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
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Table A2. Lower Grave Creek Demonstration Project area electr<strong>of</strong>ishing. Numbers are total<br />
catch within <strong>the</strong> 1,000 foot section.<br />
Year 2000 A 2001 B 2002 C 2003<br />
Westslope Cutthroat 4 18 3 13 (n/a)<br />
Rainbow Trout 1 17 26 24.5 (28.7)<br />
Brook Trout 1 10 5 8.5 (18.2)<br />
Bull Trout 9 33 5 40.5 (144.4)<br />
Mountain Whitefish 54 3 33 21 (21.4)<br />
Long Nose Dace 6 ----- ----- -----<br />
Water Temp. 0 C ----- 17 ----- -----<br />
Ef<strong>for</strong>t (minutes) 44 56.9 NA NA<br />
A) Four bull trout > 490 mm were likely lacustrine - adfluvial fish from <strong>Libby</strong> Reservoir<br />
moving into Grave Creek to spawn. Three bull trout < 75 mm were also included in <strong>the</strong><br />
total.<br />
B) Four bull trout > 470 mm were likely lacustrine - adfluvial fish from <strong>Libby</strong> Reservoir<br />
moving into Grave Creek to spawn. Long nose dace were observed but not counted in<br />
2001.<br />
C) Due to <strong>the</strong> presence <strong>of</strong> approximately 2,000 mature kokanee, <strong>the</strong> section was snorkeled<br />
ra<strong>the</strong>r than electr<strong>of</strong>ished. Two adult bull trout were observed that were likely lacustrine -<br />
adfluvial fish from <strong>Libby</strong> Reservoir moving into Grave Creek to spawn. Long nose dace<br />
were observed but not counted.<br />
150
Change language