This technique is great because it will be accessible to everyone, instead of some lab procedure. More info after the jump…
SOUTHAMPTON, U.K. — Wild salmon and farmed salmon can now be distinguished from each other by a technique that examines the chemistry of their scales.
Dr Clive Trueman, who is based at the National Oceanography Centre, Southampton said:
“Salmon farming is a big, intensive business. In 2006, around 130,000 tonnes of salmon were farmed in Scotland for the table. Wild populations of Atlantic salmon are in serious decline across their whole range and the total wild population returning to Scottish rivers in the same year is estimated at less than 5000 tonnes. Wild fish are rare and expensive so there is a strong incentive for fraudulent labeling. Farmed fish also escape into rivers, harming the wild population. Unfortunately, it can be difficult to distinguish between farmed and wild fish”