UK diners are increasingly turning to the versatile, nutritious fish

For millions of Britons, smoked salmon on blinis or dill-laden gravadlax is a party staple. But restaurants and home cooks are increasingly choosing trout instead.

Trout sales are up 36% year on year at Waitrose, with raw trout seeing the biggest increase, up more than 60%. Over at online retailer Ocado, trout sales have jumped higher – up 54% year on year.