Catfish Creek Swiss Valley Park
Analysis Summary for Series #2791
Benthic Macroinvertebrate Index of Biotic Integrity (BMIBI)
| Metric Name | Value | Score |
|---|---|---|
| MH Sensitive Taxa | 4 | 4.44 |
| SH Dom FFG % | 51.94 | 7.63 |
| MH Total CW Taxa | 0 | 0 |
| MH Tricop No Hydrop | 2 | 3.1 |
| MH Tolerant % | 20 | 5.92 |
| SH CW % | 0 | 0 |
| SH Hydropsyche % | 17.96 | 0 |
| SH Hydropsychinae % | 23.95 | 6.38 |
| BTI | 5.1 | 4.77 |
| *Mouse-over metric for full name | ||
| **Final IBI is sum of scores multiplied by 1.1111 | ||
Analysis Factors
| Factor | Value |
|---|---|
| BMIBI Type | Cold Water |
| Sample Date | 8/21/2024 |
| Sampling Series | Series #2791 |
| Drainage Area (mi2) | 12.137 |
| Log(DA) | 0 |
| Calculation Last Updated | 7/22/2025 3:33:39 PM |
| Sampling Gear | Hess |
Sessions used in this analysis
BMIBI Score
36
Cold Water
Not Assigned
BMIBI Score Explained
This site was analyzed using the BMIBI-Cold Water assessment methodology.
A detailed analysis of the IBI score has not yet been determined for coldwater IBI metrics.
This location has been classified as a Rejected Reference Site. This site was a Reference Site at one time, but subsequent biological assessments have determined that this site no longer meets the qualifications of a Reference Site.
EcoRegion Comparison
Scores for a sampling session are compared against reference sites within the same ecoregion:
Paleozoic Plateau (Driftless Area)
This site is in the Paleozoic Plateau (Driftless Area) ecoregion.
| Max | 92 |
| 75th Percentile | 77 |
| Median | 68 |
| 25th Percentile | 59 |
| Min | 42 |
| This Session's Score | 36 |
| Total Reference Site Samples | 106 |
| Mean | 67.95 |
| Standard Deviation | 12.17 |