Upcoming Events
MS Thesis Defense - Environmental Science and Policy
Dec 2, 2021, 10:00 AM - 12:00 PM
Zoom
MS Thesis
Department of Environmental Science and Policy
College of Science
George Mason University
Candidate: Samantha Mohney
Defense Date: December 2, 2021
Defense Location: Zoom
Title: Benthic cyanobacteria abundance and production in the Tidal Potomac River
Thesis Director: Dr. R. Chris Jones
Committee: Dr. Scott Glaberman, Dr. Jennifer Salerno
ABSTRACT
Planktonic cyanobacterial harmful algal bloom (cHAB) occurrence in the Tidal Potomac River has dramatically decreased due to reduced nutrient pollution. The improved water clarity has facilitated the growth of toxic benthic cyanobacterial mats of Lyngbya wollei. This thesis investigates L. wollei biomass productivity and relationships between the measured variables. Sample analysis indicates rising growth trends for chlorophyll α> and submerged aquatic vegetation (SAV), while revealing a significant correlation (p = 0.003) between the two parameters. Results provide a framework for subsequent studies, while highlighting the significant relationship between L. wollei growth and SAV presence, emphasizing the need for further research.