Sessions on ocean acidification at the 2014 Ocean Sciences Meeting, 23-28 February, Honolulu, Hawaii

There are three sessions on ocean acidification at the 2014 Ocean Sciences Meeting in Honolulu, Hawaii.

021 – Ocean Acidification and Coral Reefs: The Importance of Cooperative Research and the Integrated Ocean Observing System (IOOS)

The effect of ocean acidification (OA) on coral reef ecosystems is a great concern as increased atmospheric CO2 causes lowered seawater pH. As reefs begin to calcify less and carbonate minerals dissolve more under increased OA, adverse impacts are anticipated to these valuable ecosystems upon which marine organisms and humans depend. Most OA work on coral reefs has examined the response of calcifiers to lower pH, with little research done on the “reverse problem” carbonate mineral dissolution. Moreover, the tools necessary to provide the comprehensive framework required to understand how coral reefs respond to OA have not been in place until recently. It is critical to understand how the interplay between biogeochemistry and physical forcing affects the CO2-carbonic acid parameters and balance between calcification and dissolution. With recent initiation of high-temporal resolution and synoptic spatial studies of coral reef systems through cooperative research initiatives, e.g., between the NOAA/PMEL Carbon Program, NOAA/CRMRP and IOOS, there is a greater ability to understand the response of coral reefs to OA. We invite contributions from colleagues involved in studies of calcification-dissolution, bio-erosion and other biological monitoring that benefited from a holistic approach using both field instrumentation and more traditional approaches.


Adrienne Sutton , NOAA Joint Institute for the Study of the Atmosphere and Ocean at the University of Washington

Dwight K. Gledhill , NOAA Ocean Acidification Program

Eric H. De Carlo , University of Hawaii at Manoa

Michael S. Tomlinson , University of Hawaii at Manoa

033 – Ocean Acidification in Coastal Environments

Anthropogenic emissions of CO2 are driving rapid changes in ocean carbon chemistry, including declines in pH and carbonate saturation states. In estuaries and coastal environments, ocean acidification (OA) is occurring in the context of other natural biogeochemical and anthropogenic processes that may accentuate or mitigate the magnitude and impacts of OA. Understanding of how OA is progressing in these environments is critical to managing coastal resources in a changing world. Because oceanic carbon chemistry changes can only be stabilized over centennial time- scales, identifying processes that can be managed to ameliorate the present and future impacts of OA will be particularly important. Creative interdisciplinary research is needed to examine the role of ocean acidification in coastal and estuarine ecosystems already altered by other biogeochemical processes. This session seeks to showcase research that explores ocean acidification patterns and impacts on coastal and estuarine ecosystems. Submissions with a focus on biological, chemical, geological observations, or modeling aspects of OA along the continental margins are welcome. We particularly encourage submissions that address interactions between OA and other stressors, such as eutrophication, hypoxia, climate change, and pollution.


Jeremy T. Mathis , NOAA – PMEL

Richard A. Feely , NOAA – PMEL

173 – New conceptual and experimental approaches to investigate the effects of multiple environmental drivers on ocean biota

Environmental changes affects multiple drivers of ocean biota, including warming and acidification, expanding hypoxia, altered salinity, nutrient supply and irradiance. These drivers can act individually, but also interactively, including synergistic (amplified) or antagonistic (diminished) effects. Providing reliable and useful projections of future responses of marine organisms and communities to such complex environmental change requires improvements in existing conceptual and experimental approaches. Better conceptual models will increase our understanding of the interplay of environmental drivers and help the community to meet the challenge of the increasing complexity of experimental designs. The design of such manipulations must also incorporate the ability to extend experiments to community-level investigations performed for long duration. We welcome abstracts focused on new experimental and conceptual approaches to investigate the impact of multiple environmental drivers on ocean biota, from subcellular to ecosystem-level experimentation and modelling.


David Hutchins , University of Southern California

Jean-Pierre Gattuso , Laboratoire d’Oceanographie de Villefranche

Philip Boyd , Institute of Marine and Antarctic Studies, Univ. ot Tasmania, Australia

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OA-ICC Highlights

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