NEW Status of the Stocks
Of the total commercial tuna catch worldwide, 81% came from stocks at “healthy” levels of abundance, according to the October 2019 ISSF Status of the Stocks report. In addition, 15% of the total tuna catch was from overfished stocks, and 4% was from stocks at an intermediate level of abundance.
- The Atlantic Ocean bigeye and Indian Ocean yellowfin tuna stocks are overfished and overfishing is taking place.
- Noting the high uncertainty levels in stock assessments, ISSF is taking a cautious view and considers that the Eastern Pacific Yellowfin and Bigeye tuna stocks are experiencing overfishing and that the Yellowfin stock is overfished.
- Overfishing is occurring on the Pacific bluefin tuna stock and the stock is heavily overfished.
ISSF publishes its signature Status of the Stocks report twice each year using the most current scientific data on 23 major commercial tuna stocks.
Visualize and export data on tuna-stock health and catch worldwide with ISSF’s “Status of the Stocks Tool”. The data-visualization tool, based on its long-running and widely followed Status of the Stocks report, is located on the ISSF website and accessible through the Status of the Stocks overview page. Users can easily toggle through tuna stock health indicators and filter by location, species and other key stock health and catch factors.
Marine-science graduate students and postdoctoral researchers interested in helping to pioneer the next generation of sustainable tuna fishing initiatives — especially to reduce bycatch and protect ocean ecosystems — are invited to submit their ideas to the first-ever International Seafood Sustainability Foundation (ISSF) Seafood Sustainability Contest.
Watch a video about the contest
ISSF in the News
More than half of the world’s tuna is harvested from the Western and Central Pacific Ocean
About the International Seafood Sustainability Foundation (ISSF)
The International Seafood Sustainability Foundation (ISSF) is a global coalition of scientists, the tuna industry and World Wildlife Fund (WWF) — the world’s leading conservation organization — promoting science-based initiatives for the long-term conservation and sustainable use of tuna stocks, reducing bycatch and promoting ecosystem health. Helping global tuna fisheries meet sustainability criteria to achieve the Marine Stewardship Council certification standard — without conditions — is ISSF's ultimate objective. In 2019, ISSF celebrated a “Decade of Discovery” as the organization completed its tenth year of scientific research, advocacy and industry engagement. To learn more, visit iss-foundation.org, and follow ISSF on Twitter, Facebook and Instagram.