OB44F:
Linking Microbial, Isotope, Micronutrient, and Other Approaches to Understand Carbon and Nutrient Cycling in the Ocean II Posters

Session ID#: 85240

Session Description:
Marine biogeochemistry is critical to the ocean’s ability to regulate atmospheric concentrations of carbon dioxide and other greenhouse gases. Here we examine the nutrient and microbial processes that are important for sustaining the marine biological carbon pump (e.g. new/export production, nitrogen fixation, denitrification), focusing on the use of stable isotope probing, ‘omics’techniques, trace metals, radioisotopes, micro-nutrients, numerical simulations, and more. The goal of this session is to bring together marine biogeochemists using these various methods to obtain a more accurate view of biologically-related elemental cycling in the ocean—from microbes to macro fauna.
Co-Sponsor(s):
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • ME - Marine Ecology and Biodiversity
Index Terms:

4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: CHEMICAL]
4870 Stable isotopes [OCEANOGRAPHY: CHEMICAL]
Primary Chair:  Patrick A Rafter, University of California Irvine, Earth System Science, Irvine, United States
Co-chairs:  Alexis Pasulka, California Polytechnic State University, San Luis Obispo, Department of Biological Sciences, San Luis Obispo, CA, United States, Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States and Katherine Dawson, Caltech MC 100-23, Pasadena, CA, United States
Primary Liaison:  Patrick A Rafter, University of California, Irvine, Earth System Science, Irvine, United States
Moderators:  Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States and Katherine Dawson, Caltech MC 100-23, Pasadena, CA, United States
Student Paper Review Liaison:  Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States

Abstracts Submitted to this Session:

 
A Targeted Lipidomics and Compound- Specific Isotope Ratio Analysis Approach in Profiling Microbial Community in Submarine Groundwater Discharge in Southern Luzon, Philippines (657746)
Jihan Al-Shdifat, The Marine Science Institute, University of the Philippines - Diliman, Quezon City, Philippines, Caroline Marie Jaraula, Marine Science Institute, University of the Philippines, Metro Manila, Philippines, M. Bayani Cardenas, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, Aljon Francis Koji Elegado, The Marine Science Institute, University of the Philippines- Diliman, Philippines, Danie Mao-Chang Liang, Academia Sinica, Taiwan, Raymond Rodolfo, Ateneo de Manila University, Department of Environmental Science, Quezon City, Philippines and Mark Lapus, Ridge to Reef Solutions, Inc., Philippines
 
AIBECS.jl: the ideal tool for marine biogeochemistry modelling (651606)
Benoit Pasquier, University of California Irvine, Irvine, CA, United States and Francois Primeau, University of California Irvine, Earth System Science, Irvine, CA, United States
 
Amino Acid Carbon Isotopes in Core-Top Sediments of the Northern Labrador Sea and Baffin Bay Track the Origins of Export Productivity across Environmental Gradients (657623)
Shaomin Chen1, Chelsea Renée Fougère1, Blake S Tibert2, Markus Kienast3 and Owen Sherwood1, (1)Dalhousie University, Department of Earth and Environmental Sciences, Halifax, NS, Canada, (2)Dalhousie University, NS, Canada, (3)Dalhousie University, Department of Oceanography, Halifax, NS, Canada
 
Ammonium Dynamics in the South China Sea-Kuroshio and the Mid-Atlantic Shelf Break Frontal Zones (647335)
Yifan Zhu1, Minhan Dai2, Dennis Joseph McGillicuddy Jr3, Margaret R Mulholland4, Dreux Chappell1 and Sophie Clayton5, (1)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (2)State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China, (3)Woods Hole Oeanographic Institution, Woods Hole, MA, United States, (4)Old Dominion University, Ocean and Earth Sciences, Norfolk, United States, (5)Old Dominion University, Ocean, Earth, and Atmospheric Sciences, Norfolk, VA, United States
 
Characterizing Isotopic Fingerprints of Eukaryotic Microalgae to Study Sources and Cycling of Organic Matter through Food Webs (655409)
Angela Stahl, Tatiana A Rynearson and Kelton McMahon, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
 
Controls on dissolved organic carbon and nitrogen distributions in the upper South Pacific Ocean (643503)
Mariana Bernardi Bif, Monterey Bay Aquarium Research Institute (MBARI), Moss Landing, CA, United States, Annie Bourbonnais, University of South Carolina, School of the Earth, Ocean & Environment, Columbia, SC, United States, Julie Granger, University of Connecticut, Department of Marine Sciences, Groton, CT, United States, Mark A Altabet, Univ Massachusetts Darmouth, New Bedford, MA, United States and Dennis A Hansell, University of Miami, Miami, United States
 
Determining the 15N and 18O isotope effects of nitrite oxidation in multiple species of nitrite-oxidizing bacteria in continuous culture (654929)
Jennifer Butler and Carolyn Buchwald, Dalhousie University, Department of Oceanography, Halifax, NS, Canada
 
Development of a high-precision seawater DIC isotope analysis system (649261)
Julia L Dohner, Mariela K Brooks, Bill Paplawsky, Andreas J Andersson and Ralph F Keeling, Scripps Institution of Oceanography, La Jolla, CA, United States
 
Mangroves and seagrasses as nutrient subsidies for coral reefs in the Red Sea (636805)
Aislinn Dunne, King Abdullah University of Science and Technology, Red Sea Research Center, Thuwal, Saudi Arabia, Ulrich Struck, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Museum für Naturkunde, Berlin, Germany and Burton H Jones, King Abdullah University of Science and Technology (KAUST), Red Sea Research Center, Thuwal, Saudi Arabia
 
Nitrification in Mode Water Formation Regions and its Contribution to Low Latitude Nitrogen Supply (652091)
Robyn Tuerena, University of Edinburgh, Edinburgh, United Kingdom, Pearse Buchanan, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, Alessandro Tagliabue, University of Liverpool, Liverpool, United Kingdom and Raja Ganeshram, University of Edinburgh, School of Geosciences, Edinburgh, United Kingdom
 
Nitrite cycling experiments across the upper and lower boundaries of the Primary Nitrite Maximum in the Eastern Tropical North Pacific (653556)
Nicole Mayu Travis, Stanford University, Earth Systems Science, Stanford, CA, United States, Karen L Casciotti, Stanford University, Stanford, United States and Colette LaMonica Kelly, Stanford University, Stanford, CA, United States
 
Nitrogen fixation can support a substantial fraction of pelagic primary production in Brazilian waters (640290)
Ana Fernández-Carrera, University of Vigo, Ecoloxia e Bioloxia Animal, Ourense, Spain, Amalia Maria Sacilotto Detoni, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, Brazil, Peter Brandt, GEOMAR, Kiel, Germany and Ajit Subramaniam, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Nitrogenous Nutrient Preferences and Intracellular Ammonium Accumulation by the Bloom-Forming Mixotroph Green Noctiluca scintillans (652835)
Alisa D'Souza1, Aviva Schwarz2, Hao Luo3, Helga R Gomes4 and Joaquim I Goes4, (1)Peekskill High School, Peekskill, NY, United States, (2)Bronx High School of Science, Bronx, NY, United States, (3)Xiamen University, State Key Laboratory of Environmental Sciences, Xiamen, China, (4)Lamont Doherty Earth Obs, Palisades, NY, United States
 
Phytoplankton Uptake of Nitrate and Ammonium in Different Regions of Southern East China Sea (652208)
Lee-Kuo Kang, National Taiwan Ocean University, Institute of Marine Environment and Ecology / Bachelor Degree Program in Marine Biotechnology, Keelung, Taiwan and Kai-Zhe Chang, National Taiwan Ocean University, Institute of Marine Environment and Ecology, Keelung, Taiwan
 
Primary productivity and nitrogen uptake in the eastern tropical Pacific Ocean (656789)
Margaret R Mulholland, Old Dominion University, Ocean and Earth Sciences, Norfolk, United States, Corday Selden, Cuernavaca, Mexico, Peter W Bernhardt, Old Dominion University, Department of Ocean and Earth Sciences, Norfolk, United States and Brittany Widner, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States
 
Put it in Reverse: Isotopic Insights From a Nitrite-oxidizer Performing Nitrate Reduction (653316)
Carolyn Buchwald, Dalhousie University, Department of Oceanography, Halifax, NS, Canada and Scott D Wankel, Harvard University, Woods Hole, MA, United States
 
The kinetics of ammonium uptake and oxidation during winter across the Indian sector of the Southern Ocean (646519)
Mhlangabezi Mdutyana1, Xin Sun2, Jessica Burger1, Sandy Jane Thomalla3, Bess B Ward4 and Fawcett Sarah1, (1)University of Cape Town, Oceanography, Cape Town, South Africa, (2)Princeton University, Princeton, NJ, United States, (3)CSIR, Southern Ocean Carbon and Climate Observatory, South Africa, (4)Princeton University, Department of Geosciences, Princeton, NJ, United States
 
Towards a Better Understanding of Coastal Carbon Cycling and Sequestration: Quantifying Sinking Carbon in the Bedford Basin and Beyond (646996)
Stephanie Kienast1, Erin E Black1,2 and Christopher K Algar1, (1)Dalhousie University, Halifax, NS, Canada, (2)Lamont -Doherty Earth Observatory, Palisades, United States
 
Vitamin B12 and the microbial heterotrophic and autotrophic metabolism in two regions influence by the California current. (648537)
Josue Villegas-Mendoza1, Mary Carmen Ruiz-de la Torre2, Karina Lugo-Ibarra3, Diana Rodriguez Escobar3 and Andrés Cano-Suzan4, (1)Autonomous University of Baja California, Marine Science Faculty, Ensenada, BJ, Mexico, (2)Autonomous University of Baja California, Marine Science Faculty, Mexicali, BJ, Mexico, (3)Universidad Autónoma de Baja California, Facultad de Ciencias Marinas, Ensenada, BJ, Mexico, (4)Universidad Autónoma de Baja, Facultad de Ciencias Marinas, Ensenada, BJ, Mexico