Assess students' ability to analyze the causes (point and non-point nutrient sources, runoff, land use), ecological impacts (hypoxia, shifts in species and food webs, toxin risks), and remediation trade-offs (source reduction, in-lake treatments, land management, costs and unintended consequences) of algal blooms in a freshwater lake watershed. Include interpretation of simple datasets (nutrient levels, chlorophyll or algal biomass, dissolved oxygen), evaluation of management options for different stakeholders, and justification of a balanced remediation plan that weighs ecological, economic, and social factors.