

Here’s an enormous life lesson that took me decades to learn: you cannot take responsibility for anyone else’s happiness. If she is truly a danger to herself, this is usually mandatory reporting territory depending on your local laws. Act accordingly.
If you’re suddenly feeling your connection to humanity above and beyond getting laid, here is some basic info on what you can do: https://www.nami.org/relationships/how-to-talk-and-listen-to-someone-experiencing-suicidal-thoughts/
Most benthic life (by number) start as tiny, motile creatures. Screens would reduce head pressure and require maintenance. Barnacles of all kinds, as an example critter, settle on everything to which they can adhere. I’m guessing the engineers considered these complications since there have been past power project failures because of sea life. I wish the article went into those mitigations. If it’s somehow a non-issue by nature of the design, my curiosity is even more piqued.