Functional plasticity of the swim bladder as an acoustic organ for communication in a vocal fish.

ABSTRACT: Teleost fishes have evolved a number of sound-producing mechanisms, including vibrations of the swim bladder. In addition to sound production, the swim bladder also aids in sound reception. While the production and reception of sound by the swim bladder has been described separately in fishes, the extent to which it operates for both in a single species is unknown. Here, using morphological, electrophysiological and modelling approaches, we show that the swim bladder of male plainfin midshipman fish (Porichthys notatus) exhibits reproductive state-dependent changes in morphology and function for sound production and reception. Non-reproductive males possess rostral 'horn-like' swim bladder extensions that enhance low-frequency (less than 800 Hz) sound pressure sensitivity by decreas

SUBMITTER: Rogers LS 

PROVIDER: S-EPMC10716664 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature