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<br />Colorado Squawfish #40:7419 (CS741) <br /> <br />CS741was captured by angling at RM 82.7 on 27 August 1996. This fish was located on <br />at least 12 separate occasions and was never found more than one river mile from the <br />capture location (Figures 4 and 5). CS741 was almost always located in one of the two <br />large pool habitats within this area. The only exceptions occurred when it was found in <br />an eddy along the lower edge of one of the large pools, or was found in a run at the head <br />of the other pool. The two large pools were unique because each had a submerged shelf <br />in deep slow moving water. The lower pool had a bedrock shelf and the upper pool <br />contained a submerged sandbar. CS741 was usually associated with one ofthese two <br />habitats. Although more than 0.3 miles of run and rime habitat existed between the two <br />pools, CS741 never remained within this area during monitoring periods, <br /> <br />A 24 hour observation was conducted on CS741 beginning at 9:15 a.m. on 23 October <br />1996 (Figure 6), During the daylight hours CS741 remained mostly inactive, changing <br />positions once. CS741 became moderately active after sunset then changed habitats prior <br />to 10:15 p.m. when it was located in an eddy pool about 700 feet downstream. Contacts <br />made after 10:15 p.m, indicated that CS741 was very active within a 20 foot area of the <br />eddy pooL This activity continued until 1: 15 a,m. on 24 Oct. 96 when the fish became <br />mostly inactive, CS741 remained stationary and inactive throughout the remainder of the <br />24 hour observation. <br /> <br />Colorado Squawfish #40:6840 (CS684) <br /> <br />CS684 was captured by angling on 27 August 1996 immediately below the sandbar shelf <br />in the upper pool used by CS741 at RM 83.0, Early contacts with the fish suggested that <br />shortly after it was captured and implanted this fish began moving downstream, The day <br />after its release it was located near the submerged bedrock shelves in the pool with <br />CS741 at RM 82.7. Within 12 days CS584 had moved over five miles downstream <br />during the lowest flows of the summer and was located in a large, deep pool at RM 77.3 <br />(Figures 7 and 8). The pool and upstream adjacent run at this location encompass nearly <br />0.3 river miles, The run is a deep slow moving run that drops off into the pool near a <br />bend in the river. Maximum depth in the pool was estimated at 15 feet, and specific <br />structures or habitat at the bottom of the pool were not determined. CS684 was found in <br />a variety of locations in this pool and run habitat. Because of its position adjacent to <br />private land, a 24 hour observation was never conducted on CS684. <br /> <br />Yampa River Radio Telemetry Report <br />Miller Ecological Consultants, Inc, <br /> <br />Page 8 <br />January 23, 1997 <br />