|
<br />
<br />OOi)~i7~
<br />
<br />fne--BUl"~u-'Of ReclamatIon has constructed a fish passage at the Grsnd---V"1fey
<br />fl'T'9t!llOl"t-€o",plI:"'Y GV1C diversion damiPltIlS1tde-j, IS prepatlng the environmental
<br />assessment for a passage structure at the Price-Stubb dlversion,,QaW.,,,!!,nq h,!s U)ltlated
<br />plans lor passage at the 6ove, n" 'LntHlghllrle (RollI;, Dam) Grand_Vall'ilY.P.loject on the
<br />upper Colorado River. Successfully providIng fish passage at these diversion dams
<br />would benefit both Colorado pikeminnolV and razorback sucker by providing access to
<br />,
<br />aooro~imatelv 50 miles of the nver that was used hlstoneallv bvthese fishes To
<br />"." . - , ' ,_." ~", " ' ", ..... '" 'o..~ "
<br />creven! entrainment of endanQered fishes into diversion"canal$.]ist1 scre_e.fls ate
<br />planned 10,r GVIC and the Grand Valley p'rojecl. Four floodplain sites on the Colorado
<br />RIver have been restored, a gravel pit at29 5/8 Road in Grand Junclion."i[! sirte at
<br />Waller Walker SI.Jte Wildlife Area on the Colorado RI~~~downstream of !rOfT] Grand
<br />Juncllon: an area near Adobe _Creek dow~_st~'il,af!ll'.!.from~Y"alte:r,\y;3lkewnd~!J1.J;.jarvls
<br />SIte In Grand ~U,!ctIO~J.- Perpetual easements have been acauir~d on.thr~ properties (
<br />58 acres); two properties have been acquired inJee (171 acres).
<br />
<br />Broodstocklrefuge populations olColorado Plke,;n,in!'9w and raz.or.bac,~_s~c,ke,U1,av,,!....
<br />been developed Irom Colorado R,ver Bnd Green RIVer sloc;ks. Colorado pikemmnoY(
<br />are currenllv beirlli \ranslocaled a'nd.'i'inorback sucker ;irecu~ntlY being Slocked '
<br />upstream 01 in-channel barriers to utilize more historic.,habitat, Colorado has prep,arep
<br />a olant9 _stoc~ bonvtail in tile Colorado River and stocking is'~"pecled~o occurred lor
<br />the first timein'2001~ ~-fT!ttb",come ~1f1'liltlhlettt-lhe ftPo,opnsie--sire:
<br />
<br />36 GUNNISON RIVE~
<br />
<br />361 imwrtanc~
<br />
<br />The Gunnison River IS currently occupied oy wlJ' Colorado pikeminnow hl'tbltftt and Is
<br />hisloricft+ habitat for the razorback SUCker and bonylail-chtib Several adull Colorado
<br />pikemlnnow were captured In the Gunnison River in fishery surveys conducted in 1992
<br />and 1993, Unrestricted miQration of fish ~iis.be~'llt~I\~d by the 10-loot high Redlands
<br />diverSion dam located two 2 mIles ftDove ~pstream f[oJTJ the mouth of the Gunnison
<br />River. Several 11'1"\1'1'11 Colorado plkemlnnow larvae have been COllected in the Gunnison
<br />,,",., ."...."
<br />River immediatelv downstream of from the Redlands diverSion earn, Kidd (1977)
<br />,
<br />reported that adult razorback Sucker were collected IreQuenlly by commerCia! nshermen
<br />' ,.' . ,...._...-'-
<br />near Delta, .coIQrado, between 1930 and 1950. No Wild razorback Su~C( have not
<br />been collected in the Gunnison RIver in recent times, although the reach near Delta;
<br />€-%l'3do Is considered a pnorlty razorbaCk Sl,ll;ker restoration SIte,
<br />
<br />362 Recovery Actions
<br />
<br />Recovery activities on the Gunnison River are focused On operating and evaluating a
<br />fish ladder at the Redlands diversion da.r:n.r,~opera\ing the Aspinall Unit to improve
<br />now/habItat conditions In)~e,pur:l9IS9':1.,.R,ver, and.-'es,tor$s..!!~ed bOlt,~i1,~~~~(lb,irtats
<br />flear Del\a:-Golorm1o, Perpetual easements ha,!,e been,aCCluITed ,OnJ/lree.p[Opet1iel;
<br />.
<br />(198 acres); Construction of a fish ladder at the Redfands dIversion dam was
<br />8mpleted in 1996 and has prOVided for passage 01 ~.olorad.Q pikeminno~pzorb9,ck_
<br />sucker. and other native fishes (as welf as allowing exclusion 01 nonnative fishes). lhe
<br />
<br />20
<br />
|