OB34H:
The Role of Plankton Physiology and Ecology for Ocean Biogeochemistry II Posters

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.

Co-Sponsor(s):
  • ME - Marine Ecology and Biodiversity
  • PC - Past, Present and Future Climate
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1635 Oceans [GLOBAL CHANGE]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4858 Population dynamics and ecology [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
Moderators:  Stephanie Dutkiewicz, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States and Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Student Paper Review Liaison:  Friederike Prowe, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany

Abstracts Submitted to this Session:

 
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
 
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
 
NADPH-dependent extracellular superoxide production is vital to photophysiology in the marine diatom Thalassiosira oceanica (644198)
Sydney Plummer1, 1, 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
 
Unique photoprotection strategies by diatoms from ecologically distinct light environments (649803)
Nerissa Fisher1, David J Suggett1 and Kimberly Halsey2, (1)University of Technology Sydney, Climate Change Cluster, Sydney, Australia, (2)Oregon State University, Corvallis, OR, United States
 
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
 
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
 
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)Stanford University, Earth System Science, Stanford, 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
 
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
 
How sensitive is the growth and elemental composition of the widespread Arctic diatom Chaetoceros gelidus to changing environmental conditions? (655441)
Nicolas Schiffrine1,2, Jean-Eric Tremblay2 and Marcel Babin1, (1)Takuvik Joint International Laboratory, Université Laval & CNRS, Québec, QC, Canada, (2)Laval University, Biology, Quebec City, QC, Canada
 
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
 
Assessing the influence of Subantarctic calcification on the global distribution of alkalinity (652247)
Kristen M. Krumhardt, National Center for Atmospheric Research, Boulder, United States, Matthew C Long, National Center for Atm Res, Boulder, CO, United States, Keith T Lindsay, NCAR, Boulder, CO, United States and Michael Levy, National Center for Atmospheric Research, Boulder, CO, United States
 
Information exchange among marine microbes via the reactive oxygen species hydrogen peroxide, with potential community reorganization effects (648322)
Suzanne Strom, Shannon Point Marine Center, Anacortes, WA, United States and Kelley Bright, Shannon Point Marine Ctr, Anacortes, WA, 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
 
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
 
New Phytoplankton Communities Revealed in Coastal Antarctica Using a Citizen Science Approach (646986)
Allison Cusick, Scripps Institution of Oceanography, La Jolla, United States, Martina Mascioni, Universidad Nacional de La Plata, Buenos Aires, 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