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Figure 20. Locations of channel catfish CC653 and mean daily discharge at the Yampa River, Colorado, 1000 900 800 700 . ~ .00 . ~ u . is 500 ~ '. ~ c 400 . . " 300 200 100 0 ~ ~ m m ~ ~ 0 . N N Channel Catfish CC653 84 -6- Discharge I ~ Fish CC653 I 83 82 . 81 80 79 78 77 7. ~ ~ ~ ~ ~ ~ ill ~ w ill ill w w ~ ~ ~ w ~ ~ ~ w ~ ill ~ m m m m m m m m m ~ m m m ~ m m m ~ m m ~ " " " " " " = " ~ "- "- "it "- "- "- "- ti ti ti ti u ti ti ~ , , , , , , , . . . . . . . 0 0 0 0 0 0 0 ~ < < < < < < < "' "' "' "' "' "' "' "' N ~ ~ m ~ ::: N ~ = N ~ N ~ 0 . ~ ~ ~ 0 . ~ N N " ~ ~ N N M N N N Date Channel Catfish #40:7033 (CC703) CC703 was captured by electrofishing at the same time and location as CC653 (RM 79.5 on 23 JuL 1996). By 27 August 1996 this fish had moved upstream to a very deep pool (>12 feet) at RM 80.1 (Figure 21 and 22). The signal emitted by this fish was weak (possibly due to the depth of the pool and large submerged boulders) and precise locations were not possible. During the final week of the study (23 October 1996) this fish was located in the downstream end of the pool (RM 80,0) where a stronger signal was observed. Channel Catfish #40:7719 (CC771) CC771 was captured by electrofishing on 23 JuL 1996 at RM 78.4 The fish remained in the general pool where it was captured throughout the month of September, however it did move to different areas within this pool (Figures 23 and 24), The areas in this pool that were commonly used included a deep area with low velocity under the bridge, and a deep area at the end of the pool that contained a submerged bedrock shelf, CC77l was not located by ground crews after the month of September. During later October, CC771 was reported by aircraft to be located at a position nearly four miles downstream. Yampa River Radio Telemetry Report Miller Ecological Consultants, Inc, Page 27 January 23, 1997