The tool emits small electrical signals that dissuades sharks and rays from chomping longline fishing lures.
Credit: Robert Enever
According to the new study, two fishing boats went on a total of 11 trips off the coast of southern France last year, during which they used 22 longlines deployed with over 18,000 hooks. The resulting hauls showed 91 percent fewer sharks and 71 percent fewer rays, while tuna harvests were barely affected by the SharkGuard additions.
In the near future, scaling up SharkGuard availability could have an extremely dramatic and near immediate effect on reversing an unnecessary, destructive byproduct of commercial fishing. Until then, keep an eye on those great white shark counts off US coasts—
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