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Recovery of prairie fish assemblages at the transition from channelized to nonchannelized: Implications for conservation of natural channels

Natural Areas Journal
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Abstract

Fish assemblages were systematically sampled along the transition from channelized to unchannelized reaches in seven streams in northern Missouri, USA. Streams ranged in size from 4th to 8th order and were located in the Central Dissected Till Plains including the Grand, Chariton, Salt, and Fabius watersheds. Maximum species richness was reached 3-5 km downstream from the end of channelization. A limited core group of 10 species was present at most of the sites (channelized and unchannelized locations), and a diverse group of 45 species was present at relatively few sites (rarely channelized locations). The core group consisted largely of tolerant, omnivorous species and contained no top carnivores. The 45-species diverse group included a greater proportion of intolerant, benthic invertivorous, lithophilous, and carnivorous species. The effect of channelization extended well into unchannelized reaches and should be considered by conservation planners.

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Publication type Article
Publication Subtype Journal Article
Title Recovery of prairie fish assemblages at the transition from channelized to nonchannelized: Implications for conservation of natural channels
Series title Natural Areas Journal
Volume 23
Issue 4
Year Published 2003
Language English
Publisher Natural Areas Association
Description 7 p.
First page 349
Last page 355
Country United States
State Missouri
County Chariton County, Gentry County, Lewis County, Macon County, Marion County, Shelby County, Sullivan County
Other Geospatial Grand River, Locust Creek, Mussel Fork, North Fabius River, North Fork Salt River, South Fabius River
Online Only (Y/N) N
Additional Online Files (Y/N) N
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