again, a lot of words yet didn't specify the impacts. From LLM:

- vent animals don’t live off the heat. They live off the chemistry in the vent fluid

- so changing of vent flow can be disruptiev

- altering fluid chemistry. organisms there live in very tight thermal and chemical gradients, so little changes can be devastating

- Anchors, drill rigs, equipment frames and power cables crush things

- secondary human/machinery pollution from Leaks of a working fluid, if it’s a closed loop using something like ammonia, antifouling coatings and corrosion products.

- subseafloor microbial biosphere

Would love for experts in this field to chime in though. fascinating stuff.