I blame carp anglers who can’t be bothered to learn to fish properly. Ie angling and catching, not trapping!
I would say there are a few around the area that no one wants to take on.There is a lake near me which is free fishing as no one wants to take it on where the Tench go up to 9lb at least, as this was in the Angling Times last year under the Drennan cup.
£12 per pound is pretty good. However, I suspect that may be for fish less than about 1.5/2lb. 2lb is about the limit for most commercial fish farms to produce, they take too long to get to that size. Fish much bigger are usually around £15/lb and more for even bigger fish.At £12 a lb tench are an expensive fish to stock and they are in short supply.
Last time we bought tench they were £18 per pound plus delivery plus blooming VAT.I'm sure you are right Chris. One of my clubs stocked 34 tench between 4 and 8 lb into a nice local water so at a median figure the cost would have been around 3k. Multiply that by say 100 waters and the cost is way beyond resources of any club. Small fish will be cheaper but they make a nice snack for the cormorants, mink, pike and other predators.