Aldi’s seafood offering to UK customers consisted of 79% certified sustainable sources, according to the MSC, ahead of Sainsbury’s (76%) and fellow discount supermarket Lidl (72%). The findings show that supermarkets are collectively selling more sustainably-sourced seafood than ever before, creating a 60% increase compared to two years ago.

The annual Supermarket Sustainable Seafood League rates British supermarkets on the amount of seafood that is sourced from the MSC standard, which indicates that seafood can be traced back to source...

Iceland, Morrisons and Marks and Spencer (M&S), [are] sourcing just 3%, 4% and 19% respectively...

Businesses across the seafood sector, such as Birds Eye, M&S and Sainsbury’s, are obtaining 97% of products in line with the Sustainable Seafood Coalition (SSC) sourcing code...

The UK's largest foodservice firm, Compass UK & Ireland, was the first major food foodservice company to join the SSC, committing to voluntary codes of conduct regarding the sourcing and labelling of all seafood products.

Globally, nine major seafood companies, with a combined annual revenue of around £23bn, have all committed to establish sustainable supply chains through the prevention of prohibited activities such as overfishing and slave labour.