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<br />Table 6. Adult Colorado pikeminnow 1998-2010 simulated length-frequency data (age-class structure positive response <br />scenario) <br /> <br />Age-class 1 Total Length Numbers of fish In) in each totallenQth ranQe bv vear <br />(years) RanQe (mm) 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 <br /> 100-150 1 3 <br /> 150-200 1 2 2 1 <br /> 200-250 1 5 2 1 1 1 5 3 2 1 10 10 4 <br /> 250-300 2 3 6 4 2 1 3 7 6 4 3 15 12 <br /> 300.350 5 1 5 7 4 3 1 2 6 5 1 5 14 <br />5 350-400 2 2 4 3 8 5 2 2 3 2 2 2 3 <br />6 400-450 3 3 1 3 4 11 8 8 7 3 6 1 3 <br />7-8 450-500 3 3 2 2 3 8 12 13 15 3 3 6 2 <br />9-10 500.550 4 4 5 2 2 3 6 11 18 18 4 4 3 <br /> 550-600 8 5 8 6 4 2 3 5 9 15 15 3 3 <br /> 600-650 9 8 10 8 7 4 2 3 3 9 8 10 8 <br /> 650-700 8 7 10 12 10 6 3 1 2 4 7 10 12 <br /> 700.750 4 7 11 9 12 8 8 3 2 2 7 5 9 <br /> 750-800 2 2 5 4 7 11 9 6 2 2 2 3 4 <br /> SOO-850 1 2 1 2 10 12 10 6 3 1 1 1 <br /> 850-900 1 2 1 2 2 4 10 10 8 1 1 1 <br /> 9OD-950 1 2 1 2 6 8 10 12 1 <br /> 950-1000 2 1 3 2 3 2 2 3 1 <br />Sample Size (N = Sum of n)= 52 52 74 66 69 82 79 88 100 94 82 92 81 <br />Number of 'Age'-c1asses (S)= 13 14 15 16 15 17 15 16 16 18 16 17 16 <br />Mean Total LenQlh2 (Ll= 541 553 571 587 597 616 600 595 583 589 587 551 515 <br /> <br />. <br /> <br />. <br /> <br />1 Age-tlasses are based on average length of fish of this age. Individual variability in growth rates may blur age-class boundaries (see text). <br />2 Mean total length was calculated by laking lhe sum of the products of the mid-point of each length range time lhe number of fish (n) in each length <br />range, lhen dividing that sum by the total number of fish (N), <br /> <br />>-' <br />N <br />