My other half was taking part in the Glasgow half marathon and as i was walking from place to place to wave her on my path was taken along the banks of the Clyde right in the middle of glasgow. There was a heron sitting in the middle of the River and as i gazed into the water i see a large shoal of BARBEL swimming right in close to the edge. The biggest i would estimate to be around 5-6lb and the smallest was probably no smaller than 3-4lb.
A really good sign for the centre of Glasgow i would say.
Ohhhhh If only it were a Salmon I had seen this year!!!