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Table 9. Total number <br />young-of-the-year <br />backwaters. collected and mean catch per unit effort (CPUE; fish per 10 m2) for sympatric fishes, <br />Colorado squawfish monitoring, 1990. Calculations based on the first seine haul in primary <br /> Colorado River Green River <br /> Reach 1 Reach 2 Reach 3 Reach 4 <br /> (N 21) (N - 21) <br />- <br />--- (N - 13) <br />---- <br />- <br />-- <br />--- <br />----- (N - 22) <br />--------- <br />------ <br />-- <br />Species ------ <br />Total ---------- <br />Mean ---- - --------- <br />Total --------- <br />Mean ----- --- <br />-- <br />Total --- <br />- <br />Mean -- - <br />Total Mean <br />collected CPUE SD collected CPUE SD collected CPUE SD collected CPUE SD <br />Catostomus <br />spp.* 4 0.04 0.18 1 0.04 0.04 0 0.00 0.00 9 0.06 0.10 <br />red <br />shiner 6646 76.28 68.56 740 32.05 24.64 4739 44.83 43.07 5395 39.67 22.09 <br />w <br />sand <br />shiner 889 10.69 15.57 188 8.14 6.89 108 1.24 2.69 87 0.73 2.28 <br />carp 4 0.05 0.14 1 0.04 0.04 4 0.03 0.07 4 0.03 0.10 <br />fathead <br />minnow 5696 65,60 94.76 1241 53.75 36.04 204 2.94 7.02 1386 13.42 31.18 <br />Gila spp. 3 0.05 0.18 0 0.00 0.00 0 0.00 0.00 22 0.17 0.25 <br />channel <br />catfish 11 0.12 0.21 2 0.09 0.07 8 0.10 0.20 1 0.02 0.09 <br />green <br />sunfish 1 0.01 0.04 13 0.56 0.36 ~ 0 0.00 0.00 0 0.00 0.00 <br />largemouth <br />bass 1 0.01 0.04 1 0.04 0.04 0 0.00 0.00 0 0.00 0.00 <br />* bluehead sucker, flannelmouth sucker and unidentified sucker combined. <br />