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<br />396 <br /> <br />100 ' <br /> <br />J, KORMAN, S, M, WIELE AND M, TORIZZO <br /> <br />\00 <br /> <br />80 <br /> <br /> <br />j:~~T <br />20 ,\\: _ _. _ . . _ _ _ _ . <br /> <br />, <br /> <br />R1 <br /> <br />o <br />o <br /> <br />2000 <br /> <br />- - i <br /> <br />JOOO <br /> <br />1000 <br /> <br />100 I <br />I R2 <br /> <br />):I~ , <br />~ :it:~~. -~; <br /> <br />o l__.~~..___~___" <br />o 1000 2000 3000 <br /> <br />100 " <br /> <br />eo. <br /> <br />R3 <br /> <br />" <br />. <br />c <br />'i! <br />! <br />'J'. <br /> <br /> <br />o ' <br />o <br /> <br />'000 <br /> <br />2000 <br /> <br />[bchuge (mln..c) <br /> <br />Swimming Bella"""'.. <br /> <br />-+--Pasalvt <br />- r- Alto_O 2 <br />--+--Geo_O 2 <br /> <br />-~_O,l <br />- - - - 4>_0,2 <br /> <br />~ <br /> <br />I:~'A' <br />~ ~V <br /> <br />R4 <br /> <br />~ <br />--.. . <br /> <br />~ <br /> <br />20 <br /> <br />o <br />o <br /> <br />1000 <br /> <br />2000 <br /> <br />3000 <br /> <br />100 ; <br />; <br /> <br />.., <br />. <br />c <br />'i! <br />, <br />~ <br /> <br /> <br />RS <br /> <br />.. <br /> <br />0' <br />o <br /> <br />2000 <br /> <br />3000 <br /> <br />1000 <br /> <br />3000 <br /> <br />':j]~ <br />" . <br />~ 601 "- <br />! I la..... <br />~ ." I"..:.~ ...... - ~_~ ~.. <br />2Oj- ~.i.'- . --. <br /> <br />01 <br />o <br /> <br />ALe <br /> <br />1000 <br /> <br />2000 <br /> <br />3000 <br /> <br />100 <br /> <br />80 <br /> <br />PAL <br /> <br />" <br />! 60 <br />'i! <br />, ." <br />~ <br /> <br />~"''''' J..-- <br />;....~-- <br />"- -:::;. <br />20 ....._-....~ <br /> <br />o <br />o <br /> <br />t 000 2000 <br />P:t.cl\argeC.....K) <br /> <br />3000 <br /> <br />Figure 10. Effects of discharge on relenlion rate of sill1ulated particles moving underdifferenl assumplion.." of swimming behaviour aJ\d speed. <br />'Oeo: 'Rhea,' 'Up: and 'Pocosivc' denote geolac[ic, rheotactic. upstream. and passive swimming beha..iolU$. respectively (see Table rv for <br />details). Non-passive behaviours were simulated using swimming speeds of 0.2 ;Uld 0.1 mls <br /> <br />operations on juvenile humpback chub must be addressed by monitoring the response of critical population para. <br />melers to flow manipulations conducted within a sound experimental design, <br />The reduction in diurnal-flow variation from GeO through the implementation of the MLFF regime reduced the <br />average daily suitable habitat availability relative to the 'no action' regime that maUmized hydropower revenues <br />(Figure 7), This occurred because the MLFF regime, which reduced power-load following (Table ill), also reduced <br />the frequency of low-flow periods when habitat availability was highest. On the other hand. our analysis based on <br /> <br />Copyright \0 2004 John Wiley & Sons, Ltd. <br /> <br />Ri\~r R~J. Applic. 20: 379-400 (2004) <br />