The North Dakota Game and Fish department is encouraging anglers to keep fish caught in depths over 25 feet, instead of practicing “catch-and-release.”
"When you catch fish from deeper water, as you bring them up, it's like when a diver gets the bends," said Fisheries Management section leader Scott Gangl. "The change in air pressure could really affect those fish."
Gangl said while some fish could survive, many fish won't.
"Anglers need to be aware of that," Gangl said.
The change in pressure will cause a fish’s swim bladder to expand.