Sales of canned tuna and canned salmon at UK retailers continued to tank in the 12 months through May, according to the latest figures from market research company Nielsen.

The entire ambient category dropped 8.6 percent in value in the year through May 20 to £419.9 million (€477.5 million/$532 million) from £440.8 million (€501.2 million/$558.4 million) a year earlier.

Volumes declined 7.3 percent year-on-year from 71,898 metric tons to 66,629 metric tons.