. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). Fish populations and other project monitoring Nevada Spring Creek supports brown trout dominated community in upper reaches and non-game species (redside shiners, northern pikeminnow, and largescale sucker) in lower reaches (Pierce et al 2002). WSCT thought to originate in Wasson Creek, also inhabit Nevada Spring Creek in low densities, although according to historical accounts were once abundant (Frank Potts, persona
. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). Fish populations and other project monitoring Nevada Spring Creek supports brown trout dominated community in upper reaches and non-game species (redside shiners, northern pikeminnow, and largescale sucker) in lower reaches (Pierce et al 2002). WSCT thought to originate in Wasson Creek, also inhabit Nevada Spring Creek in low densities, although according to historical accounts were once abundant (Frank Potts, personal communication). In 2002 and 2003, we monitored channel changes (Table 3), water temperature (Figure 29), substrate composition (Figure 30), fish populations, and whirling disease levels in Nevada Spring Creek. Degrees F. Figure 29. Maximum monthly summer water temperatures before (2001) and after (2003) miles of rhannel ;:tnirtinn The habitat survey on Nevada Spring Creek focused on measuring pools, riffles, and substrate composition on the restored sections of the spring creek. The survey began at the spring source (mile ) and proceeded downstream to mile , randomly selecting a pool (1-4) and measuring every fourth pool and preceding downstream riffle. Pool measurements include: total pool length, maximum pool depth, riffle crest depth, and wetted widths at the pools maximum depth and the riffle crest. The difference between maximum pool depth and riffle crest depth was used to calculate residual pool depth. Sinuosity, valley slope and channel slope were measured with GIS using USGS digital orthophotos. Two modified Wolman pebble counts were implemented (miles and ) to determine substrate composition. Pool parameter data was summarized based on mean dimensions. Objective for Nevada Spring Creek habitat survey were to provide an assessment of quality of post-restoration pools and substrate composition, and to provide a baseline for future monitoring
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