Fish community information collected from the Ohio River and various tributaries via boat electrofishing (1991-present), rotenone surveys at lockchambers (1957-2005), and benthic trawling (2006-2008).
For more information on Fish Population data, please contact Daniel Cleves.
Fish Population Data
| ORSANCO Biological Indices and Assessment Methodology | Download |
| Ohio River Main Stem Fish Population - 2010-2023 | Download |
| Ohio River Main Stem Fish Population - 2000-2009 | Download |
| Ohio River Main Stem Fish Population - 1957-1999 | Download |
| Ohio River Tributary Fish Population, Excluding Main Stem Ohio River - 1957-2016 | Download |
| Survey Site Catchment Attributes | Download |
| Catchments Attributes Metadata | Download |
| Biological Site Habitat Info – Habitat Class and Raw Substrate and Depth | Download |