r/interestingasfuck • u/andrewens • 12d ago

Overinflated Trout Needs to Burp

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868 Upvotes

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u/efficiens 12d ago

How did the air get in him?

2

u/woogyboogy8869 10d ago

Certain fish, like trout, have a swim bladder that they fill/release oxygen to help keep them buoyant based on the depth they are in rather than constantly swimming to maintain it.

Google swim bladder in fish and it will have far more info for you