The Coastal & Oceanic Plankton Ecology, Production & Observation Database (COPEPOD) is an online database of plankton abundance, biomass, and composition data compiled from a global assortment of cruises, projects, and institutional holdings.   COPEPOD's online zooplankton and phytoplankton data content ranges from long term ecosystem monitoring surveys to detailed process studies, each accessible via a variety of search options, and each detailed via standard visual and text-based content summaries.   COPEPOD also offers a variety of pre-generated data compilations and gridded mean field products at regional, basin, and global scales.