Ecoregional Results - National Rivers and Streams Assessment 2018-19
For each ecoregion, the National Rivers and Streams Assessment 2018-19 assessed information on a number of important indicators .
To highlight key findings from each ecoregion, the user can examine and compare results across condition categories for:
- biological condition based on benthic macroinvertebrates
- key stressors
- changes in river and stream condition between the 2013-14 and 2018-19 report*
Results for the "good" category for all indicators are also presented in a graphical format to allow users to examine and compare results more fully across this category.
Additional ecoregion-level results are available on our interactive NRSA Dashboard, including information on individual indicators across all four condition categories. General descriptions of the ecoregions are available on the NARS Ecoregions page.
- Coastal Plains
- Northern Appalachians
- Northern Plains
- Southern Appalachians
- Southern Plains
- Temperate Plains
- Upper Midwest
- Western Mountains
- Xeric
