, don't think such an assumption is justified. They had oceanographers and toxicologists from both UGA and elsewhere try to estimate how fast oil in the water would have broken down and concluded that as much as 80% of the 4.1 million bbl. of crude that spilled into the Gulf could still be present in the ecosystem in some form. "A large proportion of this oil is still in the system, floating around the water or trying to make it to the bottom," says Samantha Joye, a marine biologist at UGA. "Until we put a 