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<br />N <br />Table 4. Overall species composition of larval samples collected between <br />16 July and 28 August, pooled within the three adjacent river reaches. <br />Colorado R. <br />upper 15-miles <br />Total Percent <br />Gunnison R. <br />2-mile reach <br />Total Percent <br />Colorado R. <br />lower 18-miles <br />Total Percent <br />Colorado squawfish 0 0.00 1 0.14 8 0.16 <br />Roundtail chub 105 3.12 25 3.53 98 2.01 <br />Bluehead suckers 2294 68.07 550 77.68 3574 73.43 <br />Flannelmouth sucker 90 2.67 6 0.85 36 0.74 <br />White sucker 10 0.30 2 0.28 4 0.08 <br />Unidentified sucker 21 0.62 7 0.99 54 1.11 <br />Green sunfish 1 0.03 0 0.00 1 0.02 <br />Black crappie 0 0.00 0 0.00 9 0.18 <br />Speckled dace 673 19.97 112 15.82 729 14.98 <br />Red shiner 55 1.63 1 0.14 71 1.46 <br />Sand shiner 54 1.60 2 0.28 22 0.45 <br />Mosquitofish 16 0.47 0 0.00 0 0.00 <br />Unidentified fish 4 0.12 1 0.14 1 0.02 <br />aCategory includes some questionable specimens that the Larval Fish Laboratory <br />tentatively believes are bluehead sucker; however, until techniques are <br />developed to positively identify sucker of this size to species, the presence <br />of razorback sucker larvae in these samples should be considered a possibility.