Abstract
Acoustic displays have been observed in representatives of 30 or more families of bony fishes. Thanks to Art Myrberg’s groundbreaking work, we have insights into the multitude of functions of acoustic signalling in fishes including mate choice, individual and species recognition, reduction of territory intrusions, and interception. Recent studies, many of which have arisen from Art’s work, focus on ontogenetic and seasonal changes, female vocalizations, and effects of ambient and anthropogenic noise in hearing and sound communication. In croaking gouramis (labyrinth fishes), for example, ontogenetic development of acoustic communication depends on changes in sound parameters, increases in sound levels, and auditory sensitivities. The importance of seasonal changes in hearing was recently uncovered in toadfish and cyprinids. Generally male fish display acoustically to attract females, but the opposite may occur. Only female croaking gouramis vocalize during mating. Ecoacoustical investigations reveal that hearing specialists (cyprinids) are well adapted to the low ambient noise levels of standing freshwaters. They are heavily masked in flowing waters, unlike generalists, which are merely affected by ambient noise. Gaussian and ship noise diminishes a fish’s ability to detect sounds and resolve temporal patterns, indicating that human‐made noise affects acoustic orientation and communication in fishes. [Work supported by FWF.]
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call