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MACROINVERTEBRATE ANALYSIS <br /> Investigator: Linda Ulmer <br /> Forest/District: White River National Forest <br /> Stream: BEAR CREEK <br /> State/County: Pitkin County <br /> Diversity Standing Number Biotic <br /> Index Crop of Number Condition <br /> DAT g/m2 Organisms of Index <br /> Station Location Date (mean) mean /m, Taxa B I 50 <br /> 1 06-13-90 11.2 0.4 30 80 <br /> Scale DAT Standing Crop BCI <br /> Excellent 18 - 26 4.0 - 12.0 above 90 <br /> Good 11 - 17 1.6 - 4.0 80 - 90 <br /> Fair 6 - 10 0.6 - 1.5 72 - 79 <br /> Poor 0 - 5 0.0 - 0.5 below 72 <br /> 4 <br />