Ecology and Evolutionary Biology Commons^™

Calibration Of A Water-Quality Model For Herrington Lake Using Empirically Derived Measurements Of Phytoplankton Growth And Nutrient Assimilation, Paul A. Bukaveckas, Angela S. Crain

KWRRI Research Reports

Importance of light limitation, nutrient availability, and hydrology in controlling the abundance and composition of the phytoplankton community of Herrington Lake (KY) was investigated over a two-year period. Selected environmental parameters were measured every two weeks (April-October) at five sampling stations located along the longitudinal gradient of the reservoir. In addition, short-term (48hr) nutrient enrichment experiments were conducted to assess the spatial and temporal variations in nutrient limitation. Phytoplankton growth responses to the combined addition of nitrogen (NO₃) and phosphorus (PO₄) were greater than those resulting from the addition of either nutrient alone. These results indicate …