Professor Emeritus Education B.S. Zoology, Duke University (1973) M.S. Marine Sciences, University of North Carolina, Chapel Hill (1975) Ph.D. Marine Sciences, University of North Carolina, Chapel Hill (1978) Research Research Areas: Chemical Oceanography Research Interests: Trace element biogeochemistry. Physiological ecology of phytoplankton. Dynamics of phytoplankton species composition and species succession; interactions with anthropogenic compounds