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Figure 12. Recent captures of adult Colorado pikeminnow (n = 1,082} in the Colorado <br />River, Colorado, 1990-1997. Data courtesy of the U.S. Fish and Wildlife <br />Se-vice . ..............................................:... 119 <br />Figure 13. Recent captures of adult Colorado pikeminnow (n = 102) in the Gunnison <br />River, Colorado, 1990-1997. Data courtesy of the U.S. Fish and Wildlife <br />Service . .........................................,........'120 <br />Figure 14. Relationship between potential direct contributions and present indirect <br />contributions of tributaries in the upper Colorado River <br />basin .................................................... 121 <br />1ST OF KEY WORDS <br />Colorado River, Green River, tributary streams, endangered fishes: Colorado <br />pikeminnow, Ptychochellus luclus; razorback sucker, Xyrauchen fexanus; humpback <br />chub, Gila cypha; bonytail, Gila elegans. Endangered species recovery. Environmental <br />constraints. Fish habitat, water flow, sediment, water quality. <br />vii <br />