Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Coastal Resident Stock of Bottlenose Dolphins in the Jeju Islands

제주 연안에 출현하는 큰돌고래(Bottlenose dolphins) 연안 정착성 개체군

  • 최석관 (국립수산과학원 고래연구소) ;
  • 김현우 (국립수산과학원 고래연구소) ;
  • 안용락 (국립수산과학원 고래연구소) ;
  • 박겸준 (국립수산과학원 고래연구소) ;
  • 김장근 (국립수산과학원 고래연구소)
  • Published : 2009.12.31
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Abstract

Recently, bottlenose dolphins have frequently appeared in coastal waters of the Jeju Islands. To determine whether these individuals belong to one or more pods, the Cetacean Research Institute (CRI) established visual and photo-identification surveys in the Jeju Islands from November 2007 to July 2009. During visual surveys, pods composed of 10 to 80 individuals were sighted mainly in the northeastern and northwestern of Jeju Islands. Eighty-nine individuals were identified and cataloged by photo-identification using natural nicks and notches on their dorsal fins. Thirty-six individuals were identified three times or more, and nine individuals were identified five times during seven surveys. One individual appeared in November 2007, August 2008, October 2008, April 2009, and July 2009. The results of our study confirm that these dolphins represent a coastal resident stock. Futhermore, we will establish dolphin abundance, management, and usage studies using continuous visual and photo-identification surveys.

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References

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