"This dissertation investigates (1) the magnitude and relative importance of denitrification and anammox in aquatic nitrogen (N) loss, (2) microbial pathways of nitrous oxide (N2O) production, (3) impact of ecosystem restoration on N loss and export, and (4) linkages of N loss with harmful algal blooms (HABs). Study ecosystems included a mesotrophic lake, a wetland undergoing restoration, an embayment of Lake Erie, and a coastal seagrass bed. A variety of stable isotopic techniques were employed to achieve these research objectives." -- Abstract.
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