22-Mile Oil Plume Under Gulf Nears Rich Waters

The Huffington Post - A thick, 22-mile plume of oil discovered by researchers off the BP spill site was nearing an underwater canyon, where it could poison the foodchain for sealife in the waters off Florida.

The discovery by researchers on the University of South Florida College of Marine Science's Weatherbird II vessel is the second significant undersea plume reported since the Deepwater Horizon exploded on April 20. The plume is more than 6 miles wide and its presence was reported Thursday.

The cloud was nearing a large underwater canyon whose currents fuel the foodchain in Gulf waters off Florida and could potentially wash the tiny plants and animals that feed larger organisms in a stew of toxic chemicals, another researcher said Friday.

Larry McKinney, executive director of the Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, said the DeSoto Canyon off the Florida Panhandle sends nutrient-rich water from the deep sea up to shallower waters.

McKinney said that in a best-case scenario, oil riding the current out of the canyon would rise close enough to the surface to be broken down by sunlight. But if the plume remains relatively intact, it could sweep down the west coast of Florida as a toxic soup as far as the Keys, through what he called some of the most productive parts of the Gulf. Read more.