Research Marine Cyanobacterial Proteomics Phytoplankton Proteomics in the Ross Sea Cobalt and Vitamin B12 Biogeochemistry Trace Metal-Phytoplankton Interactions in the Ross Sea Proteomics of Colimitation in Diatoms Metalloenzymes in Oxygen Minimum Zones GEOTRACES Cobalt Biogeochemistry Connecting Trace Elements and Metalloenzymes Across Marine Biogeochemical Gradients Development of a Marine Proteomic Biomarker Capability Development of a Biogeochemical AUV Sampler: Clio