P529 Characterization and manipulation of sex steriods and vitellogenin in freshwater mussels. Kernaghan, Nicola1, Monck, Eileen*,1, Borgert, Christopher1,2, Gross, Timothy1,3, 1 University of Florida, Gainesville, Florida, U.S.A.2 Applied Pharmacology and Toxicology Inc., Alachua, Florida, U.S.A.3 USGS Florida Caribbean Science Center, Gainesville, Florida, U.S.A.

FULL ABSTRACT

P530 Does a chemical exposure change thyroid hormone levels in salmon embryos? Honkanen, Jani*,1, Sorsa, Karoliina1, Penttinen, Olli-Pekka1, Kukkonen, Jussi1, 1 University of Joensuu, Joensuu, Finland

FULL ABSTRACT

P531 Effects Of Multiple Estrogenic Contaminants on Organophosphate-induced Neurotoxicity in Juvenile Chinook Salmon. Amweg, Erin*,1, Weston, Donald1, 1 University of California, Berkeley., Berkeley, CA, US

FULL ABSTRACT

P532 Development and application of tools to characterize endocrine disruptors in complex environmental mixtures. Hewitt, Mark*,1, Parrott, Joanne1, MacLatchy, Deborah2, Pryce, Andrea3, Marlatt, Vicki3, Alsop, Derek3, Wood, Craig4, McMaster, Mark1, Munkittrick, Kelly2, Van Der Kraak, Glen3, 1 National Water Research Institute, Burlington, Ontario, Canada2 University of New Brunswick, Saint John, New Brunswick, Canada3 University of Guelph, Guelph, Ontario, Canada4 Nexfor Technology Centre, Pointe Claire, Quebec, Canada

FULL ABSTRACT

P533 Estrogenic Potency of Effluents from Petrochemical Facilities and a Petroleum Refinery in Ontario. Sherry, Jim*,1, Trepanier, Tanya2, Tinson, Cheryl1, Moran, Tim3, Kierstead, Ted3, Munro, Scott2, 1 National Water Research Institute, Burlington, Ontario2 Sarnia Lambton Environmental Association, Sarnia, Ontario, Canada3 Pollutech EnviroQuatics, Point Edward, Ontario, Canada

FULL ABSTRACT

P535 Effects of Natural and Synthetic Estrogens on Largemouth Bass Hepatic Oxidant Defense Pathways. Hughes, Erin*,1, Gallagher, Evan1, 1 Department of Physiological Sciences, University of Florida, Gainesville, Fl., USA

FULL ABSTRACT

P536 Use of Static Renewal and Flow-through Tests to Assess the Estrogenicity of Effluent from a Thermomechanical Pulp and Paper Mill in Ontario. Sherry, Jim*,1, Tinson, Cheryl1, Parrot, Joanne1, Trowbridge, Dave2, Verma, Subash2, Cuddy, Sharon3, Cooper, Kelly, 1 National Water Research Institute, Burlington, Ontario, Canada2 Sault College, Sault St. Marie, Ontario, Canada3 ULERN, Sault St. Marie, Ontario

FULL ABSTRACT

P537 Identification and Biological Screening of Endocrine Disruptors in Effluents from Missouri Sewage Treatment Plants. Huang, Yue-wern*,1,2, Nam, Paul2, 1 Department of Biological Sciences, University of Missouri - Rolla, Rolla, MO, USA2 Center for Environmental Science and Technology, University of Missouri - Rolla, Rolla, MO, USA

FULL ABSTRACT

P538 Reproductive Toxicity of Androgenic Growth Promoters in the Fathead Minnow. Jensen, Kathleen*,1, Kahl, Michael1, Makynen, Elizabeth1, Hornung, Michael1, Ankley, Gerald1, 1 U.S. Environmental Protection Agency, Duluth, MN, USA

FULL ABSTRACT

P539 Lipovitellin quantification in sediment-dwelling copepods: a potential screening tool for endocrine disrupting chemicals. Volz, David*,1, Cary, Tawnya1, Block, David1, Chandler, G. Thomas1, 1 University of South Carolina, Columbia, SC, USA

FULL ABSTRACT

P540 Vitellogenin Gene Expression in Fathead Minnows Exposed to EE2 in a Whole Lake Dosing Experiment. Lazorchak, James1, Flick, Robert*,1, Kidd, Karen2, Palace, Vince2, Hodge, Trevor2, 1 U.S. EPA, Cincinnati, OH2 Freshwater Institute, Winnipeg, Manitoba, Canada

FULL ABSTRACT

P541 DETAILED REVIEW PAPER FOR FISH REPRODUCTIVE SCREENING ASSAYS. Schultz, Irvin*,1, Skillman, Ann1, Blanton, Michael1, Nagler, James2, 1 Battelle PND, Sequim, WA, USA2 University of Idaho, Moscow, ID, USA

FULL ABSTRACT

P542 Physiological and Biochemical responses of small fish exposed to Athabasca Oil Sands sediment. Tetreault, Gerald*,1,2, McMaster, Mark2, Dixon, Douglas1, Joanne, Parrott2, 1 University of Waterloo, Waterloo, Ontario, Canada2 Environment Canada, Burlington, Ontario, Canada

FULL ABSTRACT

P543 Effects of Paper Mill Effluents and Mill Process Modifications on Reproductive Function of Florida Largemouth Bass. Gross, Timothy*,1,2, Noggle, Jessica2, Quinn, Brian2, Smith, James2, Ruessler, David1, Wiebe, Jon1, Sepulveda, Maria2, Holm, Stewart3, Wieser, Carla1, 1 USGS-BRD Florida Caribbean Science Center, Gainesville, FL2 University of Florida, Gainesville, FL3 Georgia Pacific Corp., Atlanta, GA

FULL ABSTRACT

P544 Effects of paper and pulpmill exposure on the reproductive physiology of bluegill sunfish in Elevenmile Creek, FLA. Burse, Jeanine*,1, 1 Tulane University, Ecology and Evolutionary Biology Department, New Orleans, LA, USA

FULL ABSTRACT

P545 Effects of Atrazine and Chlorothalonil on a sediment dwelling-copepod using a life cycle bioassay . Bejarano, Adriana*,1, Chandler, George1, 1 University of South Carolina, Columbia, SC, USA

FULL ABSTRACT

P546 Contribution of the growth promoter trenbolone to androgenic activity of a feedlot discharge. Makynen, Elizabeth*,1, Durhan, Elizabeth1, Lambright, Christy2, Wilson, Vickie2, Gray, L2, Lazorchak, James3, Smith, Mark4, Weichman, Barry5, Ankley, Gerald1, 1 U.S. EPA Mid-continent Ecology Division, Duluth, Mn, USA2 U.S. EPA Reproductive Toxicology Division, Research Triangle Park, NC, USA3 U.S. EPA Molecular Ecology Research Branch, Cincinnati, OH, USA4 Sobran Inc. c/o U.S.EPA, Cincinnati, OH, USA5 PAI Associates, c/o U.S. EPA, Cincinnati, OH, USA

FULL ABSTRACT

P547 Effect of Benzo[a]pyrene on Ovarian Steroidogenic Enzyme mRNA Synthesis in Zebrafish. Hoffmann, Jennifer*,1, Oris, James1, 1 Miami University, Oxford, OH, USA

FULL ABSTRACT

P548 Adult Exposure to the Phytoestrogen Apigenin Results in Changes in Endocrine Parameters but Fails to Alter Fecundity. Foran, Christy*,1, Peterson, Bethany2, Benson, William3, 1 West Virginia University, Morgantown, WV, USA2 University of Mississippi, University, MS, USA3 U. S. Environmental Protection Agency, Gulf Breeze, FL, USA

FULL ABSTRACT

P549 Retinoic acid induces developmental abnormalities during amphibian metamorphosis. Alsop, Derek*,1, Brown, Scott2, Van Der Kraak, Glen1, 1 University of Guelph, Dept. of Zoology, Guelph, ON, Canada2 Aquatic Ecosystem Protection Research Branch, National Water Research Institute, Burlington, ON, Canada

FULL ABSTRACT

P550 EFFECTS OF DDT ISOMERS ON TESTOSTERONE AND ESTRADIOL PLASMA CONCENTRATIONS IN FEMALE TILAPIA. Leaños-Castañeda, Olga*,1, Van der Kraak, Glen2, Lister, Andrea2, Simá, Raul1, Gold, Gerardo1, 1 Departamento de Recursos del Mar, Cinvestav Unidad Mérida, Mérida, Yucatán, Mexico2 Zoology Department, Guelph University, Guelph, Ontario, Canada

FULL ABSTRACT

P551 o,p-DDT AND ITS METABOLITES ARE DECREASED BY TAMOXIFEN IN MATURE MALE TILAPIA. Leaños-Castañeda, Olga*,1, Van der Kraak, Glen2, del Río-García, Marcela1, Ceja-Moreno, Victor1, Simá, Raul1, Gold, Gerardo1, 1 Departamento de Recursos del Mar, Cinvestav Unidad Mérida, Mérida, Yucatán, Mexico2 Zoology Department, Guelph University, Guelph, Ontario, Canada

FULL ABSTRACT

P552 Detailed Review Paper for fish multi-generation and partial life-cycle reproductive and developmental toxicity tests. Skillman, Ann*,1, Schultz, Irvin1, Nagler, James2, Dionne, Emily3, Blanton, Michael1, 1 Battelle Pacific Northwest National Laboratory, Sequim, WA, USA2 University of Idaho, Moscow, Idaho, USA3 Springborn Labs, Wareham, Massachusetts, USA

FULL ABSTRACT

P553 Induction of Imposex in Rock Shell, Thais clavigera, Exposed to Tributyltin and Other Antagonistic Chemicals. Shim, Won Joon*,1, Shin, Yeong Beom1, Kim, Nam Sook1, Oh, Jae Ryoung1, Jeon, Joong Kyun2, 1 Korea Ocean Research and Development Institute, Ansan, Korea2 Kangnung National University, Kangnung, Korea

FULL ABSTRACT

P554 Reproductive and Immunological Endpoints in Zebra Finches Dosed With 4-Nonylphenol. Birmingham, Erinn*,1,2, Williams, Tony2, Elliott, John3, Ikonomou, Michael4, 1 BBL Sciences, Long Beach, CA, USA2 Simon Fraser University, Burnaby, BC, Canada3 Canadian Wildlife Service, Delta, BC, Canada4 Regional Contaminants Lab, Fisheries and Oceans Canada, Sidney, BC, Canada

FULL ABSTRACT

P555 Influence of 3-Methylcholanthrene Co-exposure on Tributyltin Induced Reproductive Effects and Imposex Development in Ilyanassa obsoleta. McClellan-Green, Patricia*,1,2, 1 North Carolina State University, Department of Environmental and Molecular Toxicology, Raleigh, NC, USA2 Duke University, Division of Coastal Systems Science and Policy, Nicholas School of the Environment and Earth Sciences, Beaufort, NC, USA

FULL ABSTRACT

P556 Assessment of the Scope and Potential Environmental Impacts of Endocrine Disrupting Chemicals in Poultry Litter. Dzantor, E. Kudjo*,1, Yonkos, Lance2, Fisher, Daniel2, Staver, Kenneth2, Pollack, Sara1, Asfaw, Etayenesh1, Ottinger, Mary1, 1 University of Maryland, College Park, MD, USA2 Wye Research and Education Center, Queenstown, MD, USA

FULL ABSTRACT

P557 Antiandrogenic activity of extracts of diesel exhaust particulates. Kizu, Ryoichi*,1, Okamura, Kazumasa1, Toriba, Akira, Klinge, Carolyn2, Burnstein, Kerry3, Hayakawa, Kazuichi1, 1 Kanazawa University, Kanazawa, Japan2 University of Louisville School of Medicine, Louisville, Kentucky, USA3 University of Miami School of Medicine, Miami, Florida, USA

FULL ABSTRACT

P558 An Assessment of the Potential Wildlife Toxicity of Four Urban Pesticides Used in Ontario with Consideration for Endocrine Disruption. Martin, Pamela*,1, Struger, John2, Grabuski, Josey3, 1 Canadian Wildlife Service, Environment Canada, Burlington, ON, Canada2 Ecosystem Health Division, Environment Canada, Burlington, ON, Canada3 NWRI, Environment Canada, Burlington, ON, Canada

FULL ABSTRACT

P559 Endocrine Disruptor Gene and Protein Biomarkers: Differential Expressions in Nonylphenol and Estradiol-17b Treated Trout. Arukwe, Augustine*,1, 1 University of Windsor, Great lakes Institute, Windsor, Ontario, Canada

FULL ABSTRACT

P560 Imposex as an indicator of butyltin exposure in the veined rapa whelk, Rapana venosa. Jestel, Ethan*,1, Unger, Michael1, 1 Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA

FULL ABSTRACT

P561 Influence of endosulfan on testicular enzyme activities in bucks . Bandophadhyay, A.1, Prasad, R.1, Pal, A.*,1,2, Mukherjee, S.1, Jadhao, S.2, 1 Faculty of Veterinary Science & Animal Husbandry, Birsa Agricultural University, Ranchi, India2

FULL ABSTRACT

P562 Adverse effect of 17-estradiol and di-2-ethylhexyl phthalate on the reproduction of juvenile common carp (Cyprinus carpio). Seo, Jinwon*,1, Park, Kyung-Seo2, Moon, Woon-Ki2, Lee, Sung-Kyu1, 1 Ecotoxicology Research Team, Korea Institute of Toxicology, Taejon, Korea2 Fish Ecology Laboratory, Department of Biology, Chungnam National University, Taejon, Korea

FULL ABSTRACT

P563 Temporal and spatial variability in the estrogenicity of a municipal wastewater effluent. Hemming, Jon*,1, Allen, H.2, Turner, Philip2, Waller, W.2, Lazorchak, James3, Lattier, David3, Chow, Marjorie4, Denslow, Nancy4, Venables, Barney5, 1 U.S. Fish and Wildlife Service, Panama City Field Office, Panama City, FL, US2 Institute of Applied Science, University of North Texas, Denton, TX, US3 U.S. Environmental Protection Agency, Cincinnati, OH, US4 University of Florida Biomarkers/Protein Chemistry Core Facility, Gainesville, FL, US5 TRAC Laboratories, Inc., Denton, TX, US

FULL ABSTRACT

P564 Effects of 17-estradiol,atrazine,and nonylphenol on the sex ratios of the Atlantic silverside, Menidia menida. Champlin, Denise*,1, Nacci, Diane1, Serbst, Jonathan1, Jayaraman, Saro1, Pelletier, Marguerite1, Chandlee, Mary2, Specker, Jennifer2, 1 US Environmental Protection Agency, Atlantic Ecology Division, Narragansett, RI, US2 University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, US

FULL ABSTRACT

P565 Chick oviduct estrogen bioassay predicts adult reproductive performance of songbirds. Millam, James*,1, Craig-Veit, Christina1, 1 University of California, Davis, CA, USA

FULL ABSTRACT

P566 Histological Changes in Gonadal Development in Chickens Exposed to 17B-Estradiol. Grasman, Keith1, Reaves, M. Elissa*,1, 1 Wright State University, Dayton, OH, USA

FULL ABSTRACT

P567 Specific distribution of organotin compounds and endocrine disruption in gastropods observed in the inshore ecosystem. Horiguchi, Toshihiro*,1, Matsuo, Taiki2, Cho, Hyeon-Seo3, Kaya, Miyuki1, Shiraishi, Hiroaki1, Morita, Masatoshi1, Adachi, Yoshikazu2, 1 National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan2 Ibaraki University, Inashiki, Ibaraki, Japan3 Yosu National University, Yosu, Chonnam, Korea

FULL ABSTRACT

P568 Altered Testis Development in Chicken Embryos (Gallus domesticus) Exposed to Aroclor 1254. Grasman, Keith1, Reaves, M. Elissa*,1, 1 Wright State University, Dayton, OH, USA

FULL ABSTRACT

P569 Development of methods to estimate E2 antagonist in vivo using Medaka. Koshio, Masaaki*,1, Tatarazako, Norihisa1, Kawabe, Kiyoshi1, Shiraishi, Fujio1, Morita, Masatoshi1, 1 National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan

FULL ABSTRACT

P570 Insecticides for juvenile hormone agonists exert the influence on the occurrence of the male daphnid. Tatarazako, Norihisa*,1,3, Koshio, Masaaki1, Kawabe, Kiyoshi1, Morita, Masatoshi1, Watanabe, Hajime2,3, Iguchi, Taisen2,3, 1 National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan3 CREST, JST (Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation), Shibuya, Tokyo, Japan2 Center for Integrative Biology, Okazaki National Research Institutes, Okazaki, Aichi, Japan

FULL ABSTRACT

P571 Nonylphenol in livers of herring gull chicks from the Great Lakes and Bay of Fundy . Grasman, Keith*,1, Fox, Glen2, Bennie, Donald3, 1 Wright State University, Dayton, OH, USA2 Canadian Wildlife Service, Hull, PQ, Canada3 Environment Canada, Burlington, ON, Canada

FULL ABSTRACT

P572 Mechanism of action of -sitosterol: impairment of cholesterol transfer across gonadal mitochondrial membranes. MacLatchy, Deborah*,1, Leusch, Frederic1, Gilman, Christine1, 1 Canadian Rivers Institute, University of New Brunswick, Saint John, New Brunswick, Canada

FULL ABSTRACT

P573 Expression profiling of largemouth bass (Micropterus salmoides) exposed to estradiol, nonylphenol, and p, p'-DDE. Larkin, Patrick*,1, Sabo-Attwood, Tara2, Kelso, Jamie1, Denslow, Nancy1, 1 Department of Biochemistry and Molecular Biology and Center for Biotechnology, University of Florida, Gainesville, Florida, USA2 Graduate Program in Pharmacology and Therapeutics, University of Florida, Gainesville, Florida, USA

FULL ABSTRACT

P574 Contribution of Ammonium Ions to the Lethality and Antimetamorphic Effects of Ammonium Perchlorate. Goleman, Wanda*,1, Carr, James1, 1 Texas Tech University, Lubbock, TX, USA

FULL ABSTRACT

P575 The use of Hybridisation Protection Assays(HPA) for detecting endocrine disruption in fish on a standard 96hr effluent monitoring study. HANDLEY, JOHN*,1, SEWELL, IAN1, HARRISON, NICOLA2, MORRIS, CERI2, 1 SAFEPHARM LABORATORIES, DERBY, UK2 MOLECULAR LIGHT TECHNOLOGY RESEARCH LTD, CARDIFF, UK

FULL ABSTRACT

P577 Differential Display of Trenbolone and DEHP Induced Gene Transcript Patterns in Fathead Minnow Liver. Reddy, Tirumuru*,1, Miracle, Ann1, Flick, Robert1, Lazorchak, James1, Smith, Mark2, Lattier, David1, Toth, Gregory1, 1 U.S. EPA, Ecological Exposure Research Division, MERB, Cincinnati, OH, USA2 SoBran, Environmental Inc. c/o U.S. EPA/EERD, Cincinnati, OH, USA

FULL ABSTRACT

P578 Individual Effects of Three Steroidal Estrogens on a Fish Extrapolated to the Population Level. Gutjahr-Gobell, Ruth*,1, Gleason, Timothy1, Zaroogian, Gerald1, Borsay Horowitz, Doranne1, Mills, Lesley1, 1 U.S. EPA, ORD, NHEERL, Atlantic Ecology Division, Narragansett, RI, USA

FULL ABSTRACT

P579 Effects of Phytosterols on the Post Metamorphic Xenopus laevis. Koponen, Petri*,1, Nieminen, Petteri1, Anne-Mari, Mustonen1, Kukkonen, Jussi1, 1 University of Joensuu, Joensuu, Finland

FULL ABSTRACT

P580 Screening for androgen and glucorticoid receptor (ant)agonists using MDA-kb2 cells. Murphy, Margaret*,1,2,3, Villeneuve, Daniel2,3, Lam, W2, Jones, Paul2,3, Giesy, John1,2,3, 1 Zoology Department, Michigan State University, East Lansing, MI, USA2 National Food Safety and Toxicology Center, Michigan State University, East Lansing, MI, USA3 Institute for Environmental Toxicology, Michigan State University, East Lansing`, MI, USA

FULL ABSTRACT

P581 A Yeast Assay for Monitoring Estrogen Mimics. Passos, Ana*,1, Moura, Natalia1, Cavaco, Jose1, Power, Deborah1, Canario, Adelino1, 1 Universidade do Algarve, Faro, Portugal

FULL ABSTRACT

P582 Laboratory exposure of adult male and female goldfish (Carassius auratus) to sodium perchlorate: investigation of potential impacts on reproductive and thyroid system function. Crouch, Neil*,1, Snyder, Shane2, Van Der Kraak, Glen3, Kelly, Kevin4, Fitzgerald, Scott5, Snyder, Erin1, 1 Pennsylvania Cooperative Fish and Wildlife Research Unit, U.S.G.S. Biological Resources Division, University Park, PA, USA2 Southern Nevada Water Authority, Boulder City, NV, USA3 University of Guelph, Guelph, Ontario, Canada4 U.S. Bureau of Reclamation, Denver, CO, USA5 Michigan State University, East Lansing, MI, USA

FULL ABSTRACT

P583 Alkylphenols, estrogenicity and androgenicity in the Miramichi River, New Brunswick. Bennie, Donald*,1, Burnison, B. Kent1, Sullivan, Cheryl1, Fairchild, Wayne2, Brown, Scott1, 1 National Water Research Institute, Environment Canada, Burlington, ON, Canada2 Gulf Fisheries Centre, Fisheries and Oceans Canada, Moncton, NB, Canada

FULL ABSTRACT

P584 Particle-water partitioning of alkylphenol polyethoxylates and their degradation products in the St. Lawrence River near Montreal. SABIK, HASSAN1, GAGNON, CHRISTIAN*,1, HOUDE, FRANÇOIS2, DEBLOIS, CHRISTIAN2, 1 ENVIRONMENT CANADA, ST. LAWRENCE CENTRE, MONTREAL, QUEBEC, CANADA2 CENTRE D'EXPERTISE EN ANALYSE ENVIRONNEMENTALE DU QUÉBEC, SAINTE-FOY, QUEBEC, CANADA

FULL ABSTRACT