Review of the statistical data available for yellowfin tuna

To provide participants at the Data Preparatory meeting of the 23rd Session of the IOTC Working Party on Tropical Tunas (WPTT23(DP)) with a review of the status of the information available on yellowfin tuna (Thunnus albacares).
The document provides an overview of the data available in the IOTC Secretariat databases as of May 2021 and describes the progress achieved in relation to the collection and verification of data, identifies problem areas and proposes actions that could be undertaken to improve them.