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R/P-41
The role of dissolved organic nitrogen in the eutrophication of Chesapeake Bay
Principal Investigator:
Patricia M. GlibertStart/End Year:
1998 - 2000Institution:
Horn Point Laboratory, University of Maryland Center for Environmental ScienceCo-Principal Investigator:
Paul A. del Giorgio, Horn Point Laboratory, University of Maryland Center for Environmental ScienceTopic(s):
Description:
This proposed research will continue our efforts to 1) characterize the seasonal changes in the composition of dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) along the axis of Chesapeake Bay, both in terms of specific compounds and molecular weight distributions; 2) determine how much DON and DOC is biologically available to bacteria and phytoplankton in short-term assays and mesocosm studies; 3) compare the rates of supply with estimates of cell size and proportion of active cells.
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Featured Fellow
Leone Yisrael is a cephalopod-loving scuba diver, cook, and loves to try new activities. She conducts genetic analysis and fieldwork at the Smithsonian Environmental Research Center through the Coastal Disease Ecology Lab.
Featured Research Project
Exploring the Use of Benthic Microbial Fuel Cells to Remove Sulfide While Harvesting Energy from Oyster Aquaculture Biodeposits
Oyster aquaculture is a rapidly growing industry in Maryland’s Chesapeake waters which stimulates economic activity and may provide a host of ecosystem benefits. A potential concern associated with the intensification of the oyster aquaculture is the local production and accumulation of oyster biodeposits, which can lead to a porewater sulfide accumulation and declining bioturbation, symptoms of declining ecosystem function. Sulfide is naturally removed from the seafloor by the interactions between bioturbating infauna and sulfide oxidizing bacteria.
Chesapeake Quarterly Magazine
A Growing Industry: Advancing Oyster Aquaculture in Maryland
