Anglers have reported finding a non-native species of fish back in rivers in parts of Scotland.

Pink salmon are native to Pacific Ocean waters but have spread to parts of northern Europe after being released into rivers in Russia in the 1960s.

“Unprecedented numbers” of the fish were found in Scottish rivers in 2017.

Their two-year life cycle raises the likelihood of the salmon being seen again and catches have been reported on the Dee, Tweed and Kyle of Sutherland.

The Dee flows through Aberdeenshire, the Tweed passes through the Borders while the Kyle of Sutherland is an estuary in the east Highlands.

Ness District Salmon Fishery Board, which has responsibility for the River Ness in the Highlands, said reports of catches had been received from the three sites.

‘Lone male’

There have been no reported catches on the Ness, but pink salmon have been spotted on underwater cameras used by the fishery board.