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<br />) <br />Federal Register'l Vol. 58, No. 18 <br /> <br />~ <br />I Friday, January 29, 1-993 I Proposed Rules <br /> <br />6585 <br /> <br />CriUcaI habitat fer each species by <br />State is summarized in Table 1, The <br />100-yeBl floodplain dalineates tho <br />lataral boundary of the proposed critical <br /> <br />habitat for the razorback sucker and <br />Colorado squawfish.Thls boundary <br />encompasses tha producUve areas <br />adjacent to the rivtml, including the <br /> <br />mouth. of smaller tributaries and other <br />habitats that provide .....nU.1 fish <br />bahitat wben inundated. ' <br /> <br />TABLE 1,-flIYER KILOMETERS (MILES) OF CRlTlCAL HABITAT FOR FouR ENOANGEREO COlORADO RIVER FISHES <br /> <br /> Slmo Fla2od>ad< CoIotIdo ~ BonyIall TOlIll' <br /> - cqua_ chul> chul> <br />Coiolado ..--------....-..-.----.----.........-....-..-..---.--.-.-- 348 5B3 Il5 Il5 683 <br /> (21n (362) (58) (58) (362) <br />Ulah .-.------....-.-----.-...---------.--- 1107 1188 22_ 224 lln <br /> (688l (T2e) (139) (I:!II) (728) <br />N.._ ..-..-._--_....._....._----_..._-_...._.~....._.......-.--..---..-..- ~ 'J7 ..--..-.- ,-- 87 <br /> (31) (80) .---. (1lO) <br />------------ -------- 0Q3 ........._- 2Q1 m <br /> (Bm -...........--. (Ial) (BIn <br />AZlN8Y8<la ........-..-.-.--..-.....---...------........-----..............-...-........ 201 ..........-..-- .......-.-- 132 209 <br /> (130) ............_-. ---.- (82) (130) <br />AZlCaliforN .. ._-_._......._-_.._......~... -'- 21' ............-- --- 103 317 <br /> (133) -"---'--'- ,._- (114) (1m <br /> Basin TOl8.12 ...--.-.-...--.............---.------..-. 21136 ,- Bl0 564 3370 <br /> (1824) ("48) (378) (3014) , (2094) <br /> <br />'TCItII--OIIIIncM ft*ldI .. ~ crMcaJ habtM I'MCtIft tlJ s-. tor.. tow Cdcndo Rhw ~ ..... <br />'e.a..., Tglllll C~-Mh:UdllCCad""ac:rtlk\al"'" by ~ 1or'IN~ Bun. <br />~TI:UI Bun T~.,.....IIMII Of ~ hIIDUI""lpICiIIIla ~....,... _dIiIIIWw>>dulla........... own.o. <br /> <br />ROZOlbaclc Suwr <br />The Service ia propoain8 15 rseches of the Colorado River system as criUcal habitat for the razorbeclc rucker, These <br />reaches total 2.935 kilomBtllrS (1,824 miles) es maasured along the center line of the river within the subject reaches <br />(table 1), Tbi. '.~'''""''ts aP1'rnnmA'AIy '52% of the historical h.bitst for tha species, In the Upper Buin. critical hshilal <br />is baing propooed in, tha Groen. Yamp.. Duchesne, Colorado. White. GWIJlison. and San Jusn Rivers. Portiona of the <br />Colorado, Gila. SsII and V97de Riven ere being proposed In the Lower Sasin, These reaches flow through a variaty <br />of landownerohJp.. both public end privata. The approximeta milesge of critical hsbitat by landoWDmship of shorelins <br />for the ~0rb8ck sucker is presented In table 2, ' <br />TABLE 2.-<lWNERSHIP ~ SHoREulE IN KlLOIolETElIS (M11.El) FOR PRol'osED CRITICAL HAsrrAT FOR 1HE ENoANGEReo <br />COI.OIIAOO RIVER FISHES 1 <br /> <br /> ~. -- ~ ~ Ilorl\'lIII chul> <br /> "'"*" oqo 6In - <br />NPS ...........__..______ -..............-...-.-..------....---.-. 1,955 100 &48 888 <br /> (1.215) (558) (338) (A28) <br />BUA ..__,.._.. -- _.....~ ---- 1.147 1.118 203 134 <br /> (713) (<lll5) ('~ (83) <br />IJSFS ",...._,_____....c______....._",_____,______ - 0 0 0 <br /> (288) ..... -.-- <br />USFWS - .................._..._.___.._....___........_..._.~._ 159 35 0 40 <br /> (99) (22) - (25) <br />Tribal '.hh_____.___ -........---.-.------.------ 998 451 .... 138 <br /> (820) (280) ~ (88) <br />Stsre landi ..__...~.._.........._.._._._..-....._._--_..._. sa 78 1 40 <br /> (43) (48) (el) (25) <br />Prt\IlI11 ~--_..- .-......----.. ,-- 1,083 1112 Z1 so <br /> (673) (691) 1'71 l37l <br />TolaI .-. --..----------"- h 5.871 3,898 1.220 !;0IlI <br /> (3,1149) 12.29CI) (75/l) (682l <br /> <br />''''''"'''''~'''''._''__~l.IU'lg\Otat~~~, ~oI"" ~""'''-2 ~ClII ~bMd)~~ <br />habllll ,...,. n.w .. ......~~ ~ of PfOI:Il)Md ctill::8i ~ fMl:Na ~ ..... ....... kU rnM CJI CiI'aal h&bItaI klf III tour CoiOIadD RIWr .......... pqlOIIId !lit <br />o.~~bI~"""'1aD6& <br /><l ClnII Pu; s... 81" B.AilIIJ ~ Lanc:I "'III.QIIo._.L 1JSf'S.-(J..s. fo-_ e.va: 1.ISFW8-4J..$. FWl .nil 'IWcINe s.mce.. . <br /> <br />Humpback Chub <br /> <br />Tha Service is proposing seven <br />reaches of the Colmado Riv8r system es <br />critical habitat far the humpbaclc chub, <br />These reaches total 810 kilomete", (379 <br />miles) as moasured along the center line <br />of the subject reaches (table 1)_ This <br />represents approximately 28% of the <br />historical babitat of tho species, CriUcsl <br />habitat lor the humpback chub ia baing <br /> <br />proposed in the Colorado, Green, and <br />Yampa.Rivers in tha Upper Sssin, and <br />the Colorado and Little Colorado Rivars <br />in the Lower Sam. The approximata <br />mileega of critical habitat by <br />landownarshJp of shoreline for the <br />humpback chub is prasented in table 2. <br /> <br />Bony/ail Chub <br /> <br />The service Is pruposing live reaches <br />01 the Coloredo Rivet' system .s critical <br />habit.t for the bony/ail chub. These <br />reaches total S54 kilometers (344 miles) <br />as meesured along tha centet'line of the <br />subject reaches (table 1), This represents <br />approximately 15 percent oftha <br />historical habit.t 01 the species, Critical <br />h.bitat lor the bony/.i1 chub Is being <br />