Waitrose is to suspend sales of mackerel products due to concerns about overfishing. The supermarket said it would stop sourcing fresh, chilled and frozen mackerel by 29 April, as well as tinned mackerel once their current stocks have been sold. Marine groups have recommended a cut in the amount of North East Atlantic mackerel being caught to prevent a collapse in population numbers. Waitrose said it was the first UK supermarket to suspend mackerel sales, adding it would only start selling the fish again once it met their "high sourcing standards". The International Council for the Exploration of the Sea (ICES), which gives scientific advice on sustainable fishing, said that in recent years, mackerel has been overfished due to a lack of international quota agreements. As a result there is not a high enough rate of breeding to replace the volume being caught. More mackerel is caught in British waters than any other fish – in 2024 UK vessels landed more than 230,000 tonnes of the species.…