2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/25/2021 | 8:30 AM - 10:30 AM | USING A BACI DESIGN TO ASSESS THE EFFECTS OF A NATURAL GAS PIPELINE INSTALLTION THROUGH MILL CREEK, VA: REPORTING ON THE PRE-INSTALLATION STREAM STRUCTURE | Virtual Platform
USING A BACI DESIGN TO ASSESS THE EFFECTS OF A NATURAL GAS PIPELINE INSTALLTION THROUGH MILL CREEK, VA: REPORTING ON THE PRE-INSTALLATION STREAM STRUCTURE
A natural gas pipeline is planned to cross several streams in Southwest Virginia. The installation process modifies the stream riparian area, channel, chemistry, and macroinvertebrate assemblage. We designed a before-after-control-impact (BACI) study to determine the effects of the installation process in the Mill Creek watershed. In March and August 2019 and 2020, we conducted a systematic physical habitat assessment and collected macroinvertebrates in 4 control and 6 impact sites, pre-installation. We measured microclimate and water chemistry (i.e., basic chemistry, metals, anions, and cations). A principle components analysis was used to explore how our sites are abiotically structured. A nonmetric multidimensional scaling (NMDS) explored potential differences in the macroinvertebrate assemblage structure. The Spring microclimate varies widely among our sites, unlike in the Summer. The physical habitat in our small and large streams differ, but the physical habitat does not change across seasons. The water chemistry differs between the spring and summer seasons, especially among the larger sites. The macroinvertebrate assemblage between the small and large sites are distinct. Pipeline completion is expected in late 2021; our BACI design allows us to effectively capture any structural changes produced by the installation process.
- Anthropogenic
- Habitat
- Monitoring
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Presenters/Authors
Donya Mohamed
(), Radford University, dmohamed1@radford.edu;
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Kristina Stefaniak
(), Radford University, kroth1@radford.edu;
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Tara Pelletier
(), Radford University, tpelletier@radford.edu;
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Jamie Lau
(), Radford University, jlau@radford.edu;
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