The cycle goes on and the levels of toxicity increases until you get to the top of the food chain with pelagic fish such as swordfish that end up on our dinner plate.
So-called pelagic birds those that spend most of their time dozens of miles off the coast could get oiled and then die without anyone knowing "If they die there, they're only going to last two or three weeks before they sink and are gone, " said Roger Helm, chief of the U.S. Fish and Wildlife Service's division of environmental quality.