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RESOURCE ROUND UP: Public Vessel Lists | Tuna Fisheries Transparency Tools


Featured Resource

The ProActive Vessel Register (PVR) & Vessels in Other Sustainability Initiatives (VOSI)

The ProActive Vessel Register (PVR) is one of four public vessel lists that ISSF makes available on its website to foster transparency in tuna fishing. Fishing vessels can register on the PVR to show how they are following a suite of science-based best practices that support sustainable tuna fisheries.

Access the PVR

In addition to the PVR, ISSF maintains three other public, global, and searchable vessel lists, including our newest, the Vessels in Other Sustainability Initiatives (VOSI) list — a first-of-its-kind searchable, online list of vessels worldwide that are fishing in a Marine Stewardship Council (MSC)-certified tuna fishery and/or participating in a tuna Fishery Improvement Project (FIP). 

Stakeholders who want to identify vessels that have made sustainability commitments can consult VOSI and download its vessel data to their desktops. Users can search and filter the vessel list and view pop-up profiles for each vessel that include radio call sign, year built, vessel dimensions, and more. Each record in VOSI:

  • Displays a vessel’s Unique Vessel Identifier (UVI) number and UVI type along with vessel flag and vessel type
  • Indicates whether the vessel is listed in the PVR and/or the ISSF Record of Large-Scale Purse Seine Vessels
  • Links to information about the MSC-certified fishery and/or FIP the vessel is in

Like the PVR, all vessels listed on VOSI are subject to regular third-party audits conducted by MRAG Americas, and the audit protocol is available on the ISSF website.

View VOSI and ISSF’s other vessel lists


Featured Infographic

PVR Growth by Vessel Type

This infographic shows how the PVR has grown from its inception in 2012 through 2021, both in number and type of vessel (handlinelongline, pole & line, purse seine, supply & tender).

View the graphic


Featured ISSF Conservation Measures

Since our inception in 2009, ISSF has adopted science-based conservation measures with the intent that processors, traders, importers, transporters, and others in the seafood industry commit to conform to them to facilitate real, continuous improvement across global tuna stocks.

We publish regular reports, prepared by auditor MRAG Americas, on each participating company’s compliance with our measures. 

As indicated on our website, many ISSF conservation measures are linked to the PVR — either as a best practice tracked on the list itself, or as a requirement for a vessel’s listing — and six measures are specifically categorized as PVR measures.

View all ISSF conservation measures

View measures in the ProActive Vessel Register category


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