Dang. Yet another example of learning some more up-to-date info on a topic that interests me...only to wish that I had remained blissfully ignorant of developments. My knowledge of current developments in fishing...as in aquariums and many other of my interests...is pretty old and out-of-date. Check my sigline.
Just to clarify: when you talk of "commercial" carp fishing, are you referring to fishing boats capturing them with nets, for sale? Or are these some kind of "pay-for-play" operation, where you are charged an admission fee to fish a private body of water? I know that type of operation seems to be common in Europe for many types of hunting...the so-called "estate" hunts. They exist here in Canada, but they're not that common, or at least not yet.
In the spirit of giving the experience a fair shake, I hunted a private reserve once in Texas; it felt like going to a grocery store or a butcher shop with a rifle. Not my cup of tea at all. It would be sad to learn that fishing is being destroyed by the same type of greedy commercialism.
Edited to add: I just realized how far off topic I've help to drag this thread. My apologies. My Xmas gift-to-myself in the aquarium area is several large slabs of frozen foods; brine shrimp, bloodworms, Mysis, plankton and silversildes. It was nice to return some variety to my fish food stash and to my fishes' diets.