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•I 1996 Paria River Native Fish Monitoring Table 2. Mean, minimum and maximum total length and weight for all species caught in the Paria River, Arizona, 1996. Total Length ( mm) Weight (Q ) Species N Mean Mutimum Maximum Mean Minimum Maximum Flannelmouth sucker 34I 57.2 19 S I S 81.4 0.2 1334.0 Speckled dace 515 67.1 28 112 3.8 0.3 97.0 Golden shiner 2 92.5 9~1 94 7.4 7.0 7.8 Rainbow trout 1 305.0 305 305 97.0 97.0 97.0 ~ Flannelmouth sucker catch was !ow early in the year and all fish caught were adults (Figure 2). However, beginning in May, catches of larval and juveniles increased the catch dramatically. Flannelmouth sucker catch peaked on 30 May 1996, with a CPUE of 48.7 fish/100 m2 seined. Catch rates then decreased through the summer and early fall. Flannelmouth suckers caught in the spring of 1996 were of the 3 cm modal length class (Figure 3). Two sub-adult (I51 mm; 191 mm) and two adult (264 mm; 437 mm) flannelmouth suckers were also caught during this period. During the summer, YOY dominated the catch and the modal length class of YOY increased over the summer from 3 - 9 cm. Also, four sub-adult (174 - 188 mtn) and nine adult {240 - S 15 mm) flannelmouth suckers were caught during the summer. Young-of--year flannelmouth suckers continued to be caught in late sununer/early fall, and were 8 - 10 cm in length. One-adult (215 mm) was also caught during this period. A total of 32 flannehnouth suckers were scanned for PIT tags. Eighteen of these scanned fish were found dead along the shoreline on 16 April and five had PIT tags (Table 3). Three of l4 • live flannehnouth suckers scanned were recaptures. Information regarding initial mark of two of the three live fish indicates that one flannelmouth sucker grew 20 nun TL and gained 14.8 g in 57 days while the other grew 43 nun TL and 39.5 g in 75 days. Fourteen flannelmouth suckers (>150 mm TL) were implanted with PIT tags (Table 4). Speckled Dace Speckled dace had a mean length of 67.1 mm TL and mean weight of 3.8 g. Speckled dace catch also fluctuated with summer reproduction (Figure 2). Catch-per-unit-effort remained steady through the spring, decreased in early summer then increased in late summer. Speckled 4 Arizona Game & Fish Department • Brooder and Ho8nagle, 1996 Annaal Report