Helen Baulch

Assistant Professor, School of Environment and Sustainability and Global Institute for Water Security
Centennial Chair in Aquatic Ecosystem Biogeochemistry

(306) 966-2549


  • Doctor of Philosophy in Environmental and Life Sciences, Trent University
  • Master of Science in Biological Sciences, University of Alberta
  • Honours Bachelor of Science in Biology, University of Waterloo

Research Interests

Water quality; aquatic ecology; global change; biogeochemical cycles; greenhouse gas emissions; eutrophication; algal blooms; climate change

Current Research

  • Prediction and management of harmful algal blooms
  • Winter limnology: Understanding implications of declining periods of ice cover
  • Characterizing the importance of aquatic ecosystems in regional and global greenhouse gas budgets
  • Catchment nutrient dynamics in agricultural landscapes: improved modelling, characterization of wetland drainage effects, and assessment of beneficial management practices


Recent Grants/Awards

  • NSERC Strategic Project Grant: Understanding lake metabolism and algal blooms: New tools for the management of potable water sources.  (with John Giesy, Peter Leavitt, Paul Jones, Karsten Liber, Karl-Erich Lindenschmidt)
  • NSERC Discovery grant: Biogeochemistry of lakes in winter, and the implications of declining ice cover. 
  • NSERC Collaborate Research and Development Grant.  Identifying flood- and food-related limits to fish and wildlife production in the Saskatchewan River Delta.  (Tim Jardine, Helen Baulch, Keith Hobson and David Janz.)
  • NSERC CREATE for Water Security (Cherie Westbrook and others)

Select Publications

Google Scholar: https://scholar.google.ca/citations?hl=en&user=QV6IaoQAAAAJ

ResearchGate: http://www.researchgate.net/profile/Helen_Baulch 

  • Whitfield, C.J., H.M. Baulch, K.P. Chun, C.J. Westbrook.  2015. Beaver-mediated methane emission: The effects of population growth in Eurasia and the Americas.  Ambio 44 (1), 7-15. http://link.springer.com/article/10.1007%2Fs13280-014-0575-y
  • Crossman, J., M.N. Futter, P.G. Whitehead, E. Stainsby, H.M. Baulch, L. Jin. 2014. Flow pathways and nutrient transport mechanisms drive hydrochemical sensitivity to climate change across catchments with different geology and topography.  Hydrology and Earth System Sciences 18 (12), 5125-5148.
  • Crossman, J., M.N. Futter, S.K. Oni, P.G. Whitehead, L. Jin, D. Butterfield, H.M. Baulch, P.J. Dillon. 2013. Impacts of climate change on hydrology and water quality: Future proofing management strategies in the Lake Simcoe watershed, Canada.  Journal of Great Lakes Research 39 (1), 19-32.
  • Baulch, H.M., M.N. Futter, L. Jin, P.G. Whitehead, D. T. Woods, P.J. Dillon, D. A. Butterfield, S.K. Oni, L. P Aspden, E. M. O’Connor, J. Crossman.  2013. Phosphorus dynamics across intensively monitored subcatchments in the Beaver River.  Inland Waters. 3(2): 187-206. 
  • Jin, L., P.G. Whitehead, H.M. Baulch, P.J. Dillon, D.A. Butterfield, S.K. Oni, M.N. Futter, J. Crossman, E.M. O’Connor. 2013. Modelling phosphorus in Lake Simcoe and its subcatchments: scenario analysis to assess alternative management strategies. Inland Waters 3 (2), 207-220.
  • Baulch, H.M., P.J. Dillon, R. Maranger, J. J. Venkiteswaran, H. F. Wilson and S.L. Schiff. 2012. Night and day: Short-term variation in nitrogen chemistry and nitrous oxide emissions. Freshwater Biology. 57(3):509-525.  DOI: 10.1111/j.1365-2427.2011.02720.x. http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2427.2011.02720.x/abstract
  • Baulch, H.M., P.J. Dillon, R. Maranger, and S. L. Schiff.  2012. Budgeting N2O emissions from freshwater ecosystems: Revisiting the IPCC methodology.  Canadian Journal of Fisheries and Aquatic Sciences 69 (1), 145-160. http://www.nrcresearchpress.com/doi/abs/10.1139/f2011-144?journalCode=cjfas
  • Baulch, H.M., S. L. Schiff, R. Maranger and P.J. Dillon.  Nitrogen enrichment and the emissions of nitrous oxide from streams. 2011. Global Biogeochemical Cycles 25(4):4013-. DOI:10.1029/2011GB004047 http://onlinelibrary.wiley.com/doi/10.1029/2011GB004047/abstract
  • Baulch, H.M., P.J. Dillon, R. Maranger and S.L. Schiff.  2011. Diffusive and ebullitive fluxes of methane and nitrous oxide from streams: are bubble-mediated fluxes important?  Journal of Geophysical Research – Biogeosciences 116 (G4) http://onlinelibrary.wiley.com/doi/10.1029/2011JG001656/full
  • Baulch, H.M., S. Schiff, S. Thuss and P. J. Dillon. 2011. Isotopic character of N2O emitted from streams. Environmental Science and Technology 45: 4682-4688.  http://pubs.acs.org/doi/abs/10.1021/es104116a
  • Whitfield, C.J., J. Aherne, and H.M. Baulch.  2011. Controls on greenhouse gas concentrations in polymictic headwater lakes in Ireland.  Science of the Total Environment 410: 217-225.  http://dx.doi.org/10.1016/j.scitotenv.2011.09.045
  • Whitehead, P.G., L. Jin, H.M. Baulch, D.A. Butterfield, S.K. Oni, P.J. Dillon, M. Futter, A.J. Wade, R. North and E.A. O’Connor. 2011. Modelling phosphorus dynamics in multi-branch river systems: A study of the Black River, Lake Simcoe Canada.  Science of the Total Environment412–413: 315–323.  http://www.sciencedirect.com/science/article/pii/S0048969711011077
  • Baulch, H.M., J. J. Venkiteswaran, P.J. Dillon and R. Maranger. 2010. Revisiting the application of open-channel estimates of denitrification. Limnology and Oceanography Methods. 8:202-215.  http://www.aslo.org/lomethods/free/2010/0202.pdf
  • Baulch, H.M., M.A. Turner, D.L. Findlay, R.D. Vinebrooke, and W.F. Donahue. 2009. Benthic algal biomass – measurement approaches and measurement error. Canadian Journal of Fisheries and Aquatic Sciences. 66: 1989-2001. www.nrcresearchpress.com/doi/pdf/10.1139/F09-122
  • Turner, M.A., H.M. Baulch, S.E.M. Kasian, D.L. Findlay, R.D. Vinebrooke and D.M. McNicol. 2009. Resilience and hysteresis in benthic algal associations of a boreal shield lake recovering from acidification. Canadian Journal of Fisheries and Aquatic Sciences 66: 1875-1891. http://www.nrcresearchpress.com/doi/pdfplus/10.1139/F09-126
  • Barlow-Busch, L., H.M. Baulch, and W.D. Taylor. 2006. Phosphate uptake by seston and epilithon in the Grand River, southern Ontario. Aquatic Sciences 68: 181-192
  • Baulch, H.M., D.W. Schindler, M.A. Turner, D.L. Findlay, M.J. Paterson, and R.D Vinebrooke. 2005. Effects of temperature on benthic communities in a boreal lake: Implications of climate warming. Limnology and Oceanography 50 (5): 1377-1392.  www.aslo.org/lo/toc/vol_50/issue_5/1377.pdf
  • Baulch, H.M., T.W. Nord, M.Y. Ackerman, J.D. Dale, R.R.O. Hazewinkel, D.W. Schindler and R.D. Vinebrooke. 2003. Climate warming experiments: design of a mesocosm heating system. Limnology and Oceanography Methods. 1:10-15. http://www.aslo.org/lomethods/free/2003/0010.pdf

Current Courses

  • ENVS 821.3 - Sustainable Water Resources
  • ENVS 807.3 - Sustainability in Theory and Practice
  • BIOL 410.3 - Current Perspectives in Environmental Biology