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Government <br />' Highiine <br />Loma Diversion <br />Boat Grand N <br />Launch Frw\ !unction I <br />` Palisade Price <br />¦ Clifton <br />RM 152.8 DStub <br />am <br />Black COLORADO <br />Rocks Grand <br />¦ RIVER ? Valley <br />RM 171.0 --? Diversion <br />UTAH I COLORADO RM 185.1 <br />Redlands <br />i o 5 10 Diversion GUNNISON <br />Scale of Miles RIVER <br />Figure 1. Map of the general study area. <br />be located in the immediate study area (Fig. 1). Radio-tracking was <br />conducted from boats; however, in one location, searches from shore were <br />necessary because of inaccessability by boat. Location of fish was <br />identified in the Colorado River by river mile (RM) distance from the <br />confluence with the Green River, and in the Gunnison River as distance from <br />its confluence with the Colorado River. <br />Distribution of larval squawfish was determined by seining river backwaters <br />from mid-July through the end of August. The river was subdivided into 2- <br />mile reaches; in each reach, the first backwater encountered (when <br />proceeding downstream) was sampled using 0.5-mm-mesh hand seines. Captured <br />fish were preserved in 10% formalin and identified by the Colorado State <br />University Larval Fish Laboratory. Effort was not constant among samples so <br />results are considered qualitative. The area sampled included the <br />aforementioned 15-mile-reach, the adjacent 18-mile segment of Colorado River <br />3