Status of the Stocks

The report provides information on the status of major tuna stocks as well as on bycatch and bycatch mitigation issues in tuna fisheries. It also reviews programs by Regional Fisheries Management Organizations (RFMOs) to manage tunas and related species.

Our Status of the Stocks report includes:

• Summary results of the most recent scientific assessment of the 23 commercial tuna species worldwide
• Assessments of the effectiveness of current management measures adopted by RFMOs
• Rankings of the 23 stocks using a consistent methodology focused on three factors: Abundance, Exploitation/Management (i.e.,  fishing mortality), and Environmental Impact (i.e., bycatch).

Use our interactive tool to visualize certain data from the Status report:

• View trends in tuna stock health since 2011, filtered by species and ocean location, and based on catch or stock, and on stock abundance or fishing mortality
• View the species composition of the total tuna catch — including catch percentages by fishing method — in different ocean locations, based on the most recent data
• View catch trends by fishing method since 1950, filtered by tuna species and stock area. 

Read about the launch of the tool in our April 5, 2018, press release.