Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Feasibility of Aerial Surveys of Finless Porpoise Neophocaena asiaeorientalis off the West Coast of Korea

한국 서해에서 상괭이(Neophocaena asiaeorientalis)의 항공 조사 타당성

  • Park, Kyum Joon (Cetacean Research Institute, National Fisheries Research & Development Institute) ;
  • Sohn, Hawsun (Cetacean Research Institute, National Fisheries Research & Development Institute) ;
  • Kim, Yeong Hye (Research and Development Planning Division, National Fisheries Research & Development Institute) ;
  • Kim, Doo Nam (Cetacean Research Institute, National Fisheries Research & Development Institute) ;
  • Kim, Hyun Woo (Cetacean Research Institute, National Fisheries Research & Development Institute) ;
  • An, Du Hae (Cetacean Research Institute, National Fisheries Research & Development Institute) ;
  • An, Yong-Rock (Cetacean Research Institute, National Fisheries Research & Development Institute)
  • 박겸준 (국립수산과학원 고래연구소) ;
  • 손호선 (국립수산과학원 고래연구소) ;
  • 김영혜 (국립수산과학원 연구기획과) ;
  • 김두남 (국립수산과학원 고래연구소) ;
  • 김현우 (국립수산과학원 고래연구소) ;
  • 안두해 (국립수산과학원 고래연구소) ;
  • 안용락 (국립수산과학원 고래연구소)
  • Received : 2013.10.14
  • Accepted : 2013.11.29
  • Published : 2013.12.31
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Abstract

Vessel-based sighting surveys for cetaceans have been conducted in Korean waters since 2000. The supporting data estimate the abundance of finless porpoises along the west coast of Korea; however, they are insufficient because of the coverage and frequency of the surveys. A preliminary aerial survey was conducted in 2011, and the results were assessed with respect to a sighting survey operated by a research vessel in order to compare effectiveness and potentiality. A total of 110.00 nautical miles of effective efforts were made with three sightings under Beaufort scale 4 in the aerial survey, while the vessel-operated survey covered 403.38 nautical miles over 7 days without any sightings under Beaufort scale 4. The standard deviation of the altitude in this survey was 22.7 m, which was significantly higher than that of the referenced study of 4.3 m.

Keywords

References

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