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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Number per Liter<br />
15<br />
10<br />
5<br />
0<br />
April May June July Aug Sept Oct. Nov<br />
Month<br />
Daphnia Bosmina Diaptomus<br />
Cyclops Diaphanosoma Epischura<br />
Leptodora<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
Number per M^3<br />
Figure 42. Mean monthly zooplankton abundance estimates <strong>for</strong> 7 genera observed in <strong>Libby</strong><br />
Reservoir from 1997-2003. Abundance <strong>for</strong> Epischura <strong>and</strong> Leptodora are expressed in<br />
number per cubic meter. All o<strong>the</strong>r densities are expressed as number per liter.<br />
107