Boone River Stratford
Analysis Summary for Series #1756
Benthic Macroinvertebrate Index of Biotic Integrity (BMIBI)
Metric Name | Value | Score |
---|---|---|
MH Total Taxa | 26 | 5 |
SH Total Taxa | 10.67 | 4.7 |
MH EPT Taxa | 20 | 7.41 |
SH EPT Taxa | 7.67 | 5.22 |
MH Sensitive Taxa | 3 | 2.73 |
SH Ephem % | 18.01 | 2.3 |
SH EPT % | 77.07 | 8.07 |
SH Chiron % | 18.05 | 8.28 |
SH Scraper % | 2.1 | 0.47 |
SH Top3Dom % | 75.26 | 3.93 |
SH Dom FFG % | 64.48 | 5.92 |
MHBI | 5.24 | 6.52 |
*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 | 8/28/2014 |
Sampling Series | Series #1756 |
Drainage Area (mi2) | 887 |
Log(DA) | 2.94792361983173 |
Calculation Last Updated | 4/21/2025 4:18:34 AM |
Sampling Gear | Hess |
Sessions used in this analysis
Warm Water
Fair
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and habitat specialists are rare; EPT taxa are still dominant in abundance; however, the most-sensitive EPT taxa have been replaced by ept taxa that are more tolerant of organic enrichment; the community is not well-balanced; a few taxa clearly dominate in abundance, collector-gatherers or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 | 84 |
75th Percentile | 68 |
Median | 59 |
25th Percentile | 51 |
Min | 10 |
This Session's Score | 50 |
Total Reference Site Samples | 161 |
Mean | 58.18 |
Standard Deviation | 13.09 |