OC24A:
Ocean Deoxygenation: Impacts and Predictions II Posters


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
Moderators:  Curtis A. Deutsch, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, Karen Wishner, University of Rhode Island Narragansett Bay, Narragansett, RI, United States and Sunke Schmidtko, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Student Paper Review Liaison:  Karen Wishner, University of Rhode Island Narragansett Bay, Narragansett, RI, 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
  • OM - Ocean Modeling
  • PL - Physical Oceanography: Mesoscale and Larger

Abstracts Submitted to this Session:

Multi-Millenial Consequences of 1.5 to 3oC Warming Targets for Oceanic Oxygen (306248)
Fortunat Joos and Gianna Battaglia, University of Bern, Climate and Environmental Physics, Bern, Switzerland
Hypoxia in the Gulf of Farallones and Cordell Bank (California) (315473)
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
Anoxia in the Eutrophic Cochin Estuary (Southwest Coast of India) (312274)
Martin G D, Cochin, India
Interactions of Euphausiid Distributions in the Eastern Tropical North Pacific with the Oxygen Minimum Zone (313529)
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
BENEATH THE OXIA: Insight into the prokariotes of marine meromictic Rogoznica lake (Croatia) and their potential in elemental cycling (313664)
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

See more of: Ocean Change: Acidification and Hypoxia