[fisherontheriver]

There is a lot of good work being done on a lot of rivers UK wide. Most of the time it is done by volunteers. Some of the work done has without a doubt save a lot of rivers and canals from turning into either muddy streams or dried up river beds with the odd entry from the local super market.
There is a problem with the local drainage systems not being able to cope with heavy rain and washing effluent into the rivers during those times. I think the water companies are concentrating on trying to get all the clean water they produce to its required location and that getting the dirty water away is less of a priority.
The general public have much to answer for. There is a display in the aquarium in London of things taken out of the Tames things you would not believe.
The potential is there for all rivers to be full of fish just some thought from us all could do this. What a boost to local economy it would be. For example every rod caught salmon in Scotland puts £500 into the local economy.