Salmon invader caught spawning

An invading pink salmon has been caught on video for the first time as it spawns in a Scottish river.

The pink – or humpback – salmon is normally a native of the Pacific Ocean and poses a serious long-term threat to the Atlantic species.

The pink was filmed in the River Ness as it laid eggs along the water bed.

Filmed using an underwater camera by the Ness Salmon Fishery Board, the large salmon, usually found in the colder waters of Canada and Alaska, is seen burrowing into sand.

The footage is understood to be the first ever showing the breed spawning in UK waters.

The pink salmon has apparently come from the Norwegian coastline, with recent reports of it having been caught in other salmon rivers including the Dee and Spey.

The clip begins with the female salmon swimming into shot before turning on its side and using its long muscular body to create a pocket in the river bed to drop the eggs.