Some relatively new and pretty cool catch-and-release research has evaluated the effects of barotrauma — uncontrolled swim bladder expansion — on the vision of rosy rockfish and angling stress on a variety of shark species.
Rockfish are deepwater Pacific fish that experience barotrauma when brought to the surface. Typical signs of barotrauma include protruding eyes, often called “pop-eye.” You know, where the stomach protrudes through the mouth and the fish has the inability to return to depth upon release.
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