METHODS (field): Fishes were sampled with single-pass backpack electrofishing with two netters in May, August and November 1-3 pools and 1-3 riffles at each site (depending on reach stream structure). In each pool and riffle, discharge, substrate, depth, velocity, width and percent canopy cover were measured along 3 transects. Depth (m), current velocity (m/s taken at 60% depth, using a Marsh-McBirney Model 2000 flowmeter) and substrate size-class (based on modified Wentworth scale; Cummins, 1962) were quantified at 5 points along the width of each transect. Substrate size classes were numerically scored [1 (clay/bedrock), 2 (silt), 3 (sand), 4 (gravel), 5 (pebble), 6 (cobble) and 7 (boulder)] to give an average size for each habitat sampled. Percent canopy cover was estimated by averaging the densiometer readings at the center of each of the three transects per pool. In-stream cover throughout the pool was characterized as log complex, aquatic vegetation, undercut bank, log, brush pile, bank grass or root wads and length and width were measured. FREQUENCY OF SAMPLING: Fishes were sampled seasonally from 1995 through 2007. From 2007 to present sites are sampled three times annually in May, August and November.