OC11A:
Spatial and Temporal Variability of Seawater Chemistry in Coastal Ecosystems in the Context of Global Change I


Session ID#: 37161

Session Description:
Coastal systems provide a range of goods and services that are under threat from anthropogenic stressors such as ocean acidification, deoxygenation, and eutrophication. Accurately projecting future chemical conditions in these socioeconomically important regions remains difficult due to natural spatiotemporal variability in seawater chemistry. In coastal regions, complex processes including terrestrial-based riverine and groundwater inputs, intense benthic and pelagic metabolism, and air-sea gas exchange act in combination with physical processes affecting mixing, water column depth, and local residence times. These biogeochemical and physical processes interact over timescales of minutes to years and on spatial scales from millimeters to kilometers to drive variability in seawater chemistry. The complex, local drivers of seawater chemistry in coastal systems make it increasingly difficult to predict how seawater chemistry will change due to anthropogenic changes on a global scale. Importantly, certain oceanographic areas and ecosystems could act as de-oxygenation and acidification refuges by elevating DO and pH relative to source or surrounding waters. For this session we invite contributions seeking to understand temporal and spatial variability of seawater chemistry in coastal systems in the context of global climate change. We also welcome submissions that highlight the effects of seawater chemistry variability on marine organisms and ecosystems.
Primary Chair:  Tyler Cyronak, Scripps Institution of Oceanography, La Jolla, CA, United States
Co-chairs:  Iris Eline Hendriks1,2, Yui Takeshita3 and Andrea J Fassbender3, (1)University of the Balearic Islands, Biology, Palma, Spain(2)IMEDEA (CSIC-UIB), Mediterranean Institute for Advanced Studies, Department of Global Change Research, 07190, Esporles, Spain(3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
Moderators:  Tyler Cyronak, Scripps Institution of Oceanography, La Jolla, CA, United States, Iris Eline Hendriks, IMEDEA (CSIC-UIB), Mediterranean Institute for Advanced Studies, Department of Global Change Research, 07190, Esporles, Spain and Raquel Vaquer-Sunyer, IMEDEA (CSIC-UIB), Institut Mediterrani d’Estudis Avançats, Department of Global Change Research, Esporles, Spain
Student Paper Review Liaisons:  Tyler Cyronak, Scripps Institution of Oceanography, La Jolla, CA, United States and Iris Eline Hendriks, IMEDEA (CSIC-UIB), Mediterranean Institute for Advanced Studies, Department of Global Change Research, 07190, Esporles, Spain
Index Terms:

1637 Regional climate change [GLOBAL CHANGE]
4217 Coastal processes [OCEANOGRAPHY: GENERAL]
4271 Physical and chemical properties of seawater [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • CD - Coastal Dynamics
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

Expected limits on the ocean acidification buffering potential of a temperate seagrass meadow (304600)
David Koweek, Carnegie Institution for Science, Department of Global Ecology, Stanford, CA, United States, Richard Carl Zimmerman, Old Dominion University, Ocean, Earth, & Atmospheric Science, Norfolk, VA, United States, Kate Hewett, UC Davis, Bodega Bay, CA, United States, Brian Gaylord, Bodega Marine Laboratory, University of California Davis, Bodega Bay, CA, United States, Sarah N Giddings, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States, Kerry Jean Nickols, California State University Northridge, Northridge, CA, United States; California State University Northridge, Department of Biology, Northridge, CA, United States, Jennifer L Ruesink, University of Washington, Seattle, WA, United States, John J. Stachowicz, University of California, Davis, Davis, CA, United States, Yui Takeshita, Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States and Ken Caldeira, Carnegie Institution, Stanford, CA, United States
How pH variability influences larval mussel responses to ocean acidification (316657)
Lydia Kapsenberg, University of Pierre and Marie Curie Paris VI, Paris, France, Angelica Miglioli, University of Genoa, Italy, Mark C Bitter, University of Chicago, IL, United States and Jean-Pierre Gattuso, University Pierre and Marie Curie Paris VI, Paris, France
Alternative saturation state calculations from measured calcium concentrations provide a measure of regionally-variable calcification potential (325771)
Sean Beckwith, University of South Florida, College of Marine Science, Saint Petersburg, FL, United States, Robert H Byrne, University of South Florida, Saint Petersburg, FL, United States and Pamela Hallock Muller, University of South Florida, St. Petersburg, FL, United States
Impact of Hurricane Harvey on the Carbonate Chemistry of Galveston Bay, Texas (321154)
Tacey Lynn Hicks1, Kathryn E F Shamberger1 and Cameron Henderson1,2, (1)Texas A&M University, Oceanography, College Station, TX, United States, (2)University of South Carolina, School of Earth, Ocean, and Environment, Columbia, SC, United States
Long-term alkalinity increase in the Baltic Sea buffers CO2-induced acidification (323881)
Jens Mueller, Leibniz Institute for Baltic Sea Research, Marine Chemistry, Rostock, Germany, Bernd Schneider, Baltic Sea Research Institute Warnemünde, Germany and Gregor J Rehder, Leibniz Institute for Baltic Sea Research, Department of Marine Chemistry, Rostock, Germany
Defining exposure and detecting changes in ocean acidification and hypoxia in the California Current System. (324022)
Francis Chan, Oregon State University, Department of Integrative Biology, Corvallis, OR, United States, Kristin Politano, Oregon State University, Integrative Biology, Corvallis, OR, United States, John A Barth, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Bruce A Menge, Oregon State Univ, Corvallis, OR, United States

See more of: Ocean Change: Acidification and Hypoxia