Britain’s coastal waters are so overfished that they can supply the nation’s chip shops, restaurants and kitchens for little more than six months of every year, research has shown.

Overfishing has caused so much damage to fish stocks across Europe that the quantity landed each year to satisfy the public appetite has fallen by 2 per cent on average every year since 1993.

So great is demand that next Saturday, 16 July, has been dubbed Fish Dependence Day – the day on which imports would have to be relied upon because native supplies would have run out if only home-caught fish had been eaten since 1 January. Last year it fell on 3 August, almost three weeks later, and in 1995 it was six weeks later.

Other European countries consume fish at an even greater rate and the EU as a whole reached its Fish Dependence Day on 2 July, compared with 9 July last year, with fishermen estimated to have landed 200,000 tonnes less than a year earlier. Spain became dependent on non-EU imports on 8 May, Germany on 27 April, Italy on 30 April and France on 13 June.

The demands made on UK and European fisheries are making them less productive, […]