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Contents <br />Reservoir Elevation 6795 ft <br />Three sets of 0 -plus (60 mm mean TL) and 1 -plus (110 mm mean TL) white suckers were <br />handled and introduced into a simulated insertion port and receiving pipe using the same <br />methods as the fish used to test the sleeve valve to discern the extent of incidental handling <br />mortality. The fish were measured, netted, and handled as test fish were and were held in the <br />same containers and in the same water quality conditions. There was no incidental handling <br />mortalities at 0 hrs for either group of white suckers. At 96 hrs after handling and holding, a <br />total of 21 0 -plus white suckers died for a mean survival rate gf,93 percent however and no 1- <br />plus white suckers died after 96 hrs (table 3). <br />Inserted I .4 hr2 L96 hrs I # Survi4r3 % Survival <br />White Sucker (60 mm) 100 U ,. 8 92 92.00 <br />White Sucker (60 mm) 100 0" 7 93 93.00 <br />White Sucker (60 mm) 100 0 6 94 94;(10. <br />White Sucker (110 mm) I f(O �" 0' ' 100 I 100 <br />White Sucker 110 mm 160, (3 0 100 100 <br />White Sucker (110 mm) 100 0 0 100 100 <br />Table 3. <br />At the reservoir elevatidif c <br />white suckers (mean TL 6( <br />were injecte , and trial 2 w] <br />Total length "measurements <br />total 83 fish which Was the <br />injected into the dischatge <br />0 -plus white sucker survivs <br />butterfly valve were manu <br />of 60 nitnand 110 mm White suckers. <br />6795 ft;. a total of seven trials were performed using 100 0 -plus <br />nm, mean width 6.9 mm) per trial except for trial 1 where 98 fish <br />re 99 fish wet'e used, those 3 fish escaped before being injected. <br />f the 0 -plus white suckers ranged from 45 to 85 mm. Trial 7 had a <br />;mlpder of the 0 -plus white sucker supply. Each replicate was <br />Peypstream of the sleeve valve to test the effectiveness to eliminate <br />at: a pressure of approximately 36 psi. The sleeve valve and <br />y opened and closed for each trial. <br />For trial 1, one 53 mm white sucker was found alive in the spillway and survived beyond 96 hrs <br />after sleeve valve passage. <br />For trial 2, one 62 mm white sucker was found alive in the spillway and survived beyond 96 hrs <br />after sleeve valve passage. <br />Page 31 <br />