There will be a rush of oyster sales in the week before Christmas as shoppers treat themselves to beat the gloom, the Scottish Shellfish Marketing Group has predicted.

Last year saw demand soar to 12 tonnes in December from an average monthly volume of just seven tonnes, according to SSMG. This year the group predicts sales will treble.

"We have in place a very careful marketing and logistical plan to ensure we can harvest shellfish to meet the predicted demand," said MD Stephen Cameron.