Fisheries and Aquatic Sciences

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Feasibility of Photo-identification Techniques for the Bottlenose Dolphins(Tursiops truncatus) from Jeju Island, Korea

  • Song, Kyung-Jun (University-Research Institute Interdisciplinary Program of Fisheries and Oceanography, Graduate School, Pukyong National University) ;
  • Kim, Zang-Geun (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • An, Yong-Rock (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Choi, Seok-Gwan (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Sohn, Haw-Sun (Research and Development Planning Division, National Fisheries Research and Development Institute) ;
  • Zhang, Chang-Ik (Division of Marine Production System Management, Pukyong National University)
  • Published : 2008.09.30
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Abstract

The feasibility of photo-identification techniques for the bottlenose dolphins from Jeju Island, Korea, and the potential for dolphin watching were simultaneously evaluated in this study. During the sighting survey, a pod of bottlenose dolphins composed of approximately 30 individuals was observed in the southwestern coastal area of Jeju Island. Among 35 suitable photographs, five bottlenose dolphin individuals were identified and cataloged using unique nicks and notches on their dorsal fins. This shows that the Jeju Island dolphins can be individually identified by the nicks and notches on their dorsal fins using photo-identification techniques. Furthermore, the Jeju Island population appears to be suitable for long-term population biology studies using this technique. The potential for dolphin watching around the island would be higher if more information on the seasonal distribution, movement, and residency of this population were obtained.

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