Catfish are scent-targeting scavengers of the highest order. But did you know that they can also be called to the hook?
Catfish are often as misunderstood as the anglers who seek them. Although believed by many to be simpletons—bottom-dwelling scavengers that spend their time slowly sniffing around the dark and murky depths looking for their next stinky meal—cats are actually very sophisticated creatures able to detect sounds, vibrations, and smells far better than many other species of fish.
Whereas most fish have an inner ear independent of their swim bladder, the otolith of the catfish is connected to its swim bladder via a series of small bones. Sound waves traveling through the water create vibrations, which transmit to the otolith in the fish’s inner ear. These vibrations are then communicated to the catfish’s brain, giving it a heightened ability to detect high frequencies.
This super-charged sense gives catfish a superior ability to detect the sound and vibration emitted by forage fish species. That’s something that many U.S. catfish anglers have failed to take advantage of—until now.
Enter the Clonk
Anglers have been using various sound-producing techniques to attract freshwater fish for years. A favorite among striped bass anglers, for example, is to rapidly beat a fishing rod on the water’s surface to mimic the sound and sight of a topwater feeding frenzy. These same anglers have also been known to beat a rubber mallet on the boat deck to draw in fish. It might seem odd, but it works. I’ve witnessed the results firsthand.
Catfish respond to sound as well. European catfish anglers have sworn by the effectiveness of using sound to catch cats for decades. And there’s a growing group of catfish anglers all over the United States who are starting to as well; they have begun to introduce sound to their catfish rigs using floats and noise-making catfish lures. Think of them as Rat-L-Traps for cats.