Eli5: why not bring deep sea fish to the surface in a pressurized container?

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A lot of deep see fish die and/or severely deform when they’re brought to the surface for study. Why not put them in a pressurized container so they can be preserved in a way that leaves them the same?

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Anonymous 0 Comments

I mean you could but you wouldn’t really be able to study it without breaking the seal of the container. To get anything in or out you’d need an additional chamber that would pressurize before opening up to the internal chamber. I guess you could get somebody inside with a scuba suit but it’d have to be massive and I’m not sure how safe it is to pressurize a tank of water with a person in it. You’d essentially have a really expensive aquarium with a dead fish in it

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