Home > Coastal Change > Ocean Acidification

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Projects

Can Meadows of Underwater Grasses Help Mitigate th...

Ocean acidification (OA) in the natural environment co-occurs with other stressors, such as temperature and low oxygen, creating complex ecological interactions that are difficult to manage in restoration and aquaculture ...
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Can Oyster Aquaculture in the Chesapeake Bay Flour...

We are supporting research that will explore how the Eastern oyster will grow and survive under future environmental conditions and determine if there are environmental or economic thresholds (“tipping points”) ...
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Developing a Northeast Regional Model of Ocean and...

We will expand an existing regional model to include the carbonate chemistry that determines coastal acidification. The model will allow predictions and forecasts of acidification conditions to help in developing ...
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Explaining Acidification and Nutrient Pollution in...

We are supporting research that will define relationships between estuarine acidification and other stressors (i.e., reduced freshwater inflow, low oxygen, and nutrient loading) in Texas coastal bays. This information will ...
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How will Climate Change Affect Harmful Algal Speci...

We are supporting research that will determine how future increases in temperature increases and ocean acidity will affect harmful algal bloom species (HABs) and their grazers. Light micrograph of Karlodinium ...
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Informing Adaptation Decisions for Alaska’s Salmon...

We are integrating multiple areas of research on the impacts of ocean acidification (OA) and the influence of “tipping points” (i.e., regime shifts) on Alaska’s fisheries, particularly chum salmon in ...
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Interactions between Ocean Acidification and Eutro...

We are supporting research that will determine the current state of acidification in Chesapeake Bay waters and identify areas in the bay that are most and least prone to acidification ...
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Modeling Ocean Acidification in the Coastal Zone

Adding carbon dioxide (CO2) to seawater raises the acidity of seawater, which can adversely affect marine life and fisheries. Coastal waters receive both atmospheric CO2 and CO2 from water pollution, ...
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Ocean Acidification in the California Current: Pre...

We are supporting the development of a management model to predict impacts of ocean acidification on food webs and the fishing economy in the California Current. The model will project ...
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Ocean Acidification: Understanding Changing Chemis...

Ocean acidification is a problem created by the increasing levels of carbon dioxide in our atmosphere, and it is harmful to certain plankton, shellfish, coral, and marine plants. We have ...
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News

Researchers Project Fate of Scallop Fishery Under ...

NCCOS-funded researchers have published a paper that describes possible futures of the New England scallop fishery under a suite of climate, economic, biological, and management scenarios. The study highlights the ...
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$11.75M Awarded for Ocean Acidification, Coral Eco...

NOAA’s National Centers for Coastal Ocean Science (NCCOS) are pleased to announce a total of $4.37 million in funding for 16 new research awards in Fiscal Year 2018, with an ...
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NCCOS Supports Research Expedition in Gray’s Reef ...

Scientists place coral on plates adjacent to carbon dioxide sensors to study ocean acidification in Gray's Reef National Marine Sanctuary, 2018. Credit: NOAA. Earlier this month, NCCOS staff provided diving ...
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‘Acidification’ Causes Crumbling of De...

A new study shows that deep-sea coral communities living in acidified waters are weaker and more likely to crumble than the same corals living in less acidic conditions. Under normal ...
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Model Shows Ocean Acidification Could Outweigh Fis...

A new study, supported by NCCOS and the NOAA Ocean Acidification Program, examined a variety of marine ecosystems from the tropics to the arctic under different environmental conditions and management practices ...
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Ocean Acidification Funding Announcement Released ...

The NOAA Ocean Acidification Program and the NOAANational Centers for Coastal Ocean Sciencehave released a new competitive grants announcement for availability of grant funds for Fiscal Year 2012. An announcement ...
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Products

Maps, Tools & Applications

The NCCOS Geoportal is an online data explorer providing discovery and access to the full catalogue of NCCOS-funded scientific data, including archived data accessions, metadata records, and web services. To discover data, enter a word or phrase in the text box and click on “Search” to conduct a free text search; refine your search using additional options for content type, date, region, and spatial extent. Click on “Browse” to explore the catalogue using topical keywords. Launch the “Map Viewer” to visualise geospatial data (GIS layers) served via mapping web services.
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Data & Publications

A guinea pig’s tale: learning to review end-to-end marine ecosystem models for management applications

A shift towards ecosystem-based management in recent decades has led to new analytical tools such as end-to-end marine ecosystem models. End-to-end models are complex and typically simulate full ecosystems from oceanography to foodwebs and fisheries, operate on a spatial framework, ...
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A quantitative genetic approach to assess the evolutionary potential of a coastal marine fish to ocean acidification

Assessing the potential of marine organisms to adapt genetically to increasing oceanic CO2 levels requires proxies such as heritability of fitness-related traits under ocean acidification (OA). We applied a quantitative genetic method to derive the first heritability estimate of survival ...
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Coastal ocean acidification: The other eutrophication problem

Increased nutrient loading into estuaries causes the accumulation of algal biomass, and microbial degradation of this organic matter decreases oxygen levels and contributes towards hypoxia. A second, often overlooked consequence of microbial degradation of organic matter is the production of ...
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Cruise Report for Patterns in Deep-Sea Corals Expedition 2016: NOAA ship Shearwater SW-16-08

The 2016 Patterns in Deep-Sea Corals expedition set out aboard the NOAA Ship Shearwater in August to study the distribution, ecology, and health of deep-water (30-300 m) gorgonian corals in response to the 2015 El Niño event. The research team ...
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Cruise Report for Patterns in Deep-Sea Corals Expedition: NOAA ship Bell M. Shimada SH-15-03

Less than 50% of the Channel Islands National Marine Sanctuary seafloor has been mapped using multibeam echosounders to produce habitat characterizations at a map resolution suitable for resource management. This is important because deep-sea coral and sponge communities are known ...
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Diurnal Fluctuations in Acidification and Hypoxia Reduce Growth and Survival of Larval and Juvenile Bay Scallops (Argopecten irradians) and Hard Clams (Mercenaria mercenaria)

Diurnal variations in pH and dissolved oxygen (DO) concentrations are common seasonal phenomena in many eutrophic estuaries, yet few studies have investigated the concurrent effects of low pH and low DO on marine organisms inhabiting these coastal systems. Here, we ...
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Diurnal fluctuations in CO2 and dissolved oxygen concentrations do not provide a refuge from hypoxia and acidification for early-life-stage bivalves

This study assessed the effects of constant and diurnally fluctuating acidification and hypoxia on the survival, growth, and development of larval stages of 3 bivalves indigenous to the east coast of North America: bay scallops Argopecten irradians, hard clams Mercenaria ...
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Effect of hydrological variability on the biogeochemistry of estuaries across a regional climatic gradient

Given projected changes in river flow to coastal regions worldwide due to climate change and increasing human freshwater demands, it is necessary to determine the role hydrology plays in regulating the biogeochemistry of estuaries. A climatic gradient exists along the ...
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Estimates of the Direct Effect of Seawater pH on the Survival Rate of Species Groups in the California Current Ecosystem

Ocean acidification (OA) has the potential to restructure ecosystems due to variation in species sensitivity to the projected changes in ocean carbon chemistry. Ecological models can be forced with scenarios of OA to help scientists, managers, and other stakeholders understand ...
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Exceptionally high organic nitrogen concentrations in a semi-arid South Texas estuary susceptible to brown tide blooms

Studies of estuarine eutrophication have tended to focus on systems with continually flowing rivers, while little is known about estuaries from semi-arid/arid regions. Here we report results from an assessment of water quality conditions in Baffin Bay, Texas, a shallow ...
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General Pages

Coastal Change

Coastal ChangeVulnerability, Mitigation, and RestorationVulnerability and Risk AssessmentCoastal decision makers need to understand the risks and vulnerabilities facing their communities and ecosystems in order to help them become resilient. Coastal ...
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NOAA Internship Opportunities

Analysis of Ocean Acidification and Co-stressor Ef...

This project evaluates the potential effects of ocean acidification and other environmental co-stressors on fish populations. The effects on fish of an increased level of ocean acidification –another consequence of ...
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Ocean Acidification Effects on the Eastern Oyster,...

This project evaluates effects of ocean acidification on three bivalve species of economic importance the eastern oyster, surf clams, and sea scallops. Through laboratory experiments and models, we will assess ...
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NCCOS delivers ecosystem science solutions for stewardship of the nation’s ocean and coastal resources, in direct support of NOS priorities, offices, and customers, and to sustain thriving coastal communities and economies.

National Centers for Coastal Ocean Science
1305 East West Highway, Rm 8110
Silver Spring, MD 20910
Phone: (240) 533-0300 / Fax: (301) 713-4353
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