Recognizing Barotrauma in Recreational Fishing
Signs NOAA Fisheries tells anglers to look for in deep-caught fish and why prompt release at depth matters.
Know The Visible Signs
NOAA Fisheries lists bulging eyes, a stomach protruding from the mouth, a bloated midsection, lifted scales, and sluggish swimming among signs of barotrauma. Not every fish will show every sign.
The agency says fish caught deeper than 30 feet will generally suffer some effects. Treat depth as a reason to prepare release equipment, not as permission to diagnose an animal from one photograph.
Plan Before Fishing Deep
Carry a descending device, release weight, or release basket suitable for the target and fishing platform. Place it where it can be attached without searching through storage after the fish reaches the surface.
Review fishery-specific regulations and guidance. Some jurisdictions require descending equipment aboard or prescribe how it must be rigged and available.
Minimize Time At The Surface
Dehook promptly, keep handling to a minimum, and skip optional photographs when the fish needs recompression. NOAA describes release at depth as the best way to help a fish suffering from barotrauma survive.
If a fish will be legally retained, follow the applicable handling and possession rules. Catch-and-release guidance should not be mixed with requirements for retained catch.
Do Not Improvise An Invasive Procedure
NOAA notes venting as an alternative when prompt use of a descending device is not possible, but it directs anglers to established venting guidance. An invasive technique should not be learned from a short summary at the side of the boat.
For a planned deep-water trip, learn the fishery's approved procedure in advance and practice the non-invasive device with a weight. Prepared release equipment is safer than deciding under pressure.