It is possible that 'destroyed' in this context means sunk during the battle, since the Greeks would almost certainly have destroyed the ships that they captured as well (as Thucydides indeed implies).
Ada kemungkinan bahwa 'dihancurkan' dalam konteks ini berarti ditenggelamkan dalam pertempuran, karena orang Yunani hampir selalu menghancurkan kapal yang mereka rebut (seperti disebut oleh Thukydides).