Shoals of salmon fill each picture, now and always, zigzagging through the blue translucent water in every direction.
In a booth the size of a news kiosk, with the silvery Clyde lapping at the shoreline outside, operator Ross Spears sits transfixed by a series of video screens.
Shoals of salmon fill each picture, now and always, zigzagging through the blue translucent water in every direction.