The fishing fleet data collection is part of the more comprehensive data gathering carried out on an annual basis by the Fisheries Committee (COFI) of the Trade and Agriculture Directorate (TAD) from OECD members and participating non-OECD economies.
Data are collected from Fisheries Ministries, National Statistics Offices and other institutions designated as an official data source.
For countries that are part of the European Union, fishing fleet data are directly sourced from the Eurostat dataset 'Fishing fleet by age, length and gross tonnage (fish_fleet_alt)'.