Florida Researchers Measured Shark Hearing Range
A new study reveals how far blacktip sharks can detect underwater sounds in their natural habitat.
Updated on Sept. 25, 2026 in Environmental
Florida Atlantic University researchers have determined that free-swimming blacktip sharks can detect and react to sounds from nearly 250 feet away. The study, which observed the sharks changing their swimming direction in response to acoustic stimuli, was published in Integrative Organismal Biology.
Why it matters
Understanding the precise acoustic reach of marine predators provides insight into how sharks navigate and respond to their environment. This discovery quantifies the range at which human or natural sounds may influence the behavior of these animals.
Blacktip sharks reacted to sound sources by altering their swimming path at a distance of nearly 250 feet. These measurements were conducted in the acoustic far field, a region where sound waves have stabilized away from the source.
The players
Florida Atlantic University
A public research university that focuses on marine science and ocean engineering studies.
The details
The team utilized an underwater speaker to broadcast stimuli while monitoring the sharks with an aerial drone, which provided a top-down view of the animals' movements. By tracking the free-swimming sharks, researchers were able to confirm that the animals responded to the sounds by actively changing their direction away from the source. This experiment specifically targeted reactions within the acoustic far field—the area sufficiently distant from a sound source that the pressure and particle velocity are proportional.
Timeline
September 25, 2026: The study was published in the journal Integrative Organismal Biology.
The Tech Race
This research expands upon long-standing efforts to map the sensory thresholds of marine life using remote sensing and controlled acoustic playback. It provides a new benchmark for understanding how human-generated noise interacts with natural shark navigation.
This data helps ocean researchers and coastal managers refine models on how noise pollution affects marine wildlife in Florida waters. It offers a new baseline for understanding when and where sound mitigation might be necessary to avoid disrupting shark behavior.
The takeaway
The study confirms that blacktip sharks possess a sophisticated acoustic detection range of 250 feet, which significantly informs how scientists view predator-prey interactions. Readers can follow upcoming research in Integrative Organismal Biology to see if these findings extend to other shark species.
Further reading
For more on how local coastal ecosystems are being studied, visit the Environmental section.
Source note: This article includes information reported by Enn.
