Electromagnetic fish hook reduces accidental shark catches

In fisheries all over the world, many fish are caught using a process known as pelagic longlining. This consists of fishing crews traveling out into the open ocean and deploying a series of baited hooks that are all attached to one horizontal main line, that can range from 20 to 40 miles (32 to 64 km) in length. After being left to sit in the water for a period of time, the line is hauled abroad a fishing vessel, where the fishes that took the bait are removed from the hooks. Unfortunately, even though they're not usually one of the targeted species, sometimes sharks will be among the fish captured. A new type of fish hook, however, is said to reduce unintended shark catches by up to 94 percent.

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