How do fish like zoarcid survive 300C by hydrothermal vents?

https://www.reddit.com/r/askscience/comments/1jau27z/how_do_fish_like_zoarcid_survive_300c_by/

created by Sad-Comfortable4874 on 14/03/2025 at 02:51 UTC

1 upvotes, 1 top-level comments (showing 1)

Question above, along with plants clams squids crabs etc. How do they not boil instantly? (I understand the water doesn't boil due to the pressure, but how do fish withstand the heat even if it isn't boiling?)

Comments

Comment by Germanofthebored at 15/03/2025 at 23:04 UTC

7 upvotes, 0 direct replies

The 300-400ÂșC is seen for the water directly coming out of a black smoker. The chemicals in the water fuel a food web that starts with thermophilic bacteria, but most of animals are actually far enough away from the superheated water to benefit from the chemicals and bacteria, but they experience much lower temperatures