Benthic macroinvertebrate information

What in the world are benthic macroinvertebrates? For more information download these two PDFs from the Iowa DNR:
Benthic macroinvertebrates fact sheet
Iowa Benthic Macroinvertebrate Key 

Iowa Water Center

Iowa DNR Watershed Improvement

Iowa DNR Watershed Monitoring and Assessment

IDALS Water Resources Bureau

IDALS Field Services Bureau

Iowa 303(d) List of Impaired Waters

USDA NRCS Web Soil Survey

Iowa Environmental Mesonet Rainfall Data

IOWATER Volunteer Water Quality Monitoring

Iowa DNR Interactive Mapping

About NRCS Mississippi River Basin Healthy Watersheds Initiative (MRBI)

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