Very interesting but I am still of the opinion that it is not specific to a single race or species of pike but rather a condition that any pike can contract and is a disease or parasite that causes the unique look.
I've done some checking with other Pikeafishanados and have heard there is a collection area for this "Manchada" pike type. Also have been told it could be a skin condition some predators have, not just lugubris but also lacustris pikes, as well as other fish. Will post more info as it comes in!