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'Nutrient Pollution and Water-Based Recreation in Utah'
Paul Jakus (paul.jakus@usu.edu), Utah State University Nanette Nelson, University of Wyoming; Mary Jo Kealy, CH2M Hill; John Loomis, Colorado State University

An excess of nutrients in water can cause a host of problems that affect the quality of recreation. Algae blooms, changes in water color, odor problems, and damage to sensitive species can all influence where, when, and how often people choose to engage in water-based recreation. We develop a state-wide, 284 site model of water-based recreation for the state of Utah, finding that recreation behavior is negatively affected by excess nutrients. The model allows us to gauge the aggregate economic losses associated with excess nutrients, as well as identifying those sites which yield the greatest economic benefit if nutrients were to be reduced.