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<br />LIST OF FIGURES <br /> <br />Figure <br /> <br />Page <br /> <br />1. Frequency of use of simple and complex channel types <br />by adult Colorado squawfish .................................... 8 <br /> <br />2. Relative catch-per-effort for three introduced minnow <br />species in the l8-mile reach of the Colorado River <br />near Grand Junction, Colorado, 1986-1989 ....................... 14 <br /> <br />3. Plot of geometric-mean catch-per-effort (C!E) versus <br />maximum-annual discharge for post-larval Colorado <br />squawfish collected during October, Colorado River, <br /> <br />1982 -1988 ...................................................... 15 <br /> <br />4. Peak flows (mean flow on the highest flow day of the <br />year) and catch rates of Colorado squawfish larvae <br />and young-of-the-year (YOY) in the l8-mile reach <br />(Gunnison confluence to Loma) of the upper Colorado <br /> <br />River, 1986-1989 ............................................... 19 <br /> <br />5. Correlations of peak. flow and catch rates of larval <br />and young-of-the-year Colorado squawfish in the <br />l8-mile reach (Gunnison confluence to Loma) of the <br />upper Colorado River, 1986-1989 ................................ 20 <br /> <br />6. Recent and historic spring flows in the upper Coiorado <br />River at the top of the lS-mile reach (15) and near <br />the ColoradofUtah State line (STUN), and in the Gunnison <br />River (GU) near Grand Junction (including Redlands <br /> <br />power canal) ................................................... 29 <br /> <br />7. Recent and historic frequencies of peak flows (highest <br />flow day of the year) of various magnitudes .................... 30 <br /> <br />8. Time series of peak flows in the upper Colorado River <br />at the top of the lS-mile reach and at the ColoradofUtah <br /> <br />State line, 1897-1989 .......................................... 31 <br /> <br />9. ReC1Snt and historic mean monthly flows in the Colorado <br />River at the top of the lS-mile reach and in the <br />Gunnison River near Grand Junction, Colorado ................... 32 <br /> <br />" <br /> <br />10. Mean monthly discharge at USGS gaging stations on three <br />upper Colorado River basin rivers .............................. 36 <br /> <br />11. Change in mean peak flow (highest flow day of the year) <br />for three upper Colorado River basin rivers ............... ..... 37 <br /> <br />12. Razorback sucker captures from the Colorado River <br />between Loma and Palisade, Colorado (RM 152.8-185.1), <br /> <br />1974-1990 ...................................................... 38 <br /> <br />vH <br />