FISH
SHELLFISH
PLANKTON

 

Biological Response

NOAA's Ocean Acidification Program supports research that focuses on economically and ecologically important marine species. Research of survival, growth, and physiology of marine organisms can be used to explore how aquaculture, wild fisheries, and food webs may change as ocean chemistry changes.


FISHERIES SCIENCE CENTERS

A number of NOAA National Marine Fisheries Service Science Centers have state-of-the-art experimental facilities to study the response of marine organisms to the chemistry conditions expected with ocean acidification.

The Northeast Fisheries Science Center has facilities at its Sandy Hook, NJ and Milford, CT laboratories; the Alaska Fisheries Science Centers at its Newport, OR and Kodiak, AK laboratories; and the Northwest Fisheries Science Center at its Mukilteo and Manchester, WA laboratories. All facilities can tightly control carbon dioxide and temperature. The Northwest Fisheries Science Center can also control oxygen, and can create variable treatment conditions for carbon dioxide, temperature, and oxygen. These facilities include equipment for seawater carbon chemistry analysis, and all use standard operating procedures for analyzing carbonate chemistry to identify the treatment conditions used in experiments.

 


Corals

Both deep sea and shallow reef-building corals have calcium carbonate skeletons.  As our oceans become more acidic, carbonate ions, which are an important part of calcium carbonate structures, such as these coral skeletons, become relatively less abundant. Decreases in seawater carbonate ion concentration can make building and maintaining calcium carbonate structures difficult for calcifying marine organisms such as coral.

 


Fish

Increased levels of carbon dioxide in our ocean can have a wide variety of impacts on fish, including altering behavior, otolith (a fish's ear bone) formation, and young fish's growth. Find out more about what scientists are learning about ocean acidification impacts on fish like rockfish, scup, summer flounder, and walleye pollock.


Shellfish

Shellfish, such as oyster, clams, crabs and scallop, provide food for marine life and for people, too. Shellfish make their shells or carapaces from calcium carbonate, which contains carbonate ion as a building block. The decreases in seawater carbonate ion concentration expected with ocean acidification can make building and maintaining calcium carbonate structures difficult for calcifying marine organisms like shellfish. This may impact their survival, growth, and physiology, and, thus, the food webs and economies that depend on them.


Plankton

Plankton are tiny plants and animals that many marine organisms, ranging from salmon to whales, rely on for nutrition. Some plankton have calcium carbonate structures, which are built from carbonate ions. Carbonate ions become relatively less abundant as the oceans become more acidic. Decreases in seawater carbonate ions can make building and maintaining shells and other calcium carbonate structures difficult for calcifying marine organisms such as plankton. Changes to the survival, growth, and physiology of plankton can have impacts throughout the food web.


OAP SUPPORTED BIOLOGICAL RESPONSE PROJECTS

Assess, anticipate, adapt: Vulnerability and Responses to Ocean Acidification

Assess, anticipate, adapt: Vulnerability and Responses to Ocean Acidification

NOAA Ocean Acidification Program

There are areas in the United States where marine resources and the communities and industries that depend on them are particularly vulnerable to the impacts of ocean acidification. In three US regions, our understanding of vulnerability is being advanced by coupling ocean and social science data to equip communities and industries with the information needed to evaluate, anticipate, and adapt to ocean acidification.
Thursday, March 15, 2018
Corals use creative chemical balancing to combat destructive impacts of acidifying oceans

Corals use creative chemical balancing to combat destructive impacts of acidifying oceans

ARC CoE Coral Reef Studies

Some species of coral may be better adapted to respond to ocean acidification, according to research published in Proceedings of the Royal Society.

Thursday, December 7, 2017
Categories: OA News

North Pacific Research Board's Request For Proposals Includes Ocean Acidification as a Research Priority

North Pacific Research Board 2018 RFP

The North Pacific Research Board (NPRB) announces the release of its Core Program Request for Proposals (RFP). The 2018 RFP has an anticipated funding amount of $4.45 million. The North Pacific Research Board specifically lists ocean acidification as a topic of interest for proposed projects. 


Thursday, October 12, 2017
Ocean Acidification: Building a Path Toward Adaptation in the Arctic

Ocean Acidification: Building a Path Toward Adaptation in the Arctic

NOAA Ocean Acidification Program

Scientists, economists, and stakeholders from all eight Arctic countries forge a path forward in adapting to ocean acidification in the Arctic

Arctic waters are rapidly changing. In the coming decades, these high-latitude waters will undergo significant shifts that could affect fish, shellfish, marine mammals, along with the livelihoods and well-being of communities dependent on these resources.

Wednesday, February 8, 2017
New Tool Helps Oyster Growers Prepare for Changing Ocean Chemistry

New Tool Helps Oyster Growers Prepare for Changing Ocean Chemistry

NOAA Research, Laura Newcomb

For Bill Mook, coastal acidification is one thing his oyster hatchery cannot afford to ignore. Mook Sea Farm depends on seawater from the Gulf of Maine pumped into a Quonset hut-style building where tiny oysters are grown in tanks. Mook sells these tiny oysters to other oyster farmers or transfers them to his oyster farm on the Damariscotta River where they grow large enough to sell to restaurants and markets on the East Coast.

Thursday, January 26, 2017
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