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Session 8. Trend and impacts of de-oxygenation in oceanic and coastal ecosystems

Frank Whitney (Canada)
Evgeniy Yakushev (Norwegian Institute for Water Research, Norway/Russia)

Invited Speakers:
Steven Bograd (Southwest Fisheries Science Center, NOAA-Fisheries, USA)
Felix Janssen (Max-Planck Institute for Marine Microbiology, Germany)

Modifications to ocean circulation due to global warming are being observed broadly throughout our oceans. Surface warming of our planet reduces oxygen solubility in seawater, increases mixed layer buoyancy and reduces ice formation in important ventilation areas. All of these processes lead to a reduction in oxygen transport to the interior waters of major ocean basins and coastal seas. As a transition zone between the continents and the ocean, coastal waters are natural susceptibility to oxygen-deficiency and anoxia due to both the input of low density coastal water and topographic restrictions which can increase the residence time of bottom waters.

Oxygen depletion inevitably leads to biological impacts ranging from altered microbial activity (e.g., enhanced de-nitrification, N2O production or sulfate reduction) to whole community displacements (loss of fisheries, invasions of displaced species into new habitat) which are poorly understood. As well, oxygen losses in the interior ocean are accompanied by increased acidity as carbon dioxide levels rise. These two trends may have synergistic impacts on biota. Contributions across these diverse topics, as well as on expansions of coastal dead zones caused by non-climate related change, are invited.

Thursday, May 17
Felix Janssen, Christoph Waldmann, Antje Boetius and the HYPOX project team
Oxygen observation activities within the FP7 EU-project HYPOX: A step towards hypoxia monitoring in a rapidly changing world (S8-8094), Invited
[pdf, 1.7 Mb]
Evgeniy Yakushev
Oxygen depletion events in the European Seas: Observations and modelling (S8-8043)
[pdf, 2.9 Mb]
Pavel Tishchenko, Vyacheslav Lobanov, Tatyana Mikhajlik, Pavel Semkin, Alexander Sergeev, Petr Tishchenko and Vladimir Zvalinsky
Seasonal hypoxia of the Amurskiy Bay (Japan/East Sea)
[pdf, 2.7 Mb]
Young Jae Ro, Baek Jin Kim, Kwang Young Jung and Kwang Soon Park
Two case studies for hypoxia in Korean coastal waters (S8-8193)
[pdf, 1.5 Mb]
Meng Xia
The effect of climate change on a Gulf estuary plume and its hypoxia variation (S8-7927)
[waiting for permission]
Dmitry D. Kaplunenko, Vyacheslav B. Lobanov, Pavel Tishchenko and Maria A. Shvetsova
Vertical structure of dissolved oxygen and nitrate in situ profiles in the North-East Asian Marginal Seas (S8-8246)
[pdf, 1.7 Mb]
Jinhui Wang and Yanqin Wu
The historical status and impacts of hypoxia in Changjiang estuary (S8-8044)
[waiting for permission]
K. Allison Smith, John P. Dunne, Brendan R. Carter, and Jorge L. Sarmiento
Predicting future habitat changes above oxygen minimum zones (S8-8175)
(permission to post denied, contact presenter)
Frank A. Whitney, Steven J. Bograd and Tsuneo Ono
Implications of subsurface nutrient increases in the subarctic Pacific Ocean (S8-8010), Invited
[pdf, 0.7 Mb]
Frank A. Whitney, Vaughn Barrie, Kim Conway and Bill Crawford
Oxygen sinks and sources along the coast of British Columbia, Canada (S8-7974)
[pdf, 1.3 Mb]
John A. Barth, Stephen D. Pierce and Francis Chan
Hypoxia over the continental shelf in the Northeast Pacific ocean (S8-8069)
[pdf, 2 Mb]
J. Anthony Koslow, Peter Davison, Ana Lara-Lopez, Amanda Netburn and Noelle Bowlin
The influence of declining oxygen concentrations and mesopelagic fish biomass on ecosystem structure and carbon export in the California Current (S8-8173)
[pdf, 1 Mb]
Anand Gnanadesikan, Daniele Bianchi, Irina Marinov, Jaime Palter and Marie-Aude Pradal
Understanding the connection between ocean circulation and open-ocean oxygen levels (S8-8218)
[pdf, 0.6 Mb]
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    Important Dates
    August 1 , 2011
  • Abstract submission opens
  • Financial support application opens
  • Registration opens
    September 15 , 2011
  • Deadline for submissions of proposals and workshops
    September 30 , 2011
  • Workshop acceptance notification
    January 13 , 2012
  • Abstract submission deadline (extended)
  • Financial support application deadline (extended)
  • Early registration deadline (extended)
    February 6 , 2012
  • Abstract acceptance notification
  • Financial support grant notification
    May 14-20 , 2012
  • Symposium and associated workshops
    June 15 , 2012
  • Manuscript submission deadline
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