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Sand shiner was found in all study reaches and increased in abundance downstream (Fig. 27). Similar to red shiner, sand shiner distribution and abundance in Lodore Canyon increased in 2002 to 2004 compared to 1994 to 1996. Relative abundance of sand shiner in seine samples increased most in LD3 and LD4 in 2002 to 2004 and it was more common in the IRP reach in 2002 to 2004 than the earlier period. Sand shiner was also abundant in Whirlpool Canyon. Four sand shiner were found in lower Browns Park in 2002, but were not captured there in 2003 or 2004. Redside shiner was found in all study area reaches and showed a pattern of decreasing abundance downstream (Fig. 28). Redside shiner abundance showed a particularly large increase in Browns Park and reaches LD1 and LD2 in Lodore Canyon in the 2002 to 2004 period. Fathead minnow was distributed throughout all study reaches and its abundance generally declined in a downstream direction in the 2002 to 2004 period (Fig. 29). Fathead minnow relative abundance in Browns Park was high and similar among the two study periods, increased in 2002 to 2004 in reaches LD1 to LD3, and declined in LD4 compared to 1994 to 1996. Fathead minnow abundance was relatively low in the Island-Rainbow Park reach in 2002 to 2004 compared to the 1994 to 1996 period. White sucker was found throughout the study area and its abundance in both electrofishing and seine samples declined downstream (Fig. 30). White sucker abundance in electrofishing samples was highest in upper Lodore Canyon; CPUE data showed a significant increase in white sucker abundance in the 2002 to 2004 period (Table 8). Small-bodied white suckers captured in seine samples comprised a substantial portion of the fish community in Browns Park and upper Lodore Canyon samples, but declined in abundance in reach LD3 and downstream. White sucker abundance showed a small increase in the Island-Rainbow Park reach in the recent period compared to 1994 to 1996 samples. Identity of white suckers and possible occurrence of Utah sucker is ongoing using comparisons of known-identity specimens. Size structure of white sucker in electrofishing samples showed a preponderance of relatively small fish that were 250 mm TL or less in upper Lodore Canyon, and were more 33