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<br />Maybell Gage Fall Hydrograph <br />1996 & Exceedence Flows (1916-1996) <br /> <br />BOO <br /> <br />700 <br /> <br />600 <br /> <br />, <br /> <br />_500 <br /><J) <br />~ <br />(J <br />'-'400 <br />:;: <br />o <br />u:: 300 <br /> <br />" .. <br /> <br />^. <br /> <br />200 <br /> <br />100 <br /> <br />o M!d,'; 'oa!di" W', 7 ~ai25' '091~2 'O'9/fO '091"8 109,1;16'" ,0kl4' j'o){;i : 'lb~J; I 10128' <br />Date <br /> <br />, <br />~ <br /> <br />l1ln: <br /> <br />1"3 <br /> <br />'''21 "/2<; <br /> <br />80% <br /> <br />50% <br /> <br />20% <br /> <br />19961 <br /> <br />Figure 6. 1996 fall hydro graph for the Yampa River, Maybell gage. <br /> <br />channel eatf,sh (predators and competitors) were also monitored to define their range 01 <br />movement both in and abovc Yampa Canyon. [n addition, in 1997 movernenh orpostspa\\ning <br />Colorado squawllsh will be monitored as they pass through Cross Mountain ('a 11\ on and the <br />Patrick Sweeney Diversion area to record flows fish can negotiate these potcnti"l barriers. <br /> <br />A total of thirty lish were Implanted with radio transmitters in the Yaml"l Riwl' in the <br />summer of 1996. Of these 30 lish. ten were Colorado squawfish (5 in the lowC\' camOll area and <br />5 in the upper river reach). 10 were channel catllsh (5 in the lower reach and " In tile' UPI'C\' <br />reach'!, five were Northern pike (upper reach) and five were humpback chub (I()\\(T real'hl. <br />Colorado squawlish, channel catlish, and \lorthern pike were implanted with ,,~6-m0I11h radio <br />transmiller (18 g). Humpback chub were implanted with a 6-month (6 g) tratNllillcr because or <br />their small body cavity and lower body weight. Radio transmitters were ;mpl(l11ll'd dunng the <br />months of .Iulv and August. Fish in the upper study reach were collected bv both ,l11ghng and <br />eleetrolishing gear and flsh in the len\cr study reach were collected solely In angling Weeklv <br />aerial surveys of all fish implanted was c(lnducted between 5 August and 20 S,"!,temhel 1l)9h. In <br />addition, another acrialllight was made on 29 October 1996 in an attcmplto determine ir <br />implanted fish migrated to different locations to overwinter. ScasonalmO\cmCnll1t' lish \vas <br />compared with flow changes in the river. <br /> <br />In adultion to the aerial surveys. iJtt~n1pts \vere made to monitor each ( ,\j(l]";:l(jO ~qLla\\ lLsh <br />and humpback chub everv two hours lhrl1ugh 8 24 hI' period. floats or rarh eLju'PI,ed \\ ilh \\'hip <br />antennas \\ere used to loca1l' fi~h and l':.:ad locations were determined llsing dirL',-'tlOn~lI antennas. <br /> <br />11 <br />