How does the FAU shark repellent device work?

The device clamps onto fishing lines and uses zinc and graphite to create a small electric field that deters sharks by startling them.

What percentage of shark bycatch does the FAU device reduce?

Field studies showed a reduction in open-ocean shark bycatch by 62% to 70%.

What are the economic benefits of the shark repellent device for fishermen?

The device aims to increase fisherman profitability by reducing costly damage to gear from sharks and minimizing lost fishing time.

Home / Environment / FAU Device Slashes Shark Bycatch

FAU Device Slashes Shark Bycatch

11 Feb

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Summary

Device uses zinc and graphite to create electric field.
Study showed 62-70% reduction in open-ocean shark bycatch.
Device aims to boost fisherman profitability and aid conservation.

A novel shark-repellent device developed by Florida Atlantic University (FAU) offers a promising solution to reduce shark bycatch in commercial fishing. This device, which clamps onto fishing lines near the hook, utilizes a combination of zinc and graphite to create a localized electric field. This field effectively deters sharks, which possess specialized electroreceptors, from approaching the bait.

Initial field studies have shown remarkable success, reducing bycatch of open-ocean sharks by 62% to 70% without impacting catches of commercially valuable species like tuna and swordfish. Researchers noted that the device's effectiveness varied, with certain species like dogfish proving less susceptible due to fewer electroreceptors.

The initiative is driven by both conservation goals and economic imperatives. Shark bycatch results in significant gear damage and costs for fishermen, while also posing risks to crew members. By potentially preventing sharks from taking the bait, the device aims to increase fishing profitability.