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<br />Species 1998 1999 2000 1998 1999 2000 I <br /> <15cm <15cm <15cm <15cm <15cm <15cm <br /> Sevens Sevens Sevens DulTv Duffv Duffy <br />Flannelmouth Sucker 0.6% 0.22% 0.07% 0.11% <br />BJuehead Sucker 0.0% 0.06% <br />Roundtail Chub 6.5% 0.07% 2.4% <br />Colo. Pikeminnow 0.0% <br />White S. + Crosses 6.2% 18.4% 25.9% 9.8% 18.4% 5.8% <br />Carp 0.0% 0.3% 0.0% 0.6% <br />Small mouth Bass 0.3% 26.3% 14.3% 45.4% 42.1% 83.5% <br />White Crappie 0 6.6% 0.2% 0.0% <br />Mottled Scuplin 5.0% 18.7% 26.5% 4.7% <br />Speckled Dace 37.5% 13.2% 2.4% 11.0% 8.1% 1.2% <br />Sand Shiner 42.1% 35.5% 56.9% 14.0% 2.4% 1.3% <br />Fathead Minnow 0.3% 0.22% 0.13% <br />Redside shiner 0.13% <br />Brook Stickleback 0.07% <br />Mountain Whitefish 0.07% <br />Creek Chub 2.7% <br />Green Sunfish 0.3% <br />Red Shiner 1.5% <br />Native 50% 13% 3% 30% 37% 6% <br />Non-native 50% 87% 97% 70% 63% 94% <br />Sample size 323 76 455 1483 1763 937 <br /> <br />I <br /> <br />Table AZ. Species Composition for fish <15 cm caught by electrofishing in the Yampa River <br />for 1998, 1999,2000. I <br /> <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br /> <br />Table A3. Density estimates for fish collected in the Duffy Reach (7.2 km) for the three years I <br />1998, 1999,2000. Mean stream width is 53m. <br /> <br />I <br />I <br />I <br />I <br /> <br /> 1998 1999 2000 98/99 98/00 99/00 <br /> Fish/km Fish/km fish/km Alpha Alpha Alpha <br /> 0.05 0.05 0.05 <br />TOTAL 387 403 316 NOTO SO SO <br />WS&WSX 241 242 203 NOTO SO SO <br />FM 25 15 11 NOTO SO NOTO <br />BH 24 23 16 NOTO NOTO NOTO <br />RTC 12 25 5 NOTO SO NOTO <br />CS 8 5 4 NOTO NOTO NOTO <br />5MB 40 58 58 NOTO NOTO NOTO <br />NP 17 16 3 NOTO NOTO NOTO <br />CP 22 8 4 NOTO SO NOTO <br />CC 19 29 15 NOTO NOTO NOTO <br /> <br />53 <br />