The fisheries management organisation, Parties to the Nauru Agreement, or PNA, is looking for a new Chief Executive Officer.
Transform Aqorau, who has been the chief executive of the PNA Office since it was established in 2010, will be leaving the organisation early next year.
Mr Aqorau says the role of the PNA in the global tuna industry is significant and is expected to grow.
The waters of the eight-member nations of PNA account for about 70 percent of the total catch of all species of tuna in the Western and Central Pacific.
It also accounts for 30 percent of the world's raw canning material, making PNA a powerful fisheries management organisation.