caa a22 4500 467904197 CHVBK 20180406152828.0 cr unu---uuuuu 170328e20061001xx s 000 0 eng 10.1007/s10661-005-9153-x doi (NATIONALLICENCE)springer-10.1007/s10661-005-9153-x Contaminant Exposure of Barn Swallows Nesting on Bayou D'Inde, Calcasieu Estuary, Louisiana, USA [Elektronische Daten] [Thomas Custer, Christine Custer, Buddy Goatcher, Mark Melancon, Cole Matson, John Bickham] Current and historical point source discharges, storm water runoff, and accidental spills have contaminated the water, sediment, and biota within the Calcasieu Estuary in southwestern Louisiana. In 2003, barn swallow (Hirundo rustica) eggs and nestlings were collected beneath two bridges that cross Bayou d′Inde, the most contaminated waterway within the Calcasieu Estuary. Samples were also collected from a bridge over Bayou Teche, a reference site in south central Louisiana. Polychlorinated biphenyl (PCB) concentrations in barn swallow eggs and nestlings were significantly higher at the downstream site on Bayou d′Inde (2.8 μ g/g PCBs in eggs and 1.5 μ g/g PCBs in nestlings) than at the other two sites (< 0.2 μ g/g PCBs in eggs and nestlings at both sites). Ethoxyresorufin-O-dealkylase activity in nestling livers was significantly higher at the downstream site on Bayou d′Inde (50 pmol/min/mg) compared to the other two locations (24 pmol/min/mg, each), probably because of exposure to PCBs. Polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran concentrations in eggs and polycyclic aromatic hydrocarbons in nestlings were at background concentrations at all sites. Trace element concentrations in barn swallow eggs and nestling livers were at background levels and did not differ among the three sites. A biomarker of DNA damage did not differ among sites. Springer Science+Business Media, Inc., 2006 barn swallows nationallicence EROD activity nationallicence metals nationallicence PCBs nationallicence polycyclic aromatic hydrocarbons nationallicence Custer Thomas U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, 54603, La Crosse, WI, USA aut Custer Christine U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, 54603, La Crosse, WI, USA aut Goatcher Buddy U.S. Fish and Wildlife Service, 646 Cajundome Blvd. Suite 400, 70506, Lafayette, LA, USA aut Melancon Mark U.S. Geological Survey, Patuxent Wildlife Research Center, 10300 Baltimore Avenue, 20705, Beltsville, MD, USA aut Matson Cole Department of Wildlife and Fisheries, Texas A&M University, 77843-2258, College Station, TX, USA aut Bickham John Department of Wildlife and Fisheries, Texas A&M University, 77843-2258, College Station, TX, USA aut Environmental Monitoring and Assessment Springer Netherlands 121/1-3(2006-10-01), 543-560 0167-6369 121:1-3<543 2006 121 10661 https://doi.org/10.1007/s10661-005-9153-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-005-9153-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Custer Thomas U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, 54603, La Crosse, WI, USA aut NATIONALLICENCE 700 1- Custer Christine U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, 54603, La Crosse, WI, USA aut NATIONALLICENCE 700 1- Goatcher Buddy U.S. Fish and Wildlife Service, 646 Cajundome Blvd. Suite 400, 70506, Lafayette, LA, USA aut NATIONALLICENCE 700 1- Melancon Mark U.S. Geological Survey, Patuxent Wildlife Research Center, 10300 Baltimore Avenue, 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- Matson Cole Department of Wildlife and Fisheries, Texas A&M University, 77843-2258, College Station, TX, USA aut NATIONALLICENCE 700 1- Bickham John Department of Wildlife and Fisheries, Texas A&M University, 77843-2258, College Station, TX, USA aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Springer Netherlands 121/1-3(2006-10-01), 543-560 0167-6369 121:1-3<543 2006 121 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer