Abstract/Details

A Post-Restoration Assessment of the Fishes and Macroinvertebrates of Mill Branch, Knox County, Kentucky, with Emphasis on the Blackside Dace (<i>Chrosomus cumberlandensis</i>)


2011 2011

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Abstract (summary)

The first stream habitat restoration project for the federally threatened blackside dace, Chrosomus cumberlandensis (Starnes and Starnes), was initiated in fall 2005 on Mill Branch, a small headwater stream located in the Upper Cumberland River basin, Knox County, Kentucky. The lower 700 meters of Mill Branch were restored through construction of a new, stable channel with specially designed habitat features for blackside dace. In August 2009, the newly restored channel was connected to the mainstem and the old channel was eliminated. A post-restoration survey was conducted on the fishes (with emphasis on the blackside dace) and benthic macroinvertebrate communities, between August 2009 and June 2010, to determine if the restoration effort resulted in biological improvement. It appeared the new channel was gradually becoming more stable in terms of water quality and habitat. The overall fish community showed no improvement for most sections in the new channel. However, the blackside dace population has increased considerably from the first sampling event in 2006 prior to construction. Blackside dace have begun to utilize areas below the new culvert. Two individuals were found over 300 meters downstream of the new culvert. Baseline data for the macroinvertebrate community showed fair water quality conditions within the new channel for all sites sampled in March 2010. Long-term monitoring of Mill Branch should be continued to assess the long-term success of the stream restoration, to evaluate the overall stream ecosystem structure and function of Mill Branch, and to assist in our efforts to successfully enhance other degraded streams.

Indexing (details)


Subject
Ecology;
Conservation
Classification
0329: Ecology
0408: Conservation
Identifier / keyword
Biological sciences; Blackside dace; Chrosomus cumberlandensis; Fish; Kentucky; Macroinvertebrates; Stream restoration
Title
A Post-Restoration Assessment of the Fishes and Macroinvertebrates of Mill Branch, Knox County, Kentucky, with Emphasis on the Blackside Dace (<i>Chrosomus cumberlandensis</i>)
Author
Merrill, Dwayne Kevin
Number of pages
92
Publication year
2011
Degree date
2011
School code
1576
Source
MAI 50/01M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781124811253
Advisor
Harrel, Sherry L.
Committee member
Braccia, Amy; Floyd, Michael A.
University/institution
Eastern Kentucky University
Department
Department of Biological Sciences
University location
United States -- Kentucky
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1497464
ProQuest document ID
886450211
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/886450211
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