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<br />6
<br />C":.')
<br />,..,
<br />
<br />-..1
<br />1-'
<br />
<br />OTHER NATIVE FISHES .............................................. 3 - 18
<br />Flannelmouth Sucker. . . . . . . . . . . . . . . . . . . . , . . . , . . . . . . . . . . . . . . . . . . . 3 - 19
<br />Bluehead Sucker ............,.................................. 3 - 20
<br />Roundtail Chub ......,...............'.................'.....,. 3 - 22
<br />Speckled Dace . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 25
<br />NONNATIVE SPECIES. . , . . . . . . . . . . . . . . . . . . . '" . , . . . . . . . . : . , . . . . . . . . . . 3 - 27
<br />
<br />Red Shiner . . . . . . . . . . . . . . ' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 27
<br />Fathead Minnow ..........................,.........,.......... 3 - 29
<br />Channel Catfish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . 3 - 31
<br />
<br />Common Carp .. . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . , . . . . . . . . . . 3 - 33
<br />
<br />CHAPTER 4: PHYSICAL AND BIOLOGICAL RESPONSE TO RESEARCH FLOWS . . . . . . . 4 - 1
<br />PHYSICAL RESPONSES TO RESEARCH FLOWS ..... . . . . . . . . . . . . . . . . . . . . , . 4 - 2
<br />Channel Morphology ..........,...............,......".......... 4 - 4
<br />
<br />Habitat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . ' . . . , . . . . . . . . . 4 - 29
<br />BIOLOGICAL RESPONSES TO RESEARCH FLOWS . . . . . . . . . . . . . . . , . , . . . . . . 4 - 37
<br />Colorado Squawfish . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . 4 - 40
<br />Razorback Sucker ..... . . . . . . . . . . . . , . . . . . . . . , . . . . . . . . . . , . . . . . . . . 4 - 49
<br />Other Native Fish . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 52
<br />Nonnative Species . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 72
<br />
<br />CHAPTER 5: CONTAMINANT CONSIDERATIONS
<br />IN THE FLOW RECOMMENDATION PROCESS ............,........,. 5 - 1
<br />HISTORICAL CONDITIONS ............. . . . . . .. , . . . . . . . . . . , . . . . . . . . . . . . . 5 - 1
<br />TOXICITY STUDIES. . . . . . . . . . . . . . . . . . . . . . . . . , . . . . , . . . . , . . . , . , . . . . . . . . , 5 - 4
<br />FlOWIWATER QUALITY IMPLICATIONS ., . . . . . . . , . . . . . , . . . . . , . . . . . . . . . . . . 5 - 4
<br />
<br />CHAPTER 6: SUMMARY OF FISH FLOW/HABITAT RELATIONSHIPS. . . . . . , . . . . . . . . , . 6 - 1
<br />RESPONSES TO RESEARCH FLOWS ............,...........,..'........ 6 - 1
<br />GENERAL SUMMARY OF NATIVE SPECIES HABITAT NEEDS...............,. 6 - 3
<br />RELATIONSHIPS BETWEEN FLOW AND NONNATIVE SPECIES. . . , . ., . . . , . . , . 6 - 6
<br />FLOW/HABITAT RELATIONSHIPS ....................,.....,'........... 6 - 6
<br />
<br />SUMMARY ..............,....'.......,....,..."...............,.." 6 - 7
<br />
<br />CHAPTER 7: FLOW RECOMMENDATION DEVELOPMENT PROCESS. . . . . . .. . . . . . . , . 7 - 1
<br />BASIS FOR FLOW RECOMMENDATION........................,.......... 7-1
<br />FLOW/HABITAT MODEL ...............................,.....,......... 7 - 2
<br />SEDIMENT TRANSPORT MODELING . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . 7 - 7
<br />Cobble Transport Modeling for Spawning Bar Preparation ,......'........ 7 - 7
<br />Fine Sediment Transport .... . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . 7 - 8
<br />RIVER OPERATION SIMULATION MODEL.................,....,.,...,.,.. 7 - 8
<br />
<br />RIVERWARE .......................................,................ 7 - 9
<br />RIVERWARE MODEL OF THE SAN JUAN RiVER..............,..........,. 7 - 10
<br />PARAMETER SELECTION AND OPTIMIZATION PROCESS.......,.,........ 7 -16
<br />
<br />SJRIP Biology Committee
<br />16 September 1998
<br />
<br />T-2
<br />
<br />Table of Contents
<br />Draft Flow Report
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