Fish passage for warm water fish species

David Admiraal, Steve Schainost

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In 2002, netting surveys in the Cedar River upstream of Spalding, Nebraska revealed very low numbers of native fish such as channel catfish. At Spalding, a low-head (∼3.6 m) dam blocks the Cedar River, and the species that exhibited low numbers usually migrate upstream to breed. The low fish counts are not atypical of streams in Nebraska that are straddled by low-head dams. In 2003, because of necessary repair work, the Spalding reservoir was drained, and the Cedar River ran freely through the reservoir. A brief netting survey in the river revealed a dramatic increase in channel catfish and other migratory species. While the reservoir was empty, small fish were observed migrating up the tailraces. Velocities in the tailraces were measured and will be used, along with other information, to design a low-velocity bypass for the dam. Critical velocities determined for the fish in the study and the resulting low-velocity bypass design will provide a practical solution for fish migration problems throughout Nebraska.

Original languageEnglish (US)
Title of host publicationProceedings of the 2004 World Water and Environmetal Resources Congress
Subtitle of host publicationCritical Transitions in Water and Environmental Resources Management
EditorsG. Sehlke, D.F. Hayes, D.K. Stevens
Pages1232-1241
Number of pages10
StatePublished - 2004
Event2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management - Salt Lake City, UT, United States
Duration: Jun 27 2004Jul 1 2004

Publication series

NameProceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management

Conference

Conference2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management
Country/TerritoryUnited States
CitySalt Lake City, UT
Period6/27/047/1/04

ASJC Scopus subject areas

  • Engineering(all)

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