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<br />-'t1l_:;~\!~_-~,j:,::_;2..~,!,f.1~,~._~;.~~,:_-t~;~.... ,_ _ .~__ ~~ _ ,_
<br />':'-::' ,- '-' - -~ '.'. .;~"-~~~;:;:.-;4;5:"-;:"~;;:.'-~"~7'~:
<br />.<.' tlW UnIversity SWIIIllJr .xpedft, .':lIl8eYb~wo~d'-tlU
<br />Lib...,...deJ\t.... Gerald R. Sm!tha ~\1y_.~."Jmuu..M.lf,J~Ml.Dot~If:.:,.thela
<br />'. ,l\i7tne-.tftahState'-DePa.~Jlt:,. . ',_,/:,'~':'~4'Q.IW;lu~aD a
<br />'"".~: .....~'.:ravei:::artdlldfa~n!'~~)11I ~'()t'ttfl:.~r:llnR:ar
<br />..G019& ~Be"oh' Bas1n.Thf8-~')! included samplJ,l\qllf
<br />. ,enamrcal:ctata" and colleotton:~:-.cime~.of f~$he.c'~_~l\~
<br />t~ .t... ..leated locatlOlu1 ,.....:,;;'::'.:":':.:c.=--'.'~~~:_~-=;!~:;::--;,-::~~',:'...._.
<br />"i'2';;;;i::J'-YL'-:':::_:,:::", . ~ '- -~-=_ ::.:::~,;:,g:~ '--:.=c'="~:::'T",-~:-,'''''::::~,-
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<br />:oilectio~--'d'fjfa':"_reY selected to represent.:.as lll41\I t~s'~f:1l:
<br />i.~.~7wi.:"deemea pra.otical'.'eder condtnonii'ot-~~:~'iPed1,tl~;:.-
<br />nIlf\~4"d1.ffeten. t.lQcatlonsl36 in~ the niain'~etlf'ofi:ne=r1T(
<br />~f"irI"e8or8ide canyons.
<br />...... =-.:...-
<br />
<br />.' . ""i'J\e physical data obtained uS'Ually included infonnation about the ;
<br />" ~>"'~~~.ch.location. date, t~, habita.t type' (current, riffle, pool, bat
<br />-~~ ~::::rt'9&1;i-c trtWtaFY-)~-= bOt'tonFtjpe-- -troars ,~-g ~ (l vel,p, sand, or mu<
<br />Wfdt!i~"'d8Pth, velocity, turbidity, and temperature (air and wated.' ThE
<br />'.' .Ohem1caLda.tausu-.Uy includ$d measurements' of pH, dissolved 0~geIlpc~rl
<br />"i:':='-'~"" :~-". "c~---P.~nites< and" bicarbona tes . These C data -, and- notes'onths biob
<br />,,;;~';~}'.:.ft"r ;)I~,n$tanaard foms' at- thecollectionsi te; Ia order to~ measure
<br />_::-';-."--" -, --:-~.-- ~-;.- ""~,, -- ~_._, , -
<br />"'0 . ~;.!I}.~llle~".factor&.three apeQ!al'samplinq Projects on'.'Gn
<br />n...t~!ta~l!5~l'orr~WeHconducted in which water s8lIlples were
<br />~~y~~,;~.py ~1 four hour in;tarvale; over a P8,;tod .of 24t
<br />.......~... coitcfucte,4 at selecteds~:teS' .and werer. .IIP addttion t~
<br />. .r.;.,-t.-: ~ .to! ' - - -.. tj..
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<br />lmTHUOO AND PRCCEDURES
<br />
<br />-.:r- '" _4._-i;,...~_:___.1,,'-':'=--c~{.~i
<br />---.:..:,----~-~"!,~,._~ -----..= -~
<br />
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<br />:".-t';::;~~~_~aT\_s~tl!t~i::ul'~t the QJ:"C!fWdown the. river wasaccompllshethhy means
<br />.~'::~"'i;l~i,foot altiminumbarge:provlded by theUtah'State Department of Fish a
<br />~; a.~ a part of the ove~all expedition. It carried part of the supp
<br />and equipment, as well all the personnel. durinq the expedition.
<br />
<br />MIo Smith acted as crew leader and assumed primary responsibilityf
<br />the equipment and records and 'usually collected the physical-chemical da
<br />The collection and preservation of the specimens was handled primarily b
<br />Musser and.Smith, but all" three cooperated in all phases of the ope ratio'
<br />Theover-all control of travel down the river was determined by the proq
<br />of the ex:pedi tion. Wi thin this limitation, samples were taken as time p
<br />mitted. .
<br />
<br />The equipment and reagents used in 'chemical analysis of the water,
<br />add! tion to some of the other equipment necessary for the survey, were IDi
<br />available by the Department of ZOOlogy, University of Utah.
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<br />142
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