Report Warning On "Invasive" Crab

An invasive crab found in a Scottish river could have a "devastating impact" on salmon and trout if the species spreads, scientists have warned.

The Chinese Mitten Crab was recorded in Scotland for the first time when it was found in the River Clyde in recent months.

It is classed as one of the top 100 worst alien species in the world and threatens biodiversity by competing for food, preying on native species and causing severe structural damage to riverbanks through burrowing.

Dr David Morritt from the University of London's telling Clyde News why: