Scientists at Nofima have developed a new and efficient DNA test to trace escaped farmed salmon, in which they can link the DNA profile of the escaped fish to the fish farm from which it escaped. Testing of the system on a pilot scale demonstrates virtually 100 % accuracy, and simulation of data that has so far been done on an industrial scale is promising.
This system means all the fish in the sea cage can relax; they do not need to be tested in order to be matched with escaped fish because their parents were tested before the production fish were hatched.
Connection from offspring to parents
“The advantage of this tracing system is that `only´ the parents of the production fish need to be tested, which is around 30-40,000 fish at the roe producers,” says Celeste Jacq at the food research institute Nofima. Jacq has developed and validated the new DNA test together with fellow Nofima scientist Matthew Baranski. A goal was to have a DNA test of equivalent utility value as the test used in forensic medical studies.
To read more, please visit the Nofima website here.
Photo: Jon-Are Berg Jacobsen