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• 2012429923 abstract "The goal of this study was to assess the effects of road runoff on freshwater mussels in North Carolina streams. We conducted our studies at 20 road crossings in the upper Neuse River Basin above Falls Lake as the study area. Using GIS, we selected 9 agricultural sites and 10 forested sites based on EPA landuse data. A 20th site was selected because of its urban nature and ongoing construction at the site. We surveyed mussels in the 300-meter reaches upstream and downstream of each of these crossings. We used the analysis of hemolymph obtained from the common mussel species Elliptio complanata as a non-lethal health assessment technique for studying the health of individual mussels upstream and downstream of these road crossings. Hemolymph analysis was also used to compare agricultural and forested sites. This project was the first field test of this hemolymph technique, and the forested sites were used to develop reference ranges for the various parameters evaluated in E. complanata hemolymph. Other health assessments included glycogen analysis, evaluation of the percent of gravid mussels at a site, and presence of parasites. Contaminants were measured in mussel tissue, sediment, and in Passive Sampling Devices (PSDs) deployed at each site. There tended to be fewer mussels in the first 50 meters downstream of the road crossings; however, there were no differences when the entire 300-meter upstream and downstream reaches were considered. There was no difference in health parameters measured by hemolymph analysis between upstream and downstream mussels. Hemolymph glucose and calcium were significantly different between agricultural and forested sites. Hemolymph reference ranges are presented in this report. Contaminant analyses showed an increase in polycyclic aromatic hydrocarbons (PAHs), and some metals downstream of all road crossings at some sites. This appeared to be directly related to the number of vehicles crossing the bridges. There was, however, no direct correlation between increasing contaminant loads and decreasing mussel abundance. There were no noteworthy differences in contaminant loads between land use types. Passive sampling devices proved to be excellent surrogates for the direct measurement of PAHs in mussel tissue.".
• 2012429923 alternative "Assessment of the impact of highway runoff on freshwater mussels in North Carolina streams".
• 2012429923 contributor B12599425.
• 2012429923 contributor B12599426.
• 2012429923 created "2005.".
• 2012429923 date "2005".
• 2012429923 date "2005.".
• 2012429923 dateCopyrighted "2005.".
• 2012429923 description "Ch. 1. Study Area -- Ch. 2. Mussel Surveys -- Ch. 3. Development and use of mussel health assessment technique -- Ch. 4. Contaminant Assessment.".
• 2012429923 description "Includes bibliographical references (p. 73-79).".
• 2012429923 description "The goal of this study was to assess the effects of road runoff on freshwater mussels in North Carolina streams. We conducted our studies at 20 road crossings in the upper Neuse River Basin above Falls Lake as the study area. Using GIS, we selected 9 agricultural sites and 10 forested sites based on EPA landuse data. A 20th site was selected because of its urban nature and ongoing construction at the site. We surveyed mussels in the 300-meter reaches upstream and downstream of each of these crossings. We used the analysis of hemolymph obtained from the common mussel species Elliptio complanata as a non-lethal health assessment technique for studying the health of individual mussels upstream and downstream of these road crossings. Hemolymph analysis was also used to compare agricultural and forested sites. This project was the first field test of this hemolymph technique, and the forested sites were used to develop reference ranges for the various parameters evaluated in E. complanata hemolymph. Other health assessments included glycogen analysis, evaluation of the percent of gravid mussels at a site, and presence of parasites. Contaminants were measured in mussel tissue, sediment, and in Passive Sampling Devices (PSDs) deployed at each site. There tended to be fewer mussels in the first 50 meters downstream of the road crossings; however, there were no differences when the entire 300-meter upstream and downstream reaches were considered. There was no difference in health parameters measured by hemolymph analysis between upstream and downstream mussels. Hemolymph glucose and calcium were significantly different between agricultural and forested sites. Hemolymph reference ranges are presented in this report. Contaminant analyses showed an increase in polycyclic aromatic hydrocarbons (PAHs), and some metals downstream of all road crossings at some sites. This appeared to be directly related to the number of vehicles crossing the bridges. There was, however, no direct correlation between increasing contaminant loads and decreasing mussel abundance. There were no noteworthy differences in contaminant loads between land use types. Passive sampling devices proved to be excellent surrogates for the direct measurement of PAHs in mussel tissue.".
• 2012429923 description "This project was supported by a grant from the U.S. Dept. of Transportation and the North Carolina Dept. of Transportation, through the Center for Transportation and the Environment, NC State University.".
• 2012429923 extent "110 p. :".
• 2012429923 hasFormat "Also available via the World Wide Web in PDF.".
• 2012429923 identifier viewonline.
• 2012429923 identifier Final_Report_2001-13.pdf.
• 2012429923 identifier Final_Report_2001-13.pdf.
• 2012429923 isFormatOf "Also available via the World Wide Web in PDF.".
• 2012429923 issued "2005".
• 2012429923 issued "2005.".
• 2012429923 language "eng".
• 2012429923 publisher "Raleigh, N.C. : CTE/NCDOT Joint Environmental Research Program,".
• 2012429923 relation "Also available via the World Wide Web in PDF.".
• 2012429923 spatial "North Carolina.".
• 2012429923 subject "594/.4 23".
• 2012429923 subject "Freshwater mussels Effect of water pollution on North Carolina.".
• 2012429923 subject "GB991.N8 F55 2005 2005".
• 2012429923 subject "Road drainage Environmental aspects North Carolina.".
• 2012429923 subject "Runoff Environmental aspects North Carolina.".
• 2012429923 tableOfContents "Ch. 1. Study Area -- Ch. 2. Mussel Surveys -- Ch. 3. Development and use of mussel health assessment technique -- Ch. 4. Contaminant Assessment.".
• 2012429923 title "Assessment of the impact of highway runoff on freshwater mussels in North Carolina streams".
• 2012429923 title "Final report : assessment of the impact of highway runoff on freshwater mussels in North Carolina streams / prepared by J.F. Levine ... [et al.].".
• 2012429923 type "text".