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.
Primary Chair: Patrick A Rafter, University of California Irvine, Earth System Science, Irvine, CA, 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
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
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
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
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
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
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
