What an interesting thread this is, many good points put forward to this conversation about this decline so carnt help myself to put my input in regarding:
I fish the W.avon have done on and off for 15 years, more so just concentrating on it,the last 4. One thing I have noticed in the past two is a serious otter problem occurring and affecting not just the barbel but everything. I fish predominantly for carp but obviously I pick up barbel,bream,chub all the time,With the bait what’s going in. I have a couple of spots that get pre baited heavily,weekly as my sessions are only short. There’s always been rumours over the years of otters spotted, different stretches,where they live etc but in my opinion never really any noticeable affect on the fishing.... not until end 2018 when a pair made home.
2018 season was a good 1, all sizes of barbel from low singles right up to over 14,with many doubles, same said for the chub and bream fishing, known bream pegs doing over 100lb in match’s a lot of the time with All fish in mint condition.
2019 season with a pair of otters and 4 cubs. Barbel to start with,nothing small,caught. same kind of stamp of numbers between mid to high doubles, doubles not as many nor to the size as last year but and a big but, damage to a lot of fish ie the telltale nics out of the tails , some bad gashes/ claw marks, 50% of the carp caught the same not many marks but bad tail damage, this is the same for chub and more so the bream ,with equally the match men no where near having the same bags. normal pleasure Angler’s struggling and complaining, where as years before could say ,you’d have a decent mix bag. That was in a year.
I know of other stretch’s on W.A that people are regularly travelling up from south to fish because they rivers have been decimated by otters,some saying it’s the new mecca for barbel?!?! I don’t agree by the way.
I know the wye still fishes well on its day with multiple hits as mentioned before 30+ fish in a day nothing big but a good average between 4-9lb regularly,as long as the dam hasn’t been opened but that’s another topic.
I carnt comment on water quality, breeding,etc on the w.a as the stretches, you never see the fish spawning but 2018 I did catch small barbel ( pound or so ) that would imply they are breeding,have breed recent, numbers don’t know but where’s there’s one ,there’s another so some good news.
These latest floods again imo don’t help the fishing ,certainly the carp get washed down stream. Fact.
Barbel I don’t know ,but the runs and swims are all affected which I think will affect the barbel liking or not there old haunts. resulting to them travelling/washed away to pastures new.
Fishing pressure another factor.
People taking the fish.
Biggest problem is OTTERS we are all facing,and it’s getting worse. Defiantly .
All I can say is we can only hope,wait and see to what this year brings, bearing in mind all of the factors everyone’s mentioned previously,
.
Good luck
steve