Long-term fishing Sharks are caught

divers observed sharks being caught by long-line fishing gear.analysis found that deep-sea shark habitats are being eaten away by arrested anglers.
study found that long-term fishing operations such as longline fishing encroached on almost a third of the deep-sea shark-inned areas. In some areas, this overlap is even higher. Longline fishing uses 100 kilometres of fish, including hundreds of hooks, to catch large numbers of deep-sea sharks.
sharks live in open water, and many species migrate long distances every year. To track their activities, David Sims and colleagues at the Plymouth Marine Life Society in the UK tagged nearly 1,700 deep-sea sharks with satellite launchers between 2002 and 2017.
team also mapped the activities of longline fishing vessels using data from automated identification systems installed on many vessels.
on average, long-term fishing operations overlapped with 24 per cent of shark-active marine area. This overlap has increased from 8 per cent in the eastern Pacific to 38 per cent in the south-west Indian Ocean, and fishing vessels tend to be found in places with particularly high shark densities in the world, such as the White Shark Cafe off the coast of California and the southern Great Barrier Reef in Australia.
authors argue that there are not many options for protecting sharks other than to seek a way out of the fishing industry. It is therefore recommended that protected areas be established around important shark areas.
of deep-sea shark species are at risk, including some that have the most overlap with fishing operations. For example, rat sharks, which share 47 per cent of the space with fisheries, are classified as vulnerable species, while endangered short-finned mackerel sharks overlap with fisheries by 37 per cent globally and by as much as 62 per cent in the North Atlantic. Vulnerable great white sharks overlap with endangered blue sharks by 35% and 49%, respectively. (Source: Feng Weiwei, China Science Journal)
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