Assessment of long-term trends for management of Candlewood Lake, Connecticut, USA

ABSTRACTKohli P, Siver PA, Marsicano LJ, Hamer JS, Coffin AM. 2017. Assessment of long-term trends for management of Candlewood Lake, Connecticut, USA. Lake Reserve Manage. 00:00–00.Candlewood Lake, the largest lake in Connecticut, is a pumped-storage reservoir formed in the 1920s for hydropower generation. Since its inception, the lake has experienced shifts in water quality coupled with watershed development and, in the 1980s, the introduction and spread of the invasive macrophyte, Myriophyllum spicatum. In response, a monitoring program to track water quality and a winter drawdown program to mitigate growth of M. spicatum were initiated in 1985. Recently it was suggested that the drawdown program exacerbated eutrophication of the lake. To test this hypothesis, statistical analyses of the long-term (1985 to 2012) database was conducted with a focus on trophic-related variables. We examined the database using principal component analysis (PCA) and multivariate singular spectrum analysis (MSSA). MSSA is a...