BN34C:
Understanding Controls on Marine Nitrogen Cycling: From Microbes to the Global Ocean II Posters


Session ID#: 27830

Session Description:
Marine nitrogen (N) exerts an important control on marine productivity affecting climate relevant gases such as CO2 and N2O. Understanding the controls of the rates and distribution of N-cycling processes (inventory-altering and internal-cycling N processes, such as atmospheric deposition, N2 fixation, denitrification, nitrification, and N2O production) and their interaction with other biogeochemical cycles (C, P, Fe and O2) is therefore of fundamental importance for predicting the response of marine biogeochemistry to ongoing climate change. Recent advances in N-cycling have come from diverse research fields spanning from novel molecular tools, refined isotopic techniques to global biogeochemical modelling. We invite contributions that use diverse approaches (such as stable and radiogenic isotopes, trace elements, biomarkers, and modelling) to study marine N-cycle processes, covering diverse spatial and temporal scales. This session strives to bring together observationalists, experimentalists, theoreticians, and modellers to promote an integrated understanding of the N-cycling processes that have a critical role in the Earth's climate system.
Primary Chair:  Angela Landolfi, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Co-chairs:  Christopher J Somes, Ji Qixing and Wolfgang Koeve, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Moderators:  Christopher J Somes, Angela Landolfi and Wolfgang Koeve, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Student Paper Review Liaison:  Christopher J Somes, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
4802 Anoxic environments [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • ES - Ecology and Social Interactions
  • MM - Microbiology and Molecular Ecology
  • OM - Ocean Modeling
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

Investigating reaction kinetics, products and isotope signatures during abiotic reduction of nitrate and nitrite by amorphous iron sulfide  (314863)
Noah Gluschankoff1, Chawalit Charoenpong2, Jeffrey Seewald3 and Scott D Wankel3, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Science, Cambridge, MA, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Marine N2O Emissions from Nitrification and Denitrification Constrained by Modern Observations and Projected Under Large Anthropogenic Deoxygenation (306182)
Gianna Battaglia, University of Bern, Climate and Environmental Physics, Bern, Switzerland and Fortunat Joos, Univ Bern, Climate and Environmental Physics, Bern, Switzerland
Nitrogen Concentration and Isotopic Changes over the Past 250 Years in a Red Sea Coral (307339)
Brooke Rasina, Scripps Institution of Oceanography, La Jolla, CA, United States; WHOI, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Chawalit Charoenpong, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Science, Cambridge, MA, United States, Scott D Wankel, Harvard University, Woods Hole, MA, United States and Konrad A Hughen, WHOI, Woods Hole, MA, United States
Nitric Oxide (NO) in the Oxygen Minimum Zone off Peru (310051)
Hermann Bange1, Damian L. Arevalo-Martinez2, Carolin R. Löscher3 and Hannah E. Lutterbeck2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR, Kiel, Germany, (3)Univ Southern Denmark, Odense, Denmark
Stress Response of a Marine Ammonia-Oxidizing Archaeon Informs Physiological Status of Environmental Populations (314623)
Wei Qin1, Shady A Amin2, Rachel A Lundeen1, Katherine Heal1, Willm Martens-Habbena3, Serdar Turkarslan4, Hidetoshi Urakawa5, Kyle C. Costa6, Erik L. Hendrickson7, Tony Wang7, David Beck8, Sonia M. Tiquia-Arashiro9, Fred Taub7, Andrew D. Holmes10, Neeraja Vajrala11, Paul Berube12, Todd M. Lowe10, James W Moffett13, Allan Devol14, Nitin S. Baliga15, Daniel J. Arp11, Luis A. Sayavedra-Soto16, Murray Hackett7, E. Virginia Armbrust1, Anitra E. Ingalls17 and David Stahl17, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)New York University Abu Dhabi, Biology, Abu Dhabi, United Arab Emirates, (3)University of Florida, United States, (4)Institute for Systems Biology, Seattle, WA, United States, (5)Florida Gulf Coast University, FL, United States, (6)California Institute of Technology,, CA, United States, (7)University of Washington, WA, United States, (8)University of Washington Seattle Campus, Chemical Engineering, Seattle, WA, United States, (9)University of Michigan, Dearborn, MI, United States, (10)University of California Santa Cruz, CA, United States, (11)Oregon State University, OR, United States, (12)Massachusetts Institute of Technology, Cambridge, MA, United States, (13)University of Southern California, Los Angeles, CA, United States, (14)Univ Washington, Seattle, WA, United States, (15)Institute for Systems Biology, WA, United States, (16)Oregon State University, WA, United States, (17)University of Washington, Seattle, WA, United States
Temperature effect on nitrification rate in the South China Sea (315265)
Zhen-Zhen Zheng and Shuh-Ji Kao, State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
Phytoplankton Decline Under Rising CO2 Amplifies Tropical Warming Through Changes in Light Absorption (316177)
Hanna Paulsen, Tatiana Ilyina, Johann H Jungclaus, Katharina Dorothea Six and Irene Stemmler, Max Planck Institute for Meteorology, Hamburg, Germany
The N and O isotope systematics for nitrate reduction by a marine nitrite oxidizer, Nitrococcus mobilis (319910)
Carolyn Buchwald, Dalhousie University, Halifax, NS, Canada and Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Organic Nitrogen Load Sourcing in North Carolina Coastal Plain Waters Using Stable Nitrogen Isotope Analysis (322805)
Adam Chaffin, University of North Carolina at Wilmington, Marine Science, Wilmington, NC, United States
Molecular and stable isotopic characterization of nitrogen cycling in hadopelagic sediments (316313)
Manabu Nishizawa1, Miho Hirai2, Hidetaka Nomaki3, Akiko Makabe1, Ken Takai1 and Takuro Nunoura1, (1)JAMSTEC, Yokosuka, Japan, (2)Japan Agency for Marine-Earth Science and Technology, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Examination of Nitrogen and Oxygen Isotopes of Nitrate in the Benguela Upwelling Zone (315431)
Jaclyn E Pittman, San Diego State University, Chemistry and Biochemistry, San Diego, CA, United States, Brian D Peters, Stanford Earth Sciences, Stanford, CA, United States, Eric P. Achterberg, GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany and Karen L Casciotti, Stanford University, Stanford, United States
Nitrogen cycling processes across the upper and lower boundaries of the Primary Nitrite Maximum in the Eastern Tropical North Pacific (314579)
Nicole Mayu Travis, Stanford University, Earth System Science, Palo Alto, CA, United States, Matthew Sean Forbes, Stanford University, Stanford, CA, United States and Karen Casciotti, Stanford University, Earth System Science, Stanford, CA, United States
Sediment N-Cycling in Long Island Sound: Spatial and Temporal Patterns of Denitrification, DNRA, and Gross Mineralization. (322846)
Sydney Lynn Twarz1, Veronica Rose Rollinson2, Clare Schlink3 and Craig R Tobias2, (1)University of Connecticut - Avery Point Campus, Groton, CT, United States, (2)University of Connecticut, Department of Marine Sciences, Groton, CT, United States, (3)University of Connecticut, Groton, CT, United States
Controls on Nitrite Distribution and Isotopes: Insights from a 3D Global Inverse Model (313187)
Taylor Sparks Martin, Stanford University, Earth System Science, Stanford, CA, United States, Francois Primeau, University of California Irvine, Irvine, CA, United States and Karen L Casciotti, Stanford University, Stanford, United States
Nitrogen cycling and N2O flux perturbations in the Anthropocene (311935)
Angela Landolfi1, Wolfgang Koeve2, Christopher J Somes1, Lauren M Zamora3 and Andreas Oschlies1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemical Modeling, Kiel, Germany, (3)Earth System Science Interdisciplinary Center, College Park, MD, United States
Exploring Redox Interactions Between Nitrogen and Manganese: An Isotopic Study of Nitrite Oxidation by Ligand-bound Manganese (III) (325921)
Jennifer S Karolewski1,2, Kevin Michael Sutherland1,2, Colleen M Hansel1 and Scott D. Wankel1, (1)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Science, Cambridge, MA, United States
Intracellular nitrate in benthic diatom mats (318470)
Jeremy Joel Rich1, Elizabeth Gorse2, Sean O'Neill1, Julia Mackin-McLaughlin1, Emilee Burris3 and Aria Amirbahman2, (1)University of Maine, School of Marine Sciences, Orono, ME, United States, (2)University of Maine, Civil and Environmental Engineering, Orono, ME, United States, (3)University of Southern Maine, Gorham, ME, United States

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