Could the sounds of spawning lure lake trout?

Lake trout make noise in bed, according to new research by Great Lakes scientists.

The species commonly growl, snap, quiver and thump while spawning, according to a study in the “Canadian Journal of Fisheries and Aquatic Sciences.”

The report may cause a smirk, but researchers say the findings are serious.

“Peeping on spawning lake trout with a camera and microphone could be the premise of an interesting comedy skit, but also makes for interesting science that could help improve how fish populations are monitored,” said Nick Johnson, an ecologist with the U.S. Geological Survey.

Scientists could potentially use the audio sounds to lure fish to spawning areas, Johnson said.

Lake Trout

Lake Trout

“If you walk down the street and hear a party going you might want to check it out,” he said. “There are historical reefs in the Great Lakes that are no longer being used for spawning . . . we may be able to play back the sounds of reproduction to lure in the trout and try to get them interested in spawning there.”

Johnson led a team that included researchers from Michigan State University, the University of Windsor and the University of Vermont, and that recorded spawning lake trout with cameras and hydrophones. Hydrophones are underwater microphones that detect the sounds of boats, waves and the quietest fish.

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