caa a22 4500 467902011 CHVBK 20180406152821.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1007/s10661-005-9174-5 doi (NATIONALLICENCE)springer-10.1007/s10661-005-9174-5 The Ecotoxicological Recovery of Ely Creek and Tributaries (Lee County, Va) After Remediation of Acid Mine Drainage [Elektronische Daten] [Matthew Simon, Donald Cherry, Rebecca Currie, Carl Zipper] The Ely Creek watershed (Lee County, VA) was determined in 1995 to be the most negatively affected by acid mine drainage (AMD) within the Virginia coalfield. This determination led the US Army Corps of Engineers to design and build passive wetland remediation systems at two major AMD seeps affecting Ely Creek. This study was undertaken to determine if ecological recovery had occurred in Ely Creek. The results indicate that remediation had a positive effect on all monitoring sites downstream of the remediated AMD seeps. At the site most impacted by AMD, mean pH was 2.93 prior to remediation and improved to 7.14 in 2004. Benthic macroinvertebrate surveys revealed that one AMD influenced site had increased taxa richness from zero taxa in 1997 to 24 in 2004. While in situ testing of Asian clams resulted in zero survival at five of seven AMD influenced sites prior to remediation, some clams survived at all sites after. Clam survival was found to be significantly less than upstream references at only two sites, both downstream of un-mitigated AMD seeps in 2004. An ecotoxicological rating (ETR) system that combined ten biotic and abiotic parameters was developed as an indicator of the ecological status for each study site. A comparison of ETRs from before and after remediation demonstrated that all sites downstream of the remediation had experienced some level of recovery. Although the remediation has improved the ecological health of Ely Creek, un-mitigated AMD discharges are still negatively impacting the watershed. Springer Science + Business Media, Inc., 2006 abandoned mine lands nationallicence acid mine drainage nationallicence bioassessment nationallicence constructed wetlands nationallicence remediation nationallicence water quality nationallicence Simon Matthew Department of Biologicaal Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut Cherry Donald Department of Biologicaal Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut Currie Rebecca Department of Biology, Roanoke College, Salem, Virginia, USA aut Zipper Carl Department of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut Environmental Monitoring and Assessment Kluwer Academic Publishers 123/1-3(2006-12-01), 109-124 0167-6369 123:1-3<109 2006 123 10661 https://doi.org/10.1007/s10661-005-9174-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-005-9174-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Simon Matthew Department of Biologicaal Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut NATIONALLICENCE 700 1- Cherry Donald Department of Biologicaal Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut NATIONALLICENCE 700 1- Currie Rebecca Department of Biology, Roanoke College, Salem, Virginia, USA aut NATIONALLICENCE 700 1- Zipper Carl Department of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University, Virginia, USA aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 123/1-3(2006-12-01), 109-124 0167-6369 123:1-3<109 2006 123 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 467902011 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer