A group of scientists says they’ve found evidence oil from the blown-out BP well has contaminated an area of the Gulf of Mexico vital to spawning several commercial fish species. The University of South Florida researchers say the oil is residing in drop form in the sediments of a key underwater canyon. The findings come one day after another group of scientists at the University of Georgia reported 79 percent of the oil released into the Gulf of Mexico from BP’s Deepwater Horizon well has not been recovered and remains a threat to the ecosystem.