Presented By: Cooperative Institute for Great Lakes Research (CIGLR)
Great Lakes Seminar Series
Silvia Newell: Nitrogen cycling in eutrophic systems: Case studies in Lakes Erie and Taihu
Please join us for a Great Lakes Seminar Series presentation:
Presenter: Silvia Newell, Assistant Professor, Wright State University
Title: Nitrogen cycling in eutrophic systems: Case studies in Lakes Erie and Taihu
To participate remotely via webinar, please register at: https://attendee.gotowebinar.com/register/1637315028733554436.
Abstract: Cyanobacterial harmful algal blooms (HABs) in Lake Taihu and western Lake Erie are driven largely by agricultural nitrogen (N) and phosphorus. Cyanobacterial community dominance and HAB development may depend on ammonium (NH4+) availability, and increased NH4+ has been linked to increased toxin production. Microcystis, the dominant toxic cyanobacterial genus in both lakes, cannot fix atmospheric N2; consequently, it must compete for NH4+ with other primary producers. Understanding the factors that govern N cycling and NH4+ availability is therefore crucial for identifying conditions that stimulate and maintain HABs.
Bio: Silvia Newell is an Assistant Professor at Wright State University in Dayton, OH. She has a Ph.D. in Geosciences from Princeton University. Her dissertation focused on biogeochemical cycling of nitrogen in low-oxygen marine environments in Chesapeake Bay and the Arabian Sea. For her post-doctoral work, first at Princeton and then at Boston University, she continued her exploration of the nitrogen cycle in the Sargasso Sea, the Gulf of Mexico, and Cape Cod. Currently, her work at Wright State focuses on hypereutrophic Lake Erie, Lake Okeechobee, and Lake Taihu in China, as well as local research on the Great Miami River and small lakes.
Important Visitor Information
All in-person seminar attendees are required to receive a visitor badge from the front desk at the NOAA Great Lakes Environmental Research Laboratory facility. Seminar attendees need to present a valid U.S. photo ID or green card. If you are a Foreign National, advance notification of at least 48 hours is needed so that security guidelines are followed. You will need to present your passport (a copy will NOT work). For questions regarding building access, or assistance in obtaining Foreign National clearance, please call 734-741-2393. Email contact: Tim.Powell@noaa.gov
_____________________________________________________
Questions? Contact Mary Ogdahl: ogdahlm@umich.edu
Presenter: Silvia Newell, Assistant Professor, Wright State University
Title: Nitrogen cycling in eutrophic systems: Case studies in Lakes Erie and Taihu
To participate remotely via webinar, please register at: https://attendee.gotowebinar.com/register/1637315028733554436.
Abstract: Cyanobacterial harmful algal blooms (HABs) in Lake Taihu and western Lake Erie are driven largely by agricultural nitrogen (N) and phosphorus. Cyanobacterial community dominance and HAB development may depend on ammonium (NH4+) availability, and increased NH4+ has been linked to increased toxin production. Microcystis, the dominant toxic cyanobacterial genus in both lakes, cannot fix atmospheric N2; consequently, it must compete for NH4+ with other primary producers. Understanding the factors that govern N cycling and NH4+ availability is therefore crucial for identifying conditions that stimulate and maintain HABs.
Bio: Silvia Newell is an Assistant Professor at Wright State University in Dayton, OH. She has a Ph.D. in Geosciences from Princeton University. Her dissertation focused on biogeochemical cycling of nitrogen in low-oxygen marine environments in Chesapeake Bay and the Arabian Sea. For her post-doctoral work, first at Princeton and then at Boston University, she continued her exploration of the nitrogen cycle in the Sargasso Sea, the Gulf of Mexico, and Cape Cod. Currently, her work at Wright State focuses on hypereutrophic Lake Erie, Lake Okeechobee, and Lake Taihu in China, as well as local research on the Great Miami River and small lakes.
Important Visitor Information
All in-person seminar attendees are required to receive a visitor badge from the front desk at the NOAA Great Lakes Environmental Research Laboratory facility. Seminar attendees need to present a valid U.S. photo ID or green card. If you are a Foreign National, advance notification of at least 48 hours is needed so that security guidelines are followed. You will need to present your passport (a copy will NOT work). For questions regarding building access, or assistance in obtaining Foreign National clearance, please call 734-741-2393. Email contact: Tim.Powell@noaa.gov
_____________________________________________________
Questions? Contact Mary Ogdahl: ogdahlm@umich.edu
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