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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
Developing a habitat model for mysids, an important link in Chesapeake Bay food webs
Mysids are important mesozooplankton prey for many species of fish in Chesapeake Bay and are an important link in transferring energy from lower to upper trophic levels. Mysids also serve as biological vectors for benthic-pelagic coupling due to their diel vertical migration and omnivorous prey-switching behavior, which makes mysids important regulators of food web architecture. Despite their central role in coastal food webs, surprisingly little is known about mysid ecology and dynamics in Chesapeake Bay.
