Which freshwater fish uses a swim bladder to produce a drumming sound?

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The freshwater drum uses its swim bladder to produce a drumming sound.

The freshwater drum, Aplodinotus grunniens, is the only North American member of the drum family that lives entirely in freshwater. Specialized muscles vibrate against the swim bladder, which acts as a resonating chamber and amplifies the resulting sound. Males are particularly associated with drumming during the breeding season.

The species is native to large rivers and lakes across much of central and eastern North America. It feeds near the bottom on insects, crayfish, mussels and smaller fish. Its strong pharyngeal teeth, located in the throat, help crush hard-shelled prey.

The freshwater drum is not the same fish as the black drum, a related species that mainly inhabits coastal marine and estuarine waters. The freshwater species gets its common name from the low, drum-like noises that can sometimes be heard underwater or from boats.

Source: Wikipedia · fact-checked Sept. 2026

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