What's a "groundfish"? Oregon's marine waters are home to many different species of groundfish (bottomfish), including lingcod, sablefish, cabezon, rockfishes, greenlings, and many species
of flatfishes, sharks and skates. Pacific halibut is not a groundfish species.
Watch a Yelloweye Rockfish get released using a recompression cage.
In this video, a sport-caught Yelloweye Rockfish is placed in a cage and then lowered to about 70 feet before being released. Note the barotrauma symptoms at the surface: gut protruding outside of the mouth, bloated body, and disorientation. Upon descent, the gut retracts, and the fish shows good orientation before swimming strongly downward.
When rockfish are caught in deep water (>100 feet, or 17 fathoms), the resulting barotrauma symptoms can look dire. However, if recompressed, a fish's immediate symptoms appear to resolve and many fish swim away.
This video was made in 2005 during ODFW research to evaluate how rockfish react to recompression.
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