This infographic, created in April 2025, tracks the growth in registrations on ISSF’s Vessel in Other Sustainability Initiatives (VOSI).
It shows growth in number and by vessel type — purse seine, longline, pole-and-line, and supply-and-tender — from 2020 through March 2025.
VOSI is a transparency tool for the public — including seafood companies that want to understand which tuna vessels have made public commitments to more sustainable fishing beyond the commitments reflected on ISSF’s ProActive Vessel Register (PVR).
