imageI am a Professor of Ocean Sciences in the Department of Earth, Ocean and Ecological Sciences at the University of Liverpool. I am interested in how phytoplankton survive in a range of marine environments, how they acquire nutrients and the role phytoplankton play in carbon and nutrient cycling and how they maintain the entire marine ecosystem.  I am interested in how ocean warming is affecting the marine environment, from ocean deoxygenation in the coastal and shelf sea environments, to the impact of sea ice decline on marine ecosystems in the Arctic.

I use a variety of tools including chemical analysis of inorganic and organic nutrients, stable nitrogen and carbon isotopes using the LIFER facility and more recently, molecular tools. I work in a wide variety of marine environments, ranging from the temperate coastal and shelf seas, to the subtropical open ocean and more recently the Arctic Ocean. I am an observational oceanographer and have participated in over 35 research cruises in the Atlantic and Pacific Oceans.

I have worked in Liverpool since 2007 and was promoted to Senior Lecturer in 2013 and Reader in 2015 and Professor in 2018. I completed two post-doctoral researcher associate (PDRA) positions in the USA. From 2003 to 2005, I was a WISE PDRA at the University of Southern California in Los Angeles. From 2005 to 2007, I was a PDRA at the University of Hawaii and conducted research at the Hawaii Ocean Time Series.