Latest Dead zone Stories

2010-06-07 09:05:00

While an out-of-control gusher deep in the Gulf of Mexico fouls beaches and chokes marshland habitat, another threat could be growing below the oil-slicked surface. The nation's worst oil spill could worsen and expand the oxygen-starved region of the Gulf labeled "the dead zone" for its inhospitability to marine life, suggests Michigan State University professor Nathaniel Ostrom. It could already be feeding microbes that thrive around natural undersea oil seeps, he says, tiny critters that...

2010-03-12 08:42:24

As oxygen-deprived waters increase, they emit more greenhouse gasses into atmosphere The increased frequency and intensity of oxygen-deprived "dead zones" along the world's coasts can negatively impact environmental conditions in far more than just local waters. In the March 12 edition of the journal Science, University of Maryland Center for Environmental Science oceanographer Dr. Lou Codispoti explains that the increased amount of nitrous oxide (N2O) produced in low-oxygen (hypoxic) waters...

2009-10-22 15:34:09

A team of researchers at the University of British Columbia, along with colleagues at the US Dept. of Energy Joint Genome Institute, has mapped the genome of a microbe that is silently helping to shape the ecology of oxygen-minimum areas in the ocean known as dead zones. "Microbes specialize in metabolic innovation and many can use alternatives to oxygen, including nitrates, sulfates and metals, breathing these compounds instead of oxygen. These adaptations likely enable them to thrive in...

2009-10-10 08:42:34

Underwater robotic gliders help reveal why massive oceanic expanses are losing virtually all of their marine life every summer Every summer since 2002, Oregon's coastal waters have been invaded by massive low-oxygen zones, commonly known as "dead zones," that become so oxygen-starved that most animals flee, die or suffer severe stress. In order to determine how and why these dead zones form, scientists must continually monitor conditions in affected waters, which may cover hundreds or even...

2009-10-10 08:36:32

Scientists work to explain why massive "dead zones" have been invading the Pacific Northwest's near-shore waters since 2002 Yet another ecological scourge may earn a place on the ever-lengthening list of problems potentially caused by climate change: the formation of some so-called "dead zones""”huge expanses of ocean that lose virtually all of their marine life at depth during the summer. Possible connections between climate change and the relatively recent formation of dead zones in...

2009-09-16 10:24:52

Scientists in Pennsylvania report that boosting production of crops used to make biofuels could make a difficult task to shrink a vast, oxygen-depleted "dead zone" in the Gulf of Mexico more difficult. The zone, which reached the size of Massachusetts in 2008, forms in summer and threatens marine life and jobs in the region. Their study is scheduled for the Oct. 1 issue of ACS' semi-monthly journal Environmental Science & Technology. Christine Costello and W. Michael Griffin and...

2009-07-25 13:35:00

A scientist reported Friday that the Gulf of Mexico's "dead zone," where low amounts of oxygen in the water make it hard for anything to live there, is less than half the size as predicted earlier this year. Every year in the gulf bacteria, Which feed on algae blooms from the flow of farming runoff and other nutrients from the Mississippi River, cause the notorious hypoxic area to form in the Gulf. According to Nancy Rabalais, a researcher that specializes in the problem for the Louisiana...

2009-06-18 13:00:00

University of Michigan aquatic ecologist Donald Scavia and his colleagues say this year's Gulf of Mexico "dead zone" could be one of the largest on record, continuing a decades-long trend that threatens the health of a half-billion-dollar fishery. The scientists' latest forecast, released today, calls for a Gulf dead zone of between 7,450 and 8,456 square miles"”an area about the size of New Jersey. Most likely, this summer's Gulf dead zone will blanket about 7,980 square miles, roughly...

2009-04-10 14:39:09

Bill Deutsch, of Auburn University, has launched a new project that is aimed at reducing farm runoff that has become a driving force behind water pollution in the Gulf of Mexico. The $300,000 project, funded by the US Environmental Protection Agency, will combine the efforts of colleagues in Veracruz, Mexico as a part of a three-year project to monitor pollution levels of water flowing into the Gulf. As a result of the study, Deutsch and colleagues hope to determine new methods that will...

2009-04-03 13:45:09

Polluted water from Chicago has helped create a dead zone in the Gulf of Mexico, where excess algae suffocates marine life, says a U.S. Geological Survey study. Chicago was named the top offender in the study of the causes of nitrogen and phosphorus pollution in the 8,000 square-foot dead zone, Chi-TownDailyNews.org reported Friday. The study released Thursday examined sources for 150 watersheds in the Mississippi River Basin. Chicago's Metropolitan Water Reclamation District, or MWRD, ranked...

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