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<br />OOtJ75~ <br /> <br />6 <br /> <br />5 <br /> <br />Adult distribution <br />( > 550 mm long) <br /> <br />I <br /> <br />!!! <br />E <br />- <br />-" <br />~ <br />"- <br /> <br />3 <br /> <br /> <br />4 <br /> <br />2 <br /> <br />1 <br />r8i!iI <br />OIk:JC;;:O_IIlIIIl=lIIIi <br />1234567 <br />Study strata <br /> <br />8 9 <br />I <br />15-mile reach <br /> <br />f-i~re 4 Longitudinal variation in densities of adu!! Colorado pikeminnow in tile Colurado <br />River. Fish per milewa!l calculated u5ingannual populatione>timates(I99I_1994 and 1998_ <br />1999) for the lower (5trata 1-6) and upper (~tril1a 7-9) reackes, proponion offish captured <br />each ytar greater than SSO mm. and correction factors that aewunt for effon per stratum and <br />miles per stratum. See Fig. I for strata locations and Osmundson and Burnham (1998) for <br />sampling methodolo!ty <br /> <br /> 650 <br /> 600 Average size <br />- <br />E <br />E 550 <br />- <br />-" <br />- <br />'" SOO <br />c <br />!!! <br />c 450 <br />ro <br />'" <br />" 0 <br /> 400 <br /> 350 <br /> 1 2 3 4 5 6 7 8 9 <br /> Study strata <br /> <br /> <br />Figure S. Longitudinal variation in mean length of Colorado pikeminnow captured with <br />trammel netling and dectrofishing in the Colorado River Values are means of annual means <br />(1991-1994 and 1998_1999) See Fig. 1 forslrata localionsand Osmund.o;on and Burnham <br />(1998) for sampling methodology <br /> <br />7 <br />