Deep Water Dive Reveals Spilled Oil On Gulf Floor, NPR, November 29, 2010:
[W]e discover we're not actually sitting on the usual dark gray mud that forms the seafloor.
"There's oil on the bottom," [Samantha Joye, a researcher from the University of Georgia] says. "If you look at the camera, you can see the brown coloration."
We see this brown stuff on coral fans, hit like pine trees along a dusty dirt road. More slimy brown stuff hangs over some of the odd formations of frozen natural gas here half a mile below the surface. Crabs here normally pick at worms that actually live in this methane ice.
"The crabs don't look healthy. See all the dark spots and lesion looking things? That's not normal," she says.
Audio and photos here.