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A close up of one of the impacted corals. A small amount of apparently living tissue on the tips of some branches is orange. Most of the skeleton is bare or covered by brown flocculent material. |
"The compelling evidence that we collected constitutes a smoking gun" that the substance is tied to the BP spill, the chief researcher on the cruise, Penn State biologist Charles Fisher, said in a statement Friday.
"We have never seen anything like this," he added. "The visual data for recent and ongoing death are crystal clear and consistent over at least 30 colonies; the site is close to the Deepwater Horizon; the research site is at the right depth and direction to have been impacted by a deep-water plume, based on NOAA models and empirical data; and the impact was detected only a few months after the spill was contained."
"These kinds of coral are normally beautiful, brightly colored," Fisher said. "What you saw was a field of brown corals with exposed skeleton — white, brittle stars tightly wound around the skeleton, not waving their arms like they usually do."
Fisher described the soft and hard coral they found seven miles southwest of the well as an underwater graveyard. He said oil probably passed over the coral and killed it.
The coral has "been dying for months," he said. "What we are looking at is a combination of dead gooey tissues and sediment. Gunk is a good word for what it is."
The researchers found the evidence at a site 4,600 feet deep.
"Ninety percent of 40 large corals were heavily affected and showed dead and dying parts and discoloration," the National Oceanic and Atmospheric Administration said in a statement. NOAA sponsored the cruise. "Another site 400 meters (1,200 feet) away had a colony of stony coral similarly affected and partially covered with a similar brown substance."
"The compelling evidence that we collected constitutes a smoking gun" that the substance is tied to the BP spill, the chief researcher on the cruise, Penn State biologist Charles Fisher, said in a statement Friday.
"We have never seen anything like this," he added. "The visual data for recent and ongoing death are crystal clear and consistent over at least 30 colonies; the site is close to the Deepwater Horizon; the research site is at the right depth and direction to have been impacted by a deep-water plume, based on NOAA models and empirical data; and the impact was detected only a few months after the spill was contained."
"These kinds of coral are normally beautiful, brightly colored," Fisher said. "What you saw was a field of brown corals with exposed skeleton — white, brittle stars tightly wound around the skeleton, not waving their arms like they usually do."
Fisher described the soft and hard coral they found seven miles southwest of the well as an underwater graveyard. He said oil probably passed over the coral and killed it.
The coral has "been dying for months," he said. "What we are looking at is a combination of dead gooey tissues and sediment. Gunk is a good word for what it is."
The researchers found the evidence at a site 4,600 feet deep.
"Ninety percent of 40 large corals were heavily affected and showed dead and dying parts and discoloration," the National Oceanic and Atmospheric Administration said in a statement. NOAA sponsored the cruise. "Another site 400 meters (1,200 feet) away had a colony of stony coral similarly affected and partially covered with a similar brown substance."
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| One of the impacted corals with attached brittle starfish. Although the orange tips on some branches of the coral is the color of living tissue, it is unlikely that any living tissue remains on this animal |
http://www.msnbc.msn.com/id/40029074/ns/us_news-environment/