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<br />. <br /> <br />, <br /> <br />GRAND CANYON NATIVE FISH MANAGEMENT <br /> <br />29 <br /> <br />35000 <br />30000 <br />25000 <br />20000 <br /> <br />15000 <br /> <br />10000 <br />5000 <br />o <br /> <br />450000 <br />400000 <br />3!lOOOO <br />300000 <br />2!lOOOO <br />200000 <br />Il50000 <br />10??oo <br />50000 <br />o <br /> <br />l <br /> <br />,": <br /> <br />- DISCHARGE (cfs) <br />- 1964-1992 <br /> ~ <br /> ~ <br />. <br /> ~ - ,...1- <br />- - l- I- <br /> ,... <br />- ,...1- <br />- " <br /> I I I I I I . . I T I -, <br /> <br />1-- <br /> <br />~:-: <br />';.,". <br /> <br />Oct Nov Dee Jon Fob Mar Apr MCI)' Jun Jul Aug Sop <br /> <br />SEDIMENT (tons/day) <br />1964-1972 <br /> <br />:~ <br />'Yol <br />~ <br />1.~ <br />,;;.",\ <br />" <br /> <br /> <br /> <br />Oct Nov Dee Jon Fob Mar Apr MCI)' Jun Jul Aug Sop <br /> <br />U5 <br />14': <br />12 - <br />10 - <br />8- <br />6- <br />4- <br />2- <br />o <br /> <br />~ <br /> <br />.,. <br /> <br />TEMPERATURE (C) <br />1969-1976 <br /> <br />,.' ,.' <br /> <br />~ <br /> <br />~ <br />~ <br />~ <br />"- <br />~ <br />~ <br />\,. <br /> <br /><'-.:" <br /> <br />~l' <br />~1 <br /> <br />"- <br />"- <br />"- <br />\I <br /> <br />> <br /> <br />" <br />" <br /> <br />, <br /> <br />Oct NOlI Dee Jon Fob Mar Apr MCI)' Jun Jul Aug Sop <br /> <br />FIqURE 4. Mean daily water discharge and suspended sediment discharge (open bars), and <br />mean minimum daily (open bars) and mean maximum daily (hatched bars) water <br />temperatures (daily means not available) of the post-dam CoIorado River near Phantom <br />Ranch, Arizona, based on U.S. GeoIogical Survey gauge station records. Vertical brackets <br />represent :i: 1 standard deviation of the' \,nthIY means. <br /> <br />\. <br />