With all the genetic research occurring perhaps a marine biologist will create a carp that eats zebra mussels and not plankton.
But I just don't think this is the carp that's going to eat only the zebras and not wipe out the weedbeds we need to keep to have good game fishing.
If somebody -- perhaps a marine biologist -- creates the right genetically controlled carp it will exist. I don't understand what specific "this carp" is that you speak of.