Researchers Identify Beloved Sea Creature as 3-Meter Female Dusky Shark
Bukang-i, the shark that has been living in a canal at Busan’s North Port Waterfront Park for nearly three weeks, has been identified as a female dusky shark measuring about 3 meters in length. This identification was made by researchers at the National Institute of Fisheries Science, who analyzed close-up footage revealing the distinct ridge between its dorsal fins.
Initially, the species was thought to be either a copper shark or a dusky shark, with the latter being confirmed after observation. Distinguishing the two species is challenging since they are closely related, but copper sharks do not possess the ridge found on dusky sharks. The researchers estimated Bukang-i’s length by comparing it to nearby structures and identified its sex based on anatomical characteristics.
Dusky sharks are classified as endangered on the International Union for Conservation of Nature’s Red List, largely due to declining populations. They grow slowly, reproduce live young, and can reach lengths of up to 4.2 meters. This species was first documented in South Korean waters in 2019 and has since been observed along the coastline, including Busan and Jeju Island.
Despite two unsuccessful attempts to guide Bukang-i back to the ocean, as she repeatedly retreated deeper into the canal, the reasons for her behavior remain unclear. Since her arrival, Bukang-i has captivated crowds at the waterfront park, with visits surpassing a million by Monday. The institute plans to continue monitoring her health and swimming behavior, working with local authorities if any concerns arise.
