Bulker and containership owners do not plan to curtail their vessels' infrequent trips through the Strait of Hormuz despite the rash of tanker attacks in the last few weeks.

They would rather not exclude the waterway from their voyages, especially since it is impossible to halt such attacks, Star Bulk Carriers president Hamish Norton said.

"You can have the right insurance and take reasonable precautions, but these limpet-mine attacks are impossible to defend against," he told TradeWinds at the 32nd annual Marine Money Week in New York.