News and Features by Research Area or Topic
Posted on April 30th, 2013 in Climate Impacts, Ocean Acidification, Sponsored Research
While, the negative impacts of increasing ocean acidification on clams, scallops and other bivalves the biological basis is still unclear, “legacy effect” of early CO2 explosure can play a significant role in bivalve population dynamics. NCCOS-funded researchers performed a series of experiments to look at the days-to-months impacts of carbon dioxide (CO2) on the larvae of northern quahogs [...]
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Posted on November 28th, 2012 in Chemical Contaminants, Climate Impacts, Coastal Pollution, Hypoxia & Eutrophication, News Clips, Ocean Acidification, Pathogens & Microbes, Sponsored Research
The Smithsonian Environmental Research Center’s DOOM lab (Dissolved Oxygen and Oyster Mortality) is examining how oysters respond to sudden drops in oxygen levels in shallow parts of the Chesapeake Bay at night. These fluctuations are partially natural, but appear to be made worse by nitrogen and phosphorus pollution. Oxygen depletion may make oysters more susceptible [...]
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Posted on October 3rd, 2012 in Climate Impacts, Ocean Acidification, Other Topics, Outreach
NCCOS-funded scientists working under the auspices of the NOAA Ocean Acidification Program were recently introduced to the internal research community at special roll-out and open discussion at the Third International Symposium on the Ocean in a High-CO2 World. Three U.S. ocean acidification researchers were recently awarded NOAA Ocean Acidification Program extramural funding. The roll-out introduced [...]
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Posted on September 30th, 2012 in Climate Impacts, News Clips, Ocean Acidification
Kris Holderied, who directs the National Oceanic and Atmospheric Administration’s Kasitsna Bay Laboratory, says the ocean’s increasing acidity is “the reason fishermen stop me in the grocery store.” “They say, ‘You’re with the NOAA lab, what are you doing on ocean acidification?’ ” Holderied said. “This is a coastal town that depends on this ocean, and [...]
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Posted on September 24th, 2012 in Changing Temperature & Hydrology, Climate Impacts, Ecology & Oceanography, Forecasting, Ocean Acidification
A research paper published this week reveals that large die-offs of algae locally magnify ocean acidification. As the cells die and sinks to the bottom, the bacteria population that feeds on them swells in response, consuming more oxygen and releasing more carbon dioxide (CO2). The CO2 reacts in seawater to form acidic compounds that lower [...]
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Posted on September 21st, 2012 in Changing Temperature & Hydrology, Climate Impacts, News Clips, Ocean Acidification
A new kind of witchy interaction is underway in the oceans, report the authors of a new paper in Environmental Science & Technology. William G. Sunda and Wei-Jun Cai created a model to predict how CO2 from water pollution—that is, runoff from chemical fertilizers (farms), human waste (sewage), and animal waste (feedlots, ranches), plus nitrogen [...]
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Posted on September 19th, 2012 in Climate adaptation, Climate Impacts, Ecological Forecasts & Tools, Ecosystem Management, Human Dimensions, Ocean Acidification, Sponsored Research
As scientists continue to research ways in which the oceans are changing – and what these changes mean for fish populations, three new research projects will receive funding to examine the effects of ocean acidification on fisheries, and the coastal economies that depend upon them. Ocean acidification occurs when the ocean absorbs carbon dioxide from [...]
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Posted on February 15th, 2012 in Climate Impacts, Harmful Algal Blooms, Hypoxia & Eutrophication, Ocean Acidification
Dissolution of carbon dioxide (CO2) from rising atmospheric CO2 is acidifying ocean water; but a second environmental problem, eutrophication, is having a similar effect in coastal bottom waters. This occurs because anthropogenic inputs of nutrients fuel massive algal blooms, which deplete bottom waters of oxygen (O2) and release CO2 when the organic matter from these blooms is respired by [...]
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