Sugar Creek Tipton Hwy 130 (TMDL#9)
Analysis Summary for Series #2707
Benthic Macroinvertebrate Index of Biotic Integrity (BMIBI)
| Metric Name | Value | Score |
|---|---|---|
| MH Total Taxa | 39 | 9.19 |
| SH Total Taxa | 12.33 | 7.36 |
| MH EPT Taxa | 13 | 6.52 |
| SH EPT Taxa | 7 | 6.17 |
| MH Sensitive Taxa | 2 | 2.24 |
| SH Ephem % | 5.64 | 0.72 |
| SH EPT % | 30.53 | 3.2 |
| SH Chiron % | 58.66 | 4.18 |
| SH Scraper % | 0.62 | 0.14 |
| SH Top3Dom % | 73.82 | 5.34 |
| SH Dom FFG % | 72.59 | 4.57 |
| MHBI | 5.88 | 4.15 |
| *Mouse-over metric for full name | ||
| **Final IBI is sum of scores multiplied by 0.8333 | ||
Analysis Factors
| Factor | Value |
|---|---|
| BMIBI Type | Warm Water |
| Sample Date | 7/31/2023 |
| Sampling Series | Series #2707 |
| Drainage Area (mi2) | 25.322 |
| Log(DA) | 1.403498004452 |
| Calculation Last Updated | 7/22/2025 3:39:15 PM |
| Sampling Gear | ArtSub |
Warm Water
Fair
Art Subs #1 & #2 each had one buried plate. Art Sub #3 had four buried plates. Art Sub #3 and #4 were combined, although #4 had no buried plates it was located in a lower than desired velocity setting.
BMIBI Score Explained
This site was analyzed using the BMIBI-Warm Water assessment methodology.
Sites that score between 31 - 55 are considered fair. Total taxa richness and EPT (Ephemeroptera, Plecoptera, Trichoptera) taxa richness are noticeably reduced from optimum levels; sensitive species and habitat specialists are rare; EPT taxa are still dominant in abundance; however, the most-sensitive EPT taxa have been replaced by ept taxa that are more tolerant of organic enrichment; the community is not well-balanced; a few taxa clearly dominate in abundance, collector-gatherers or collector-filterers often comprise more than 50% of the community.
This location has been classified as a survey site. Survey sites are compared to reference sites within the same ecoregion. A reference site represents natural stream qualities that are least disturbed by human activities within the watershed. Reference sites are grouped by ecoregion to establish a benchmark against which these survey streams are compared.
EcoRegion Comparison
Scores for a sampling session are compared against reference sites within the same ecoregion:
| Max | 86 |
| 75th Percentile | 70 |
| Median | 62 |
| 25th Percentile | 54 |
| Min | 20 |
| This Session's Score | 45 |
| Total Reference Site Samples | 120 |
| Mean | 61.41 |
| Standard Deviation | 10.8 |