Chad is a Fish Biologist at the Columbia Environmental Research Center.
Science and Products
Field evaluation of carbon dioxide as a fish deterrent at a water management structure along the Illinois River
Construction of a water management structure (WMS) in the levee surrounding The Nature Conservancy’s Emiquon Preserve (Havana, Illinois, USA) created a new hydrological connection and potential aquatic invasive species pathway between the Illinois River and a large conservation wetland complex. Site managers need a control tool that deters the upstream passage of non-native fishes into the wetland
Authors
Aaron R. Cupp, Justin Smerud, John Tix, Susan M. Schleis, Kim T. Fredricks, Richard A. Erickson, Jon Amberg, William S. Morrow, Carolyn M. Koebel, Elizabeth A. Murphy, Chad Vishy, K. Douglas Blodgett
User’s manual to update the National Wildlife Refuge System Water Quality Information System (WQIS)
National Wildlife Refuges may have impaired water quality resulting from historic and current land uses, upstream sources, and aerial pollutant deposition. National Wildlife Refuge staff have limited time available to identify and evaluate potential water quality issues. As a result, water quality–related issues may not be resolved until a problem has already arisen. The National Wildlife Refuge S
Authors
Kimberly A. Chojnacki, Chad J. Vishy, Jo Ellen Hinck, Susan E. Finger, Michael J. Higgins, Kevin Kilbride
Science and Products
- Publications
Field evaluation of carbon dioxide as a fish deterrent at a water management structure along the Illinois River
Construction of a water management structure (WMS) in the levee surrounding The Nature Conservancy’s Emiquon Preserve (Havana, Illinois, USA) created a new hydrological connection and potential aquatic invasive species pathway between the Illinois River and a large conservation wetland complex. Site managers need a control tool that deters the upstream passage of non-native fishes into the wetlandAuthorsAaron R. Cupp, Justin Smerud, John Tix, Susan M. Schleis, Kim T. Fredricks, Richard A. Erickson, Jon Amberg, William S. Morrow, Carolyn M. Koebel, Elizabeth A. Murphy, Chad Vishy, K. Douglas BlodgettUser’s manual to update the National Wildlife Refuge System Water Quality Information System (WQIS)
National Wildlife Refuges may have impaired water quality resulting from historic and current land uses, upstream sources, and aerial pollutant deposition. National Wildlife Refuge staff have limited time available to identify and evaluate potential water quality issues. As a result, water quality–related issues may not be resolved until a problem has already arisen. The National Wildlife Refuge SAuthorsKimberly A. Chojnacki, Chad J. Vishy, Jo Ellen Hinck, Susan E. Finger, Michael J. Higgins, Kevin Kilbride