Translator Disclaimer
1 January 2010 Variation in Fish and Macroinvertebrate Assemblages Among Seasonal and Perennial Headwater Streams
Jayson Beugly, Mark Pyron
Author Affiliations +
Abstract

Stream channelization results in modifications to the natural meandering of stream channels. Channelized streams experience higher rates of drying in late summer and early fall because of efficient water movement and higher water temperatures. Approximately 70% of east-central Indiana landuse is rowcrop agriculture with widespread stream channelization. We sampled fishes and invertebrates at 14 sites in seven headwater streams in the Buck Creek watershed. We defined streams that dry in late summer and early fall as seasonal, and those that maintain flow throughout the year as perennial streams. Our predictions were that alterations to the natural channel structure, which change the seasonal drying patterns of the streams, would also cause changes in fish and invertebrate assemblages. Detrended Correspondence Analyses (DCA) of fish and invertebrate assemblages produced significant correlations for resulting axes with habitat and water quality variables. No significant differences in fish and invertebrate assemblages were found in our comparisons of seasonal vs. perennial streams.

Jayson Beugly and Mark Pyron "Variation in Fish and Macroinvertebrate Assemblages Among Seasonal and Perennial Headwater Streams," The American Midland Naturalist 163(1), 2-13, (1 January 2010). https://doi.org/10.1674/0003-0031-163.1.2
Received: 19 September 2008; Accepted: 1 April 2009; Published: 1 January 2010
JOURNAL ARTICLE
12 PAGES


Share
SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top