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<br />I <br />, <br />I <br />I . <br />..................... ........................................................................., ~:;;::r~J? <br /> <br />...................................................................................................1 J~ c-1. <br />I./e ,,/"-<-- <br />20351 <br /> <br />01163 <br /> <br />, <br /> <br />1---- <br /> <br />Estimated and ProJected Humpback Chub Populatlon (LCR stock) In Grand Canyon, Assuming Different Recruitment <br />Levels <br /> <br />12000 <br /> <br />....... Age 2 I <br /> <br />_4+ Wllh Half Recruitment <br /> <br />---&-4+ Wlth CUrrent Recruilmenl <br /> <br />--e---4+ with Double Recruitment ... <br />I <br /> <br />! <br /> <br />i-{ii <br />'" <br />.- <br />, 0 <br />.il <br />E <br />, <br />z <br /> <br /> <br /> <br />4000 <br />.. <br /> <br />.........................................................................................1 <br /> <br />2000 <br /> <br />4..........-.... <br />.... <br /> <br />o <br />1990 <br /> <br />2020 <br /> <br />1995 2000 <br /> <br />2005 <br /> <br />2010 <br /> <br />2015 <br /> <br />2025 <br /> <br />2030 <br /> <br />Year <br /> <br />Figure 7 Estimated and projected abundance of the LCR humpback chub population CAges 2 <br />and 4+) for different recruitment scenarios. <br /> <br />v_~~jl / II r.#- / / / .q/~y de..-c,u.<....._Jhv"-l <br /><!<. to d~'"b~ ~,M I~ 'fa ~ /,; <br /> <br />II,.€'- <br /> <br />;',~j5 <br /> <br /><j4vv/~ ~'r <br /> <br />/ <br />,ip ~_../ j::::. ,/.-?,;/ <br />/ <br /> <br />" . <br />./_/~^," ,'~0 <br />7~~'~ J' <br />/YO' ~~ <br /> <br />Draft - April 21, 2003 <br /> <br />13 <br />