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Purse seined tuna
Update: we've updated the tinned tuna league table for 2011. Who's at the top? Who's languishing at the bottom? Find out...
Find out more about this league table »
NB Three other major supermarket chains were excluded from the final table for the following reasons:
Waitrose: does not stock its own-label
After a slow start, Morrisons began to show a more serious commitment to sustainable fish sourcing, introducing a sustainable seafood procurement policy in 2006.
The tuna retailers' league table has been compiled on the basis of data obtained from four sources:
Update, December 2009: John West introduces new sustainability policy »
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