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News articles on Dead Zone

Mongabay.com news articles on dead zone in blog format. Updated regularly.

Global warming to worsen ocean dead zones, hurt fisheries
(5/1/2008) Warming oceans will worsen oxygen-deficient or hypoxic dead zones, affecting ecosystems and fisheries, warn researchers writing in the journal Science.


Ocean dead zones have nearly quadrupled since 1994
(4/3/2008) Coastal areas worldwide are suffering from over-enrichment of their waters by nitrogen and phosphorus, finds a new study from the World Resources Institute (WRI). This over-enrichment, known as eutrophication, causes numerous environmental problems, eventually devastating coastal environments. In overly nutrient-rich waters phytoplankton, micro- and macroalgae grow to excessive portions; these 'algal blooms' diminish subaquatic vegetation, damage coral reefs, and deplete populations of fish, shellfish, marine mammals, and sea birds. In the worst case scenarios the massive algal blooms form hypoxic or dead zones due to loss of oxygen in the water, essentially condemning the ecosystem.


Corn ethanol is worsening the Gulf dead zone
(3/10/2008) Proposed legislation that will expand corn-ethanol production in the United States will worsen the growing "dead zone" in the Gulf of Mexico and hurt marine fisheries, report researchers writing in the Proceedings of the National Academy of Sciences (PNAS).


Why are oceans at risk from global warming?
(2/17/2008) Climate change is putting the world's oceans at risk by increasing the temperature and acidity of seawater, and altering atmospheric and oceanic circulation, warned a panel of scientists this week at the American Association for the Advancement of Science (AAAS) annual meeting in Boston.


U.S. biofuels policy drives deforestation in Indonesia, the Amazon
(1/17/2008) U.S. incentives for biofuel production are promoting deforestation in southeast Asia and the Amazon by driving up crop prices and displacing energy feedstock production, say researchers.


Cellulosic ethanol production could fight Gulf Dead Zone, help fisheries
(1/16/2008) Feedstocks for cellulosic ethanol production could help fight the massive "dead zone" that forms each year in the Gulf of Mexico as a result of current farming practices, says a University of Alabama in Huntsville biologist.


Oregon dead zone event over, but cause still unknown
(10/30/2006) The hypoxic dead zone off the coast of Oregon has finally dissipated but researchers still don't know why it has formed each of the past summers.


'Dead Zone' causing wave of death off Oregon coast
(8/10/2006) The most severe low-oxygen ocean conditions ever observed on the West Coast of the United States have turned parts of the seafloor off Oregon into a carpet of dead Dungeness crabs and rotting sea worms, a new survey shows. Virtually all of the fish appear to have fled the area.


Hypoxic "dead zone" growing off the Oregon Coast
(7/31/2006) A hypoxic "dead zone" has formed off the Oregon Coast for the fifth time in five years, according to researchers at Oregon State University. A fundamental new trend in atmospheric and ocean circulation patterns in the Pacific Northwest appears to have begun, scientists say, and apparently is expanding its scope beyond Oregon waters.


Lack of oxygen triggers sex imbalance in fish
(3/29/2006) Oceanic oxygen depletion resulting from agricultural run-off and pollution can trigger sex imbalance in fish and pose an extinction risk according to a new study published by researchers in Hong Kong. The finding raises new concerns about "dead zones",expanses of water so devoid of oxygen that most sea life cannot survive.


Gulf dead zone larger than expected
(8/2/2005) Gulf dead zone larger than expected.


Gulf dead zone may by increasing according to researchers
(4/15/2005) Gulf dead zone may by increasing according to researchers



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