Xavier Bordeleau

Image Xavier Bordeleau
Research Scientist

Research Scientist at the Maurice Lamontagne Institute (DFO) conducting research on pinniped ecology (mostly grey and harbour seals in the St Lawrence Estuary and the Gulf) in relation to spatial ecology, predator/prey dynamics, trophic ecology and ecophysiology. Member of the National Marine Mammal Peer-Review Committee for DFO's Canadian Science Advisory Secretariat (CSAS). Adjunct Professor at Université de Sherbrooke. Expertise in fish ecophysiology and salmonid ecology (PhD at Dalhousie University).

Education and awards

Ph.D. in Biology - Dalhousie University (2019)

B.Sc. in Biology - Université de Sherbrooke (2014)


NSERC - Canada Graduate Scholarship-Doctoral (CGS D) (2018)

FRQNT - Scholarship for Doctoral Studies (2017)

NSERC - Michael Smith Foreign Study Supplement (2016)

NSERC - Canada Graduate Scholarship-Master’s (CGS M) (2015)

Key publications

  • Davidsen JG, Bordeleau X, Håvarstein SE, Whoriskey F, Power M, Crossin GT, Buhariwalla C, Gaudin P (2021) Marine habitat use and feeding ecology of introduced anadromous brown trout at the colonization front of the sub-Antarctic Kerguelen archipelago. Scientific Reports  11:11917.
  • Birnie-Gauvin K, Bordeleau X, Cooke SJ, Davidsen JG, Eldøy SH, Eliason EJ, Moore A, Aarestrup K (2021) Life-history strategies in salmonids: the role of physiology and its consequences. Biological Reviews  96(5): 2304-2320.
  • Eldøy SH, Bordeleau X, Lawrence MJ, Thorstad EB, Finstad AG, Whoriskey FG, Crossin GT, Cooke SJ, Aarestrup K, Rønning L, Sjursen AD, Davidsen JG (2021) The effects of nutritional state, sex and body size on the marine migration behaviour of sea trout. Marine Ecology Progress Series  665:185-200.
  • Hammill MO, Mosnier A, Bordeleau X (2021) An update of impacts of harvesting on the abundance of Nunavik beluga. Can. Sci. Advis. Sec. Res. Doc. 2021/003. iv + 21 p. 

  • Bordeleau X, Pardo SA, Chaput G, April J, Dempson B, Robertson M, Levy A, Jones R, Hutchings JA, Whoriskey FG, Crossin GT (2020) Spatio-temporal trends in the importance of iteroparity across Atlantic salmon populations of the northwest Atlantic. ICES  Journal of Marine Science 77(1):326-344.
  • Bordeleau X (2019) The post-spawning ecology of iteroparous salmonids: Basis of variability in migratory behaviour and survival, ecological importance and conservation implications. Ph.D. Thesis, Department of Biology, Dalhousie University. 168 pp.
  • Bordeleau X, Hatcher BG, Denny S, Whoriskey FG, Patterson DA, Crossin GT (2019) Nutritional correlates of the overwintering and seaward migratory decisions, and long-term survival of post-spawning Atlantic salmon. Conservation Physiology 7(1):1-13.
  • Eldøy SH, Bordeleau X, Davidsen JG, Crossin GT (2019) Individual repeatability in marine migratory behaviour: A multi-population assessment of anadromous brown trout tracked through consecutive feeding migrations. Frontiers in Ecology and Evolution 7:420.
  • Bordeleau X, Hatcher BG, Denny S, Fast MD, Whoriskey FG, Patterson DA, Crossin GT (2018) Consequences of captive breeding: Fitness implications for wild-origin, hatchery-spawned Atlantic salmon kelts upon their return to the wild. Biological Conservation 225: 144-153.
  • Strople LC, Filgueira R, Hatcher BG, Denny S, Bordeleau X, Whoriskey FG, Crossin GT (2018) The effect of environmental conditions on Atlantic salmon smolts' (Salmo Salar) bioenergetic requirements and migration through an inland sea. Environmental Biology of Fishes 101(10): 1467-1482.
  • Bordeleau X, Davidsen JG, Eldøy SH, Sjursen AD, Whoriskey FG, Crossin GT (2018) Nutritional correlates of spatiotemporal variations in the marine habitat use of brown trout, Salmo trutta, veteran migrants. Canadian Journal of Fisheries and Aquatic  Sciences 75(10): 1744-1754.
  • Davidsen JG, Eldøy SH, Sjursen AD, Rønning L, Bordeleau X, Daverdin M, Whoriskey F, Koksvik JI (2018) Marine migrations and area use of brown trout in Tosenfjorden, Bindal municipality. NTNU Vitenskapsmuseet naturhistorisk rapport 2018-8: 1-84.
  • Dazé Querry N, Bordeleau X, Harper KA, Basquill SP (2017) Multi-scale habitat characterization of herbaceous Atlantic Coastal Plain Flora on lakeshores in Nova Scotia. Botany 95(6): 587-598.
  • Crossin GT, Phillips RA, Lattin CR, Romero LM, Bordeleau X, Harris CM, Love OP, Williams TD (2017) Physiological costs of reproduction and carryover effects in annually versus biennially breeding albatrosses (Thalassarche spp.). Antarctic Science 29(2): 155-164.