A special mark buoy has been placed in position 41° 09.781′ S 173° 47.621′ E at Marine Farm 8354 in Nydia Bay.
'The buoy will be used to detect phytoplankton as part of the Mogeo pilot.
A further special mark buoy has been placed at Marine Farm 8646 in the Kenepuru Sound.
All mariners are advised to navigate with caution.