Mitigation for the Construction and Operation of Libby Dam
Mitigation for the Construction and Operation of Libby Dam
Mitigation for the Construction and Operation of Libby Dam
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Table A5. Parmenter Creek (prior to <strong>and</strong> following channel reconstruction) depletion<br />
population estimate <strong>for</strong> fish > 75 mm per 1,000 feet using 95 % confidence intervals near <strong>the</strong><br />
Dome Mountain Road Bridge. Upper confidence intervals are in paren<strong>the</strong>sis.<br />
Year 2000 2001 2003<br />
Pre-reconstruction Post-reconstruction Post-reconstruction<br />
Rainbow Trout 92 (110.65) 79 (95.9) 110 (124.2)<br />
Brook Trout 18 (19.20) 1 2<br />
Bull Trout ----- 1 5.6<br />
Total Population A 108 (122.56) 81 (97.73)<br />
Water Temp. 0 C 14.4 ----- -----<br />
A). Includes rainbow, rainbow x cutthroat hybrids, <strong>and</strong> brook trout. Bull trout were not<br />
included in <strong>the</strong> total population estimate.<br />
Table A6. Pipe Creek depletion population estimate <strong>for</strong> fish > 75 mm per 1,000 feet using 95 %<br />
confidence intervals surveyed directly downstream <strong>of</strong> <strong>the</strong> Bothman Road Bridge. Upper<br />
confidence intervals are in paren<strong>the</strong>sis.<br />
Year 2001 2002 B 2003<br />
Rainbow Trout 42 (46.42) 73 (84.97) 39.1 (42.6)<br />
Brook Trout ----- 3 6.5 (7.6)<br />
Bull Trout ----- ----- ------<br />
Total Population A 42 (46.42) 73 (84.97)<br />
Water Temp. 0 C 18 17 ------<br />
A). Includes rainbow, rainbow x cutthroat hybrids, <strong>and</strong> brook trout. Bull trout were not<br />
included in <strong>the</strong> total population estimate.<br />
B). Also captured were 43 mountain whitefish ranging from 51 to 105 millimeters <strong>and</strong> one<br />
pumpkinseed sunfish 74 millimeters in length.<br />
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