Featured Content

At Least 1,721 Purse Seine Vessels Authorized to Fish for Tuna Worldwide Today

ISSF has updated its Large-Scale Tuna Purse Seine Fishing Fleets report as of June 2020. The total number of purse seine vessels, calculated based on data from the five tuna Regional Fisheries Management Organizations (RFMOs), has decreased from 1,843 in 2019 to 1,721 today. 

Having an accurate estimate of active vessels is critical for managing tuna fishing capacity regionally as well as globally. Although purse seine vessels account for approximately 66 percent of the 4.9-million-tonne global tuna catch, multiple databases must be searched to compile a count of all authorized purse seine vessels. To provide an annual best estimate — and to track capacity changes from year to year — ISSF analyzes and aggregates information from the five tuna RFMOs and other sources.

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Featured Infographic

An infographic shows the size and fishing capacity of the large-scale purse-seine fleet fishing for tropical tunas worldwide, based on ISSF research.

It also indicates how ISSF’s ProActive Vessel Register (PVR) database helps to provide transparency of the fleet’s fishing activities, including changes in fish hold volume.

View the infographic here



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There are 696 vessels defined as large-scale purse seine vessels targeting tropical tuna species, with a combined fish hold capacity of over 874,000 m3

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. To learn more, visit iss-foundation.org, and follow ISSF on Facebook, Twitter, Instagram, YouTube, and LinkedIn.