OB33C:
The Role of Plankton Physiology and Ecology for Ocean Biogeochemistry I eLightning
Session ID#: 93193
Session Description:
Global biogeochemical cycling determines the ocean's role in the climate system. Patterns of nutrient and oxygen distributions and carbon uptake are shaped by primary production, the subsequent export of organic matter to the deep ocean, remineralization of carbon and nutrients along the way and circulation on long time scales.
On short time scales, however, physiological and ecological processes are what actually drive the carbon uptake and the subsequent remineralization. Alterations in, e.g., competition, adaptation, and evolution may change community and food web structure and thereby affect ecosystem functions like resource use efficiency or nitrogen fixation.
We ask to what degree and in which regions do changes at the ecological and physiological level influence biogeochemical cycling and the ocean's role as a carbon sink on timescales from seasonal, interannual, centennial (e.g. future climate change) to millennial (i.e. past climate changes)?
We welcome both observational and modelling studies from local to global scales with a quantitative focus. In particular, we encourage studies featuring detailed ecological and/or physiological processes that directly link to the large-scale ocean biogeochemistry on one or more timescales.
Co-Sponsor(s):
Primary Chair: Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Co-chairs: Judith Hauck, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany and Stephanie Dutkiewicz, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States
Primary Liaison: Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Moderators: Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Judith Hauck, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany
Student Paper Review Liaison: Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Abstracts Submitted to this Session:
Influence of microbial and molecular diversity on the storage of marine dissolved organic matter: Insights from a modelling perspective (646008)
Sinikka T. Lennartz1, Andrea Mentges2, Bernd Blasius2, Curtis A. Deutsch3, David P Keller4, Andreas Oschlies4, Christoph Feenders2 and Thorsten Dittmar5, (1)University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany, (2)Carl von Ossietzky University Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany, (3)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)University of Oldenburg, ICBM, Oldenburg, Germany
Dissolved Organic Carbon Accumulation and Export Potential in the Western North Atlantic (648285)
Nicholas Baetge1, Jason Graff2, Michael Behrenfeld3 and Craig A Carlson1, (1)University of California Santa Barbara, Marine Science Institute/Department of Ecology, Evolution and Marine Biology, Santa Barbara, CA, United States, (2)Oregon State University, Corvallis, OR, United States, (3)Oregon State University, Department of Botany and Plant Pathology, Corvallis, OR, United States
Phospholipid turnover rates suggest that bacterial growth rates in the open ocean are systematically underestimated (655933)
Kimberly J. Popendorf, University of Miami, Rosenstiel School, Department of Ocean Sciences, Miami, United States, Michal Koblížek, Institute of Microbiology, Czech Republic and Benjamin AS Van Mooy, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Tracking single cells undergoing vertical migrations: Connecting Cell Biology to Ocean Ecology (657857)
Manu Prakash1, Deepak Krishnamurthy2, Delphine Mion3, Adam Larson2, Hongquan Li2 and Ethan Li4, (1)Stanford University, Bioengineering, Biology, Oceans, Stanford, United States, (2)Stanford University, Bioengineering, Stanford, CA, United States, (3)Polytechnique, France, France, (4)Stanford University, Bioengineering, Stanford, United States
Modeling photosynthesis and the exudation of DOM in the subtropical oceans (646484)
Zhen WU1, Mick Follows1 and Stephanie Dutkiewicz2, (1)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States
The biogeography of subsurface chlorophyll maxima in the Southern Ocean (648015)
Kimberlee Anne Baldry, University of Tasmania, Institute of Marine and Antarctic Science, Hobart, TAS, Australia, Nicole A Hill, Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, Peter G Strutton, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia and Philip W Boyd, University of Tasmania, Institute for Marine and Antarctic Studies, Antarctic Climate Ecosystems Cooperative Research Centre, Hobart, Australia
Spatial variability of iron and light co-limitation in the Southern Ocean during the Austral summer. (637301)
Clara R Vives1,2, Christina Schallenberg3, Philip W Boyd4, Joan Llort5,6 and Peter G Strutton1,7, (1)Australian Research Council Centre of Excellence for Climate Extremes, Hobart, TAS, Australia, (2)University of Copenhagen, Globe Institute, Section for Geobiology, Copenhagen, Denmark, (3)CSIRO, Environment, Hobart, TAS, Australia, (4)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, (5)University of Tasmania, Institute for Marine and Antarctic Studies (IMAS), ARC Centre of Excellence for Climate System Science, Hobart, Australia, (6)Barcelona Supercomputing Center, Earth Sciences Department - Climate Prediction Group, Barcelona, Spain, (7)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
Assessment of phytoplankton community composition and cobalamin nutritional status using protein abundance measurements on the Scotian Shelf and Slope (653425)
Erin Marie Bertrand1, Elden Rowland1, Tor Kitching1, Emmanuel Devred2 and Julie LaRoche1, (1)Dalhousie University, Department of Biology, Halifax, NS, Canada, (2)Bedford Institute of Oceanography, Halifax, NS, Canada
Biogeochemical Implications Of Diel Changes In Migratory Copepod Physiology (643460)
Dr. Amy E Maas, PhD1, Leocadio Blanco Bercial2, Nora McNamara-Bordewick3, Brook L Nunn4, Emma Timmins-Schiffman4 and Ann M Tarrant5, (1)Bermuda Institute of Ocean Sciences - Arizona State University, Julie Ann Wrigley Global Futures Laboratory, St. George's, Bermuda, (2)Bermuda Institute of Ocean Sciences, Arizona State University, St. George's, Bermuda, (3)Woods Hole Oceanographic Institution, United States, (4)University of Washington, Department of Genome Sciences, Seattle, United States, (5)Woods Hole Oceanographic Institution, Department of Biology, Woods Hole, MA, United States
A trait-based approach to describe the elemental stoichiometry ofmarine phytoplankton and the regulation of the biological pump (658185)
George Hagstrom1, Simon Levin2, Catherine Garcia3, Gregory L. Britten4, Francois Primeau3, Weilei Wang5 and Adam Martiny3, (1)Princeton University, Ecology and Evolutionary Biology, Princeton, NJ, United States, (2)Princeton University, Department of Ecology & Evolutionary Biology, Princeton, United States, (3)University of California Irvine, Earth System Science, Irvine, CA, United States, (4)Dalhousie University, Halifax, NS, Canada, (5)University of California, Irvine, Earth System Science, Irvine, CA, United States
