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R/CBT-33
An assessment of the impact of metal-contaminated dredge spoils in wetland restoration
Principal Investigator:
Cynthia C. GilmourStart/End Year:
1998 - 2000Institution:
Academy of Natural Sciences Estuarine Research CenterCo-Principal Investigator:
Gerhardt F. Riedel, Academy of Natural Sciences Estuarine Research LaboratoryTopic(s):
- Ecosystems and Restoration
Description:
The objective of this study is to assess the fate, bioavailability and transport of metals and metalloids in dredge spoils applied to wetlands. Specifically, we will examine six of the Chesapeake Bay Program Toxics of Concern (Cu, Pb, Cd, Cr, Hg, As) in a restored marsh that has previously received dredge spoils (Kenilworth Marsh) and in a control marsh (Dueling Creek) within the Anacostia River. We will also examine two metals that serve as models for particular modes of redox cycling (Fe, Mn).
Funding Start Year
1998
Funding End Year
2000
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Featured Fellow
Nina Santos
Nina Santos is a Ph.D. student at the Chesapeake Biological Laboratory at the University of Maryland Center for Environmental Science. For her dissertation, she is focused on small shrimp-like crustaceans called mysids – an understudied yet important part of many estuarine and coastal food webs.
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.
