The " Mythbusters " did a programme on TV and it and confirmed the fact for those doubting Thoms . Consider if the vessel was sitting in one big bubble with no sea to support it ; do you not think it would fall ?? Therefore areated water depending on the amount of air water mix will have an obvious negative impact on the bouency .
Dunno about Bermuda triangle but remember seeing a demonstration done by some Mad Scientist type on the telly with a large fish tank full of plastic balls about 2 inch diameter and a model ship on the top.
It sat there quite happily until he started blowing air up from the bottom of the tank. It was fine for a while but a point was reached as he turned up the airflow when the thing just sank to the bottom.
Does this prove that air bubbles could sink a ship? I'm not sure but I don't think the idea can be dismissed out of hand.
I am going to attempt an alternative experiment involving sitting in the bath with plastic ducks, eating several large plates of curry and watching the results. (LOL)