Scientists in British Columbia recorded fish sounds linked to behaviors, paving the way for sound-based conservation tools.

Biologists in British Columbia have identified distinct sounds—such as knocking, grunting, and croaking—produced by eight fish species, including rockfish and ling cod, off the southwest coast. Using underwater microphones and video, researchers linked specific noises to behaviors like predator avoidance and feeding. The study, published in the Journal of Fish Biology, suggests sound-based monitoring could aid conservation and fisheries management, with plans to develop a "fish sound detector" and explore regional sound variations.