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<br />002462 <br /> <br />10 <br /> <br />e. Quantify/model the heat budget for Lake Powell to determine near-term <br />and long-term (monthly/weekly and annual sununaries respectively) <br />effects of a selective withdrawal system. <br /> <br />f. Determine the effect of current dam operations on reservoir levels of <br />selenium. <br /> <br />Biological <br /> <br />IN 1.1 Determine the impacts of dam operations and resulting water quality on primary <br />and secondary productivity of Lake Powell, including: <br /> <br />a. algae (phytoplankton, periphyton) <br />b. Macrophytes <br />c. zooplankton <br />d. macro invertebrates <br /> <br />IN 1.2 Quantify levels of selenium and describe effects of these levels on primary and <br />secondary productivity, fish and waterfowl, and human consumption. <br /> <br />Lake Powell Aquatic Ecosystem (Fishery) <br /> <br />MO 2: Protect Lake Powell aquatic ecosystem from adverse impacts due to dam operations and <br />subsequent effects, including but not limited to: temperature, reservoir surface elevations, <br />elevated selenium levels, advective flow patterns, predator/prey relationships, and fish <br />movements. <br /> <br />IN 2.1 Determine the effects of water temperature caused by dam operations <br /> <br />IN 2.2 Determine the effects of fluctuations in the reservoir surface elevations caused <br />by dam operations (under approved operating criteria) <br /> <br />IN 2.3 Determine the effects of elevated selenium levels caused by dam operations <br />(under approved operating criteria) <br /> <br />IN 2.4 Determine the effects of advective flow patterns on Lake Powell aquatic <br />ecosystem caused by dam operations (under approved operating criteria) <br /> <br />IN 2.5 Determine the effects of predator/prey relationships caused by dam operations <br />(under approved operating criteria) <br /> <br />IN 2.6 Determine the effects of fish movements caused by dam operations <br /> <br />DRAFT - June 17, 1998 <br />