Featured Content

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.

Albacore and skipjack stocks in all four major tuna fishing regions are rated as healthy, but several tuna stocks worldwide are considered 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. 

Learn more


Interactive Tool

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.

Use the tool


Featured Video

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

India objects to temporary plan to rebuild yellowfin stocks in the Indian Ocean

Undercurrent News


Tuna Facts


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 TwitterFacebook and Instagram.