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that th~e most of the new fish being tagged are new fish recruiting to the population and not previously untagged older fish. Flannelmouth sucker Flannelmouth sucker were the third most abundant species captured (356, 11.2%) in 2004 (Table 3). Most tlannelmouth suckers were presumed to be Age-l fish (Figure 2). A total of 202 tlannelmouth suckers over 150 mm TL were caught and 65 (32.2%) were recaptures fish (Table 4). The number of tlannelmouth suckers recaptured in 2004 was almost one third less than the number recaptured in 2003, but CPUE of tlannelmouth suckers was still the second highest recorded annually since 1987. These results suggest good recruitment in 2003. Fewer tlannelmouth suckers from 175 to 275 mm were caught in 2004 than in 2003. Bluehead sucker Bluehead suckers caught in 2004 had a mean TL of 161 mm and ranged in size from 44 to 308 mm (Table 8). A large cohort of age-O bluehead suckers was not detected in 2004. Spawning of blue head suckers may have occurred later in 2004 than in the two previous years and age-O blueheads may have been too small forthe 6.3 mm mesh during the sampling period. (Figure 3). A total of 88 bluehead suckers were scanned for presence of a PIT tag, only one was a recapture and this number was a new PIT tag that is not listed in the GCMRC 14.5 database. Speckled dace Speckled dace Were the most abundant species caught in 2004 with 1,918 caught (Table 3). CPUE for speckled dace was the highest ever recorded since sampling began in 1987 (Figure 10). Reduced numbers of large bodied predators within the system and low tlows may be responsible for the increase in speckled dace numbers. Nonnative species Nonnative species made up only 7 % of the total catch in 2004 with fathead minnow and red shiner being the most abundant nonnative species caught (Table 3 & Figure 6). Stomachs from 9 large bodied predators were examined. Seven channel catfish were also caught but they were all <105 mm TL and stomachs were not taken. One speckled dace was found in the gut of a rainbow trout and all other stomachs were empty (Table 7). 8