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NOAA’s Ocean Acidification Program Research Region

Region: Pacific Islands and Tropics

Related Posts

See news related to this Research Region

A mapped dataset of surface ocean acidification indicators in large marine ecosystems of the United States

Mapped monthly data products of surface ocean acidification indicators from 1998 to 2022 on a 0.25° by 0.25° spatial grid have been developed for eleven U.S. large marine ecosystems (LMEs). The data products were constructed using observations from the Surface Ocean CO2 Atlas, co-located surface ocean properties, and two types of machine learning algorithms: Gaussian mixture

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July 10, 2024

Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands

The U.S. Pacific Islands span a dramatic natural gradient in climate and oceanographic conditions, and benthic community states vary significantly across the region’s coral reefs. Here we leverage a decade of integrated ecosystem monitoring data from American Samoa, the Mariana Archipelago, the main and Northwestern Hawaiian Islands, and the U.S. Pacific Remote Island Areas to

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June 28, 2024

Advancing best practices for assessing trends of ocean acidification time series

Assessing the status of ocean acidification across ocean and coastal waters requires standardized procedures at all levels of data collection, dissemination, and analysis. Standardized procedures for assuring quality and accessibility of ocean carbonate chemistry data are largely established, but a common set of best practices for ocean acidification trend analysis is needed to enable global

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June 28, 2024

Quantifying Net Community Production and Calcification at Station ALOHA Near Hawai’i: Insights and Limitations From a Dual Tracer Carbon Budget Approach

A budget approach is used to disentangle drivers of the seasonal mixed layer carbon cycle at Station ALOHA (A Long-term Oligotrophic Habitat Assessment) in the North Pacific Subtropical Gyre (NPSG). The budget utilizes data from the WHOTS (Woods Hole—Hawaii Ocean Time-series Site) mooring, and the ship-based Hawai’i Ocean Time-series (HOT) in the NPSG, a region

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June 27, 2024

Upwelling and the persistence of coral-reef frameworks in the eastern tropical Pacific

In an era of global change, the fate and form of reef habitats will depend on shifting assemblages of organisms and their responses to multiple stressors. Multiphyletic assemblages of calcifying and bioeroding species contribute to a dynamic balance between constructive and erosive processes, and reef-framework growth occurs only when calcium-carbonate deposition exceeds erosion. Each contributing

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June 26, 2024

Linear extension, skeletal density, and calcification rates of the blue coral <em>Heliopora coerulea</em>

The brooding reef-building octocoral Heliopora is widespread on Indo-West Pacific reefs and appears to be relatively resistant to thermal stress, which may enable it to persist locally while scleractinians diminish under Anthropocene conditions. However, basic physiological measurements of “blue corals” are lacking and prevent their inclusion in trait-based studies. We address this by quantifying rates

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June 26, 2024

Implications of salinity normalization of seawater total alkalinity in coral reef metabolism studies

Salinity normalization of total alkalinity (TA) and dissolved inorganic carbon (DIC) data is commonly used to account for conservative mixing processes when inferring net metabolic modification of seawater by coral reefs. Salinity (S), TA, and DIC can be accurately and precisely measured, but salinity normalization of TA (nTA) and DIC (nDIC) can generate considerable and

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June 25, 2024

Unveiling hidden sponge biodiversity within the Hawaiian reef cryptofauna

Our perception of reef diversity is dominated by corals, fish, and a few other groups that visibly dominate the reef surface. However, the bulk of reef biodiversity resides within the reef framework, and this cryptobiota is fundamentally important for the surface community. Sponges are abundant and conspicuous on the reef surface in productive, continental reefs,

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June 24, 2024

Related Projects

See our funded projects for this Focus Area

Calm sea with mountains on horizon and expansive sky in Ketchikan, Alaska. Credit: Phil Price, Flickr
Building Capacity for Alaskan Tribes
  • PI(s): Spencer Weinstein
  • Fiscal Year Funded: 2023

Why we care:Alaskan Native communities rely on healthy marine ecosystems for work, sustenance and their way of life. Ocean acidification has documented impacts to marine life and these communities. An..

Project Summary >
Spruce Island in the Kodiak region of Alaska. Bull kelp at water's surface with island in the background. Ocean acidification monitoring in this region helps prepare Kodiak Tribes for the impacts of ocean change. Credit: NOAA
Supporting Tribal Ocean Acidification Monitoring Programs
  • PI(s): Jake Cohen
  • Fiscal Year Funded: 2023

Why we care:Alaskan Native communities rely on healthy marine ecosystems for work, sustenance and their way of life. Ocean acidification has documented impacts to marine life and these communities. Community..

Project Summary >
Fisherman pulling up sugar kelp. Seaweed cultivation may be one avenue for marine carbon dioxide removal and mitigating ocean acidification. Credit: GreenWave/Ron Gautreau.
Carbon capture and ocean acidification mitigation potential by seaweed farms in tropical and subtropical coastal environments
  • PI(s): Andreas Andersson
  • Fiscal Year Funded: 2023

Award amount: $1,451,575Duration: 3 yearsFunding agency: NOAA Ocean Acidification Program (OAP), National Oceanographic Partnership Program (NOPP) Why we care Growing seaweed in the ocean could be one way to alleviate some..

Project Summary >
Plankton bloom seen from space. Credit: NASA
Multiscale observing system simulation experiments for iron fertilization in the Southern Ocean, Equatorial Pacific, and Northeast Pacific
  • PI(s): Dennis McGillicuddy
  • Fiscal Year Funded: 2023

Why we care Iron is a critical limiting nutrient for phytoplankton in the ocean. Iron fertilization adds this limiting nutrient to promote phytoplankton blooms as a way to take up..

Project Summary >
Breaking wave in sunlight. Credit: NOAA Ocean Service
Electrolysis-driven weathering of basic minerals for long-term ocean buffering and CO2 reduction
  • PI(s): Burke Hales
  • Fiscal Year Funded: 2023

Why we care Ocean alkalinity enhancement has the potential to capture carbon and mitigate ocean acidification. While ocean alkalinity enhancement is a promising approach for removing carbon from the atmosphere,..

Project Summary >
Terrestrial liming at golf courses serve as testbeds for this method for carbon capture and mitigating acidification. Credit: Your Golf Travel (Creative Commons)
An opportunity to study Ocean Alkalinity Enhancement, carbon dioxide removal, and ecosystem impacts through coastal liming
  • PI(s): Jaime Palter
  • Fiscal Year Funded: 2023

Why we care Terrestrial liming, or the addition of a basic (alkaline) material like calcium carbonate to crops and lawns is a common agricultural soil treatment. When applied on land..

Project Summary >

Related Publications

See publications produced by our funded projects for this Focus Area

Climatological distribution of ocean acidification variables along the North American ocean margins
  • Li-Qing Jiang, Tim P. Boyer, Christopher R. Paver, Hyelim Yoo, James R. Reagan, Simone R. Alin, Leticia Barbero, Brendan R. Carter, Richard A. Feely, and Rik Wanninkhof
  • Earth System Science Data
  • July 24, 2024
Citation: Jiang, L.-Q., Boyer, T. P., Paver, C. R., Yoo, H., Reagan, J. R., Alin, S. R., Barbero, L., Carter, B. R., Feely, R. A., and Wanninkhof, R.: Climatological distribution of ocean acidification variables along the North American ocean margins, Earth Syst. Sci. Data, 16, 3383–3390, https://doi.org/10.5194/essd-16-3383-2024, 2024.
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Fish or not fish—fisheries participation and harvest diversification under economic and ecological change
  • Tobias Schwoerer a 1, Kevin Berry b 2, Darcy G. Dugan c, David C. Finnoff d 3, Molly Mayo, Jan Ohlberger, Eric J. Ward
  • Marine Policy
  • June 3, 2024
Citation: Tobias Schwoerer, Kevin Berry, Darcy G. Dugan, David C. Finnoff, Molly Mayo, Jan Ohlberger, Eric J. Ward, Fish or not fish—fisheries participation and harvest diversification under economic and ecological change, Marine Policy, Volume 157, 2023, 105833, ISSN 0308-597X, https://doi.org/10.1016/j.marpol.2023.105833.
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A mapped dataset of surface ocean acidification indicators in large marine ecosystems of the United States
  • Jonathan D. Sharp, Li-Qing Jiang, Brendan R. Carter, Paige D. Lavin, Hyelim Yoo & Scott L. Cross
  • Scientific Data
  • July 2, 2024
Citation: Sharp, J.D., Jiang, LQ., Carter, B.R. et al. A mapped dataset of surface ocean acidification indicators in large marine ecosystems of the United States. Sci Data 11, 715 (2024). https://doi.org/10.1038/s41597-024-03530-7
Read Summary >
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ADAPTING TO OCEAN ACIDIFICATION

The NOAA Ocean Acidification Program (OAP) works to prepare society to adapt to the consequences of ocean acidification and conserve marine ecosystems as acidification occurs. Learn more about the human connections and adaptation strategies from these efforts.

Adaptation approaches fostered by the OAP include:

FORECASTING

Using models and research to understand the sensitivity of organisms and ecosystems to ocean acidification to make predictions about the future, allowing communities and industries to prepare

MANAGEMENT

Using these models and predictions as tools to facilitate management strategies that will protect marine resources and communities from future changes

TECHNOLOGY DEVELOPMENT

Developing innovative tools to help monitor ocean acidification and mitigate changing ocean chemistry locally

REDUCING OUR CARBON FOOTPRINT

50 more ways to reduce your carbon footprint >

On the Road

Drive fuel-efficient vehicles or choose public transportation. Choose your bike or walk! Don't sit idle for more than 30 seconds. Keep your tires properly inflated.

With your Food Choices

Eat local- this helps cut down on production and transport! Reduce your meat and dairy. Compost to avoid food waste ending up in the landfill

With your Food Choices

Make energy-efficient choices for your appliances and lighting. Heat and cool efficiently! Change your air filters and program your thermostat, seal and insulate your home, and support clean energy sources

By Reducing Coastal Acidification

Reduce your use of fertilizers, Improve sewage treatment and run off, and Protect and restore coastal habitats

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TAKE ACTION WITH YOUR COMMUNITY

You've taken the first step to learn more about ocean acidification - why not spread this knowledge to your community?

Every community has their unique culture, economy and ecology and what’s at stake from ocean acidification may be different depending on where you live.  As a community member, you can take a larger role in educating the public about ocean acidification. Creating awareness is the first step to taking action.  As communities gain traction, neighboring regions that share marine resources can build larger coalitions to address ocean acidification.  Here are some ideas to get started:

  1. Work with informal educators, such as aquarium outreach programs and local non-profits, to teach the public about ocean acidification. Visit our Education & Outreach page to find the newest tools!
  2. Participate in habitat restoration efforts to restore habitats that help mitigate the effects of coastal acidification
  3. Facilitate conversations with local businesses that might be affected by ocean acidification, building a plan for the future.
  4. Partner with local community efforts to mitigate the driver behind ocean acidification  – excess CO2 – such as community supported agriculture, bike & car shares and other public transportation options.
  5. Contact your regional Coastal Acidification Network (CAN) to learn how OA is affecting your region and more ideas about how you can get involved in your community
       More for Taking Community Action