A digital product passport for tuna connects the fishing vessel that caught the fish directly to the consumer who buys it. It works by attaching a unique digital record to each batch of tuna at the point of capture, then carrying verified data about origin, fishing method, sustainability certifications, and labor conditions through every step of the supply chain. Consumers access that record by using a traceability code on the product packaging.
Unverified sustainability labels are undermining buyer confidence across the tuna market
When sustainability claims on tuna products cannot be independently verified, buyers and retailers start to question everything. The problem is not just legal exposure from potential mislabeling claims; it is the slower erosion of trust that happens when a brand cannot back up what its packaging says. Companies that rely on supplier declarations rather than auditable data are one investigation or recall away from significant reputational damage. The fix is straightforward: move verification upstream to the point of catch so that, by the time a claim reaches a label, it is already documented and traceable to a specific vessel, trip, and batch.
Post-processing traceability leaves a gap that regulators and retailers are starting to notice
Most tuna traceability systems begin at the processing plant, meaning the most critical supply chain events—where the fish was caught, which vessel caught it, and whether that vessel was operating legally—are captured through paperwork rather than real-time data. Jurisdictions such as the EU and the US have introduced catch documentation requirements precisely because this gap exists. Companies that cannot demonstrate first-mile verification could face delays, rejected shipments, or compliance reviews. The practical response is to capture vessel-level data at sea, before discharge, so the chain of custody starts at the source rather than at the factory door.
What is a digital product passport for tuna?
A digital product passport for tuna is a structured digital record linked to a specific batch of seafood. It captures verified data about the product’s origin, fishing method, sustainability certifications, and supply chain journey, making that information accessible to consumers, retailers, and regulators—typically through a traceability code on the packaging.
Unlike a paper certificate or a general brand claim, a digital product passport is tied to a unique identifier for each batch, connecting consumer-facing information to underlying documentation: vessel tracking records, catch data, certification status, and compliance checks. The concept builds on international data standards, particularly GS1 EPCIS and the Global Dialogue on Seafood Traceability (GDST) framework, ensuring data can be read and verified consistently across different systems and supply chain partners.
How does first-mile data get captured from fishing vessels?
First-mile data is captured using satellite-based Vessel Monitoring Systems (VMS) and Automatic Identification System (AIS) technology, which record vessel position, movement, and activity in real time. Because this data is collected continuously—not entered manually after the fact—it provides an auditable baseline that supports catch verification before fish reaches a processing facility.
At port discharge, a unique Raw Material ID is assigned to each batch, linking the vessel’s at-sea records to the specific quantity of fish being discharged. Social compliance indicators relevant to crew welfare and labor conditions may also be captured at this stage and attached to the batch record.
What information travels through the tuna supply chain?
In a fully traceable tuna supply chain, each batch carries data covering vessel identity and satellite tracking records, catch location and fishing method, sustainability and certification status, processing steps, social compliance documentation, and logistics progress from port to final delivery.
At each stage, relevant documents are attached to the batch’s digital record—certifications such as MSC Chain of Custody, checks against RFMO registries and IUU blacklists, facility approvals, and social audit evidence from frameworks such as SMETA or the FISH Standard for Crew. Regulatory documentation, including EU CATCH forms and US SIMP and FSMA forms, may also be generated and stored as part of the traceability record, meaning compliance documentation is built into the data flow rather than assembled separately at audit time.
How does a traceability code connect consumers to the catch origin?
A QR code on tuna packaging links to a digital product passport displaying verified, batch-specific information: where the fish was caught, which vessel caught it, the fishing method used, and applicable sustainability certifications. This differs from a brand’s general sustainability page—the code points to data tied to a unique product identifier, drawn from the same auditable records used for regulatory compliance.
For brands and retailers, this substantiates sourcing claims directly. Rather than stating “sustainably sourced” without further detail, the traceability code lets consumers verify the claim themselves, strengthening trust and differentiating the product at shelf level.
What’s the difference between verified and unverified sustainability claims?
A verified sustainability claim is backed by auditable data tied to a specific batch, vessel, or product. An unverified claim rests on supplier declarations or certification that cannot be traced to the specific product being sold. In jurisdictions such as the EU and the US, regulators and retailers increasingly require that sustainability claims be substantiated. A claim that a product is free from IUU catch carries more weight when supported by vessel tracking records and IUU blacklist checks than when it relies on a supplier’s written assurance. Verified claims are also more durable: if a product is recalled or investigated, batch-level documentation enables a fast, credible response.
How does tuna traceability help detect forced labor risks?
Tuna traceability helps detect forced labor risks by combining satellite vessel tracking, electronic monitoring, and human observer data to independently verify conditions on fishing vessels at the first mile. Unusual behavioral patterns—such as extended periods at sea without port calls—may signal elevated risk. When combined with crew welfare certifications such as the FISH Standard for Crew or Fair Trade USA, companies gain a layered approach to labor risk verification.
Each batch’s digital record may include social compliance evidence from frameworks like amfori BSCI, Sedex/SMETA, and electronic monitoring reports. Linking this evidence to the Raw Material ID means labor-related documentation travels with the product through the supply chain, giving retailers and buyers access to verifiable worker-welfare evidence rather than general supplier assurances.
Who benefits from end-to-end tuna supply chain transparency?
End-to-end transparency benefits fishing companies, traders, processors, brands, retailers, regulators, and consumers. Fishing companies can demonstrate compliance and access markets requiring verified sourcing; brands and retailers reduce legal and reputational risk; regulators receive structured, auditable data; and consumers can make informed purchasing decisions. For companies in the middle of the supply chain, digitally stored, batch-linked documentation reduces the time needed to respond to audits or retailer due diligence requests. As interest in ethical sourcing grows, verified product information may also influence purchasing behavior, giving transparent brands a meaningful competitive advantage.
How SmarTuna enables digital product passport traceability for tuna
SmarTuna provides a digital traceability and verification platform that captures first-mile vessel data via satellite VMS and AIS, assigns unique Raw Material IDs at port discharge, and automates verification checks against more than 15 regulatory and certification databases. Social compliance evidence, logistics tracking, and regulatory documentation are stored digitally per batch, making audit-ready records instantly accessible.
- Real-time satellite tracking of fishing vessels from the moment a trip begins
- Automated checks against IUU blacklists, RFMO registries, MSC Chain of Custody, and other certification databases
- Integration of social audit evidence, including SMETA, the FISH Standard for Crew, and observer reports
- Support for consumer-facing digital product passports accessible via traceability code
- Built on GS1 EPCIS and fully GDST-compatible for consistent data exchange across the supply chain
- Automated completion of EU CATCH, US SIMP, and FSMA regulatory forms
If your business needs to move from unverified sourcing claims to documented, batch-level proof, explore SmarTuna’s traceability solutions to see how first-mile verification works in practice.
