<br />Bonytail chub ................................. 234
<br />Razorback sucker .'............................. 235
<br />HABITAT ASSESSMENT METHODS, . . . . . . .. . . . . . . . . . . . , . .. 235
<br />Aerial Photography And Videography Techniques . . . . . . . .. . . ,235
<br />Physical Habitat Simulation Model' . . . . . . . . . . . . . . . . . . . ..::'236
<br />, Coverage of Habitat Modeling Techniques. . . . . , . . . . . . . . .. 242
<br />AVAILABLE HABITAT SUITABILITY INDEX MODELS. . . . . . . . . . .. 243
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<br />CHAPTER SEVEN: POLLUTANTS AND TOXICANTS. . . . . . . . . . . . . .. 247
<br />NEEDS OF RARE FISHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . '. 247
<br />Colorado Squawfish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 247
<br />Humpback Chub .................................. 253
<br />Bonytail Chub .................................... 255
<br />Razorback Sucker ................................. 256
<br />NEEDS OF OTHER FISH SPECIES ........................ 256
<br />ENVIRONMENTAL IN THE UPPER COLORADO RIVER BASIN. . . .. 258
<br />Published Uterature ............................,'... 258
<br />Non-point Sources ............ . . . . . . . . . . . . . . , . . . . '. 258
<br />Point Source .....................,............,.. 258
<br />Potential Contaminants . . . . . . . . . . . . . , . . . , . , . . . . , . . . ., 258
<br />WATER QUALITY DATA IN THE UPPER COLORADO RIVER BASIN
<br />Federal Agencies ..................... . . . . . . . . . . . ,. 276
<br />State and Local .Agencies ,................,.......... 277
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<br />CHAPTER EIGHT: LIFE HISTORY AND DISTRIBUTION . . . . . . . . . . . .. 278
<br />LIFE HISTORY .......................,.,..........,.. 278
<br />Colorado Squawfish .,........,.', . , , . , . . , , . , , . . . . .. 278
<br />Humpback Chub :.......,........,...,.....,..,.,. 299
<br />Bonytail Chub ...................,......'.....,.., 302
<br />Razorback Sucker .,.................,............. 305
<br />DISTRIBUTION OF FISHES REPORTED IN 1981 ............... 310
<br />CHANGES IN DISTRIBUTION OF RARE FISHES FOUND SINCE 1981 310
<br />Colorado River .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . '. 310
<br />Green River . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 357
<br />Uttle Snake River .............. . . . . . . . . . . . . . . . . . . .. 357
<br />San Juan River . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 358
<br />San Rafael River . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . , " 359
<br />Yampa River .............................'..,.... 359
<br />SENSITIVE AREAS FOR RARE FISHES ......,.............. 360
<br />POTENTIAL LIMITING FACTORS FOR RARE FISHES .....,..... 360
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<br />CHAPTER NINE: BIOTIC INTERACTIONS ,..................... 381
<br />COMPETITION . . . . . . . . . . , . . . . . , . . . . . . . . . . , . . . . . . . . . " 381
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<br />Adults ....................,...,..,..,....,...... 381
<br />Colorado squawfish . . . . . . . . , . . . . . . . , . . . . . . . . , , .. 381
<br />Humpback chub ,...,..,.................,..... 390
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