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):
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: Stephanie Dutkiewicz, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, 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:
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 Plummer, Scripps Institution of Oceanography, La Jolla, CA, United States, Julia M Diaz, Scripps Institution of Oceanography, La Jolla, United States, Colleen Hansel, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, Peter F Andeer, Lawrence Berkeley National Laboratory, Berkeley, United States, Mak A Saito, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States and Matthew R McIlvin, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, 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)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, United States
Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific (650075)
Yoshikazu Sasai1, Dr. Sherwood Lan Smith, PhD2, 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)JAMSTEC, Application Laboratory, Yokohama, 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 Janssens7,8 and Delphine Lannuzel2,8, (1)Stanford University, Earth System Science, Stanford, 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)University of Tasmania, Australian Centre for Excellence in Antarctic Science, Hobart, TAS, Australia, (7)CSIRO Marine and Atmospheric Research Hobart, Hobart, TAS, Australia, (8)Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS, Australia
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. Krumhardt1, Matthew C Long2, Keith T Lindsay3 and Michael Levy1, (1)National Center for Atmospheric Research, Climate and Global Dynamics, Boulder, United States, (2)[C]Worthy, LLC, Boulder, United States, (3)NCAR, Boulder, CO, United States
New Phytoplankton Communities Revealed in Coastal Antarctica Using a Citizen Science Approach (646986)
Allison Cusick1, Martina Mascioni2, Gastón O. Almandoz2 and Maria Vernet3, (1)Scripps Institution of Oceanography, La Jolla, United States, (2)Universidad Nacional de La Plata, La Plata, Argentina, (3)Scripps Institution of Oceanography, La Jolla, CA, United States
