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

Sampling Sites - Statistics and Summary

1,177
Total Sites
104
Reference Sites
33.22%
Sites Sampled for Fish in Last 5 Years
30.59%
Sites Sampled for Invertebrates in Last 5 Years

Thermal Classification

Major Basin

EcoRegion Distribution