Australian scientists have unveiled a promising approach to deterring attacks by great white sharks: LED strip lights affixed to the bottom of surfboards.
A study conducted in Mossel Bay, South Africa, examined the effectiveness of seal-shaped boards adorned with varying configurations of LED lights. It was discovered that the lights significantly distorted the silhouette of the “decoys,” obscuring them from the sharks’ view against the sunlight.
Dr. Laura Ryan, lead researcher from Macquarie University, emphasized that great white sharks, responsible for most human shark-bite fatalities, often attack from below, mistaking surfers’ silhouettes for seals. The study suggests that LED lights could provide a non-invasive and cost-effective means of shark restraint, unlike nets or drones.
The study, published in the journal Current Biology, tested three intensities of LED lights. Results showed that brighter, horizontally-aligned lights were less likely to attract sharks.
Dr. Ryan and her team are now working on prototype lighting strips for testing on surfboards and kayaks, aiming to further develop this innovative safety measure. Their research holds great promise for mitigating shark attacks and enhancing safety for surfers and other ocean-goers.
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