To off-set the doom and gloom over the last couple of pages, the state of the rivers and non-stillwaters (i.e. the Somerset drains, Kennet and Avon canal etc) around my parts seems to be one of overall improvement - water quality in almost all of these are better than they have been for a long long time (admittedly probably only down to several major and high profile national news making chemical and pollutant leaks over the years), small clubs with a few locally controlled waters and/or river stretches seem to be managing them very well with regular and sensible restockings, and the otter and mink populations appear to have balanced with nature (barbel, roach and eels all making a comeback in the Bristol Avon, with young and intermediate generation classes showing, and a very healthy silverfish population in general, and the pike and perch populations in the drains seem to be as healthy as they were 20 years ago).
I would agree that the massive rise in popularity of commercials and expensive carp puddles at the expense of other waters like rivers, canals and drains may affect the future of our rivers, at least in terms of us being able to fish them, and the huge drop in the number of junior anglers may affect the future of the sport in general. However, being optimistic, I don't think the future is that bleak, at least not yet. UK record fish are still coming out, specimen fish are still coming out, we still see people catch large bags of smaller fish in under-fished rivers, and this year alone I've caught numerous barbel between half a pound and 7lb 6oz from (and seen and lost more up to double figures!) in the Bristol Avon, a river that most barbel anglers, including members of this very forum, have written off as dead. Yet all of these fish were in perfect condition and in places where you would expect them.
Sooooo, y'know - let's not right off the old girls yet, eh?