OB029
The role of plankton physiology and ecology for ocean biogeochemistry

Session ID#: 84671

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.

Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1635 Oceans [GLOBAL CHANGE]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]

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, Marine Biogeoscoences, Bremerhaven, Germany and Stephanie Dutkiewicz, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
Primary Liaison:  Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
 
Spatial variability of iron and light co-limitation in the Southern Ocean during the Austral summer. (637301)
Clara R Vives1,2, Christina Schallenberg2, Philip W. Boyd2, Joan Llort3,4 and Peter G Strutton1,2, (1)Australian Research Council Centre of Excellence for Climate Extremes, Hobart, TAS, Australia, (2)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies (IMAS), ARC Centre of Excellence for Climate System Science, Hobart, Australia, (4)Barcelona Supercomputing Center, Earth Sciences Department - Climate Prediction Group, Barcelona, Spain
 
Uncoupling of Seasonal Variations between Phytoplankton Chlorophyll a and Production in the East China Sea (639130)
Xin Liu1, Edward Laws2, Yuyuan Xie3, Lei Wang4, Lizhen Lin5 and Bangqin Huang1, (1)Xiamen University, State Key Laboratory of Marine Environmental Science, Xiamen, China, (2)Louisiana State University, Baton Rouge, LA, United States, (3)NOAA Fisheries - Milford, Milford, CT, United States, (4)Xiamen University, State Key Lab of Marine Environmental Science, Xiamen, China, (5)Xiamen University, China
 
Deciphering Biogeographical Controls on Marine N2 Fixation of Trichodesmium by Integrating Optimality-based Cellular and Biogeochemical Model with MITgcm (641260)
Weicheng Luo and Ya-Wei Luo, Xiamen University, Xiamen, China
 
Biogeochemical Implications Of Diel Changes In Migratory Copepod Physiology (643460)
Amy E Maas1, Leocadio Blanco-Bercial1, Nora McNamara-Bordewick2, Brook L Nunn3, Emma Timmins-Schiffman4 and Ann Tarrant5, (1)Bermuda Institute of Ocean Sciences, St. George's, Bermuda, (2)Woods Hole Oceanographic Institution, United States, (3)University of Washington, Department of Genome Sciences, Seattle, United States, (4)University of Washington, Department of Genome Sciences, Seattle, WA, United States, (5)Woods Hole Oceanographic Institution, Department of Biology, Woods Hole, MA, United States
 
NADPH-dependent extracellular superoxide production is vital to photophysiology in the marine diatom Thalassiosira oceanica (644198)
Sydney Plummer1, Julia Diaz1, Colleen Hansel2, Peter F Andeer3, Mak A Saito2 and Matthew R McIlvin2, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
 
Annual Variability of Particulate and Dissolved Primary Production in the Subtropical Coastal NW Pacific (645022)
Tzong-Yueh Chen and Yi-Xiang Lan, National Taiwan Ocean University, Institute of Marine Environment and Ecology, Keelung, Taiwan
 
Influence of microbial and molecular diversity on the storage of marine dissolved organic matter: Insights from a modelling perspective (646008)
Sinikka Lennartz1, Andrea Mentges2, Bernd Blasius2, Curtis A. Deutsch3, David P Keller4, Andreas Oschlies4, Christoph Feenders2 and Thorsten Dittmar5, (1)University of Oldenburg, ICBM-MPI Bridging Group for Marine Geochemistry, Institute for Chemistry and Biology of the Marine Environment, 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, WA, United States, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)University of Oldenburg, Oldenburg, Germany
 
Impact of Photoacclimatory Status and Community Structure on the Bio-optical Properties of Marine Phytoplankton (646160)
Sornsiri Phongphattarawat, Heather A. Bouman and Qiong Zhang, University of Oxford, Earth Sciences, Oxford, United Kingdom
 
Underestimated role of the specialized metabolism in microalgae species dynamics using the toxic benthic dinoflagellate Ostreopsis cf. ovata as a model. (646470)
Eva Ternon, Géoazur - Université Nice Sophia Antipolis, Valbonne, France; CNRS - Sorbonne Universités, LOV - UMR7093, Villefranche Sur Mer, France, Anne-Sophie Pavaux, CNRS - Sorbonne Universités, LOV - UMR7093, Villefranche sur mer, France, Cécile Jauzein, IFREMER, DYNECO PELAGOS, Plouzané, France, Marin-Pierre Gémin, IFREMER, PHYCOTOXINS, Nantes, France, Alexandra Peltekis, CNRS - Sorbonne Universités, IBPC - UMR7141, Paris, France, Benjamin Bailleul, CNRS - Sorbonne Universités, IBPC- UMR7141, Paris, France, Rodolphe Lemée, CNRS - Sorbonne Université, LOV - UMR7093, Villefranche sur mer, France and Olivier P. Thomas, NUI Galway, Marine Biodiscovery, School of Chemistry and Ryan Institute, Galway, Ireland
 
Modeling photosynthesis and the exudation of DOM in the subtropical oceans (646484)
Zhen WU, Mick Follows and Stephanie Dutkiewicz, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Field observations and physical-biogeochemical modelling suggest low silicon affinity for Antarctic fast ice diatoms (646773)
Stephanie Lim1,2, Sebastien Moreau2, Martin Vancoppenolle3, Florian Deman4, Arnout Roukaerts4, Klaus Meiners5,6, Julie Janssens2,6 and Delphine Lannuzel2,6, (1)Scripps College, Claremont, CA, United States, (2)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (3)CNRS, LOCEAN-IPSL, Université Pierre et Marie Curie, Paris, France, (4)Vrije Universiteit Brussel, Analytical, Environmental and Geo-Chemistry, Ixelles, Belgium, (5)Australian Antarctic Division, Department of the Environment, Kingston, ACT, Australia, (6)Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS, Australia
 
New Phytoplankton Communities Revealed in Coastal Antarctica Using a Citizen Science Approach (646986)
Allison Cusick, Scripps Institution of Oceanography, La Jolla, CA, United States, Martina Mascioni, Universidad Nacional de La Plata, Argentina, Gastón O. Almandoz, Universidad Nacional de La Plata, La Plata, Argentina and Maria Vernet, Scripps Institution of Oceanography, Integrative Oceanography Division, La Jolla, CA, United States
 
Patterns and Scales of Phytoplankton Variability in the Coastal Waters of West Florida Shelf. (647271)
Sumit Chakraborty, Mote Marine Laboratory, Sarasota, FL, United States and Vincent John Lovko, Mote Marine Laboratory, Ocean Technology, Sarasota, FL, United States
 
Marine phytoplankton resilience moderate responses and biogeochemical feedbacks to climate change (647630)
Adam Martiny1, George Hagstrom2, Timothy DeVries3, Robert T Letscher4, Gregory L. Britten5,6, Catherine Garcia7, Eric D Galbraith8, David M Karl9, Simon Levin2, Michael W Lomas10, Allison Moreno1, David Talmy11, Weilei Wang12, Jefferson Keith Moore7 and Katsumi Matsumoto13, (1)University of California Irvine, Ecology and Evolutionary Biology, Irvine, CA, United States, (2)Princeton University, Ecology and Evolutionary Biology, Princeton, NJ, United States, (3)University of California, Santa Barabara, Earth Research Institute and Department of Geography, Santa Barabara, United States, (4)University of New Hampshire, Earth Sciences, Durham, NH, United States, (5)Dalhousie University, Halifax, NS, Canada, (6)Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, United States, (7)University of California Irvine, Earth System Science, Irvine, CA, United States, (8)McGill University, Montreal, QC, Canada, (9)University of Hawaii, Department of Oceanography, Honolulu, HI, United States, (10)Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, (11)The University of Tennessee, Microbiology, Knoxville, TN, United States, (12)University of California, Irvine, Earth System Science, Irvine, CA, United States, (13)University of Minnesota, Minneapolis, MN, 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, WA, Australia, Nicole A Hill, Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, Peter G Strutton, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia and Philip W. Boyd, University of Tasmania, Institute for Marine and Antarctic Studies, Antarctic Climate Ecosystems Cooperative Research Centre, Hobart, Australia
 
Dissolved Organic Carbon Accumulation and Export Potential in the Western North Atlantic (648285)
Nicholas Baetge1, Jason Graff2, Michael Behrenfeld2 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
 
A novel bio-optical model that allows incorporation of traditional plankton and remote sensing methods and observations and improves the assessment of biogeochemical processes (649032)
Jennifer Skerratt1, Monika Soja-Wozniak1, Mark Edward Baird1, Mathieu Mongin1, Karen Wild-Allen1, Barbara Robson2 and Nugzar Margvelashvili1, (1)CSIRO Oceans and Atmosphere Hobart, Hobart, TAS, Australia, (2)AIMS, Townsville, QLD, Australia
 
Unique photoprotection strategies by diatoms from ecologically distinct light environments (649803)
Nerissa Fisher, United States, David J Suggett, University of Technology Sydney, Climate Change Cluster, Sydney, Australia and Kimberly Halsey, Oregon State University, Corvallis, OR, United States
 
Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific (650075)
Yoshikazu Sasai1, Sherwood Lan Smith2, Eko Siswanto3, Hideharu Sasaki2 and Masami Nonaka4, (1)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Global Change (RIGC), Yokohama, Japan, (2)JAMSTEC, Yokohama, Japan, (3)JAMSTEC, Japan, (4)Application Laboratory, JAMSTEC, Yokohama Kanagawa, Japan
 
C: N: P OF THE PRASINOPHYTE CHLOROPICON UNDER NITROGEN STARVATION (651101)
Vinitha Ebenezer, Ruby Hu, Susan Sharpe and Zoe Finkel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada
 
Assessing the influence of Subantarctic calcification on the global distribution of alkalinity (652247)
Kristen M. Krumhardt1, Matthew C Long2, Keith T Lindsay3 and Michael Levy1, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)National Center for Atm Res, Boulder, CO, United States, (3)NCAR, Boulder, CO, United States
 
Assessment of phytoplankton community composition and cobalamin nutritional status using protein abundance measurements on the Scotian Shelf and Slope (653425)
Elden Rowland1, Tor Kitching1, Emmanuel Devred2, Julie LaRoche1 and Erin Marie Bertrand1, (1)Dalhousie University, Department of Biology, Halifax, NS, Canada, (2)Bedford Institute of Oceanography, Halifax, NS, Canada
 
Temperature But Not CO2 Stimulates Growth in Southern Ocean Phytoplankton Over a Range of Light and Fe Conditions (654033)
Sarah Andrew1, Robert F Strzepek2 and Michael Joseph Ellwood1, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)University of Tasmania, Antarctic Gateway Partnership, Institute for Marine and Antarctic Studies (IMAS), Hobart, TAS, Australia
 
Interactive Effects of Iron, Vitamin B12 and UV Light on Phytoplankton in the Amundsen Sea (655230)
Giacomo R DiTullio1, Nicole Lyn Schanke2, Francesco Bolinesi3, Lauren Lees4, Raffaella Casotti5, Peter A Lee6, Mak A Saito7 and Olga Mangoni3, (1)College of Charleston, Department of Biology, Charleston, SC, United States, (2)College of Charleston, Charleston, SC, (3)University of Napoli, Biology, Naples, Italy, (4)University of California Irvine, Ecology and Evolutionary Biology, Irvine, CA, United States, (5)Zoological Station Anton Dohrn of Naples, Integrative Marine Ecology, Naples, Italy, (6)College of Charleston, Charleston, SC, United States, (7)WHOI, Woods Hole, MA, United States
 
How sensitive is the growth and elemental composition of the widespread Arctic diatom Chaetoceros gelidus to changing environmental conditions? (655441)
Nicolas Schiffrine, United States, Jean-Eric Tremblay, Laval University, Biology, Quebec City, QC, Canada and Marcel Babin, Takuvik Joint International Laboratory, Université Laval & CNRS, Québec, QC, Canada
 
Phospholipid turnover rates suggest that bacterial growth rates in the open ocean are systematically underestimated (655933)
Kimberly J. Popendorf, University of Miami, Ocean Sciences, Miami, FL, 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 Krishnamurthy1, Delphine Mion2, Adam G. Larson1, Hongquan Li1 and Ethan Li1, (1)Stanford University, Bioengineering, Stanford, CA, United States, (2)Polytechnique, France, France
 
A trait-based approach to describe the elemental stoichiometry ofmarine phytoplankton and the regulation of the biological pump (658185)
George Hagstrom1, Simon Levin1, Catherine Garcia2, Gregory L. Britten3, Francois Primeau2, Weilei Wang4 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, (3)Dalhousie University, Halifax, NS, Canada, (4)University of California, Irvine, Earth System Science, Irvine, CA, United States
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