
A colony of hard coral at a depth of more than 4,000 feet was sloughing off tissue and producing mucus, while a nearby community of soft corals had extensive bare areas. A type of starfish associated with the coral was also in bad shape.
Using a remotely operated robotic vessel, government and academic researchers on the federal ship Ronald H. Brown were surveying coral communities they have studied for several years. Most showed no changes from previous visits.
But when the ship crew focused underwater cameras on colonies seven miles southwest of the BP leak, images of stricken corals, covered with a brown substance, popped up on the screen. The researchers will analyze sediment and coral samples for evidence of hydrocarbons and the chemical dispersants used to break up the crude that spewed for months from BP's Macondo wellhead before it was capped in July….
Spilled oil from the Deepwater Horizon on April 22, 2010, US Coast Guard photo
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