Old fishing hooks are severe hazards for sharks

phys.org | 9/12/2019 | Staff
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Startling data fresh off an eight-year tiger shark study in French Polynesia shows severe impacts the creatures of the sea face long after they are cut loose from fishing lines.

Many sharks are swimming around with stainless steel hooks lodged into their jaws. New research revealed sharks can retain those hooks for at least seven years and possibly an entire lifetime.

Consequences - Animals - Interactions - University - Hawaiʻi

"That can have profound consequences for those animals. It can injure or even perhaps kill them because they're unable to feed properly after these interactions," said University of Hawaiʻi marine biology Associate Professor Carl Meyer. The notable shark expert is one of four researchers assigned to the project that launched in 2011.

According to the study, many tiger sharks are accidentally hooked by long line fisheries targeting tuna and swordfish. Data confirmed fishing boats hook millions of sharks each year, and about one-third bite through the line or are set free with hooks protruding from their jaws. Some sharks had up to seven deeply wedged hooks, according to researchers.

Meyer - Team - Tiger - Sharks - Tahiti

Meyer's four-member team studied 55 tiger sharks just outside Tahiti's northwest coast. And it...
(Excerpt) Read more at: phys.org
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