Our Team

Bruce Johnson, PhD

Dr. Johnson is President and co-founder of PSI. He has a B.Sc. in chemical engineering and a Ph.D. in chemical oceanography. He has developed a broad range of oceanographic instrumentation over 35 years in the field and has more than 100 peer-reviewed publications. His research has been in areas as diverse as gas exchange, atmospheric aerosols, Holocene climate, dynamics of methane in sediments, aquatic particle dynamics, sediment mechanics, aquatic chemical fractionation and ocean optics.


Craig McNeil, PhD

Dr. McNeil is Vice President and co-founder of PSI. He has a B.Sc. in physics/electronics and a Ph.D. in physical oceanography. He has developed and worked with dissolved gas sensors for more than 15 years and has published widely on measurements and interpretation of dissolved gases in the oceans. His special skills lie in modeling, including instrument simulations, instrument design, test and testing facilities design, and measurement interpretation.


Bryan Schofield

Bryan Schofield, PSI’s Design and Production Manager, is at the heart of most activities at Pro-Oceanus. He has 25 years of experience in instrument development and testing. His skills include machining, electronics, instrument design and instrument testing. He has broad experience in making laboratory and field measurements. Bryan also holds a Marine Master Certificate.


Mark Barry, PhD

After completing his PhD in chemical oceanography, Dr. Barry conducted research into sediment mechanics for two years as a Post-doctoral Fellow at Dalhousie University. Dr. Barry joined PSI in 2012 as a Junior Research and Development Scientist. He brings with him a broad background in oceanography, geology, chemistry and instrument development. His research encompasses coral growth, gas bubble dynamics, sediment failure, and methane hydrate physics and chemistry. He has developed various instruments, primarily in situ instruments to study sediment mechanics.