BN11B:
Bridging Microbial, Stable Isotope, and Micronutrient Approaches to Marine Carbon and Nitrogen Recycling I


Session ID#: 37652

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 carbon (e.g. export production) and nitrogen (e.g. nitrogen fixation, denitrification) cycles, focusing on the use of stable isotope approaches.
Primary Chair:  Patrick A Rafter, University of California Irvine, Irvine, CA, United States
Co-chairs:  Alexis Pasulka, California Polytechnic State University, Department of Biological Sciences, San Luis Obispo, CA, United States, Katherine Dawson, Rutgers University, New Brunswick, NJ, United States and Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States
Moderators:  Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States, Alexis Pasulka, California Polytechnic State University, Department of Biological Sciences, San Luis Obispo, CA, United States, Katherine Dawson, California Institute of Technology, Pasadena, CA, United States and Patrick A Rafter, University of California, Irvine, Irvine, CA, United States
Student Paper Review Liaisons:  Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States and Katherine Dawson, California Institute of Technology, Pasadena, CA, United States
Index Terms:

4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4870 Stable isotopes [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4875 Trace elements [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • MM - Microbiology and Molecular Ecology

Abstracts Submitted to this Session:

The Influence of Flexible Stoichiometry on Biogeochemical Cycling (320287)
George Hagstrom1, Simon Levin1 and Adam Martiny2, (1)Princeton University, Ecology and Evolutionary Biology, Princeton, NJ, United States, (2)University of California, Irvine, Earth System Science, Irvine, CA, United States
Planktonic Production of the Patagonian Shelf and Malvinas/Brazil Confluence Region: the Iron and Nitrogen cycles (304934)
Yvette H Spitz1, Ricardo P Matano1 and Vincent Combes2, (1)Oregon State Univ, Corvallis, OR, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
Investigating Organic Substrate Utilization by Marine Thaumarchaeota Using Metatranscriptomics and FISH-NanoSIMS (323594)
Anne E Dekas1, Alma Elizabeth Parada2, Xavier Mayali3, Jed A Fuhrman4, Peter K Weber3 and Jennifer Pett-Ridge3, (1)Stanford University, Department of Earth System Science, Stanford, CA, United States, (2)Stanford University, Stanford, CA, United States, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States, (4)Univ Southern California, Los Angeles, CA, United States
Stable Isotope Probing and NanoSIMS Reveals Effects of Physical Association on Mutualisms Between Individual Bacterial Cells and Two Species of Phytoplankton (325095)
Ty James Samo1, Jeff Kimbrel2, Daniel Nilson2, Jennifer Pett-Ridge2, Peter K Weber2 and Xavier Mayali2, (1)Lawrence Livermore National Laboratory, Nuclear and Chemical Sciences Division, Livermore, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States
Tracking Assimilation of Bacterial Prey Biomass into Protozoan Predators by Stable Isotope Probing and Confocal Raman Microspectrometry (319735)
Felix Weber1, Tatiana Zaliznyak1, Roxanne Beinart2, Virginia P Edgcomb3 and Gordon T Taylor1, (1)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (2)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (3)Woods Hole Oceanographic Institution, Geology & Geophysics, Woods Hole, MA, United States
Nitrogen isotope fractionation patterns of chlorophyll in a natural phytoplankton community (324397)
Jenan J Kharbush, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States and Ann Pearson, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
A Seasonal Comparison of nitrogen uptake and nitrification in the South Atlantic Southern Ocean. (302481)
Mhlangabezi Mdutyana, University of Cape Town, Department of Oceanography, Cape Town, South Africa, Sandy Jane Thomalla, CSIR, Southern Ocean Carbon and Climate Observatory, South Africa, Raissa Philibert, University of British Columbia, Coastal Ocean Research Institute, Ocean Wise, Vancouver, BC, Canada, Bess B Ward, Princeton University, Department of Geosciences, Princeton, NJ, United States and Sarah E Fawcett, University of Cape Town, Department of Oceanography, Rondebosch, South Africa
Tidal Mixing Drives Episodic Spring-Neap Pulses of Nutrients to the Euphotic Zone (317593)
Robyn Elizabeth Tuerena1, Jonathan Sharples2, Mattias Green3, Richard G Williams1, Claire Mahaffey4, Clement Vic5, Alberto Naveira Garabato5 and Alexander Forryan5, (1)University of Liverpool, Liverpool, United Kingdom, (2)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, (3)Bangor University, School of Ocean Sciences, Bangor, LL59, United Kingdom, (4)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (5)University of Southampton, Southampton, United Kingdom

See more of: Biogeochemistry and Nutrients