How about an otter taking every carp (all 7 of them) in a water that is over 90 acres and over 35/40ft deep.
That water contains bream (it’s done the record but not claimed, a number of times), tench, roach, perch, pike, and eels.
This same lake has people walking around it every day of the year, sailing boats and bird watchers. It’s not a quiet lake. The otters have evolved into a species that doesn’t fear man like they used to. Is this down to being hand reared???
You cant compare eras in the same light when there are massive differences in the variables.