Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

Burr Oak Creek Troy

Analysis Summary for Series #1633

Benthic Macroinvertebrate Index of Biotic Integrity (BMIBI)

Metric Name Value Score
MH Total Taxa 26 7.64
MH EPT Taxa 7 4.35
MH Sensitive Taxa 2 2.81
*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 6/5/2013
Sampling Series Series #1633
Drainage Area (mi2) 10.347
Log(DA) 1.01481444908705
Calculation Last Updated 7/22/2025 3:28:45 PM
Sampling Gear No valid quant
BMIBI Score

Invalid IBI

No valid quant
Invalid Sample

A BMIBI Warm Water analysis is considered invalid if any of the following are true:

  • There are no quantitative sessions with 85 or more individual benthic macroinvertebrate collected
  • There is no qualitative sample
  • The qualitative sample does not contain at least one individual benthic macroinvertebrate

The WW single-habitat metric values are neither calculated nor displayed for invalid samples.