How were brands ranked?
Greenpeace surveyed and scored the companies based on their tuna sourcing policies and practices in seven key areas.
Sustainability Policy
A commitment to selling sustainable and equitable tuna through a policy with clear sourcing requirements to exclude tuna from unhealthy stocks, destructive fisheries, and socially irresponsible companies.
Tracing tuna from ship to shelf
Companies should be able to track their tuna through all parts of the supply chain. Information about exactly where and how the tuna was caught is key to ensuring sourcing requirements are being met.
Fishing methods
Most tuna is caught using purse seine nets with fish aggregation devices (FADs), a method responsible for high levels of bycatch including sharks and other marine life as well as juvenile tuna from vulnerable stocks. In contrast, pole and line fishing offers a less wasteful solution, with reduced bycatch. Pole and line fisheries also tend to offer greater economic returns to local populations. Purse seine fishing without FADs is also a better option.
Tuna species
Each tuna species is under different levels of pressure. The species commonly found in cans in Canada include skipjack, yellowfin and albacore. Tongol is also sometimes sold. Many stocks of yellowfin and albacore are of concern, and tongol stocks are not properly assessed. Skipjack is the most abundant species.
Labelling and consumer education
Ensuring comprehensive and clear labeling on tuna products and promotion of sustainable tuna alternatives. Labels should include the species name, catch method and the area of catch.
Support for marine reserves and promoting industry change
Companies should offer public support for the establishment of marine reserves, including the proposed protected areas of the Western and Central Pacific ocean. Marine reserves allow for the long-term sustainability of fish stocks and healthy marine ecosystems. Management of tuna stocks must also be improved and companies can play a role in pressuring for change.
Avoiding illegal, unreported or unregulated products
Companies should be able to guarantee their supply chain does not include operators that engage in illegal, unregulated or unreported (IUU) fishing. Illegal fisheries undermine fisheries management efforts and exacerbate the overfishing crisis.
Information used to inform the ranking is obtained from the companies through a standardized survey, correspondence with the companies, publicly available information and in-store surveys. Greenpeace is grateful for the cooperation of the companies in providing information, and for the help given by volunteers and supporters who gathered “on the ground” information.