Yes, I was on the tour and I refer to the existing outdoor (open) ponds at PF2. Perhaps the Phase 2 open dams will be used for aquaculture, but my impression was that prawns will be grown in controlled indoor tanks, so that the limited outdoor growing season will not constrain the ability to achieve maximum production.
At PF2 there were also precautions (procedures) to prevent introducing contaminants, diseases or other problems (disinfecting our footwear, quarantine areas, etc.). It would be far more difficult to control these factors using open ponds.
Perhaps another member of the tour group can clarify.
