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Last modified
7/14/2009 5:01:44 PM
Creation date
5/20/2009 5:10:17 PM
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UCREFRP
UCREFRP Catalog Number
7036
Author
Holden, P. B. and C. B. Stalnaker
Title
Distribution of Fishes in the Dolores and Yampa River Systems of the Upper Colorado Basin
USFW Year
1975
USFW - Doc Type
The Southwestern Naturalist
Copyright Material
YES
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<br />''''. ~j:.6~;:';&,~" ,,-' ,:,,-- '= .....~,;-,..~....;......-li,-.'. ~ -iit.;;;':_.w-";.!..:a~'~ "...;..;S.',,;i-':;"IIi<;' .,.' '''''''.M.' .)lI~~-::.i.{''';:'~-'-.-.i-~ 2-";\A';':~_&'~'AI!1.:"'~'.. <br />.. ..'r ,.0&./... ".i,;.Iio..--w~~- ._~ ~"j'.::. <br />._ ....-P <br /> <br />" <br />1'- 1. <br />~ 10 <br />~.. <br />=eU <br />:5U <br />~U <br />... '0 <br />.. <br /> <br /> <br />--...._~--............ <br />J 10 15 20 25 30 So 10 ISo 20 25 30 50 <br />JUNE JULY AUGUST <br /> <br />Pig. 3. Doily high water temperature at the mouth of the Yampa River lor 1968-1970. <br /> <br />IJO <br />120 <br />2"0 <br />lUOO <br />I'- <br /> <br />~ ::[ <br /> <br />ii 10 <br />~ 'Ot <br /> <br />"::L' <br />20 <br />10 <br />o 20 U JO <br />JUNE <br /> <br /> <br />---~._---'------"'-- <br />5 .0 ~ 20 2!Jo <br />JULY <br /> <br />Fig. 4. Turbidity change for the SUmmer 01 1968 in the lower Yampa River measured <br />by a Hach Model DR-El Colorimeter. <br /> <br />head sucker) are commonly found in medium-sized tributaries of the <br />upper Colorndo basin. Of particular interest was the occurrence of the <br />chub, dace and llanncJmollth in the dry, middle part 01' thc riycr, dom- <br />inating the fish fnuna of that are,!- Bluchead suckers were foulId in <br />the upper and lower sections only [IS till')' f,l\-or Inrger rime nrcns. No <br />rare and endnllgered specics were fOllllCi in the Dolores system. <br />The Yampa lEver cOlltainpd all ill(~ pillin' fi-h(." found in the npper <br />Colorado Hiver vasiJl, tlw reason [wing Ihat most of these species arc <br />large river fish and the lower Yillll[la is all intermediate ,lrea !;et'H'('11 <br />tributary habitat and large river habitat. Both lal'ge riwr specip:; <br />(Colorado sCJuawfish, bonytai] chub) amI tribulary sJlecies (roulldtail <br />chuh) were present. The [ish fcnllla was dOlllinaled by the natiyc f1all- <br />nelmouLh sucker. hluehcad sucker and roulltltail dmb. <br />The Yillllpil Bin'r system contains t\\'o fj"hp, no\\' considered rare <br />.IIHI (.ndangen'd, Color.Hlo squawfish illld hllTI' ;ck clud). It rOlltaillS <br />two others tllat arc also Yf'ry rare. hllmpllilck , r .1Ild bOl'Ylail cllldl. <br />!\'one were common in the streillll ('xcepl Coj, Hlo slluawfish during <br />J Illy. <br />Colorado sq\la\\fish alllludilllCl' 1'0-;(' sllarph' \\"IIl'1I riYl'r 1l'lIq)('I'.I- <br />Inn's stilhilized at flS--70 F. The Yalllpil is n'idli,"cly cold aud Illrhid <br />during sprillg I'lIl1olT. dparill!.!: alld warllllllg ns \\alel's l"l'cpd,' d\lri\lg <br /> <br />W9 <br /> <br />~...,~~ IJ=--.. ~.''T'''''!'''':'"''l'''"'''''~~~'''''''''''''~~~lIf~,.,'.''io."..:",._ :';"'~~~.~'_"~?.._'F'-~""""'_"._ ~,__~.._ <br />
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