Not entirely sure why, but I think the point is that in a water with a variety of species and sizes, otters, in your case, seemed to mainly take smaller fish like skimmers?
The water I've been referring to here is, alone amongst the club's mixed stillwaters, cultivated, and has been for years, as a carp water. It's not an easy, massively stocked commercial type water, but demands a patient and thoughtful approach. Most of the carp are, I'm told, in double figures, some 20's. I'm not a carp angler, but it's clearly their pride and joy.
The loss of several good-sized fish, in short order, has caused a good deal of concern. Photo's of the carcasses, mostly intact, are online, as are photos of the dead waterfowl found at the same time, and video of the otters, so there's no question of rumour or exaggeration, as some posters claim - not that you have - whenever otter damage is mentioned. The water has been under careful management via advice from consultants etc for a long time, and it would be perverse to argue that, in a water that had never seen an otter until this event, the club ought to have been working towards a more varied menu just in case otters decided to show up.
There is, of course, the pro-fox argument: if you gather some chickens together, it's your fault, not the fox's, if you attract predation. But the spread of otters is presenting us with new situations and fresh surprises. And how far can the chicken/fox argument be pushed? If badgers and moles dig my lawn up, is it my fault for making one? (Actually, they do, and I don't personally mind, but that's another question. Not everyone is obliged to be so tolerant) If I| get mugged is it my fault for walking round with money in my pocket? I understand the arguments for protecting a species; but I can also see that a protected species can become a nuisance in some contexts, and a threat to waters that aren't overstocked commercials or moribund rivers.