I agree with Dave...but it's been a worsening situation with the flounders for a few years. I think it's about poor spawning / recruitment....possibily something has changed where they spawn in Lyme Bay.
Evidence, other than the poor catches, is seen in the Summer months. It used to be the case that when I used to launch at Mudeford [and the water is clear in Summer], there would be lots of little postage stamp size flatties zipping about as you paddled in the shallows....now you just see the odd one or two.
Alun.