Publications

Barth, L.E., Howell, E.T., Jackson, D.A., Sorichetti R.J., Thibeau, J., Smith, D., Hitch, C., Smith, M., Kaltenecker, G. Seasonal interplay of discharge and phosphorus concentration: year-round areal loads to western basin Lake Ontario from urban and urbanizing tributaries. Published online September 2025. Journal of Great Lakes Research, https://doi.org/10.1016/j.jglr.2025.102665.

Lawson, L., Giles, R.K., Barth, L.E., Richter, I.A., Howell, E.T., Jackson, D.A. From rivers to receiving waters: urban river impacts to the nearshore of large receiving waterbodies. Under review. Submitted to Journal of Great Lakes Research June 2025. 

Barth, L.E., Shuter, B.J., Sprules, W.G., Minns, C.K., Rusak, J.A.  2021. Evaluation of the responsiveness of the crustacean zooplankton community size spectrum to environmental change and an exotic invader in a sample of Canadian Shield lakes.  Canadian Journal of Fisheries and Aquatic Sciences. 78(8):197-217, https://doi.org/10.1139/cjfas-2020-0038.

Barth, L.E., Shuter, B.J., Sprules, W.G., Minns, C.K., Rusak, J.A. 2019. Calibration of the zooplankton community size spectrum as an indicator of change in Canadian Shield lakes.  Canadian Journal of Fisheries and Aquatic Sciences. 76(12): 2268-2287, https://doi.org/10.1139/cjfas-2018-0371.

Sprules, W.G., Barth, L.E. 2016.  Surfing the biomass size spectrum: some remarks on history, theory, and application.  Canadian Journal of Fisheries and Aquatic Sciences. 73(4): 477-495, https://doi.org/10.1139/cjfas-2015-0115.  

Barth, L.E., Sprules, W.G., Wells, M., and Coman, M. 2014. Seasonal changes in the diel vertical migration of Chaoborus punctipennis larval instars.  Canadian Journal of Fisheries and Aquatic Sciences. 71(5): 665-674, https://doi.org/10.1139/cjfas-2013-0440.

Advanced Analytical Experience

• Proficiency in scripting with dplyr programming language in R
• Mixed effects modelling
• Hierarchical linear models (HML)
• Boosted regression tree (BRT) analysis
• Size spectrum modelling (normalized abundance size spectrum (NASS), normalized biomass size spectrum (NBSS), maximum likelihood estimation (MLE))
• Loading calculations using stratified Beale ratio estimator, weighted regression on time, discharge, and season - Kalman filter (WRTDS-K), stratified event mean concentration (EMC)
• Modelling censored data
• Simulating discharge
• Hydrographic separation into baseflow and quickflow time series with event separation into rising/ falling limbs and peak flow