2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/08/2017 | 10:00 AM - 10:15 AM | BIOLOGICAL RESPONSE TO STREAM RESTORATION ON TENMILE CREEK | 302A
BIOLOGICAL RESPONSE TO STREAM RESTORATION ON TENMILE CREEK
Biological Response to Stream Restoration on Tenmile Creek
David J. Parise, Tim Nuttle, Marisa N. Logan, Mark R. Haibach, Nathan S. Ober
We counter three criticisms of stream restoration: lack of clear performance objectives, lack of biological improvement, and long recovery times. Using a case study of two stream restoration projects where permits specified biological performance criteria, we show that biological recovery can be observed within a relatively short time period. The projects were located along Tenmile Creek in southwestern Pennsylvania and employed natural channel design to correct channel instability caused by agricultural activity and changes to stream grade caused by post-mining subsidence. Federal and state permits required specific macroinvertebrate biological index values be met within five years at each site. Additional data on instream habitats and fish communities were also collected. Macroinvertebrate index and taxa richness improved following restoration by 8 to 17 points and from two to five taxa. Size and composition of fish communities remained similar between pre-mining and post-restoration; however, dominance shifted to less pollution-tolerant species. Because the restoration measures addressed the sources of degradation, permit-specified performance objectives were met within three years of restoration.
- C16 Restoration Ecology
- C03 Invertebrates
- C16 Restoration Ecology
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Presenters/Authors
David Parise
(), Civil & Environmental Consultants, Inc., dparise@cecinc.com;
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