Noise-induced masking of hearing in a labyrinth fish: effects on sound detection in croaking gouramis.

ABSTRACT: An increasing level of anthropogenic underwater noise (shipping, drilling, sonar use, etc.) impairs acoustic orientation and communication in fish by hindering signal transmission or detection. Different noise regimes can reduce the ability to detect sounds of conspecifics due to an upward shift of the hearing threshold, a phenomenon termed masking. We therefore investigated the masking effect of white noise on the auditory thresholds in female croaking gouramis (Trichopsis vittata, Osphronemidae). We hypothesized that noise would influence the detection of conspecific vocalizations and thus acoustic communication. The auditory evoked potentials (AEP) thresholds were measured at six different frequencies between 0.1 and 4 kHz using the AEP recording technique. Sound pressure

SUBMITTER: Maiditsch IP 

PROVIDER: S-EPMC9657181 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature