Uuugh, Carp is the worst tasting fish that I’ve ever had. The flesh is slimy and filled with bones.
The chief basically stewed it in hot sauce to drown out the muddy taste of the fish.
Carp is still somewhat of a staple for a Christmas dinner for some in Europe, especially Catholics (e.g. in Poland).
It needs to be kept alive in fresh water for a few days to get rid of the nasty taste. Not too bad then.
In China, river-mud-flavor could be a delicacy...who knows...;-)