[LeifCarrotson]

This is not correct. Your rib cage and skull are scarcely able to contain the immense pressure at 130 ft. When SCUBA diving, you inhale air at the same pressure as the water at your current depth, there's no force on your rib cage. When free diving, your flexibility allows your organs to compress into the space previously occupied by your lungs.

A fish's swim bladder is full of air that's been extracted from the water. As long as they don't go up and down too fast, they'll be fine at whatever depth.

But the other side of the equation is the partial pressures of various gasses dissolved in the blood. Humans experience nitrogen narcosis and oxygen toxicity just from breathing regular air and need special mixtures, fish need special biology to cope.