From Wikipedia: "For test purposes, all the ships carried sample amounts of fuel and ordnance, plus airplanes. Most warships carried a seaplane on deck, which could be lowered into the water by crane,[67] but the Saratoga carried several airplanes with highly volatile aviation fuel, both on deck and in the hangars below. The fire was extinguished and the Saratoga was kept afloat for use in the Baker shot."
Everything was irradiated, especially from Baker, the underwater shot.
Most of them were irradiated so badly that they were sunk on site after decontamination tests failed.
Independence was one of the ships that was towed away to try decontamination steps: "USS Independence survived Able with spectacular damage to the flight deck.[112] She was moored far enough away from Baker to avoid further physical damage, but was severely contaminated. She was towed to San Francisco,[113] where four years of decontamination experiments at the Hunters Point Naval Shipyard failed to produce satisfactory results. On January 29, 1951, she was scuttled near the Farallon Islands.[114]"
