User blog comment:Evans0305/BioShock 2 Concepts: Aqua Splicer/@comment-1401334-20110402191815

This reminds me of a cross between the necromorphs in Dead Space and the Rehabim vampires in Soul Reaver. I recall the developers talking in interviews around the time when the Hunting the Big Sister video was released, saying that the player would not encounter enemies in the water and that underwater segments would be brief periods of relief, so the idea of aquatic Splicers must have been dropped before Spring of 2009.