How American carriers would have changed the attack

Which ships would Japan have prioritized if American carriers had been in Pearl Harbor?

The carriers would also have been attacked, and their presence probably would have strengthened the case for a third wave.

Japanese aircraft could have attacked carriers alongside the battleships, cruisers, and destroyers. Their presence would have added valuable targets without removing the battleships from the target list. The extra work would probably have increased the incentive for a third wave. Their historical absence may instead have made Japanese commanders fear that an undetected American carrier force was close enough to counterattack.