From Below; One thing is really annoying me

I've never read Darcy Coates before and so far I'm not sold. No spoilers in my own text and I request none in the comments but I have to rant.

One character is a marine biologist. I am not. She keeps talking about how this part of the ocean is practically sterile and supports no sea life.

Please, someone correct me if I'm wrong but I'm pretty sure that's impossible. Yes, I know I'm reading a horror about ghosts but I like the grounded parts of the plot to at least make sense.

Anyway I'm going to keep reading.