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<br />22 Abundance Trends and the Status of the Little Colorado River Population of Humpback Chub 1989-2006 <br /> <br />I 1990 1995 2000 2005 1990 1995 2000 <br /> <br />l___________ _ _ ___ __ Ye~________~________~______~~~__ <br /> <br />'3) <br />C> <br /><( <br /> <br />CD <br />:t 20 <br /> <br />40 <br /> <br />~S::gN~;!!~=~!:;~~~~ <br />",-~ <br /> <br />30 <br /> <br />..::~~ii <br />g:~o~~I~I~ <br />& t · : ; ~? .... ~ , g <br /> <br />$ 0 0 ~ 0 <br />o ~ 0 fj 0 ~ e ~ <br />~:O : 0 <br /> <br />o <br /> <br />CD <br />01 <br /><( <br /> <br />40 <br /> <br />~ct)r.c_NIr)~~L["'jW~'<:t" <br /> <br />30 <br /> <br />20 <br /> <br /> <br />IV <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />i <br />I <br />I <br />._~ <br /> <br />Figure 3b. Numbers of humpback chub marked by age in years 1993-96 (dark circlesl and subsequently recaptured (light circles) by <br />age and year. The annual sample size is indicated by the number at the top of each bubble column and the distribution among ages is <br />indicated by the relative size of the bubbles within each columl1. <br /> <br />" <br /> <br />20 <br /> <br /> <br />10 <br /> <br />1990 <br /> <br />1995 <br /> <br />2000 <br /> <br />2005 <br /> <br />Year <br /> <br />40 <br /> <br />~~c.or--.~cOcn~t:G~:=r-cn <br /> <br />30 <br /> <br />o 0 <br />OOOI8~~ <br />8 0 ~..... ............... e......... t7J....... ~ GJ <br />a GJ..'.' '& Q) 0 0 <br />oo8t7J 8 0 <br />o 0 0 0 0 0 0 0 <br />~ Ii <, $ <br />e X'D <br />oS/X'Do <br /> <br />Cl) <br />:t 20 <br /> <br />10 <br /> <br /> <br />. <br />: <br /> <br />10 <br /> <br />1990 <br /> <br />1995 <br /> <br />2005 <br /> <br />2000 <br /> <br />Year <br /> <br />40 <br /> <br />g,_N........OO..-OOOO <br /> <br />30 <br /> <br />10 <br /> <br />i <br />; <br /> <br /> <br />2005 <br />