East Sea shark sightings increase due to rising water temperatures

Rising sea temperatures in the East Sea are driving an increase in large shark sightings along the South Korean coast. According to the National Institute of Fisheries Science, the number of sharks caught as bycatch has reached 68 this year, a 2.5-fold increase compared to the same period last year. Species such as shortfin mako and great white sharks have been reported.

Experts attribute this shift to changes in the marine food chain. As average water temperatures have risen by approximately 1.9 degrees Celsius, warm-water species like mackerel and bluefin tuna have migrated into the area. This influx of prey has subsequently drawn larger predatory sharks to the region.

In response to the increased presence of potentially dangerous sharks near swimming areas, local governments in Gangwon and Gyeongsangbuk-do have implemented safety measures. These include the installation of shark protection nets and electric deterrent devices at popular beaches, alongside increased patrols by the maritime police.