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<br />24 Abundance Trends and the Status of the little Colorado River Population of Humpback Chub 1989-2006 <br /> <br />In <br /> <br />Cl) <br />t::rl <br /><:( <br /> <br />Q) <br />C> <br /><:( <br /> <br />40 <br /> <br />2~::::ro~;::! <br /> <br />30 <br /> <br />20 <br /> <br />" <br />: <br />. <br />, <br /> <br />.. <br /> <br />" <br /> <br />Q) <br />C> <br /><:( <br /> <br />Q) <br />C> <br /><:( <br /> <br />40 <br /> <br />I <br />[ <br />I <br />I <br />~~$~ I <br />i <br />I <br /> <br />; :: I <br />" I <br />Q Q <br />" <br />" I <br /> <br />I <br />I <br />i <br />I <br />I <br />[ <br />I <br />I <br />I <br />I <br /> <br />~~~ I <br />I <br />I <br />I <br />! <br />i <br />i <br />! <br />! <br />[ <br />I <br />i <br />I <br />I <br /> <br />i <br />I <br />__Y~~~_______________J <br /> <br />" <br /> <br />o 0 <br /> <br />" <br /> <br />10 <br /> <br /> <br />30 <br /> <br />20 <br /> <br />10 <br /> <br /> <br />1990 <br /> <br />1995 <br /> <br />2000 <br /> <br />2005 <br /> <br />1990 <br /> <br />2000 <br /> <br />2005 <br /> <br />Year <br /> <br />40 <br /> <br />Mlr.loo:t-N <br />~~c:(IM~ <br /> <br />30 <br /> <br />o <br /> <br />20 <br /> <br />o <br />& " <br />· g : <if ~ <br />i : G g <br />o 1? 0 <br />" <br /> <br />1995 <br /> <br />Year <br /> <br />40 <br /> <br />30 <br /> <br />. <br /> <br />20 <br /> <br />10 <br /> <br /> <br />10 <br /> <br /> <br />1990 <br /> <br />2000 <br /> <br />2005 <br /> <br />1990 <br /> <br />1995 <br /> <br />2000 <br /> <br />2005 <br /> <br />1995 <br /> <br />Figure 3d. Numbers of humpback chub marked by age in years 2001-04 (dark circles) 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 column. <br /> <br />Year <br />