Science and Mathematics Faculty Publications
Document Type
Research Report
Publication Date
8-16-2013
Abstract
In 2007 Keystone Pond, a reservoir behind the Boardman dam, Boardman River, Grand Traverse County, Michigan, USA was drawn down in preparation for dam removal. The objective of this study was to quantify the effects of drawdown on benthic macroinvertebrate riffle communities by comparing a downstream site in a newly formed channel to an upstream control. Since 2008 a total of 2338 macroinvertebrates have been sampled and identified to the lowest practical taxonomic level. Data were analyzed using Chi-Square goodness of fit tests, Simpson's Index of diversity, and Sørensens' Quotient of Similarity. We found that macroinvertebrate communities in the new channel have recovered to a more natural condition and show increasing similarity to the upstream control site.
Keywords
Macroinvertebrate communities, reservoirs
Recommended Citation
Hayes, Christian and Mahan, David, "Effects of Reservoir Drawdown on Riffle Macroinvertebrate Communities" (2013). Science and Mathematics Faculty Publications. 327.
https://digitalcommons.cedarville.edu/science_and_mathematics_publications/327
Comments
Prepared fro the Au Sable Institute of Environmental Studies, Mancelona, MI