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Posts Tagged ‘ecosystem’

Giant Red Crab Invades Antarctic, Threatens Entire Ecosystem

September 15, 2011 1 comment

inquisitr

Red king crab

Red king crab, courtesy of National Oceanic and Atmospheric Administration via Wikimedia Commons

The Antarctic is being invaded by a species that threatens to destroy it’s eco-system, giant red crabs are invading the area, wiping out local wildlife and threatening a 14 million year-old system in the process.

News of the crabs quick appearance is unsettling for researchers who three years ago warned that king crabs would invade the area within 100 years.

Using a remotely operated submersible more than one million Neolithodes yaldwyni have already been discovered in Palmer Deep, some 3,000 to 4,500 feet below sea level.

Craig Smith of the University of Hawaii at Manoa tells the Washington Post:

“This is likely to alter sediment processes, such as the rate at Read more…

Has BP really cleaned up the Gulf oil spill?

April 14, 2011 Comments off

guardian

A brown pelican coated in heavy oil wallows in the Louisiana surf, June 2010.

A brown pelican coated in heavy oil wallows in the Louisiana surf, June 2010. Photograph: Win Mcnamee

There are few people who can claim direct knowledge of the ocean floor, at least before the invention of the spill-cam, last year’s strangely compulsive live feed of the oil billowing out of BP‘s blown-out well in the Gulf of Mexico. But for Samantha Joye it was familiar terrain. The intersection of oil, gas and marine life in the Mississippi Canyon has preoccupied the University of Georgia scientist for years. So one year after an explosion on the Deepwater Horizon offshore drilling rig, about 40 miles off the coast of Louisiana, killed 11 men and disgorged more than 4m barrels of crude, Joye could be forgiven for denying the official version of the BP oil disaster that life is returning to normal in the Gulf.

The view from her submarine is different, and her attachment is almost personal. On her descent to a location 10 miles from BP’s well in December, Joye landed on an ocean floor coated with dark brown muck about 4cm deep. Thick ropes of slime draped across coral like cobwebs in a haunted house. The few creatures that remained alive, such as the crabs, were too listless to flee. “Most of the time when you go at them with a submarine, they just run,” she says. “They weren’t running, they were just sitting there, dazed and stupefied. They certainly weren’t behaving as normal.” Her conclusion? “I think it is not beyond the imagination that 50% of the oil is still floating around out there.”

At a time when the White House, Congress, government officials and oil companies are trying to put the oil disaster behind them, that is not the message from the deep that people are waiting to hear. Joye’s data – and an outspoken manner for a scientist – have pitted her against the Obama adminstration’s scientists as well as other independent scientists who have come to different conclusions about the state of the Gulf. She is consumed Read more…

California water future called ‘bleak’

February 28, 2011 Comments off

terradaily.com

 

by Staff Writers
Sacramento (UPI) Feb 24, 2011
Scientists say the water situation in California is “bleak” and the state needs to act to bolster its entire aquatic ecosystem.

“Our assessment of the current water situation [in California] is bleak,” says Ellen Hanak, a Public Policy Institute of California economist. “California has essentially run out of cheap, new water sources.”

The institute has released its findings in a publication written by a team of scientists, engineers, economists and legal experts from three University of California campuses and Stanford University, AAA ScienceMag.org reported Thursday.

Their report says water quality is deteriorating, pollution from agricultural runoff is increasing, and efforts to manage water and species recovery are Read more…