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<br />O;)B12G <br /> <br />TABLE OF CONTENTS <br /> <br />Page <br /> <br />LIST OF TABLES . . iii <br />LIST OF FIGURES v <br />LIST OF APPENDICES vi <br />ACKNOWLEDGEMENTS . viii <br />INTRODUCTION . . . 1 <br />METHODS AND MATERIALS 2 <br />Selection of Study Streams 2 <br />Field Data Collection Plan 2 <br />Survey Methods Used . . . . 5 <br />Criteria For Minimum Flow Determination 5 <br />Chronological Order of Data Analysis 8 <br />Population Estimation Methodologies . 8 <br />Instream Flow Service Group - Special <br />Analysis Procedures .... 9 <br />RESULTS AND DISCUSSION . . . . . . , . . . 10 <br />Single Transect (R-2 Cross) Method 10 <br />Multiple Transect (R-2 Cross) Method 14 <br />Incremental (IFG4) Method . . . . . 15 <br />Montana (Tennant) Method . . . . . . 19 <br />Weighted Usable Area (IFG3) Method 22 <br />Comparison of Minimum Flow Recommendations 25 <br />Comparison of Predictive Capabilities of the <br />Multiple R-2 Cross and Incremental (IFG4) <br />Methods . . . . . . . . . . . . . . 27 <br />Time and Cost Analysis . . . . . . . . . . . . 32 <br />Requirements for Methodology Improvements - Single <br />and Multiple Transect R-2 Cross Methods 38 <br />Requirements for Methodology Improvement - IFG4 . . 39 <br />Requirements for Methodology Improvement - IFG3 . . 39 <br />Methodologies in Relation to Biological Conditions 40 <br />Reliability and Comparability of Methodologies 41 <br />Cost/Benefit Analysis . . . . . . . . . . . 42 <br />Recommendations for Methodology Application <br />in Colorado 42 <br />SUMMARY 45 <br />LITERATURE CITED 47 <br />APPENDICES 50 <br /> <br />ii <br />