SOARCE ARCHIVE

Arctic Ocean Acidification

Arctic Ocean Acidification

Arctic Monitoring and Assessment Programme

The report by the Arctic Monitoring and Assessment Program on Arctic Ocean Acidification was recently released and identifies the risks to Arctic ecosystems, including indigenous tribes and Arctic residents.

Sunday, December 1, 2013
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How shifting ocean chemistry threatens Maine

How shifting ocean chemistry threatens Maine

Bangor Daily News

An environmental crisis is looming on the marine horizon. Ocean acidification threatens Maine’s inshore fisheries, growing aquaculture industry and the jobs that rely on them.

The culprit in this story is carbon dioxide. It’s changing the chemistry of the ocean and endangering shellfish like lobster, oysters, clams and sea urchins.

Monday, October 28, 2013
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Acidification of oceans threatens to change entire marine ecosystem

Acidification of oceans threatens to change entire marine ecosystem

Vancouver Sun

Ocean acidification due to excessive release of carbon dioxide into the atmosphere is threatening to produce large-scale changes to the marine ecosystem affecting all levels of the food chain, a University of B.C. marine biologist warned Friday.

Chris Harley, associate professor in the department of zoology, warned that ocean acidification also carries serious financial implications by making it more difficult for species such as oysters, clams, and sea urchins to build shells and skeletons from calcium carbonate. Acidic water is expected to result in thinner, slower-growing shells, and reduced abundance. Larvae can be especially vulnerable to acidity.

Friday, October 25, 2013
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Sea Change: The Pacific's Perilous Turn

Sea Change: The Pacific's Perilous Turn

The Seattle Times

NORMANBY ISLAND, Papua New Guinea — Katharina Fabricius plunged from a dive boat into the Pacific Ocean of tomorrow. 

She kicked through blue water until she spotted a ceramic tile attached to the bottom of a reef. 

A year earlier, the ecologist from the Australian Institute of Marine Science had placed this small square near a fissure in the sea floor where gas bubbles up from the earth. She hoped the next generation of baby corals would settle on it and take root. 

Fabricius yanked a knife from her ankle holster, unscrewed the plate and pulled it close. Even underwater the problem was clear. Tiles from healthy reefs nearby were covered with budding coral colonies in starbursts of red, yellow, pink and blue. This plate was coated with a filthy film of algae and fringed with hairy sprigs of seaweed. 

Instead of a brilliant new coral reef, what sprouted here resembled a slimy lake bottom. 

Isolating the cause was easy. Only one thing separated this spot from the lush tropical reefs a few hundred yards away. 

Carbon dioxide.

Friday, September 13, 2013
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NOAA Scientists Look at Potential Ocean Acidification Impacts on the Puget Sound Food Web

NOAA Scientists Look at Potential Ocean Acidification Impacts on the Puget Sound Food Web

NOAA scientists at the Northwest Fisheries Science Center are beginning to understand future impacts of ocean acidification on Puget Sound’s food web. Drs. Shallin Busch, Chris Harvey, and Paul McElhany applied ocean acidification scenarios to a food web model to explore how the estuary’s food web and its ecosystem services (i.e. fisheries yield and ecotourism) may change over the next fifty years

Friday, July 19, 2013
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