Principal Investigator

Brett Walker

Associate Professor

Canada Research Chair in Accelerator Mass Spectrometry
and Marine Biogeochemistry

Department of Earth and Environmental Science, University of Ottawa

Google Scholar, ResearchGate 

Graduate Students

Aislinn Fox

PhD student
afox047 (at)

Thesis: Evaluating Pan-Canadian sources and cycling of particulate organic matter using radiocarbon and stable carbon isotopes

Kayla McKee

MSc student
kmcke038 (at)

Thesis: Evaluating the Molecular Composition of Total Dissolved Organic Matter in Baffin Bay using 1H-NMR Spectroscopy

Liam Jasperse

MSc student
ljasp084 (at)

Thesis: Isotopic composition and cycling of dissolved inorganic carbon in the Canadian Arctic

Lauren O'Reilly

MSc student
lorei103 (at)

Thesis: High resolution size-age-distribution of dissolved organic matter using asymmetrical flow field-flow fractionation (A4F)

underGraduate Students

Shayna Dehaan

Honors BSc student

1H-NMR Evidence for the Cycling of Labile and Recalcitrant Compound Classes in the Ocean

Shanie Nikolajew

Honors BSc student

[co-advised with Clement Bataille]

Thesis: Radiocarbon and stable isotopes as tracers of Narwhal migration and foraging behavoir in the Canadian Arctic

Former Students

Sara Zeidan

MSc 2021

Currently working at Health Canada