Conservationists are calling for more stringent labelling on fish to enable consumers to make informed decisions as to whether they buy sustainable products.
Members of the Marine Conservation Society (MCS) maintain that the information provided on current labels makes it "still virtually impossible to tell precisely where most fish products have been caught," according to BBC News.
The MCS, who have launched a revised consumer-based website, believe that in order for people to better discriminate between sustainably and non-sustainably farmed fish, product labels need to provide more information regarding the species, the ocean the product was derived from and the fishing method used.
The advice has been given in an attempt to raise public awareness of fish stock problems. Species to avoid include some yellowfin tuna and Dover sole which are caught using destructive means.
Emphasising the need to provide detailed information, MCS spokesman, Dr Peter Duncan told BBC News: "If supermarkets could get their produce from well-managed fisheries and label it as such, it opens up new opportunities for the public and fishermen. It's a win-win."
This follows the news announced last week that six per cent of fish dishes sold in British supermarkets contained fish products that were not mentioned on the label. Fish Update reported how, following a study and DNA research 23 of some 400 hundred dishes were incorrectly labelled.
Waitrose, Tesco, Sainsbury's, Morrison and ASDA have pledged to carry out independent investigations.