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<br />~ <br /> <br />~ <br /> <br />the Colorado and Gunnison rivers. To ensure that the flow recommendations <br />are compatible with the habitat needs of all life stages of the endangered <br />fish,-we need to describe the habitats that are available at various <br />streamflows in the Colorado River. We can then determine which flow <br />levels are most likely to benefit all three species. <br /> <br />III. Study Goals, Objectives, End Product <br /> <br />A. Goals: <br /> <br />1. To describe the physical habitats that currently exist in the <br />Colorado River between Palisade, Colorado and the confluence with <br />the Green River. <br /> <br />2. To quantify year-round flows that will maintain and enhance <br />Colorado squawfish, humpback chub, and razorback sucker habitat in <br />the Colorado River between Palisade, Colorado and the confluence <br />with the Green River. <br /> <br />B. Objectives: <br /> <br />1. Use aerial photography, aerial Yideography, ground-truth data and <br />other measurements made on the water, and existing habitat-use <br />information to describe the availability of important habitats in <br />the Colorado River. <br /> <br />, 2. To quantify relationships between habitat an,d streamflo,w - . <br />particularly that between peak discharge and flooded, quiet'water <br />areas. <br /> <br />3. Continue the process to develop year-round flow recommendations <br />for the Colorado River. <br /> <br />4. Use aerial photography and aerial videography to describe channel <br />morphology of Colorado River at base flow. This will provide <br />baseline information that will allow us to detect changes in <br />channel morphology over time. <br /> <br />5. Identify areas that may be appropriate for habitat improvement <br />projects. <br /> <br />IV. Study Area <br /> <br />Colorado River, Palisade, Colorado to confluence with Green River (RM 0 to <br />195) <br /> <br />V. Study Methods/Approach <br /> <br />Aerial photography and aerial videography will, be combined with ground <br />truthing to describe the available habitats in the Colorado River and <br />their relationship with streamflow. The study will be a multi-year study. <br /> <br />Color infrared aerial photography will be acquired during a base flow <br />period that also includes vegetation in full leaf. The optimum time to <br /> <br />2 <br />