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Report Rates State of Tuna Stocks Worldwide 

Of the total commercial tuna catch worldwide, 87.6% of the global catch continues to be sourced from stocks at “healthy” levels of abundance, according to the current Status of the Stocks report. In addition, 9.6% of the total tuna catch came from overfished stocks, and 2.8% came from stocks at an intermediate level of abundance.

Several tuna stocks worldwide are considered overfished and/or subject to overfishing:

ISSF publishes its signature Status of the Stocks report twice each year using the most current scientific data on 23 major commercial tuna stocks. 

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Featured Tool

Interactive Stock Status

Use our interactive tool to visualize 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 the tool


More on Stock Assessment

Stock Assessment Workshop Reports

ISSF convenes periodic workshops to review Regional Fisheries Management Organization (RFMOs) strategies for assessing tuna stocks. Workshop topics have included uncertainty in stock assessment and the adoption of harvest control rules.

Read all five workshop reports here.