The Bolivar Ferry has resumed around the clock service today following the oil spill over the weekend. As crews work on the cleanup, local fishermen worry what each day of this spill could mean for their future. Dr. Cornelis Elferink of UTMB is studying the long term impacts of the BP oil spill. He says he still eats seafood but it takes time to find out exactly what's affected by a spill. "I guess I'm optimistic that levels are not of sufficient concerns to warrant further precautions at this point," Elferink said.