I revisited an old estate lake for the first time in 25 years for tench. Thankfully it had not been transformed into a carp fishery in the meantime, but has been transformed into a cr*p fishery instead.
The place still looks lovely, virtually unchanged really except the water was a bit clearer and the dam more overgrown as few anglers bother with it these days (no carp present or or night fishing allowed). Also they dont bother because there are no fish to speak of bar a few little perch or a very occasional tench. Cormorants and clear shallow water do not mix. I also heard it may have been ottered. The once magnificent Rudd are now long gone, the formerly abundant tench (typically 6-12 fish a session at 3-5Ib in those days) are barely hanging on - so i am told - as i certainly didnt see any.