OC006:
Ocean Deoxygenation:  Impacts and Predictions


Session ID#: 29731

Session Description:
The global oceans are losing oxygen and oxygen minimum zones are predicted to expand, although the rates and even sign of oxygen change vary regionally, as indicated by new compilations of available oxygen measurements. An array of physical, biogeochemical and biological processes affect marine oxygen levels on time scales from days to centuries and space scales from meters to ocean basins, making it difficult to attribute oxygen changes to natural or anthropogenic causes. Furthermore, near oxygen depleted areas, local oxygen variability may exceed long term trends because of a variety of physical and biological processes. The impacts of these variations on marine organisms include effects on physiology, distributions, life cycles, and ecosystem function. Impacts are far from obvious, and the future outlook is uncertain. Furthermore current climate models have difficulties reproducing low oxygen regions and patterns of oxygen changes observed over past decades and also the biological effects of regional variability. This session invites observational, experimental, and modeling studies that address patterns and variability of marine oxygen distributions, their change during the historical period, and the mechanisms or impacts on organisms (from microbes to zooplankton and fish) of deoxygenation, as well as studies projecting future oxygen distributions.
Primary Chair:  Sunke Schmidtko, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Co-chairs:  Karen Wishner, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States and Curtis A. Deutsch, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1635 Oceans [GLOBAL CHANGE]
4834 Hypoxic environments [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • B - Biodiversity
  • BN - Biogeochemistry and Nutrients
  • IS - Ocean Observatories, Instrumentation and Sensing Technologies
  • OM - Ocean Modeling

Abstracts Submitted to this Session:

Fortunat Joos and Gianna Battaglia, University of Bern, Climate and Environmental Physics, Bern, Switzerland
Angélique Hameau, University of Bern, Bern, Switzerland, Juliette Mignot, LOCEAN-IPSL, Paris cedex 05, France and Fortunat Joos, Univ Bern, Bern, Switzerland
Lillian McCormick, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Lisa A Levin, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States and Nicholas W Oesch, University of California San Diego, Psychology, La Jolla, CA, United States
Olaf Duteil1, Claus W Boning2 and Andreas Oschlies2, (1)GEOMAR, Theory and Modeling, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Charlotte Anne June Williams, National Oceanography Centre, Liverpool, United Kingdom, Matthew Palmer, National Oceanography Center, Liverpool, United Kingdom, Claire Mahaffey, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom and Clare Elizabeth Davis, University of Liverpool, Earth, Oceans and Ecosystem Sciences, Liverpool, United Kingdom
Daoxun Sun, Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States and Takamitsu Ito, Georgia Institute of Technology, Atlanta, GA, United States
Julia Getzlaff and Andreas Oschlies, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Martin G D, Cochin, India
Karen Wishner1, Dawn Outram1, Christopher Roman1, Brad Seibel2, Caroline Tracy Shaw3, Thomas Adams4, Valerie J Loeb5, Danielle Moore1 and Shannon Leah Riley6, (1)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (2)University of South Florida St. Petersburg, St Petersburg, FL, United States, (3)University of South Florida, College of Marine Science, St Petersburg, FL, United States, (4)Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States, (5)Moss Landing Marine Laboratories, Moss Landing, CA, United States, (6)Oregon State University, Corvallis, OR, United States
Shannon Leah Riley1, Dawn Outram2, Danielle Moore2, Thomas Adams3 and Karen Wishner2, (1)Oregon State University, Corvallis, OR, United States, (2)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (3)Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
Milan Cankovic1, Gavin Collins2, Ines Petrić1, Irena Ciglenečki1 and Estefania Porca2, (1)Ruder Boskovic Institute, Division for Marine and Environmental Research, Zagreb, Croatia, (2)NUI Galway, School of Natural Sciences, Microbiology, Galway, Ireland
Justin Leonard Penn1, Curtis A. Deutsch1, Jonathan Payne2 and Erik A Sperling2, (1)University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, (2)Stanford University, Geological Sciences, Stanford, CA, United States
Kate Hewett, University of California Davis, Bodega Marine Lab, Bodega Bay, CA, United States and John L Largier, University of California Davis, Coastal & Marine Sciences Institute, Davis, CA, United States
Andreas Oschlies, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Wolfgang Koeve, GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemical Modeling, Kiel, Germany
Catherine V Davis, University of South Carolina Columbia, School of the Earth, Ocean and Environment, Columbia, SC, United States, Emily Osborne, NOAA Climate Program Office, Silver Spring, MD, United States and Robert Thunell, Univ South Carolina, Columbia, SC, United States
Allanah Paul, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Lennart Thomas Bach, GEOMAR Helmholtz Centre for Ocean Research Kiel, Biological Oceanography, Kiel, Germany, Nauzet Hernández, Instituto de Oceanografía y Cambio Global, Universidad de Las Palmas de Gran Canaria, Spain, Laura Ramajo, Department of Sciences, Faculty of Liberal Arts, Universidad Adolfo Ibáñez, Santiago, Chile, Kristian Spilling, Finnish Environment Institute, Marine Research Centre, Helsinki, Finland, Elisabeth von der Esch, GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany and Ulf Riebesell, GEOMAR, Kiel, Germany
Takamitsu Ito, Georgia Institute of Technology, Atlanta, GA, United States and Anh Pham, Georgia Institute of Technology Main Campus, School of Earth and Atmospheric Sciences, Atlanta, GA, United States
Caroline Tracy Shaw1, Karen Wishner2, Dawn Outram2, Chris Roman2, Allison Smith-Mislan3 and Brad Seibel4, (1)University of South Florida, College of Marine Science, St Petersburg, FL, United States, (2)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (3)University of Washington, School of Oceanography, Seattle, WA, United States, (4)University of South Florida St. Petersburg, St Petersburg, FL, United States
Sunke Schmidtko1, Andreas Oschlies1, Wolfgang Koeve2 and Julia Getzlaff1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemical Modeling, Kiel, Germany
J Michael Beman, University of California Merced, Merced, CA, United States
Bastien Yves Queste, University of East Anglia, Centre for Ocean and Atmospheric Sciences, Norwich, United Kingdom, Clement Vic, University of Southampton, Southampton, United Kingdom, Karen J. Heywood, University of East Anglia, Norwich, NR4, United Kingdom and Sergey Piontkovski, Sultan Qaboos University, Department of Marine Science and Fisheries, Muscat, Oman
Allison Smith-Mislan1, Curtis A. Deutsch1, Brad Seibel2, Tracy Shaw3, Chris Roman4 and Karen Wishner4, (1)University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, (2)University of South Florida St. Petersburg, St Petersburg, FL, United States, (3)University of South Florida St. Petersburg, FL, United States, (4)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Evan Howard1, Justin Leonard Penn2, Harmut Frenzel1, Faycal Kessouri3, James C McWilliams4 and Curtis A. Deutsch5, (1)University of Washington, Oceanography, Seattle, WA, United States, (2)University of Washington Seattle Campus, Seattle, WA, United States, (3)Southern California Coastal Water Research Project, Biogeochemistry, Costa Mesa, CA, United States, (4)UCLA, Los Angeles, CA, United States, (5)University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States