|
<br />GRAND CANYON NATIVE FISH MANAGEMENT
<br />
<br />27
<br />
<br />-j'
<br />
<br />1.6
<br />1.4
<br />'C! ~ 1.2
<br />.....
<br />i'i" 1.0
<br />VI oS 0.8
<br />'i'O
<br />'g .. 0.6
<br />i.~ 0.4
<br />:IF-
<br />en .! 0.2
<br />
<br />0.0
<br />
<br />0.40
<br />i 10.35
<br />Ii ...... 0.30
<br />. ..
<br />J .s 0.25
<br />'i 'S 0.20
<br />'2 .. .
<br />!. !i 0.15
<br />....
<br />~'EO.l0
<br />--.
<br />0.05.
<br />.,,-'
<br />0.00
<br />
<br />/~
<br />
<br />Colorado River
<br />above Bright Angel Creek
<br />1942-1962
<br />
<br />
<br />
<br />
<br />..
<br />~{
<br />
<br />Oct Nov Dee Jon F'eb Mar ~r May Jun Jul Aug Sep
<br />
<br />'~'.
<br />!.T
<br />,
<br />J1
<br />~
<br />
<br />~ ;~
<br />
<br />Little Colorado River.
<br />at Cameron
<br />1956-1970
<br />
<br />.1
<br />
<br />'.
<br />
<br />, ;
<br />
<br />~. -
<br />
<br />
<br />!
<br />,
<br />. -- }......
<br />
<br />
<br />':->,
<br />,
<br />
<br />-; ,:,.,.... ~"~
<br />
<br />~~n_.__.'4"~ _' Oct Nov. Dee Jan.._ F.b~~ Mar.. Apr__ May ,..Jun.,. Jul. Aug' S.p
<br />
<br />< 300
<br />.:. ~_27g .
<br />i~240
<br />.a :! 210
<br />'" oS 1 80
<br />1'O1~
<br />!. ~120
<br />..1'90
<br />Jl~ -. . -. . -"-
<br />..,g 60".. "J;.
<br />
<br />.,......'J[ L,.. ", .r, ~
<br />. .0 _.. '.'
<br />
<br />. ,-.. -".." < '~_:'"~::::- r~.'" Oct NoV" Dec:;-'::JCln'~' F~b ~\MClr<-'Apr- May'. Jun '"JuI1"Au9, Sep-
<br />"l..\-.'." . _ .. ~.: ::".1; il"',' ";- -! -... . ....' . ".,--. _ ,
<br />"."-',... .,.. 0'-.. '-'I '. ~'~,;., ._-~ -\...'_.l"'~':~.:':~.~ . .< ::!l ;~.{.:_:~:~ ~.,~v~,',:
<br />FIGURB2.' Mean ~y suspended sediment discharges (open~)~f the pJeilani ,Colorado
<br />River near Phantom Ranch, Little .Colorado ~ver near. Cameron, and Paria Ri,:er a1 Lee's
<br />Ferry, ArizOna,. based on U.S. Geological Survey gauge stationrccorcIs.~;yertical.~rac~
<br />, .' '.'
<br />represent H standard deviation of the \nthIy means. v-
<br />
<br />.~
<br />
<br />!::~
<br />;:,J~
<br />...-
<br />
<br />'_ 1':-
<br />
<br />~~~:
<br />r;~~;
<br />:,,-'-
<br />i?
<br />~
<br />r:'.--1;
<br />".;",.,"
<br />:;.'~,
<br />
<br />Poria River
<br />
<br />. at Lee's Ferry
<br />1948-1976
<br />
<br />'~'.
<br />
<br />!
<br />
<br />n,'_.
<br />
<br />.-;
<br />. ,
<br />
<br />,
<br />, ,
<br />
<br />-..'
<br />
<br />~.-.'" - .-........-
<br />
<br />~ - -) .-',
<br />
<br />~-:.
<br />
<br />,
<br />
<br />. "-f/;
<br />
<br />
<br />:,."'"
<br />
<br />
<br />
|