A MAN says he was 'surprised' to spot one of Scotland's 'most invasive species' while fishing in Glasgow.

We previously reported a mink was spotted swimming in the Forth and Clyde Canal in Dalmuir. 

Now, two mink appear to have been spotted swimming in the River Kelvin.

READ MORE: One of Scotland's 'most invasive animals' spotted in Clydebank

Video by Craig Robertson

Craig Roberston clocked the animals while fishing near John Paul Academy in Summerston earlier this week.

He says he was 'taken by surprise' as he fishes in the area often and has never seen them before. 

Craig said: "I was just fishing away and they appeared from under the water.

"I fish there quite frequently and these took me by surprise when they popped out of the water as I haven’t seen anything like this before."

The American mink was first brought to the UK in 1929 to establish fur farms. Since then there have reportedly been many escapes.

As an introduced predator, mink have had an adverse impact on the native biodiversity of the Western Isles and in other parts of Scotland. 

Their presence poses a particular threat to the many internationally important resident and migrant populations of ground-nesting birds.

Mink eat birds and their eggs, small mammals, fish, amphibians, shellfish and crustaceans and were the main cause of the crash of the British water vole population in the second half of the 20th century.