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Meet VOSI | Verified Transparency for Tuna Vessels


Featured Resource

Vessels in Other Sustainability Initiatives (VOSI)

Like the ProActive Vessel Register (PVR), ISSF’s Vessels in Other Sustainability Initiatives (VOSI) list is a transparency tool for the public — including stakeholders that want to understand which tuna vessels have made public commitments to more sustainable fishing beyond the commitments reflected on the PVR.

VOSI is verified through a third-party audit process, and it shows if a vessel is:

In addition, vessels that are participating in the MSC’s In-Transition to MSC (ITM) program can now be recognized on VOSI. The ITM program supports fisheries of all sizes and all locations to make measurable, independently verified progress towards certification against the MSC Fisheries Standard

Explore VOSI

Download VOSI Audit Protocol



Improving sustainable practices worldwide through continued collaboration with fishers

More than a decade of bottom-up collaborative workshops and research with fishers from the principal tropical tuna purse seine fleets to reduce ecological impacts associated with the use of fish aggregating devices (FADs) has yielded improved sustainable fishing practices in all oceans.

This integrative effort is founded on participatory knowledge-exchange workshops organized by ISSF, where scientists, fishers, and key stakeholders examine and develop together ways and tools to minimize fishery impacts.

Read the paper 

More articles from ISSF and partners


Featured Graphic

An updated map infographic shows the locations and extent of ISSF’s research with tuna fleets, including at-sea research cruises and biodegradable FAD projects, since 2011. Some of the research projects also have included government and NGO partners.



ISSF in the News

ISSF announces key committee appointments

Undercurrent News

The International Seafood Sustainability Foundation (ISSF), a sustainable fishing nonprofit organization, announced Thursday (Jan 18) that two members have been added to key committees. Ana Parma, who has joined the ISSF’s scientific advisory committee (SAC), is an expert in fisheries modeling, assessment and management. Read the article

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