Program for Session 17e

Monday 15th August AM: Floor 2 / Forum Hall

17e (Oral): Nitrogen isotopes and nitrogen cycling in terrestrial and aquatic systems
Session chaired by Carsten Schubert & Moritz Lehmann

09:30  Keynote: Cycling of Nitrogen in the Namibian Coastal Upwelling System – The Stable Isotope View
Emeis K-C, Nagel B & Lahajnar N
10:00  Novel Denitrifier Method for Measuring 15N and 18O of Nitrate
Silvennoinen H, Zhu J, Mørkved PT, Bakken L, Mulder J & Dörsch P
10:15  Stable Isotopes Ratio in Nitrate: A Tool to Unravel the Biogeochemistry of Nitrate in an Estuarine Environment
Wong WW, Cook P, Grace M & Cartwright I
10:30  Tracing N2O Transformation Pathways in a Lake Ecosystem by N2O Isotopomer Analysis
Wenk CB, Blees HJR, Koba K, Casciotti KL, Schubert CJ, Veronesi M, Freymond CV, Niemann H, Zopfi J & Lehmann MF
10:45  Tracing Anthropogenic Nitrogen in the Vicinity of Industrial Emitters in the Athabasca Oilsands Region, Alberta, Canada
Proemse B, Mayer B & Fenn M
11:00  Linking Nitrogen Isotope Systematics and Microbiology in a Subsurface Geothermal Water Stream, Hishikari Gold Mine, Japan
Nishizawa M, Koba K, Makabe A, Yoshida N, Hirai M, Miyazaki J, Nunoura T & Takai K
11:15  Nitrogen Limitation in Extremophilic Hydrothermal Ecosystems of Yellowstone National Park
Romaniello S, Hartnett H, Anbar A, Elser J & Shock E
11:30  Extensive Denitrification in the Subsurface of the Oak Ridge Site, Tennessee
Horita J, Conrad M, Yoshida N, Bill M, Kostka J, Watson D, Brooks S & Jardine P
11:45  Extensive N-Loss from Permeable Wadden Sea Sediments due to Aerobic Denitrification
Gao H, Khalili A, Lavik G, de Beer D & Kuypers M
12:00  Role of Fluid Flow Conditions on Denitrification Rates in Sediments during Managed Groundwater Recharge
Schmidt C, Fisher A, Racz A, Lockwood B & Los Huertos M
12:15  Looking for PON in Fluviatile and Marine Sediments: Insights from Nitrogen Isotopic Compositions
Galy A, Hilton R, Hovius N, Smith J & Sparkes R

Monday 15th August PM: Floor 2 / Forum Hall

17e (Oral): Nitrogen isotopes and nitrogen cycling in terrestrial and aquatic systems
Session chaired by Carsten Schubert & Moritz Lehmann

14:00  Variability of Nitrogen Stable Isotope in Suspended Organic Matter in Waters of the Western Continental Shelf of India and the Mandovi Estuary
Maya MV, Karapurkar SG, Soares MA, Agnihotri R, Roy R, Naik H & Naqvi SWA
14:15  Amino Sugar and Amino Acid Degradation and Transformation in Two Lakes with Different Redox State
Carstens D, Köllner KE, Bürgmann H & Schubert CJ
14:30  Organic Nitrogen Cycling during Organic Matter Decomposition
Mooshammer M, Wanek W, Frank AH, Hofhansl F, Keiblinger KM, Zechmeister-Boltenstern S & Richter A

Monday 15th August PM: Floor 3 / Poster Area

17e (Poster): Nitrogen isotopes and nitrogen cycling in terrestrial and aquatic systems

3058  Alteration of Nitrogen Isotopic Signatures during Phytoplankton Degradation
Deek A, Lehmann MF & Schubert CJ
3059  Stable Isotope Approach for Feeding Structure of Mudskipper Periophthalmus argentilineatus at Different Habitats in Okinawa Islands, Japan
Kawamura R, Fujimura H, Uemura R, Higuchi T, Casareto BE & Suzuki Y
3060  Monitoring Emissions from the Athabasca Oil Sands Using Stable Isotopes from Black Spruce (Picea mariana)
Mosher H & Wolfe A
3061  Sources and Cycling of Nitrogen in the Gulf of Trieste (N. Adriatic Sea)
Tamše S, Mozetič P & Ogrinc N
3062  Lessons to Learn from Amino Acid Distribution in POM of Lake Baikal
Schubert C, Niggemann J, Sturm M, Lomstein B & McCarthy M
3063  The Temporal and Spatial Variations of N2O Saturations in a Eutrophic Lake
Wang S
3064  Uncoupled Enrichment of 15N and 18O in Nitrate – Constraints on Nitrate Regeneration in Various Aquatic Environments
Lehmann MF, Wenk CB & Bourbonnais A