9457

• UCREFRP Catalog Number: 9457
• Author: Ptacek, J. A., D. E. Rees and W. J. Miller.
• Title: A Study of the Ecological Processes on the Fryingpan and Roaring Fork Rivers Related to Operation of Ruedi Reservoir.
• USFW Year: 2003.
• USFW - Doc Type: Fort Collins.
• Copyright Material: NO

Figure 24. Weighted usable area (m2 per km) for rainbow trout versus discharge (m3/s)
for FPR-HG ............................................................................................................... 32
Figure 25. Bed profile and water surface elevations for pool cross section at FPR-HG.
Elevation is relative elevation based on a vertical base of 100 in ............................ 33
Figure 26. Habitat time series for rainbow trout at site FPR-HG. Flows modeled were
average daily discharges for 1960-1967 (pre-dam) and 1993-2000 (post-dam)....... 34
Figure 27. Habitat time series for brown trout at site FPR-HG. Flows modeled were
average daily discharges for 1960-1967 (pre-dam) and 1993-2000 (post-dam)....... 35
Figure 28. Weighted usable area (m2 per km) for brown trout versus discharge (m3/s) for
FPR-LG (data from lower and upper sections combined) ........................................ 37
Figure 29. Weighted usable area (m2 per km) for rainbow trout versus discharge (m3/s)
for FPR-LG (data from lower and upper sections combined) .................................. 37
Figure 30. Bed profile and water surface elevations for pool cross section at FPR-LG
lower. Elevation is relative elevation based on a vertical base of 100 in ................ 38
Figure 31. Bed profile and modeled water surface elevations for run cross section at
FPR-LG upper. Elevation is relative elevation based on a vertical base of 100 in.. 38
Figure 32. Habitat time serios for rainbow trout at site FPR-LG. Flows modeled were
average daily discharges for 1960-1967 (pre-dam) and 1993-2000 (post-dam)....... 39
Figure 33. Habitat time series for brown trout at site FPR-LG. Flows modeled were
average daily discharges for 1960-1967 (pre-dam) and 1993-2000 (post-dam)....... 40
Figure 34. Weighted usable area (m2 per km) for brown trout versus discharge (m3/s) for
RFR-TF ..................................................................................................................... 41
Figure 35. Weighted usable area (m2 per km) for rainbow trout versus discharge (m3/s)
for RFR-TF ............................................................................................................... 41
Figure 36. Diversity values obtained from sites on the Fryingpan River and Roaring Fork
River, Colorado .......................................................................................................... 44
Figure 37. Evenness values obtained from sites on the Fryingpan River and Roaring Fork
River, Colorado .......................................................................................................... 44
Figure 38. FBI values obtained from sites on the Fryingpan River and Roaring Fork River,
Colorado .................................................................................................................... 45
Figure 39. EPT values obtained from sites on the Fryingpan River and Roaring Fork River,
Colorado .................................................................................................................... 47
Figure 40. Richness values obtained from sites on the Fryingpan River and Roaring Fork
River, Colorado ....................................................,..................................................... 47
Figure 41. Density values obtained from sites on the Fryingpan River and Roaring Fork
River, Colorado .......................................................................................................... 49
Figure 42. Biomass estimates obtained from sites on the Fryingpan River and Roaring Fork
River, Colorado .......................................................................................................... 49
Figure 43. Functional feeding groups at sites on the Fryingpan River and Roaring Fork
River, Colorado .......................................................................................................... 50
Figure 44. Average daily water temperature (C°) from two artificial redds during brown
trout spawning at two locations on the Fryingpan River .......................................... 53
Figure 45. Average daily water temperature (C°) from two artificial redds during
rainbow trout spawning at two locations on the Fryingpan River ............................ 53
Figure 46. Length frequency of Fryingpan River trout circa 1940s. Source: Hunter and
Parson (1943) ............................................................................................................ 57
Draft Final Report, Fryingpan and Roaring Fork Rivers February 12, 2003
Miller Ecological Consultants, Inc. Page iii