8:00 AM Predick, Katharine^*,1, Turner, Monica¹, ¹ University of Wisconsin-Madison, Madison, WI, U.S.A. Influence of flooding on the spatial patterns of carbon content in fine sediment on the Wisconsin River floodplains and uplands.

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8:20 AM Houser, Jeffrey^*,1, Rogala, James ¹, Gray, Brian¹, Fischer, James¹, Johnson, Barry, ¹ U.S. Geological Survey, La Crosse, WI, USA Using long-term monitoring data to understand spatial and temporal variability in the Upper Mississippi River System.

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8:40 AM Vaughan, Annie^*,1, Acholonu, Alex¹, ¹ Alcorn State University, Alcorn State, MS Studies on water quality of the Big Black River in Mississippi (Pollution Studies).

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9:00 AM Orr, Cailin^*,1, Stanley, Emily¹, Wilson, Karen², Finlay, Jacques³, ¹ Center for Limnology, Madison, WI, USA² University of Toronto, Toronto, ON, Canada³ University of Minnesota, St. Paul, MN, USA Changes in denitrification following reintroduction of flooding to a leveed Midwestern floodplain.

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9:20 AM Meier, O.^*,1, Grubbs, S.¹, Meier, A.¹, Anmala, J.¹, ¹ Western Kentucky University, Bowling Green, KY, USA Analysis of landuse, climate, stream buffers, and water quality in the upper Green River Basin of Kentucky.

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9:40 AM Break.

9:50 AM Hall, Robert^*,1, Baker, Michelle², Arp, Christopher², Koch, Benjamin¹, ¹ University of Wyoming, Laramie, WY, USA² Utah State University, Logan, WY, USA Missing nitrate in streams: Hydrological and biological sinks in a mountain stream.

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10:10 AM Thomas, Steven^*,1, Valett, Maurice², ¹ Department of Ecology and Evolutionary Biology, Ithaca, NY, USA² Department of Biology, Blacksburg, VA, USA Towards linking nitrogen and phosphorus cycling in stream ecosystems.

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10:30 AM Gurwick, Noel^*,1, Groffman, Peter², Stolt, Mark³, Gold, Arthur³, McCorkle, Daniel⁴, Kellogg, D.³, ¹ Program in Biogeochemistry, Ithaca, NY, USA² Institute of Ecosystem Studies, Millbrook, NY, USA³ University of Rhode Island, Kingston, RI, USA⁴ Woods Hole Oceanographic Institution, Woods Hole, MA, USA What carbon sources support groundwater microbial activity in riparian forests?

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10:50 AM Whitmire, Stefanie ^*,1, Dress, William ¹, Walbridge, Mark¹, ¹ West Virginia University, Morgantown, WV Nutrient transformations in forested floodplains during overbank flooding: Do they exist?

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11:10 AM Harner, Mary^*,1, Tibbets, Teresa¹, ¹ The University of New Mexico, Albuquerque, NM, USA Stoichiometry of Rio Grande cottonwoods in response to natural and anthropogenic nutrient addition.

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