Re:Superceded (Score 4, Insightful)

While ELF system is extremely slow, I remember the data rates being described as in the range of bits/minute, I am at a loss to understand how it effects mammalian sea life. The ELF and VLF systems use electromagnetic waves for communication, not acoustic. I think that you are confusing them with the high power active sonars used by the Navy, which I can only imagine as deafening to whales and dolphins.