The existing Commission measure governing transshipment was adopted in 2009 and is intended for review next year.
But Forum Fisheries Agency wants to see a Commission review process that results in significant strengthening of the current measure.
Its chair has said there is insufficient regulation, monitoring and reporting of tuna transshipment, particularly on the high seas, and it is distorting catch reports.
The aim of the FFA is for all transshipments in the central and western Pacific occurring in port.
