After graduating with a PhD in Marine Microbial Ecology from the Queen’s University of Belfast (Ireland), I commenced my career as a postdoctoral researcher at Plymouth Marine Laboratory (UK) where I was a part of the seminal Joint Global Ocean Flux Study (JGOFS). This led to a four year postdoctoral position at the School of Oceanography (University of British Columbia, Canada), followed by an appointment as a Phytoplankton Ecologist with the National Institute of Water and Atmosphere (NIWA, New Zealand). In New Zealand, I established the NIWA Centre for Chemical and Physical Oceanography – based at the Chemistry Department, University of Otago, Dunedin. In 2013, I took up my current appointment as a Professor of Marine Biogeochemistry at the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (Australia). I currently lead an ecological project “Biological Responses” within the Ocean Carbon and Ecosystems programme of the Antarctic Climate and Ecosystems (ACE) Co-operative Research Centre (CRC).