Boone River Stratford
Analysis Summary for Series #2082
Benthic Macroinvertebrate Index of Biotic Integrity (BMIBI)
Metric Name | Value | Score |
---|---|---|
MH Total Taxa | 29 | 5.58 |
SH Total Taxa | 11 | 4.85 |
MH EPT Taxa | 20 | 7.41 |
SH EPT Taxa | 9.33 | 6.35 |
MH Sensitive Taxa | 5 | 4.55 |
SH Ephem % | 34.26 | 4.38 |
SH EPT % | 56.09 | 5.87 |
SH Chiron % | 42.31 | 5.83 |
SH Scraper % | 9.09 | 2.03 |
SH Top3Dom % | 76.19 | 3.78 |
SH Dom FFG % | 68.47 | 5.26 |
MHBI | 5.05 | 7.22 |
*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 | 7/19/2017 |
Sampling Series | Series #2082 |
Drainage Area (mi2) | 887 |
Log(DA) | 2.94792361983173 |
Calculation Last Updated | 4/18/2025 6:46:46 PM |
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and habitat specialists are rare; EPT taxa are still dominant in abundance; however, the most-sensitive EPT taxa have been replaced by ept taxa that are more tolerant of organic enrichment; the community is not well-balanced; a few taxa clearly dominate in abundance, collector-gatherers or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 | 53 |
Total Reference Site Samples | 161 |
Mean | 58.18 |
Standard Deviation | 13.09 |