HADDOCK from the North Sea and West of Scotland has been taken off a list of "fish to eat" in the face of new scientific advice, the Marine Conservation Society said.
The fish is a popular choice with consumers as it is one of the UK's "big five" seafood species, along with cod, tuna, salmon and prawns, and a favourite at the chip shop.
But haddock from three North Sea and West of Scotland fisheries are no longer on the charity's recommended "green" list of fish to eat.
They have been downgraded because stock numbers in 2016 were below the recommended level and action was needed to increase the number of fish of breeding age, the society said.
Two of the fisheries are now rated "amber" - scoring just four in a scale of one to five, where one is the most sustainable - in the Marine Conservation Society's (MCS) Good Fish Guide.
The other fishery has seen its fish drop from being a good choice of haddock to buy to one to eat only occasionally, with a "three" rating.
Bernadette Clarke, the MCS Good Fish Guide manager, said: "These ratings changes have come about because scientific perception of the stock has changed.
"Compared to 2015, the stock numbers in 2016 were below the recommended level and at the point where action is now needed to increase the number of fish of breeding age."
The Marine Conservation Society has ratings for different types of tuna from around the world and different methods of catching them, including nets, long lines and pole and line fisheries.
MCS sustainable seafood work is supported by players of the People's Postcode Lottery, whose head of charities Clara Govier said: "It is great to see a whole range of resources giving people the power to make their own choices on which seafood to eat.
"However you access it, the Good Fish Guide gives instant advice on what to eat and how to cook it, whether you're shopping for the family in the supermarket or looking for a place to eat out."
:: Consumers who want to check which fish to buy or avoid can visit www.goodfishguide.org, download the App on iPhone or Android, or pick up a printed pocket version from the society.