ALP 3

Contents
Largemouth Bass (65 mm mean TL)
At the reservoir elevation of 6877 ft, a total of 8 trials were performed using 100 live 1 -plus
largemouth bass (mean TL 65 mm, mean height 13.8 mm) per trial. Total length LMB
measurements ranged from 32 to 75 mm. No LMB escaped the insertion process in any of the 8
trials. Each replicate was injected into the discharge pipe upstream of the sleeve valve
immediately after the FHM to test the effectiveness to eliminate 65 mm LMB survival at a
pressure of approximately 71 psi.
For trials 1 through 8, no LMB were found alive immediately after sleeve valve passage. For the
8 replicates performed at the reservoir elevation of 6877 ft;,800 live 1 -plus largemouth bass (65
mm) were injected into the discharge pipe. No LMB were found alive immediately after sleeve
valve passage (figure 47) and none were found to bee 5611 breathing at 0.hrs. Immediate mortality
for the 55 mm LMB was 100 percent at an estimated reservoir pressure of 71 psi.
Immediate Mortality and Survival for
largemouth bass Mnvn? at 6077 Elev. ('71 psi) .
: s . S c r
TYI f�mMr
Figures 47. Immedia . nortai*—,;and survival A(O hrs after sleeve valve passage for 1 -plus
largeinijtlth bass (65 trim mean T'Llfor each renlicate at a reservoir elevation of 6877 ft.
(40 mm
At the reservoir elevation of 6977, ft, a total of 10 trials were performed using 200 live fathead
minnow (mean TV' mm, mean height 7 mm) per trial. Fathead minnow measurements ranged
from 28 to 71 mm. 'Turn FHH ei5caped the insertion process from trial 3 and 15 FHM were
ejected through the air l 1t , r valve once it became pressurized. Each replicate was injected
into the discharge pipe immediately before the bluegill to test the effectiveness of the sleeve
valve to eliminate 40 mm FHM survival at a pressure of approximately 71 psi.
For trial 8, two FHM (32 and 39 mm) were found alive in the entrainment nets and were still
breathing but were motionless and not upright. Both fish died within 24 hrs. No other trials had
any FHM survivors immediately after sleeve valve passage.
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