|Mackerel via Wikipedia|
For years it has been trumpeted as a popular sustainable fish, renowned for its health benefits and favoured by celebrity chefs.
But the UK's biggest marine charity, the Marine Conservation Society (MCS), has removed mackerel from its "fish to eat" list recommending that it should only be consumed occasionally, like monkfish and plaice. The society is advising consumers to eat herrings or sardines instead.
The MCS says international arguments about quotas mean mackerel is no longer a sustainable choice. Overfishing led to the suspension of the north-east Atlantic stock's Marine Stewardship Council certification as a sustainable fishery.
There has been an increasingly bitter three-year dispute between Iceland and the EU – mainly the UK – over who has the right to land the once-plentiful fish.