https://doi.org/10.1016/j.geomorph.2020.107095
  13. Massé, S, Demers, S, Buffin-Bélanger, T, Biron, P.M., Choné, G, Massey W. (2020) Development of a mapping approach encompassing most fluvial processes: Lessons learned from the freedom space for rivers concept in Quebec (Canada). River Research and Applications, 36, 947-959.
  14. Biron, P.M., Buffin-Bélanger, T., Martel, N. (2019) Three-dimensional turbulent structures at a medium-sized confluence with and without an ice cover Earth Surface Processes and Landforms, 44, 3042-3056.
  15. Bulat, M., Biron, P.M., Lacey, R.W.J., Botrel, M., Hudon, C., Maranger, R. (2019) A 3D numerical model investigation of the impact of submerged macrophytes on flow dynamics in a large fluvial lake. Freshwater Biology, 64,1627-1642.
  16. Poulin, M, Evette, A, Tisserant, M, Keita, N, Breton, V, Biron, P., Raymond, P., Charbonneau, G., Falardeau, I. (2019) Le génie végétal pour la protection des berges de cours d'eau au Québec: état des lieux et perspectives pour les Basses-terres du Saint-Laurent. Sciences Eaux & Territoires. Article hors-série No 57, 7 p. (http://www.set-revue.fr/sites/default/files/articles/pdf/set-revue-genie-vegetal-berges-quebec-.pdf)
  17. Hurson, M, Biron, P.M. (2019) Quantifying hydrodynamic changes associated with bioengineered stabilization measures using numerical modelling. Ecological Engineering. 136, 118-124.
  18. Baril, A.-M, Biron, P.M., Grant, J.W.A. (2019) An assessment of an unsuccessful restoration project for lake sturgeon using 3D numerical modelling. North American Journal of Fisheries Management. 39(1), 69-81.
  19. Massé, S., Buffin-Bélanger, T., Biron, P.M., Ruiz, J. (2018) La portée et les limites des approches perspectives pour la gestion intégrée des inondations. Revue des Sciences de l'Eau, 31, 4, 341-362.
  20. Biron, P.M., Buffin-Bélanger, T., Martel, N. (2018) Mixing processes at an ice-covered river confluence. River Flow 2018, International Conference on Fluvial Hydraulics, Lyon, France, https://doi.org/10.1051/e3sconf/20184005037.
  21. Choné, G., Biron, P.M., Buffin-Bélanger, T. (2018) Flood hazard mapping techniques with LiDAR in the absence of bathymetry data. River Flow 2018, International Conference on Fluvial Hydraulics, Lyon, France, https://doi.org/10.1051/e3sconf/20184006005.
  22. Biron, P.M., Buffin-Bélanger, T., Massé, S. (2018) The need for river management and stream restoration practices to integrate hydrogeomorphology. The Canadian Geographer, 62, 2, 288-295.
  23. Baril, A.-M., Buszkiewicz, J.T., Biron, P.M., Phelps, Q.E. and Grant, J.W.A. (2018) Lake sturgeon (Acipenser fulvescens) spawning habitat: A quantitative review. Canadian Journal of Fisheries and Aquatic Sciences. 75, 925-933.
  24. Rousseau, Y.Y., Biron, P.M., Van de Wiel, M.J. (2018) Comparing the sensitivity of bank retreat to changes in biophysical conditions between two contrasting river reaches using a coupled morphodynamic model. Water, 10, 4, 518.
  25. Rousseau, Y.Y., Van De Wiel, M., Biron, P.M. (2017) Simulating bank erosion over an extended natural sinuous river reach using a universal slope stability algorithm coupled with a morphodynamic model. Geomorphology. 295, 690-704.
  26. Massey, W., Biron, P.M., Choné, G. (2017) Impacts of river bank stabilization using riprap on fish habitat in two contrasting environments. Earth Surface Processes and Landforms, 42, 635-646.
  27. Paradis, A., Biron, P.M. (2017) Integrating hydrogeomorphological concepts in management approaches of lowland agricultural streams: Perspectives, problems and prospects based on case studies in Quebec. Canadian Water Resources Journal, 42, 1, 54-69.

Non-refereed reports and papers

Biron, P.M., Thomas, I. (2019) Mieux vivre avec l'eau, pour être plus résilient face aux inondations. La Conversation, August, http://theconversation.com/mieux-vivre-avec-leau-pour-etre-plus-resilient-face-aux-inondations-122250  

Biron, P.M. (2019) Qui est en charge de la gestion des inondations au Québec? Options Politiques, August, https://policyoptions.irpp.org/fr/magazines/aout-2019/qui-est-en-charge-de-la-gestion-des-inondations-au-quebec/

Biron,P.M. (2017) La restauration de l’habitat du poisson en rivière : une recension des écrits. Rapport scientifique présenté à la Fondation de la Faune du Québec, 70 pp.


Teaching activities

GEOG 375 Hydrology
GEOG 377 Landform Evolution
GEOG 463 Advanced GIS
HENV 655 Environmental Modelling

Graduate Student Supervision (last 5 years)


  1. Massey, W., M.Sc. Impact of bank stabilization on fish habitat. Started: 2013. Completed 2017.
  2. Baril, A.-M., M.Sc. An assessment of a stream restoration project for yellow sturgeon in the Ouareau River, Quebec. Started 2014. Completed 2017 (Co-supervisor: Dr. J. Grant, Dept. of Biology, Concordia University)
  3. Rousseau, Y., Ph.D. A novel, generic approach to simulate bank retreat in alluvial river channels. Started: 2010. Completed 2018 (Co-supervisor: Dr. M. Van De Wiel)
  4. Volmar, E., M.Sc. An assessment of agricultural stream designs used in maintenance operations in Quebec. Started: 2014. In progress (Co-supervisor: Dr. S. Gaskin, Dept. of Civil Engineering, McGill University)
  5. Martel, N., M.Sc. Effet de la morphologie du chenal et de la structure de l’écoulement sur la mise en place et l’évolution d’un couvert de glace à une confluence. Started 2014. Completed 2018 (Co-supervisor: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie, UQAR)
  6. Massé, S., Ph.D. Le rôle de l'intégration des connaissances scientifiques dans la prise de décision quant à la gestion des cours par l’approche d’espace de liberté. Started 2014. In progress (Co-supervisors: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie, UQAR and Dr. J. Ruiz, Sciences de l'environnement, UQTR)
  7. Botrel, M., Ph.D. Rôle de la dynamique des courants dans la capacité de rétention et de transformation du phosphore et de l'azote dans les herbiers aquatiques. (co-supervisors: Dr. R. Maranger, Dept de biologie, Université de Montréal and Dr. C. Hudon, Environment Canada). Started 2015. Completed 2022.
  8. Bulat, M., M.Sc, Three-dimensional hydrodynamic modelling of the impact of macrophytes in Lake St-Pierre. Started 2016. Completed 2018. (co-supervisor: Dr. J. Lacey, Université de Sherbrooke)
  9. Marchand, J.-P., Ph.D. Restoration of riparian wetlands in highly degraded agricultural environments. Started: 2017. In progress. (co-supervisor: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie UQAR)
  10. Hugue, F. Post-doctoral fellow. Development of semi-automated tool to determine freedom space of rivers. Started: 2017. Completed 2018.
  11. Mazgareanu, I., M.Sc. Impact of tributaries on channel mobility downstream of confluences. Started: 2017. Completed 2019. (co-supervisor: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie, UQAR)
  12. Foote, K., Ph.D. Hydrogeomorphology and fish habitat restoration. Started: 2018. In progress. (co-supervisor: Dr. J. Grant, Biology, Concordia University)
  13. Stämpfli, N., PhD. Hydrogeomorphological approaches for agricultural stream restoration. Started: 2019. In progress
  14. Duguay, J., post-doctoral fellow. Turbulent flow structures at river confluences. Started: 2020. In progress.
  15. Couture, T., MSc Morphological Quality Index and fish diversity in agricultural streams. Started: 2020. In progress
  16. Dickson, E., MSc Impact of bank stabilization practices on bank erosion and flow structure. Started: 2021. In progress (co-supervisor: Dr. J. Lacey, Dépt génie civil, Université de Sherbrooke)
  17. Gava, M., MSc Development of GIS tools to assess hydrogeomorphological risks to road infrastructure. Started: 2021. In progress (co-supervisor: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie, UQAR)
  18. Bile, V., MSc Évaluation du risque lié aux aléashydrogéomorphologiques des petits cours d’eau dans le Bas-Saint-Laurent. Started: 2022. In progress (co-supervisor: Dr. T. Buffin-Bélanger, Dept de biologie, chimie et géographie, UQAR)
  19. Robert, A., MSc Impact de l’utilisation du territoire surl’ichtyofaune des rivières des Basses-Terres du St-Laurent. Started: 2022. In progress (co-supervisor: Dr. V. Fugère, Dépt des sciences de l'environnement, UQTR)
  20. Mzoughi, A., PhD Hydraulic modelling – calibration potential with SWOT. Started: 2022. In progress (co-supervisor: Dr. M. Trudel, dépt génie civil, U. Sherbrooke)
  21. Hosny, A., PhD Impact of small density differences on hydrodynamics of confluences. Started: 2022. In progress (co-supervisor: Dr. J. Lacey, U. Sherbrooke)

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