yep.
my favourite pole lake has a cracking head of tench,roach and bream,that vary in size from a couple of ounces up to several pounds the farmer charges a fiver a day and i know of several anglers who have taken fish for their own ponds.
in fact my fishing mate took 6 tench one session i was absent for his pond.they all weighed just under a pound,three male,three female,you can't buy them that price and size for a fiver each.not that he should have stolen them.