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The April-May trip resulted in the most specimens, as 2,289 <br />fish were captured (Table 5). The March (Table 4) and October___ <br />(Table 6) trips yielded 1,813 and 1,888 specimens, respectively. <br />seven species and one hybrid were collected on each of the three <br />trips, however, the seven species were never the same. On the <br />April-May trip, smallmouth bass (Micropterus dolomieui) was the <br />new species, while red shiner (Notropis lutrensis) was the <br />addition in October. <br />The only target species captured by electrofishing in 1988 <br />were three adult Colorado squawfish. The first two were taken <br />during the March trip and the third in October. No additional <br />target species were observed during the 1988 electrofishing phase <br />of this survey. <br />As in 1987, the 1988 catch was dominated by native <br />flannelmouth and bluehead suckers, which collectively comprised <br />75% of the total specimens collected by electrofishing (Table 3). <br />Both suckers were taken at all of the 87 sampling sites and were <br />the only species with a frequency of occurrence of 100%. <br />The five most abundant species in 1987 were also the five <br />most common in 1988 (Table 3), and together they accounted for <br />almost 99% of the total catch. Common carp (Cyprinus carpio) and <br />channel catfish were the most abundant non-native fishes, <br />together accounting for 20% of the total catch. Common carp <br />comprised a relatively consistent percentage of the catch on all <br />three trips (12.0%, 10.4%, and 9.3%) whereas channel catfish <br />increased from 4.4% in April-May to 18.3% in October. We <br />attribute this dramatic increase in channel catfish to successful <br />16