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

Iowa DNR Biological Monitoring and Assessment Database

The Iowa DNR's ambient biological assessment program has surveyed fish, benthic macroinvertebrates, and aquatic habitat across the state to assess the health and biological integrity of Iowa's streams and rivers. BioNet provides access to all data collected as part of this program.
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Name County EcoRegion